TY - GEN
T1 - Active Cancellation Limitation Analysis for Full Duplex Systems with a Single Antenna
AU - Vilner, Pavel
AU - Cohen, Emanuel
N1 - Publisher Copyright: © 2019 IEEE.
PY - 2019/11
Y1 - 2019/11
N2 - In this paper the performance limitations of the multi-PA / multi-LNA / single-antenna duplex RF transceiver architecture interconnected by a passive reciprocal electrical network are explored. It is shown that, if the antenna's impedance is allowed to change, as is the case in real environment, either the influence of the PAs' signal output on the SNR or the influence of the PAs' thermal noise on the SNR can be canceled, but not both of them simultaneously. Additionally, it is demonstrated that, if the antenna's impedance is fixed, then it is possible to design a system in which both the SNR impact of the PAs' signals and the SNR impact of the PAs' thermal noise are canceled. The constraint on the amount of the LNAs and the PAs required to achieve this cancellation is demonstrated as well.
AB - In this paper the performance limitations of the multi-PA / multi-LNA / single-antenna duplex RF transceiver architecture interconnected by a passive reciprocal electrical network are explored. It is shown that, if the antenna's impedance is allowed to change, as is the case in real environment, either the influence of the PAs' signal output on the SNR or the influence of the PAs' thermal noise on the SNR can be canceled, but not both of them simultaneously. Additionally, it is demonstrated that, if the antenna's impedance is fixed, then it is possible to design a system in which both the SNR impact of the PAs' signals and the SNR impact of the PAs' thermal noise are canceled. The constraint on the amount of the LNAs and the PAs required to achieve this cancellation is demonstrated as well.
KW - Full-Duplex
KW - Interference cancellation
KW - Passive circuits
KW - S-parameters
KW - Simultaneous Transmit-Receive
UR - http://www.scopus.com/inward/record.url?scp=85078946052&partnerID=8YFLogxK
U2 - 10.1109/COMCAS44984.2019.8958012
DO - 10.1109/COMCAS44984.2019.8958012
M3 - منشور من مؤتمر
T3 - 2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2019
BT - 2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2019
T2 - 2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2019
Y2 - 4 November 2019 through 6 November 2019
ER -