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EP 0174068 B1 19910102 - IMPROVEMENTS IN OR RELATING TO MICROSTRIP ANTENNAS

Title (en)

IMPROVEMENTS IN OR RELATING TO MICROSTRIP ANTENNAS

Publication

EP 0174068 B1 19910102 (EN)

Application

EP 85304623 A 19850628

Priority

GB 8417502 A 19840709

Abstract (en)

[origin: EP0174068A1] The bandwidth of a microstrip circular patch antenna (1) of approximately half-wavelength diameter at the resonant frequency is increased by surrounding it with an annular conducting sheet (6) of approximately quarter-wavelength width separated from the patch (1) by a gap (5) and having its outer edge connected to the ground-plane (3). The resulting structure is particularly suitable for feeding a reflector antenna.

IPC 1-7

H01Q 9/04

IPC 8 full level

H01Q 9/04 (2006.01); H01Q 13/18 (2006.01); H01Q 19/00 (2006.01)

CPC (source: EP)

H01Q 9/0464 (2013.01); H01Q 13/18 (2013.01); H01Q 19/005 (2013.01)

Designated contracting state (EPC)

BE DE FR GB IT NL

DOCDB simple family (publication)

EP 0174068 A1 19860312; EP 0174068 B1 19910102; DE 3581020 D1 19910207; GB 8417502 D0 19840815

DOCDB simple family (application)

EP 85304623 A 19850628; DE 3581020 T 19850628; GB 8417502 A 19840709