A FAN-SHAPED CIRCULARLY POLARIZED PATCH ANTENNA FOR UMTS BAND
Author(s) -
Sumitha Mathew,
Ramachandran Anitha,
T. K. Roshna,
C. M. Nijas,
C. K. Aanandan,
P. Mohanan,
Kesavath Vasudevan
Publication year - 2014
Publication title -
progress in electromagnetics research c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 34
ISSN - 1937-8718
DOI - 10.2528/pierc14062303
Subject(s) - umts frequency bands , turnstile antenna , patch antenna , microstrip antenna , physics , antenna (radio) , coaxial antenna , telecommunications , computer science
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 50mm £ 50mm £ 1:6mm. 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{2170MHz band and can be employed for Mobile Communication applications.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom