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Dual-band circularly polarized dual-slot antenna with a dielectric cover

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

A new circularly-polarized (CP) dual-slot antenna fed by a single L-probe is proposed for dual-band applications. The antenna consists of a zonal slot and an annular slot, both of them being cut onto a square conducting cavity with a protective dielectric cover. It is observed that the resonance frequencies of the lower and upper bands are controlled by the zonal and annular slots, respectively, making designs of the dual-band antenna very easy. To demonstrate the idea, the proposed antenna was designed at 2.4/5.8 GHz for two IMS bands. The reflection coefficient, axial ratio, radiation pattern and gain of the dual-band antenna were studied, and reasonable agreement between the simulated and measured results was obtained. A parametric study was carried out to characterize the proposed antenna. © 2009 IEEE.
Original languageEnglish
Article number5109639
Pages (from-to)3757-3764
JournalIEEE Transactions on Antennas and Propagation
Volume57
Issue number12
DOIs
Publication statusPublished - Dec 2009

Research Keywords

  • Circular polarization
  • Dual-band
  • L-probe
  • Single feed
  • Slot antenna

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