期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2013
卷号：2
期号：9
页码：2637-2641
出版社：Shri Pannalal Research Institute of Technolgy
摘要：This paper presents a novel design of frequency reconfigurable aperture coupled microstrip antenna with bandwidth improvement. The proposed design was based on the structure of a 2 by 2 planar array antenna with separated feeding technique, aperture coupler. The antenna is designed on Rogers Duroid substrate having dielectric, ¦Å, of 2.2. Four dumbbell shaped DGS were etched on the ground plane for back radiation reduction. An antenna without DGS is first designed acting as reference. Both of the designs were simulated Electromagnetic simulation software based on operating frequency of 5.8GHz and 6.48GHz. The results show that, by incorporating DGS onto the antenna, the bandwidth and gain of the antenna increased significantly. Gain improved from 9.51dBi to 9.99 dBi at 5.8GHz. The bandwidth of the antenna improved by 28%. This design concept can be useful in reducing the back radiation of aperture coupled microstrip antenna.
