A 4 Element Phased Array Transmitter with Efficiency Enhancement Using Beamforming for High-Bandwidth WLAN Applications

Avraham Sayag, Emanuel Cohen

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

Abstract

This paper presents a 4-element phased array transmitter with efficiency enhancement using beamforming for high bandwidths WLAN application. The efficiency enhancement is achieved by over-the-air combining technique and a sequential operation of the different chains. The signal peaks and the remaining data are transmitted through different RF chains, each optimized for a specific power, and recombined over the air to form the desired signal. A 5GHz PA with fast 2nsec on/off switching time was designed in 0.18um CMOS process to demonstrate the efficiency boost technique. For the 4-element array configuration, efficiency enhancement of x2.3 was demonstrated for 80MHz MSC9 802.11ac signals with 9dB peak-to-average-ratio and EVM of -32dB.

Original languageEnglish
Title of host publicationProceedings of the 2018 IEEE/MTT-S International Microwave Symposium, IMS 2018
Pages1199-1202
Number of pages4
DOIs
StatePublished - 17 Aug 2018
Event2018 IEEE/MTT-S International Microwave Symposium, IMS 2018 - Philadelphia, United States
Duration: 10 Jun 201815 Jun 2018

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2018-June

Conference

Conference2018 IEEE/MTT-S International Microwave Symposium, IMS 2018
Country/TerritoryUnited States
CityPhiladelphia
Period10/06/1815/06/18

Keywords

  • 5G mobile communication
  • Doherty
  • beamforming
  • efficiency enhancement
  • power amplifiers

All Science Journal Classification (ASJC) codes

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'A 4 Element Phased Array Transmitter with Efficiency Enhancement Using Beamforming for High-Bandwidth WLAN Applications'. Together they form a unique fingerprint.

Cite this