Electronically Scanned Rotman Lens Antenna with Liquid Crystal Phase Shifters

Steven Christie, Robert Cahill, Neil Mitchell, Yvonne Munro, Atsu Manabe

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


The performance of a Rotman lens, which forms fixed beams at 0°, ±15° and ±30°, is augmented using liquid crystal phase shifters to simultaneously steer each beam by up to ±7.5°. Measured results are used to demonstrate that the true time delay property of the antenna and voltage controlled phase shifters can be exploited to provide continuously scanned beams with full coverage over an angular range of ±37.5°, and with operation over the band 6-10 GHz.
Original languageEnglish
Pages (from-to)445-447
Number of pages3
JournalElectronics Letters
Issue number7
Publication statusPublished - 28 Mar 2013

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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