Active Cancellation Limitation Analysis for Full Duplex Systems with a Single Antenna

Pavel Vilner, Emanuel Cohen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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.

Original languageEnglish
Title of host publication2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2019
ISBN (Electronic)9781538695494
DOIs
StatePublished - Nov 2019
Event2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2019 - Tel-Aviv, Israel
Duration: 4 Nov 20196 Nov 2019

Publication series

Name2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2019

Conference

Conference2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2019
Country/TerritoryIsrael
CityTel-Aviv
Period4/11/196/11/19

Keywords

  • Full-Duplex
  • Interference cancellation
  • Passive circuits
  • S-parameters
  • Simultaneous Transmit-Receive

All Science Journal Classification (ASJC) codes

  • Information Systems and Management
  • Electrical and Electronic Engineering
  • Instrumentation
  • Artificial Intelligence
  • Computer Networks and Communications

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