1、ISSCC 2026SESSION 33 Time-Varying Circuit Techniques from RF to mm-Wave33.1:A 22-to-25GHz CMOS Non-magnetic Balanced Circulator Achieving at Least 20dB TX-RX Isolation for an Antenna VSWR of 2 2026 IEEE International Solid-State Circuits Conference1 of 46 A 22-to-25 GHz CMOS Non-magnetic Balanced Ci
2、rculator Achieving at Least 20 dB TX-RX Isolation for an Antenna VSWR of 2Heqi Deng,Ehsan Shokrolahzade,Niels Fakkel,Marco Spirito,Fabio Sebastiano,Masoud BabaieDelft University of Technology,The Netherlands33.1:A 22-to-25GHz CMOS Non-magnetic Balanced Circulator Achieving at Least 20dB TX-RX Isolat
3、ion for an Antenna VSWR of 2 2026 IEEE International Solid-State Circuits Conference2 of 46 Duplexers in Wireless CommunicationFull DuplexDuplexer challenges:High TX-RX isolationLow insertion lossLarge PTX power handling capabilityWide BandwidthLow power consumptionAntenna VSWR Resilience:Duplexers
4、must maintain performance under antenna impedance mismatch.33.1:A 22-to-25GHz CMOS Non-magnetic Balanced Circulator Achieving at Least 20dB TX-RX Isolation for an Antenna VSWR of 2 2026 IEEE International Solid-State Circuits Conference3 of 46 Electrical-balance Duplexer(EBD)Can use balance network
5、to improve Isolation;Large PTX power handling capability;3dB intrinsic insertion loss.B.van Liempd et al.,ISSCC 2015M.Elkholy et al.,TMTT 201633.1:A 22-to-25GHz CMOS Non-magnetic Balanced Circulator Achieving at Least 20dB TX-RX Isolation for an Antenna VSWR of 2 2026 IEEE International Solid-State
6、Circuits Conference4 of 46 Non-magnetic Circulator0 dB intrinsic insertion loss.J.Zhou et al.,ISSCC 2016TX-ANT TransmissionTX-RX LeakageN.Reiskarimian et al.,ISSCC 201733.1:A 22-to-25GHz CMOS Non-magnetic Balanced Circulator Achieving at Least 20dB TX-RX Isolation for an Antenna VSWR of 2 2026 IEEE