Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2006-04-25
2006-04-25
Vo, Tuyet (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C343S754000
Reexamination Certificate
active
07034751
ABSTRACT:
An amplifier including a monolithic semiconductor substrate and an array disposed on said substrate for coherently receiving and retransmitting electromagnetic energy. The array is implemented with a plurality of cells. Each of the cells includes a dual polarization antenna structure for receiving electromagnetic energy and an amplifier connected thereto. The amplifier may include an ortho-mode feed and 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. First and second shaped mirrors may be incorporated for illuminating the array with a planar wavefront and converting the reflected planar wavefront to a spherical wavefront.
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Brown Kenneth W.
Gallivan James R.
Alemu Ephrem
Alkov Leonard A.
Finn Thomas J.
Raytheon Company
Vick Karl A.
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