Dual frequency microstrip patch antenna with capacitively couple

Details Dual frequency microstrip patch antenna with capacitively couple Dual frequency microstrip patch antenna with capacitively couple

1988-10-24

1991-03-26

Wimer, Michael C.

Communications: radio wave antennas

Antennas

Microstrip

H01Q 138

Patent

active

050033182

ABSTRACT:
A dual frequency stacked microstrip patch antenna is comprised of a pair of circular radiating patches separated by a layer of dielectric, the two upper patches being further separated by another layer of dielectric from a pair of separated ground planes. A modal shorting pin extends between the patches and ground planes, and the patches are fed through a pair of feed pins by a backward wave feed network. A pair of modified shape feed through holes in the lower patch through which the feed pins pass result in an extended bandwidth.

REFERENCES:
patent: 4089003 (1978-05-01), Conroy
patent: 4329689 (1982-05-01), Yee
patent: 4827271 (1989-05-01), Berneking et al.

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