COMMON-CALIBER RADIATION UNIT AND ANTENNA

Abstract

 The present application relates to the field of communication antenna, and provides a common aperture radiation unit and antenna. The common aperture radiation unit includes a base, a first frequency band unit, and a second frequency band unit. The first frequency band unit includes a low frequency radiator and a first feeder group, the low frequency radiator is supported on the base, the low frequency radiator includes at least one polarization, and the first feeder group includes at least one first feeder member, which is used to coupling feed the low frequency radiator. The second frequency band unit is embedded in the first frequency band unit, the second frequency band unit includes a high frequency radiator and a second feeder group. The high frequency radiator is supported on the base, the high frequency radiator includes at least one polarization, and the second feeder group includes at least one second feeder member used to coupling feed the high frequency radiator.

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] The present application claims priority to Chinese Patent Application No. 202211305985X, filed on October 24, 2022, entitled "Common Aperture Radiation Unit and Antenna", which is hereby incorporated by reference in its entirety.

FIELD

[0002] The present application relates to the field of communication antenna, in particular to a common aperture radiation unit and an antenna.

BACKGROUND

[0003] With the development of 5G communication technology, 4G/5G integrated antenna has become the mainstream antenna. However, the requirements for antenna in multi-frequency integration have also increased. It is necessary to achieve both miniaturization of antenna size and integration between multi-bands and multiple standards to ensure that each frequency band index does not deteriorate. At the same time, since costs and weight are also important assessment indicators for antennas, miniaturization, high performance, and low costs for antennas have become the development goals of designers.

[0004] A traditional high and low frequency common aperture radiation unit using a scheme including an oscillator wire and terminal has poor intermodulation stability and low reliability, and a radiation body of the radiation unit needs to be electroplated, resulting in high production costs.

SUMMARY

[0005] The present application provides a common aperture radiation unit, including:

a base, provided with a first through hole and a second through hole;

a first frequency band unit, including a low frequency radiator and a first feeder group, where the low frequency radiator is supported and provided on the base, the low frequency radiator includes at least one polarization composed of a symmetrical dipole binary array, the first feeder group includes at least one first feeder member, the first feeder member is provided corresponding to a low frequency binary array of a polarization of the low frequency radiator, the first feeder member includes a first connection section and a first feeder section, the first connection section is passed through the first through hole to access an external signal, and the first feeder section is coupled and connected to a corresponding low frequency binary array to coupling feed an input signal of the low frequency radiator; and

a second frequency band unit, embedded in the first frequency band unit, where the second frequency band unit includes a high frequency radiator and a second feeder group, the high frequency radiator is supported and provided on the base, the high frequency radiator includes at least one polarization composed of a symmetrical dipole binary array, the second feeder group includes at least one second feeder member, and the second feeder member is provided corresponding to a high frequency binary array of a polarization of the high frequency radiator, the second feeder member includes a second connection section and a second feeder section, the second connection section is passed through the second through hole to access an external signal, and the second feeder section is coupled and connected to a corresponding high frequency binary array to coupling feed an input signal of the high frequency radiator.

[0006] According to the common aperture radiation unit provided by the present application, the low frequency radiator includes two polarizations arranged in an orthogonal manner, the first feeder group includes two first feeder members, and the two first feeder members are provided in a one-to-one correspondence manner with the two polarizations of the low frequency radiator.

[0007] According to the common aperture radiation unit provided by the present application, the low frequency radiator is provided separately from the base; and the low frequency radiator is coupled and connected to the base, or the low frequency radiator is rigidly connected to the base through a metal fastener.

[0008] According to the common aperture radiation unit provided by the present application, the high frequency radiator is provided separately from the base; and the high frequency radiator is coupled and connected to the base, or the high frequency radiator is rigidly connected to the base through a metal fastener.

[0009] According to the common aperture radiation unit provided by the present application, a bottom of the base is provided with a first metal support and a second metal support, the first through hole runs through the first metal support, the second through hole runs through the second metal support, and both the first metal support and the second metal support are used to connect an outer conductor of an external unit; and a bottom of the low frequency radiator is provided with a first metal via hole and a second metal via hole, where the first metal via hole and the first through hole are provided correspondingly, the first connection section is passed through the first metal via hole and the first through hole to electrically connect an inner conductor of the external unit; and the second metal via hole and the second through hole are provided correspondingly, and the second connection section is passed through the second metal via hole and the second through hole to electrically connect the inner conductor of the external unit.

[0010] According to the common aperture radiation unit provided by the present application, the first feeder member is one of a sheet metal member, a die-casting member, or a printed circuit member; and/or, the second feeder member is one of a sheet metal member, a die-casting member, or a printed circuit member.

[0011] According to the common aperture radiation unit provided by the present application, the first feeder member is an integrated molding member; and/or, the second feeder member is an integrated molding member.

[0012] According to the common aperture radiation unit provided by the present application, the common aperture radiation unit further includes a guide piece, where the guide piece is provided on a side of the high frequency radiator opposite to the base, and the guide piece is spaced apart from the high frequency radiator.

[0013] The present application further provides an antenna, including any one of the above mentioned common aperture radiation units.

[0014] According to the antenna provided by the present application, the antenna includes a plurality of the common aperture radiation units, where the plurality of common aperture radiation units are a combination of units with the same frequency or a combination of at least partial units with different frequencies.

BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to clearly illustrate the solutions of the embodiments according to the present application, the accompanying drawings used in the description of the embodiments are briefly described below. It should be noted that the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings may be obtained according to these drawings without creative effort.

FIG. 1 is an exploded structural schematic diagram of a common aperture radiation unit according to an embodiment of the present application;

FIG. 2 is a structural schematic diagram of a first frequency band unit according to an embodiment of the present application;

FIG. 3 is a structural schematic diagram of a first feeder group according to an embodiment of the present application;

FIG. 4 is a structural schematic diagram of a second frequency band unit according to an embodiment of the present application;

FIG. 5 is a structural schematic diagram of a second feeder group according to an embodiment of the present application;

FIG. 6 is a structural schematic diagram of a base according to an embodiment of the present application;

FIG. 7 is a schematic assembly diagram of the first feeder group and the base according to an embodiment of the present application;

FIG. 8 is a schematic assembly diagram of the second feeder group and the base according to an embodiment of the present application;

FIG. 9 is a standing-wave ratio curve diagram of the first frequency band unit according to an embodiment of the present application; and

FIG. 10 is a standing-wave ratio curve diagram of the second frequency band unit according to an embodiment of the present application.

Reference signs:

[0016] 

1: base; 11 first through hole; 12: second through hole; 13: second connection hole; 14: first metal support; 15: second metal support; 16: welding notch;

2: first frequency band unit; 21: low frequency radiator; 211: low frequency dipole; 212: first connection hole; 213: first metal via hole; 214: second metal via hole; 22: first feeder group; 220: first feeder member; 221: first connection section; 222: first feeder section; 223: avoidance portion;

3: second frequency band unit; 31: high frequency radiator; 32: second feeder group; 320: second feeder member; 321: second connection section; 322: second feeder section; 323: encapsulation material; 33: guide piece;

500: external unit; 501: external conductor.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the objectives, solutions, and advantages of the present application clearer, the solutions in the present application are clearly described below in conjunction with the accompanying drawings in the present application. It should be noted that the described embodiments are part of the embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts are within the scope of protection of the present application.

[0018] It should be noted that the terms of "vertical direction", "horizontal direction", "+45° direction or -45° direction", "upper", "middle", "lower" and similar expressions are for illustrative purpose only and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purpose only and are not to be understood as indicating or implying relative importance.

[0019] In the present application, unless otherwise explicitly stated and limited, the terms "installation", "connection", "connected to", "fixing" and other terms should be understood in a broad sense. For example, it may be a fixed connection or a detachable connection, or may be integrated; it may be mechanically connected, electrically connected or communicable with each other; it may be directly connected or indirectly connected through an intermediate medium; it may be the internal communication inside two elements or may be an interactive relationship of two elements, unless otherwise expressly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application may be understood according to specific circumstances.

[0020] A common aperture radiation unit and antenna of the present application are described below with reference to FIGS. 1 to 8.

[0021] As shown in FIGS. 1 to 8, the common aperture radiation unit according to the present application includes a base 1, a first frequency band unit 2, and a second frequency band unit 3. The base 1 is provided with a first through hole 11 and a second through hole 12. The first frequency band unit 2 includes a low frequency radiator 21 and a first feeder group 22. The low frequency radiator 21 is supported and provided on the base 1. The low frequency radiator 21 includes at least one polarization composed of a symmetrical dipole binary array. The first feeder group 22 includes at least one first feeder member 220. One first feeder member 220 is provided corresponding to a low frequency binary array of the polarization of the low frequency radiator 21. The first feeder member 220 includes a first connection section 221 and a first feeder section 222. The first connection section 221 is passed through the first through hole 11 to access an external signal. The first feeder section 222 is coupled and connected to a corresponding low frequency binary array to coupling feed an input signal of a polarization of the low frequency radiator 21. The second frequency band unit 3 is embedded in the first frequency band unit 2. The second frequency band unit 3 includes a high frequency radiator 31 and a second feeder group 32. The high frequency radiator 31 is supported and provided on the base 1. The high frequency radiator 31 includes at least one polarization composed of a symmetrical dipole binary array. The second feeder group 32 includes at least one second feeder member 320. One second feeder member 320 is provided corresponding to a high frequency binary array of a polarization of the high frequency radiator 31. The second feeder member 320 includes a second connection section 321 and a second feeder section 322. The second connection section 321 is passed through the second through hole 12 to access an external signal. The second feeder section 322 is coupled and connected to a corresponding high frequency binary array to coupling feed an input signal of a polarization of the high frequency radiator 31.

[0022] A frequency of the low frequency radiator 21 is lower than a frequency of the high frequency radiator 31, that is, a radiation frequency of the first frequency band unit 2 is lower than a radiation frequency of the second frequency band unit 3.

[0023] In this embodiment, the second frequency band unit 3 is embedded in the first frequency band unit 2 to form a dual-frequency common aperture radiation unit to achieve dual-frequency feature. The low frequency radiator 21 and the high frequency radiator 31 are both supported and provided on the base 1, and the base 1 is a common part shared by the first frequency band unit 2 and the second frequency band unit 3. The base 1 supports and electrically connects the low frequency radiator 21 and the high frequency radiator 31 simultaneously, and the base 1 is also used to connect an external unit 500. The first connection section 221 of the first feeder member 220 is a connection portion, and the first feeder section 222 is a feeder portion. The first connection section 221 is passed through the first through hole 11 of the base 1, and then the first connection section 221 is connected to the external unit 500 after the first connection section 221 is passed through the base 1. The first feeder section 222 is coupled and arranged corresponding to a low frequency binary array of a polarization of the low frequency radiator 21, and through the external unit 500, an input signal passes through the first feeder member 220 to coupling feed an input signal of the polarization of the low frequency radiator 21, which achieves a signal input for the low frequency radiator 21. The second connection section 321 of the second feeder member 320 is a connection portion, and the second feeder section 322 is a feeder portion. The second connection section 321 is passed through the second through hole 12 of the base 1, and then the second connection section 321 is connected to the external unit 500 after the second connection section 321 is passed through the base 1. The second feeder section 322 is coupled and arranged corresponding to a high frequency binary array of a polarization of the high frequency radiator 31, and through the external unit 500, an input signal passes through the second feeder member 320 to coupling feed an input signal of the polarization of the high frequency radiator 31, which achieves a signal input for the high frequency radiator 31.

[0024] In the common aperture radiation unit provided by the present application, by embedding the first frequency band unit 2 and the second frequency band unit 3 and sharing the base 1, a compact structure and the miniaturization of the radiation unit are achieved, which may further reduce the windward area of the antenna. By achieving the signal input for the low frequency radiator 21 and the high frequency radiator 31 through coupling feeding, the terminal and the oscillator wire are removed on the basis of the traditional radiation unit, which may reduce the hole position on the reflection plate, improve the intermodulation stability, reduce the hidden danger for intermodulation caused by welding operations, improve reliability, and achieve low costs. Since the low frequency radiator 21 and the high frequency radiator 31 have no electrical connection with other parts, electroplating is not required, then the electroplating costs may be saved, and the costs are further reduced. At the same time, the beam deformation of the common aperture radiation unit is improved, and the performance is also improved, achieving an integration for multi-bands and multiple standards on the basis of miniaturizing the antenna and ensure that the indicators of each frequency band do not deteriorate, which overcomes the defects of poor intermodulation stability, low reliability and high costs of the traditional multi-frequency integrated antenna in the related art.

[0025] In an embodiment, as shown in FIG. 2, the low frequency binary array of each polarization of the low frequency radiator 21 includes two low frequency dipoles 211, and the two low frequency dipoles 211 are symmetrically arranged. In order to correspond to the two low frequency dipoles 211 of each polarization, the first feeder member 220 includes two first feeder sections 222. The two first feeder sections 222 are respectively coupled and connected to the two low frequency dipoles 211 of the same polarization, to feed an external signal to radiation arms of the two low frequency dipoles 211. A part of the first feeder section 222 is at a bottom of the low frequency radiator 21, and another part of the first feeder section 222 is bent upward to couple and connect to the low frequency dipole 211. An end of the first connection section 221 is connected to the two first feeder sections 222, and another end of the first connection section 221 is inserted into the first through hole 11 of the base 1 to access an external signal.

[0026] In an embodiment, as shown in FIG. 2 and FIG. 3, the low frequency radiator 21 includes two polarizations arranged in an orthogonal manner, and the first feeder group 22 includes two first feeder members 220. The two first feeder members 220 are provided in a one-to-one correspondence manner with the two polarizations of the low frequency radiator 21.

[0027] In this embodiment, the low frequency radiator 21 includes two polarizations composed of two symmetrical dipole binary arrays. The two polarizations are arranged in an orthogonal manner, for example, the two polarizations are arranged at ±45°. For the symmetrical dipole binary array of each of the polarizations, a corresponding feeder structure is provided. For example, the first feeder group 22 includes two polarized first feeder members 220 to achieve two polarized signal inputs to the low frequency radiator 21.

[0028] In an embodiment, as shown in FIG. 2, the low frequency dipole 211 is a half-wave bowl-shaped radiation oscillator, and the two binary arrays composed of two half-wave bowl-shaped radiation oscillators in the low frequency radiator 21 are arranged at ±45° to form an installation space in the low frequency radiator 21. The second frequency band unit 3 is embedded and installed in the installation space of the low frequency radiator 21.

[0029] In an embodiment, as shown in FIG. 3, due to the orthogonal arrangement of the two polarizations of the low frequency radiator 21, the first feeder sections 222 of the two first feeder members 220 corresponding to the two polarizations may have an overlapping area at the bottom of the low frequency radiator 21. The first feeder section 222 of one of the first feeder members 220 is provided with an avoidance portion 223 at the overlapping area. The avoidance portion 223 is bent in a direction away from the bottom of the low frequency radiator 21 to avoid cross contact with the first feeder section 222 of another first feeder member 220 to ensure that the two first feeder members 220 of the first feeder group 22 are fed independently.

[0030] In an embodiment, as shown in FIG. 4 and FIG. 5, the high frequency radiator 31 includes two polarizations composed of two symmetrical dipole binary arrays, and the two polarizations are arranged in an orthogonal manner. Correspondingly, the second feeder group 32 includes two polarized feeder structures, for example, the second feeder group 32 includes two second feeder members 320, where the two second feeder members 320 are provided in a one-to-one correspondence manner with the two polarizations of the high frequency radiator 31 to achieve signal inputs to the two polarizations of the high frequency radiator 31. In an embodiment, the second connection section 321 of the second feeder member 320 of each of the polarizations is a feeder matching portion, and the second feeder section 322 includes an open-circuit stub.

[0031] In an embodiment, as shown in FIG. 4, the second feeder member 320 further includes an encapsulation material 323, and the encapsulation material 323 is wrapped around an outside of the second connection section 321. When the second connection section 321 is passed through the second through hole 12, the encapsulation material 323 is located between the second connection section 321 and an inner wall of the second through hole 12 to prevent the second feeder member 320 from contacting the base 1, and then protect the second feeder member 320, and also prevent the second feeder member 320 from contacting the high frequency radiator 31, and then to ensure the coupling feeding effect and improve the intermodulation stability.

[0032] In an embodiment, the high frequency radiator 31 is an integrally formed structure, which has a simple structure and good consistency.

[0033] In an embodiment, as shown in FIG. 1 and FIG. 4, the second frequency band unit 3 further includes a guide piece 33. The guide piece 33 is provided on a side of the high frequency radiator 31 opposite to the base 1, and the guide piece 33 is spaced apart from the high frequency radiator 31.

[0034] In this embodiment, by providing the guide piece 33 and arranging the guide piece 33 to be located above the high frequency radiator 31, an antenna beam gathering effect is achieved, the width and gain of the horizontal plane beam and other indicators are improved, the radiation performance of the second frequency band unit 3 is also improved, and the reliability is further improved.

[0035] In an embodiment, as shown in FIG. 1, the low frequency radiator 21 is provided separately from the base 1. By adopting a separate structure between the low frequency radiator 21 and the base 1, the low frequency radiator 21 does not need to be electroplated, which reduces costs and makes production more environmentally friendly.

[0036] In an embodiment, the low frequency radiator 21 is coupled and connected to the base 1 to avoid contact with each other, which improves intermodulation stability.

[0037] In another embodiment, the low frequency radiator 21 and the base 1 are rigidly connected through a metal fastener. For example, the metal fastener is a metal screw. The rigid connection is more solid and stable, ensuring reliability.

[0038] In an embodiment, as shown in FIG. 1, FIG. 2 and FIG. 6, the bottom of the low frequency radiator 21 is provided with a first connection hole 212, and the base 1 is provided with a second connection hole 13 correspondingly. The metal fastener is passed through the first connection hole 212 and the second connection hole 13 to rigidly connect the low frequency radiator 21 and the base 1.

[0039] In an embodiment, the first connection hole 212 is a metal hole. The number of the first connection holes 212 and the second connection holes 13 may be multiple, such as three, and the three first connection holes 212 are not collinear to make the connection of the low frequency radiator 21 and the base 1 stronger, stable, and reliable.

[0040] In an embodiment, as shown in FIG. 1, the high frequency radiator 31 is provided separately from the base 1. By adopting a separate structure between the high frequency radiator 31 and the base 1, the high frequency radiator 31 does not need to be electroplated, which reduces costs and makes production more environmentally friendly.

[0041] In an embodiment, the high frequency radiator 31 is coupled and connected to the base 1 to avoid contact with each other, which improves intermodulation stability.

[0042] In another embodiment, the high frequency radiator 31 and the base 1 are rigidly connected through a metal fastener. For example, the metal fastener is a metal screw. The rigid connection is more solid and stable, ensuring reliability.

[0043] In an embodiment, as shown in FIGS. 1, 2, 6, 7 and 8, a bottom of the base 1 is provided with a first metal support 14 and a second metal support 15. The first through hole 11 runs through the first metal support 14, and the second through hole 12 runs through the second metal support 15. Both the first metal support 14 and the second metal support 15 are used to connect an outer conductor 501 of the external unit 500. The bottom of the low frequency radiator 21 is provided with a first metal via hole 213 and a second metal via hole 214. The first metal via hole 213 and the first through hole 11 are provided correspondingly, and the first connection section 221 of the first feeder member 220 is passed through the first metal via hole 213 and the first through hole 11 to electrically connect an inner conductor of the external unit 500. The second metal via hole 214 and the second through hole 12 are provided correspondingly, and the second connection section 321 of the second feeder member 320 is passed through the second metal via hole 214 and the second through hole 12 to electrically connect the inner conductor of the external unit 500.

[0044] In this embodiment, the base 1 is connected to the external unit 500 through the first metal support 14 and the second metal support 15 provided at the bottom of the base 1. The first metal support 14 is provided with the first through hole 11, and the second metal support 15 is provided with the second through hole 12. At the same time, the bottom of the low frequency radiator 21 is provided with the first metal via hole 213 and the second metal via hole 214 which respectively correspond to the first through hole 11 and the second through hole 12. As such, the first connection section 221 of the first feeder member 220 provided in the low frequency radiator 21 is able to be inserted into the first metal via hole 213 and the first through hole 11 to connect to the external unit 500. Similarly, the second connection section 321 of the second feeder member 320 is able to be inserted into the second metal via hole 214 and the second through hole 12 to connect to the external unit 500. Therefore, the base 1 may not only achieve the support and electrical connection for the low frequency radiator 21 and the high frequency radiator 31, but also achieve the connection between the first feeder member 220 and the external unit 500 and the connection between the second feeder member 320 and the external unit 500, which has a compact structure and is conducive to antenna miniaturization.

[0045] In an embodiment, the first metal support 14 of the base 1 is passed through the first metal via hole 213 of the low frequency radiator 21, the second metal support 15 of the base 1 is passed through the second metal via hole 214 of the low frequency radiator 21, and then the base 1 is connected to the low frequency radiator 21. At the same time, the first connection section 221 of the first feeder member 220 is inserted into the first metal via hole 213, the first through hole 11 in the first metal support 14, and then accesses an external signal through the external unit 500; and the second connection section 321 of the second feeder member 320 is inserted into the second metal via hole 214 and the second through hole 12 in the second metal support 15, and then accesses an external signal through the external unit 500.

[0046] In an embodiment, both the first metal support 14 and the second metal support 15 are metal pillars, and the bottoms of the metal pillars are provided with welding notches 16 to facilitate welding of the metal pillars and the outer conductor 501 of the external unit 500.

[0047] In an embodiment, the external unit 500 may be a radio frequency transmission member, such as a coaxial cable.

[0048] In an embodiment, both the low frequency radiator 21 and the high frequency radiator 31 include two polarizations, the first feeder group 22 includes two first feeder members 220, and the second feeder group 32 includes two second feeder members 320. The bottom of the low frequency radiator 21 is provided with a total of seven metal round holes, the metal round holes including two first metal via holes 213, two second metal via holes 214 and three first connection holes 212. The bottom of the base 1 is provided with four metal pillars, the pillars including two first metal supports 14 used to connect to the first frequency band unit 2, and two second metal supports 15 used to connect to the second frequency band unit 3.

[0049] In an embodiment, the first feeder member 220 is one of a sheet metal member, a die-casting member, or a printed circuit member; and/or the second feeder member 320 is one of a sheet metal member, a die-casting member, or a printed circuit member. In this embodiment, the first feeder member 220 and the second feeder member 320 are made of sheet metal members, die-casting members or printed circuit members, which have a simple structure and are easy to form, and have low costs.

[0050] In an embodiment, the first feeder member 220 is an integrated molding member; and/or the second feeder member 320 is an integrated molding member. The first feeder member 220 and the second feeder member 320 adopt an integrated molding structure, which have a simple structure, a good consistency, a longer service life, and lower costs.

[0051] In an embodiment, FIG. 9 shows a standing-wave ratio curve of the first frequency band unit of the common aperture radiation unit according to the embodiments of the present application. As shown in FIG. 9, the horizontal axis represents frequency with a unit of MHz, and the vertical axis represents standing-wave ratio. The solid line in FIG. 9 represents a standing-wave ratio - frequency curve of +45° polarization of a first frequency band, and the dotted line represents a standing-wave ratio -frequency curve of -45° polarization of the first frequency band. It can be seen that the standing-wave ratio of the low frequency portion of the common aperture radiation unit according to the present application is less than 1.4, and the impedance matching degree is high, which may effectively reduce the energy loss in low frequency, be conducive to reducing the input power of the antenna, and have high reliability and low costs.

[0052] FIG. 10 sows a standing-wave ratio curve of the second frequency band unit of the common aperture radiation unit according to the embodiments of the present application. As shown in FIG. 10, the horizontal axis represents frequency with a unit of MHz, and the vertical axis represents standing-wave ratio. The solid line in FIG. 10 represents a standing-wave ratio - frequency curve of +45° polarization of a second frequency band, and the dotted line represents a standing-wave ratio -frequency curve of -45° polarization of the second frequency band. It can be seen that the standing- wave ratio of the high frequency portion of the common aperture radiation unit according to the present application is less than 1.25, and the impedance matching degree is high, which may effectively reduce the energy loss in high frequency, be conducive to reducing the input power of the antenna, and have high reliability and low costs.

[0053] The common aperture radiation unit provided by the present application has a standing-wave ratio in both low frequency and high frequency within a normal range, has good impedance matching performance to ensure that the indicators of each frequency band do not deteriorate, as well as good intermodulation stability, high reliability, and low costs.

[0054] The present application further provides an antenna including the common aperture radiation unit provided by any one of the above embodiments.

[0055] In an embodiment, the antenna includes a plurality of common aperture radiation units, and the plurality of common aperture radiation units are a combination of units with the same frequency or a combination of at least partial units with different frequencies.

[0056] In this embodiment, the common aperture radiation units may be properly laid out to obtain a multi-band integrated base station antenna, which improves intermodulation stability and has lower costs, and solves the problems related to reliability and costs of multi-frequency multiport array antennas in the related art.

[0057] In an embodiment, the antenna may adopt a combination of units with the same frequency, that is, the working frequency bands of the plurality of common aperture radiation units are the same, and then the antenna may simultaneously receive/transmit signals from a plurality of devices in the same frequency band.

[0058] In an embodiment, the antenna may adopt a combination of at least partial units with different frequencies, that is, at least one of the plurality of common aperture radiation units has a different working frequency band from other units, and then antenna may simultaneously receive/transmit signals from a plurality of devices in more frequency bands.

[0059] The antenna according to the embodiments of the present application is more convenient and flexible to use and meets various usage requirements.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the solutions of the present application, but not to limit it. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they may still modify the solutions described in the foregoing embodiments, or equivalently substitute some features in the solutions described in the foregoing embodiments. However, these modifications or substitutions do not cause the essence of the corresponding solutions to deviate from the scope of the solutions in the embodiments of the present application.

Claims

1. A common aperture radiation unit, comprising:

a base, provided with a first through hole and a second through hole;

a first frequency band unit, comprising a low frequency radiator and a first feeder group, wherein the low frequency radiator is supported and provided on the base, the low frequency radiator comprises at least one polarization composed of a symmetrical dipole binary array, the first feeder group comprises at least one first feeder member, the first feeder member is provided corresponding to a low frequency binary array of a polarization of the low frequency radiator, the first feeder member comprises a first connection section and a first feeder section, the first connection section is passed through the first through hole to access an external signal, and the first feeder section is coupled and connected to a corresponding low frequency binary array to coupling feed an input signal of the low frequency radiator; and

a second frequency band unit, embedded in the first frequency band unit, wherein the second frequency band unit comprises a high frequency radiator and a second feeder group, the high frequency radiator is supported and provided on the base, the high frequency radiator comprises at least one polarization composed of a symmetrical dipole binary array, the second feeder group comprises at least one second feeder member, and the second feeder member is provided corresponding to a high frequency binary array of a polarization of the high frequency radiator, the second feeder member comprises a second connection section and a second feeder section, the second connection section is passed through the second through hole to access an external signal, and the second feeder section is coupled and connected to a corresponding high frequency binary array to coupling feed an input signal of the high frequency radiator.

2. The common aperture radiation unit of claim 1, wherein the low frequency radiator comprises two polarizations arranged in an orthogonal manner, the first feeder group comprises two first feeder members, and the two first feeder members are provided in a one-to-one correspondence manner with the two polarizations of the low frequency radiator.

3. The common aperture radiation unit of claim 1, wherein the low frequency radiator is provided separately from the base; and
the low frequency radiator is coupled and connected to the base, or the low frequency radiator is rigidly connected to the base through a metal fastener.

4. The common aperture radiation unit of claim 1, wherein the high frequency radiator is provided separately from the base; and
the high frequency radiator is coupled and connected to the base, or the high frequency radiator is rigidly connected to the base through a metal fastener.

5. The common aperture radiation unit of claim 1, wherein a bottom of the base is provided with a first metal support and a second metal support, the first through hole runs through the first metal support, the second through hole runs through the second metal support, and both the first metal support and the second metal support are used to connect an outer conductor of an external unit; and
a bottom of the low frequency radiator is provided with a first metal via hole and a second metal via hole, wherein the first metal via hole and the first through hole are provided correspondingly, the first connection section is passed through the first metal via hole and the first through hole to electrically connect an inner conductor of the external unit; and the second metal via hole and the second through hole are provided correspondingly, and the second connection section is passed through the second metal via hole and the second through hole to electrically connect the inner conductor of the external unit.

6. The common aperture radiation unit of any one of claims 1 to 5, wherein the first feeder member is one of a sheet metal member, a die-casting member, or a printed circuit member; and/or, the second feeder member is one of a sheet metal member, a die-casting member, or a printed circuit member.

7. The common aperture radiation unit of claim 6, wherein the first feeder member is an integrated molding member; and/or, the second feeder member is an integrated molding member.

8. The common aperture radiation unit of any one of claims 1 to 5, further comprising a guide piece, wherein the guide piece is provided on a side of the high frequency radiator opposite to the base, and the guide piece is spaced apart from the high frequency radiator.

9. An antenna, comprising the common aperture radiation unit of any one of claims 1 to 8.

10. The antenna of claim 9, comprising a plurality of the common aperture radiation units, wherein the plurality of the common aperture radiation units are a combination of units with the same frequency or a combination of at least partial units with different frequencies.

Drawing