Quasi-optical transceiver having an antenna with time varying voltage
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United States of America Patent
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Feb 19, 2002
Grant Date -
N/A
app pub date -
May 4, 1998
filing date -
May 4, 1998
priority date (Note) -
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Abstract
A transceiver for transmitting and receiving high frequency radiation is described. The transceiver includes a first light source that generates radiation at a first frequency and a second light source that generates radiation at a second frequency. The first and the second light source have a difference frequency that is approximately equal to the difference between the first and the second frequencies. The transceiver also includes a transmitter that comprises a first photomixer that is optically coupled to the first and the second light source. A first antenna that radiates a signal at the difference frequency is electrically coupled to the first photomixer. The transceiver also includes a receiver that comprises a second antenna positioned to receive the signal radiated by the first antenna. The second antenna generates a time varying voltage in response to the signal. A second photomixer is electrically coupled to the second antenna and optically coupled to the first and the second light source. The second photomixer generates a current signal in response to the time varying voltage generated by the second antenna.
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