A circularly polarized small-size microstrip antenna with a cross slot

Hisao Iwasaki

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Abstract

A new, circularly polarized small-size microstrip antenna using a proximity coupled feed method is proposed. A simple configuration based on a cross slot with unequal slot lengths on a circular patch is adopted to realize a small-size element antenna. The proposed antenna has no 90° hybrid coupler for circular polarization. The measured results verify the circular polarization, and the antenna radius was reduced by about 36% by using the slot lengths which are nearly equal to the diameter of the circular patch antenna. Good impedance and axial ratio characteristics have been obtained.

Original languageEnglish
Pages (from-to)1399-1401
Number of pages3
JournalIEEE Transactions on Antennas and Propagation
Volume44
Issue number10
DOIs
Publication statusPublished - 1996 Dec 1

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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