Analysis of Vivaldi array antenna for phased array feeds application

Lei Liu, Keith Grainge, Alessandro Navarrini

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

Abstract

This paper focuses on the analysis of S parameters and beam patterns of an array of Vivaldi antennas used in a cryogenically cooled phased array feeds for radio astronomical application. The low-noise cryogenic front-end operates across the 4-8 GHz band and can simultaneously forms four independent beams. Signals from the dual-polarized Vivaldi antenna array are combined by an analogue beam former located inside the cryostat. The vacuum window consists of a dome-shaped structure made of Plexiglas. We report on results of investigation of mutual coupling between the antenna elements and how the dome affects S parameter and beam pattern.

Original languageEnglish
Title of host publication2017 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization for RF, Microwave, and Terahertz Applications, NEMO 2017
PublisherIEEE
Pages233-235
Number of pages3
ISBN (Electronic)9781509048373
DOIs
Publication statusPublished - 29 Jun 2017
Event2017 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization for RF, Microwave, and Terahertz Applications, NEMO 2017 - Seville, Spain
Duration: 17 May 201719 May 2017

Conference

Conference2017 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization for RF, Microwave, and Terahertz Applications, NEMO 2017
Country/TerritorySpain
CitySeville
Period17/05/1719/05/17

Keywords

  • beam pattern
  • cryogenic cooled technology
  • phased array feeds
  • S parameter
  • Vivaldi array antenna

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