Characteristics of a Multi-bandwidth Gear Microstrip Antenna Using a Taper for Feeding
In this paper, a gear microstrip antenna (GMA) using a taper as a feeder is presented. Several techniques are demonstrated to overcome its inherent disadvantage of narrow bandwidth of microstrip antenna. For broadening the bandwidth, different configurations for the presented antenna using various materials are suggested. Partial ground with different dimensions and the GMA with a slot and without a slot are tested. Different substrates such as RT5880 substrate of thickness h=0.78mm and a relative permittivity εr=2.2, FR4 substrate of h=1.5mm and εr=4.65 and RT/Duroid 6010 substrate of h=1.25mm and εr=10.5 are also taken into account in the analysis. All these cases are analyzed using Zeland IE3D software and High Frequency Structure Simulator (HFSS). As much as 163.6％ and 26％ SWR<2 bandwidths are reported for the best case. Application of the GMA in modern wireless systems covering AWS, DCS, DECT, PCS, PHS, GSM, WCDMA, UMTS, DSR, Wi.Bro, ISM, DMB, C band and Ku band satellite, IMT2000, Wi-max, Wi-Fi, Fixed microwave links, DAB, and Bluetooth bands is widely demonstrated. The antenna comprises at two bands, from (1.5-15) GHz and (20-26) GHz having (2.9-4.5) dBi gain. This design has achieved a high average gain and low cross-polarization across its wide operating frequencies. The measured and simulated results are presented and discussed.
Adel M.Abdin
Dept.of Communications,Faculty of Engineering,Shorouk Academy Shorouk City,Cairo,Egypt
国际会议
Progress in Electromagnetics Research Symposium 2009(2009年电磁学研究新进展学术研讨会)(PIERS 2009)
北京
英文
1615-1619
2009-03-23（万方平台首次上网日期，不代表论文的发表时间）