Floyd Brian Allan,Wilson, III Charley Theodore,Bonner-Stewart Jeffrey Franklin
申请号：
US201715706327
公开号：
US2018013459(A1)
申请日:
2017.09.15
申请国别(地区):
美国
年份:
2018
代理人:
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.
