TY - GEN
T1 - A tunable 0.86-1.03 GHz FDD wireless communication system with an evanescent-mode diplexer and a self-interference-cancelling receiver
AU - Khater, Mohammad Abu
AU - Zhou, Jin
AU - Wu, Yu Chen
AU - Krishnaswamy, Harish
AU - Peroulis, Dimitrios
N1 - Publisher Copyright:
© 2017 IEEE.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2017/10/4
Y1 - 2017/10/4
N2 - A tunable multiband FDD system is presented in this paper. For the first time, a tunable evanescent-mode cavity diplexer and a 65 nm CMOS self-interference-cancelling receiver are combined to provide high Tx-to-Rx isolation required in a multiband FDD system. Self-interference-cancellation reduces the required filter order for a given Tx-to-Rx isolation, reducing the loss associated with the tunable filter. The system has a measured tuning range of 0.86-1.03 GHz with 45 dB Tx-to-Rx isolation bandwidths of 4 MHz, at low band, and 2 MHz at high band. Simultaneous transmission and reception using 16-QAM signals are also demonstrated, showing the feasibility of using the presented system in a realistic tunable FDD system.
AB - A tunable multiband FDD system is presented in this paper. For the first time, a tunable evanescent-mode cavity diplexer and a 65 nm CMOS self-interference-cancelling receiver are combined to provide high Tx-to-Rx isolation required in a multiband FDD system. Self-interference-cancellation reduces the required filter order for a given Tx-to-Rx isolation, reducing the loss associated with the tunable filter. The system has a measured tuning range of 0.86-1.03 GHz with 45 dB Tx-to-Rx isolation bandwidths of 4 MHz, at low band, and 2 MHz at high band. Simultaneous transmission and reception using 16-QAM signals are also demonstrated, showing the feasibility of using the presented system in a realistic tunable FDD system.
KW - Cavity filters
KW - Diplexer
KW - Receiver
KW - Self interference
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U2 - 10.1109/MWSYM.2017.8058451
DO - 10.1109/MWSYM.2017.8058451
M3 - Conference contribution
AN - SCOPUS:85032485524
T3 - IEEE MTT-S International Microwave Symposium Digest
SP - 376
EP - 379
BT - 2017 IEEE MTT-S International Microwave Symposium, IMS 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 IEEE MTT-S International Microwave Symposium, IMS 2017
Y2 - 4 June 2017 through 9 June 2017
ER -