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Right and left hand circularly polarized RFID backscatter antenna
Right and left hand circularly polarized RFID backscatter antenna
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机译:左右手圆极化RFID背向散射天线
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摘要
An antenna, system and method for transmitting and receiving RF signals over a first frequency band using a single antenna or two closely spaced antennas. In one embodiment, the antenna is configured to receive first signals in the first frequency band having a first rotational polarization and to transmit second signals in the first frequency band and having a second rotational polarization. The second signals may be transmitted in response to the first signals. The first signals may be preferentially routed to a receiver using signal conditioning circuitry that also routes the second signals from a transmitter to the antenna but not to the receiver.
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