Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2006-12-19
2006-12-19
Ho, Tan (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C343S786000, C343S754000, C333S02100R
Reexamination Certificate
active
07151494
ABSTRACT:
An oscillator. In the illustrative embodiment, the oscillator includes an ortho-mode feed; a reflective amplifier array adapted to be illuminated by the feed with an input wavefront with a first polarization and to return thereto an amplified wavefront with a second polarization orthogonal to the first wavefront; and a partially reflective plate disposed between the feed and the amplifier. The inventive oscillator provides a Fabry-Perot cavity between the feed and the plate. In the illustrative embodiment, the plate is a polarized plate. The plate may have surfaces with dissimilar polarizations and/or curvatures. The amplifier may be phase locked by an ortho-mode converter or other arrangement.
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Brown Kenneth W.
Gallivan James R.
Finn Thomas J.
Gunther John E.
Ho Tan
Raytheon Company
Vick Karl A.
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