Summary
International Symposium on Antennas and Propagation
2009
Session Number:3A2
Session:
Number:3A2-4
Dual Band Microstrip Antenna with Rhombus Stub for WLAN Applications
Suwat Sakulchat, Amnoiy Ruengwaree,
pp.787-790
Publication Date:2009/10/21
Online ISSN:2188-5079
Summary:
Microstrip antennas are communication devices which designed for support wireless communication systems. Microstrip or printed antennas are low profile, small size, low cost and light weight [1]-[2]. However, microstrip antenna inherently has narrow bandwidth. Previously, the study of coplanar antenna (CPA) using slit and stub insertion in antenna has been designed for wireless communication systems with improved bandwidth and size reduction [3]-[4]. In this paper, the microstrip antenna with rhombus stub and using a pair of bent-slits loaded fed by microstrip line is presented. The prototype antenna has been developed from [4]-[6] which is dual band microstrip antenna using in WLAN communications coverage IEEE 802.11b/g (2.4- 2.4835 GHz), IEEE 802.16a (5.15-5.35 GHz) and IEEE 802.16d (5.7-5.9 GHz). The size of this prototype antenna has been reduced about 40% of [4] and 15% of [5]. The dual band frequency of this prototype antenna was controlled by adjusting rhombus stub and bent-slit loaded. In simulation of the return loss, gain and radiation pattern was using software IE3D program.