A novel MEMS-based CPW-fed slot antenna for broadband circular polarization and unidirectional radiation

Weiqiang Chen, Guifu Ding, Zhijuan Su, Binhong Li

Research output: Contribution to journalArticle

Abstract

A novel CPW-fed millimeter wave slot antenna for broadband circular polarization and unidirectional radiation with multilayer 3D structures is discussed. The antenna is fabricated based on micro-electro-mechanical systems micro-fabrication technology. Through a special short-circuiting stub perturbation method, the circular ring slot antenna generates circularly polarized radiation and achieves a broad impedance bandwidth of 20% with voltage standing-wave ratio (VSWR) ≤ 2 and circularly polarized bandwidth of 17.6% with AR ≤ 3 dB. By adding a special wave guiding slot structure and wave cutoff slot structure, a novel approximate perfect magnetic conductor surface, the antenna radiates unidirectionally and the peak gain increases from about 5.2 dB to 7.5 dB.

Original languageEnglish (US)
Pages (from-to)2352-2359
Number of pages8
JournalJournal of Micromechanics and Microengineering
Volume17
Issue number11
DOIs
StatePublished - Nov 1 2007

Fingerprint

slot antennas
Circular polarization
Slot antennas
Antenna feeders
circular polarization
slots
microelectromechanical systems
MEMS
antennas
standing wave ratios
broadband
bandwidth
Radiation
polarized radiation
radiation
millimeter waves
Antennas
laminates
Bandwidth
cut-off

ASJC Scopus subject areas

  • Instrumentation
  • Materials Science(all)
  • Mechanics of Materials
  • Computational Mechanics

Cite this

A novel MEMS-based CPW-fed slot antenna for broadband circular polarization and unidirectional radiation. / Chen, Weiqiang; Ding, Guifu; Su, Zhijuan; Li, Binhong.

In: Journal of Micromechanics and Microengineering, Vol. 17, No. 11, 01.11.2007, p. 2352-2359.

Research output: Contribution to journalArticle

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