94 GHz phase-shift-keying modulator
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This paper describes a kind of low insertion loss phase-shift-keying modulators used in 94GHz digital communications systems. A BPSK modulator with a insertion loss lower than 3.8dB has been achieved by connecting a circulator and a fin-line PIN diode phase shifter in series. The bandwidth is 2.5GHz given a phase error of ±50. The circuits and experimental results are also given out.
KeywordsPhase Shifter Communication System Digital Communication Phase Error Insertion Loss
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