EP 0343887 A1 19891129 - Waveguide apparatus.
Title (en)
Waveguide apparatus.
Title (de)
Wellenleitervorrichtung.
Title (fr)
Dispositif à guides d'ondes.
Publication
Application
Priority
GB 8812091 A 19880521
Abstract (en)
Waveguide apparatus for transforming signals between the TE10 mode and a circular mode, shown in schematic exploded form, includes a Magic-T 10 in which the H-plane port 11 is terminated. A signal in the TE10 mode is applied to its E-plane port 8, resulting in signals in the TE10 mode being produced at its outputs 12 and 13, the field being in opposite senses. The outputs 12 and 13 are arranged adjacent one another so that the effective output of the Magic-T 10 is a signal in the TE20 mode. This is applied to a short taper 14 having an aperture therethrough, this being of rectangular section in the face adjacent the Magic-T output ports 12 and 13 and of cruciform section at the other face. The taper 14 is followed by a spacer 15 and iris 16 having a cruciform aperture therethrough. The application of the signal in the TE20 mode at the Magic-T outputs 12 and 13 results in an output signal in the TE01 mode being launched in the circular waveguide following the iris 16. The apparatus may also be used to transform a TE01 applied to the iris 16 into an output signal at the E-plane port 8 in the TE10 mode.
IPC 1-7
IPC 8 full level
H01P 1/06 (2006.01); H01P 1/163 (2006.01)
CPC (source: EP)
H01P 1/067 (2013.01); H01P 1/163 (2013.01)
Citation (search report)
- [X] US 2656513 A 19531020 - KING ARCHIE P
- [A] DE 1933950 A1 19700115 - THOMSON CSF
- [Y] US 2825031 A 19580225 - PARISI FRANK E
- [Y] US 3633130 A 19720104 - AJIOKA JAMES S
- [A] EP 0243888 A1 19871104 - ALCATEL ESPACE [FR]
- [A] EP 0210543 B1 19940302 - TEXAS INSTRUMENTS INC [US]
- [X] FR 1239182 A 19600819 - THOMSON HOUSTON COMP FRANCAISE
- [A] US 2455158 A 19481130 - BRADLEY WILLIAM E
- [A] US 3100881 A 19630813 - EDSON WILLIAM A
- [A] US 3230484 A 19660118 - NATHAN LIPETZ, et al
Designated contracting state (EPC)
DE ES FR IT SE
DOCDB simple family (publication)
EP 0343887 A1 19891129; GB 2218855 A 19891122; GB 2218855 B 19920527; GB 8812091 D0 19880622; GB 8911532 D0 19890705
DOCDB simple family (application)
EP 89305128 A 19890519; GB 8812091 A 19880521; GB 8911532 A 19890519