A BROADBAND SUSPENDED MICROSTRIP ANTENNA FOR CIRCULAR POLARIZATION | Zendy

Veeresh G. Kasabegoudar | Zendy; K. J. Vinoy | Zendy

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A BROADBAND SUSPENDED MICROSTRIP ANTENNA FOR CIRCULAR POLARIZATION

Author(s) -

Veeresh G. Kasabegoudar,

K. J. Vinoy

Publication year - 2009

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier09012901

Subject(s) - broadband , microstrip antenna , circular polarization , patch antenna , acoustics , physics , optics , microstrip , antenna (radio) , telecommunications , engineering

In this paper we propose a circularly polarized (CP) microstrip antenna on a suspended substrate with a coplanar capacitive feed and a slot within the rectangular patch. The antenna has an axial ratio bandwidth (< 3dB) of 7.1%. The proposed antenna exhibits a much higher impedance bandwidth of about 49% (S11 < 10dB) and also yields return loss better than 15dB in the useful range of circular polarization. Measured characteristics of the antenna are in good agreement with the simulated results. The radiation patterns indicate good cross polarization rejection and low back lobe radiations. The design proposed here can be scaled to any frequency of interest.

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