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Tunable filters, cancellers, and duplexers based on passive mixers
Tunable filters, cancellers, and duplexers based on passive mixers
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机译:基于无源混频器的可调滤波器,消除器和双工器
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摘要
Tunable filters, cancellers, and duplexers based on passive mixers. A tunable delay cell includes passive mixers electrically coupled together for receiving an input signal and outputting a delayed signal, each passive mixer comprising a plurality of mixer switches. The tunable delay includes a control circuit for providing, to each passive mixer, a respective plurality of local oscillator (LO) signals, one to each mixer switch of each passive mixer. The control circuit is configured to vary the LO signals to cause a target frequency band of the input signal to be delayed by a target delay time in propagating through the passive mixers.
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