High-Power Tunable FDD Front-End Employing a Balanced CMOS N-Path Receiver and Evanescent-Mode Cavity Filters

Nimrod Ginzberg, Thomas R. Jones, Avi Lax, Erez Zolkov, Michael D. Sinanis, Dimitrios Peroulis, Emanuel Cohen

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

Abstract

A single-antenna, frequency-tunable FDD front-end supporting simultaneous transmit (TX) and receive (RX) operation with high power handling capabilities and low TX and RX losses is presented. The system comprises a balanced CMOS N-path receiver in series with tunable evanescent-mode filters, and leverages frequency-selective reflectivity and matching for quadrature signal construction and self-interference cancellation at corresponding ports of interest. A measured 65 nm CMOS receiver prototype with manufactured cavity filters demonstrated 38 dBm blocker tolerance (B1dB) around 1 GHz at 100 MHz TX-RX spacing with no RX EVM degradation, < 0.4 dB TX insertion loss, and 3.5-4.5 dB RX NF over 0.9-1.8 GHz tunable frequency range.

Original languageEnglish
Title of host publication2023 IEEE/MTT-S International Microwave Symposium, IMS 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages944-947
Number of pages4
ISBN (Electronic)9798350347647
DOIs
StatePublished - 2023
Event2023 IEEE/MTT-S International Microwave Symposium, IMS 2023 - San Diego, United States
Duration: 11 Jun 202316 Jun 2023

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2023-June

Conference

Conference2023 IEEE/MTT-S International Microwave Symposium, IMS 2023
Country/TerritoryUnited States
CitySan Diego
Period11/06/2316/06/23

Keywords

  • Evanescent-mode cavity filter
  • N-path mixer
  • frequency-division duplex (FDD)
  • interference cancellation

All Science Journal Classification (ASJC) codes

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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