Open AccessDESIGN OF IMPROVED PERFORMANCE RECTANGULAR MICROSTRIP PATCH ANTENNA USING PEACOCK AND STAR SHAPED DGS
Author(s) -
Preet Kaur,
Rajiv Kumar Nehra,
Manjeet Kadian,
Асок Де,
Sanjay Aggarwal
Publication year - 2014
Publication title -
international journal of electronic signal and systems
Language(s) - English
Resource type - Journals
ISSN - 2231-5969
DOI - 10.47893/ijess.2014.1201
Subject(s) - hfss , return loss , ground plane , microstrip antenna , antenna (radio) , patch antenna , microstrip , compact space , impedance matching , acoustics , radiation pattern , star (game theory) , computer science , topology (electrical circuits) , physics , electrical impedance , optics , telecommunications , mathematics , electrical engineering , engineering , mathematical analysis , astrophysics
In this paper, two novel defected ground structures (DGS) are proposed to improve the return loss, compactness, gain and radiation efficiency of rectangular microstrip patch antenna. The performance of antenna is characterized by the shape, dimension & the location of DGS at specific position on ground plane. By incorporating a peacock shaped slot of optimum geometries at suitable location on the ground plane, return loss is enhanced from -23.89 dB to -43.79 dB, radiation efficiency is improved from 97.66% to 100% and compactness of 9.83% is obtained over the traditional antenna .Simulation results shows that the patch antenna with star shaped DGS can improve the impedance matching with better return loss of -35.053 dB from -23.89 dB and compactness of 9% is achieved. In the end comparison of both DGS shapes is carried out to choose one best optimize one. The proposed antennas are simulated and analyzed using Ansoft HFSS (version 11.1) software.