Dual-mode retrodirective/phased array

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


A method for producing a retrodirective (self-tracking) antenna, which can also be operated as a phased (selectively pointed) array through the addition of a simple switching circuit and DC bias offset adjustment, is presented. Phase adjustment to individual antenna elements is shown to be readily carried out by a simple frequency pushing technique, applied to a PLL circuit, thus replacing the requirement for additional phase shifters. Practical results when applied to a ten-element array operating at 2.4 GHz are shown for both modes of operation.
Original languageEnglish
Pages (from-to)139-141
Number of pages3
JournalElectronics Letters
Issue number3
Publication statusPublished - Jan 2009

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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