Summary
International Symposium on Antennas and Propagation
2010
Session Number:2WB1
Session:
Number:2WB1-3
Wideband and Dual?band Stacked Square Microstrip Antennas with Shorting Plates and Slits
Takafumi Fujimoto,
pp.-
Publication Date:2010/11/23
Online ISSN:2188-5079
Summary:
Author has been proposed a wideband stacked square microstrip antenna (MSA) with shorting plates [1]. By shorting the upper patch to the lower patch at two apexes of the diagonal of the square patch, the bandwidth of the vswr ≦ 2 has been achieved in the frequency range between the first and the third resonant frequencies and the gain at θ=0? around the second resonant frequency has been improved. In this paper, the improvement of the gain in the vicinity of the third resonant frequency is achieved by inserting slits on the upper patch and by changing the width of the shorting plates. Moreover, the vswr and gain of the antenna with slits on the lower patch are also discussed. The simulated results show that the antenna with slits on the lower patch has the similar gains around the first and second resonant frequencies. The antenna with slits on the lower patch is useful as a dual?band antenna which radiates at the same direction at two operational frequencies.