Circularly polarized wave patch antenna with wide shortcircuit p

Details Circularly polarized wave patch antenna with wide shortcircuit p Circularly polarized wave patch antenna with wide shortcircuit p

1998-06-17

2000-09-26

Wimer, Michael C.

Communications: radio wave antennas

Antennas

Microstrip

343769, H01Q 138

Patent

active

061248290

ABSTRACT:
A patch and a ground conductor are shortcircuited with two shortcircuit portions that are composed of conductive plates and that pass through a dielectric substrate. The shortcircuit portions are connected to the inner periphery of the patch and have large widths therealong. A first shortcircuit portion is disposed on a first line that connects a microstrip feeder line and the center point of the patch. A second shortcircuit portion is disposed on a second line that passes through the center point. The inner angle of the first line and the second line is in the range from 80 degrees to 110 degrees.

REFERENCES:
patent: 4208660 (1980-06-01), McOwen
patent: 5410749 (1995-04-01), Siwiak et al.
N. Goto et al., "Ring Patch Antennas for Dual Frequency Use," IEEE AP-S digest, p. 944-947 (1987).
Yasunaga et al., "Phased Array Antennas for Aeronautical Satellite Communications," I CAP'87, p. 47-50 (1987).

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