EP 4231457 A1 20230823 - DUAL-FREQUENCY FEED SOURCE AND DUAL-FREQUENCY ANTENNA
Title (en)
DUAL-FREQUENCY FEED SOURCE AND DUAL-FREQUENCY ANTENNA
Title (de)
DOPPELFREQUENZSPEISEQUELLE UND DOPPELFREQUENZANTENNE
Title (fr)
SOURCE D'ALIMENTATION À DOUBLE FRÉQUENCE ET ANTENNE À DOUBLE FRÉQUENCE
Publication
Application
Priority
CN 2020130611 W 20201120
Abstract (en)
This application provides a dual-band feed and a dual-band antenna, to resolve problems of an existing dual-band antenna: disordered distribution of an electromagnetic field, a high side lobe, and deterioration of a radiation pattern of the antenna, so that performance of the radiation pattern of the antenna is improved. The dual-band antenna includes a primary reflection surface, a secondary reflection surface, a dual-band feed, and a dielectric support. The primary reflection surface is disposed opposite to the secondary reflection surface. The dual-band feed includes a low-band feed and a high-band feed. The dielectric support is disposed between the primary reflection surface and the secondary reflection surface. The dielectric support includes an annular first support portion with an opening on one side. The opening of the first support portion is disposed toward the secondary reflection surface. A thickness of the first support portion is related to a relative permittivity of the first support portion, an operating frequency of the low-band feed, and an operating frequency of the high-band feed. The secondary reflection surface is fixedly connected to an opening position of the first support portion, and is enclosed with the first support portion to form a cavity. A first end of the dual-band feed passes through the first support portion and is disposed in the cavity, and a second end of the dual-band feed is connected to a center of the primary reflection surface.
IPC 8 full level
H01Q 19/10 (2006.01); H01Q 13/20 (2006.01)
CPC (source: EP)
H01Q 1/12 (2013.01); H01Q 5/47 (2015.01); H01Q 13/065 (2013.01); H01Q 13/24 (2013.01); H01Q 19/193 (2013.01); H01Q 25/04 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4231457 A1 20230823; EP 4231457 A4 20231213; WO 2022104741 A1 20220527
DOCDB simple family (application)
EP 20962032 A 20201120; CN 2020130611 W 20201120