Reflect antenna

Communications: radio wave antennas – Antennas – Microstrip

Reexamination Certificate

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C343S845000

Reexamination Certificate

active

07098854

ABSTRACT:
A reflect antenna element having a receive antenna section and a transmit antenna section. Each section has a cavity, a conductive element in registration with the cavity, and a ground plane conductor having a slot. A strip conductor has portions thereof disposed over the slots and the ground planes conductor. The strip conductor and underlying ground plane conductor form a microstrip transmission line for coupling energy received by the receive antenna section to the transmit antenna section. The transmit antenna section and receive antenna section are configured to operate with orthogonal polarizations. An amplifier is disposed in circuit with the transmission line.

REFERENCES:
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David M. Pozar, Design of Millimeter Wave Microstrip Reflectarrays, Feb. 1997, pp. 287-296, vol. 45, No. 2.
S.D. Targonski, Analysis and Design of a Microstrip Reflectarray Using Patches of Variable Size, pp. 1820-1823, University of Massachusetts, Amherst, Massachusetts 01003, no date, month.
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Marek E. Bialkowski, Dual Linearly Polarized Reflect Array Using Aperture Coupled Microstrip Patches. 2001, pp. 486-489, HRL Laboratories, Malibu, CA 90265.
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PCT/US2005/022655 International Search Report dated Jan. 25, 2006.

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