Global Patent Index - EP 0343887 A1

EP 0343887 A1 19891129 - Waveguide apparatus.

Title (en)

Waveguide apparatus.

Title (de)

Wellenleitervorrichtung.

Title (fr)

Dispositif à guides d'ondes.

Publication

EP 0343887 A1 19891129 (EN)

Application

EP 89305128 A 19890519

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

H01P 1/06; H01P 1/163

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)

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