Beam scan using the quasi-optical antenna mixer array
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概要
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The quasi-optical antenna mixer system transformsan RF signal into an intermediate frequency signal just after itspatially receives the RF signal and the local oscillator’s (LO)signal. In this paper, we present a novel beam-scanning systemusing the quasi-optical antenna mixer array and describe its principleof operation and the experimental results in the microwaveband. The arrival direction of RF signals can be controlled byadjusting the LO incident angle and/or the LO frequency withoutimplementing RF circuits such as phase shifters. Therefore, thenovel beam-scanning system has no loss due to RF circuits andcan be easily designed because of its simple composition.
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