By Topic

Broadband Circularly Polarized Slot Antenna Array Using Sequentially Rotated Technique for C -Band Applications

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Rafii, V. ; Dept. of Electr. & Electron. Eng., Urmia Univ., Urmia, Iran ; Nourinia, J. ; Ghobadi, C. ; Pourahmadazar, J.
more authors

This letter presents the investigation results on a novel circularly polarized square-slot antenna (CPSSA) array designed to operate at a frequency of 5.5 GHz. In order to realize the proposed antenna array, four miniature circular polarized square-slot antennas are used with L-shape grounded strips located at the slots' opposite corners to reduce cross polarization. The antenna is fed by symmetric coplanar waveguide. The CPSSA element achieves a bandwidth of 16.6% for an axial ratio ≤ 3&nbsp;dB. The CPSSA's performance is further enhanced with the construction of a novel 2&nbsp;&times;&nbsp; 2 antenna array that is designed using sequentially rotated feed technique. The 3-dB axial ratio of the array extends to approximately 2 GHz with an impedance bandwidth of 31%. The CPSSA array was designed to operate over the frequency range between 4 and 6.825 GHz corresponding to an impedance bandwidth of 52% for VSWR <; 2 (1.71:1). Acceptable agreement between the simulation and measured results validates the proposed design.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:12 )