Hand-held microwave direction-of-arrival finder based on varactor-tuned analog aerial beamforming

Takashi Ohira, Koichi Gyoda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

42 Citations (Scopus)


A newly developed prototype microwave direction-of-arrival (DOA) finder is presented. Varactor-loaded passive radiators around the main monopole radiator steer the beam in the full 360-degree azimuth angles. Unlike digital beamforming (DBF) approaches, only one RF receiver is needed for estimating the DOA. This simplicity provides sufficient light weight for hand-held portability, and low power consumption for 4-hour continuous battery operation.

Original languageEnglish
Title of host publicationAsia-Pacific Microwave Conference Proceedings, APMC
Number of pages4
Publication statusPublished - 2001 Dec 1
Externally publishedYes
Event2001 Asia-Pacific Microwave Conference - Taipei, Taiwan, Province of China
Duration: 2001 Dec 32001 Dec 6

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC


Conference2001 Asia-Pacific Microwave Conference
Country/TerritoryTaiwan, Province of China

ASJC Scopus subject areas

  • Engineering(all)


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