volume | PIER Journals

2014-07-29

A Fan-Shaped Circularly Polarized Patch Antenna for UMTS Band

Sumitha Mathew,

Dr. Sumitha Mathew

Department of Electronics

Cochin University of Science and Technology

India

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Ramachandran Anitha,

Dr. Ramachandran Anitha

Department of Electronics

Cochin University of Science and Technology

India

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Thazhe Koralath Roshna,

Dr. Thazhe Koralath Roshna

Department of Electronics

Cochin University of Science and Technology

India

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Chakkanattu Nijas,

Dr. Chakkanattu Nijas

Department of Electronics

Cochin University of Science and Technology

India

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Chandroth K. Aanandan,

Dr. Chandroth K. Aanandan

Department of Electronics

Cochin University of Science and Technology

India

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Pezholil Mohanan,

Professor Pezholil Mohanan

Department of Electronics

Cochin University of Science & Technology

India

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Kesavath Vasudevan

Professor Kesavath Vasudevan

Department of Electronics

Cochin University of Science & Technology

India

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Progress In Electromagnetics Research C, Vol. 52, 101-107, 2014

doi:10.2528/PIERC14062303 | Google Scholar

Abstract

A simple microstrip circular disc antenna to excite circularly polarized radiation is presented. In a single-probe fed circular disc sector patch, the corners are further truncated to obtain circular polarization characteristics. The truncation helps to reduce the ground plane dimensions making the antenna more compact with overall dimensions of 50 mm x 50 mm x 1.6 mm. The lengths of truncation necessary to achieve circular polarization are mathematically expressed. The simulated and experimental results are compared and are found to be in good agreement. Axial ratio bandwidth of 1.3% is obtained. The overall size reduction is 55% in comparison with the original disc sector antenna. The antenna resonates in the UMTS 1900-2170 MHz band and can be employed for Mobile Communication applications.

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Sumitha Mathew, Ramachandran Anitha, Thazhe Koralath Roshna, Chakkanattu Nijas, Chandroth K. Aanandan, Pezholil Mohanan, and Kesavath Vasudevan, "A Fan-Shaped Circularly Polarized Patch Antenna for UMTS Band," Progress In Electromagnetics Research C, Vol. 52, 101-107, 2014.
doi:10.2528/PIERC14062303

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