Omnidirectional Horizontally Polarized Magnetic Dipole Array Facilitated by Folded TE0.5,0Mode Waveguide

Wei Lin, Richard W. Ziolkowski

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


An omnidirectional horizontally polarized (OHP) magnetic dipole array is reported that achieves a high directivity and has a simple configuration. This OHP array is facilitated by a partially folded TE_{0.5,0} mode rectangular waveguide. A set of folded sections along the waveguide realize collinear and in-phase magnetic dipole radiators thanks to the effective cancellation of the out-of-phase electric fields in them. The entire waveguide is excited by a microstrip feedline via a shorting pin in the middle. A design model has been optimized for the 2.5 GHz WLAN band and achieves excellent radiation performance. The simulated -10dB impedance bandwidth covers 190 MHz (7.8%) from 2.33 to 2.52 GHz. The realized gain values are stable across the entire bandwidth with a 8.7 dBi peak value. Good omnidirectional radiation patterns are also observed with the out-of-roundness value less than 3 dB. The presented OHP magnetic dipole array is an ideal candidate for point-to-multipoint communication or wireless power transfer applications.

Original languageEnglish (US)
Title of host publication2020 Asia-Pacific Microwave Conference, APMC 2020 - Proceeding
EditorsJie Sun, Wai Ho Yu
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages2
ISBN (Electronic)9781728169620
StatePublished - Dec 8 2020
Event2020 Asia-Pacific Microwave Conference, APMC 2020 - Virtual, Hong Kong, Hong Kong
Duration: Dec 8 2020Dec 11 2020

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC


Conference2020 Asia-Pacific Microwave Conference, APMC 2020
Country/TerritoryHong Kong
CityVirtual, Hong Kong

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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