Planar millimeter wave two axis monopulse transceiver with switchable polarization
First Claim
1. A planar millimeter wave transceiver comprising:
- a substrate;
a plurality of antenna elements disposed on the substrate in right and left circularly polarized configuration;
feed means interconnecting adjacent antenna elements and having a feed point therebetween;
first switch means interconnected with the feed points of the feed means coupled to adjacent pairs of antenna elements alternately operable between first and second conditions for establishing azimuth and elevation configurations of the antenna elements;
a sum channel and a difference channel; and
second switch means interconnected with the sum and difference channels, with the first switch means alternately operable between first and second conditions for establishing transmit and receive modes for the antenna elements, said feed means, said sum and difference channels and said first and second switch means being interconnected without crossovers on the substrate.
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Accused Products
Abstract
Planar millimeter wave transceiver includes a plurality of patch antenna elements disposed on a substrate in right and left hand circular polarization. Microstrip feeds having an intermediate feed point, interconnect adjacent elements. First switches interconnect with the feed points of adjacent feeds and are alternately operable between first and second states for establishing azimuth and elevation. Second switches interconnected with the first switches are alternately operable between first and second states for establishing transmit and receive modes for the antenna and with phase compensation. The microstrip feeds, and the first and second switches are interconnected on the substrate without crossovers. Transmitter and receiver elements may also be incorporated onto the substrate to form an integrated transceiver.
16 Citations
27 Claims
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1. A planar millimeter wave transceiver comprising:
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a substrate; a plurality of antenna elements disposed on the substrate in right and left circularly polarized configuration; feed means interconnecting adjacent antenna elements and having a feed point therebetween; first switch means interconnected with the feed points of the feed means coupled to adjacent pairs of antenna elements alternately operable between first and second conditions for establishing azimuth and elevation configurations of the antenna elements; a sum channel and a difference channel; and second switch means interconnected with the sum and difference channels, with the first switch means alternately operable between first and second conditions for establishing transmit and receive modes for the antenna elements, said feed means, said sum and difference channels and said first and second switch means being interconnected without crossovers on the substrate.
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2. A planar millimeter wave transceiver comprising:
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a substrate; antenna means disposed on the substrate; feed means interconnecting the antenna means; first switch means interconnecting feed means in pairs, said first switch means alternately operable between first and second conditions for establishing azimuth and elevation configurations of the antenna means; second switch means interconnected with the first switch means alternately operable between first and second conditions for establishing transmit and receive modes for the antenna means, said feed means, and said first and second switch means being interconnected without crossovers on the substrate; and a sum channel and a difference channel interconnecting the first and second switch means and the antenna means. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification