文章基本信息

标题：Enhancement of Inset Feed Microstrip Semicircular Patch Antenna Directivity using Dielectric Superstrate
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作者：Hayat Errifi ; Abdennaceur Baghdad ; Abdelmajid Badri 等
期刊名称：International Journal of Computer and Information Technology
印刷版ISSN：2279-0764
出版年度：2015
卷号：4
期号：2
出版社：International Journal of Computer and Information Technology
摘要：The subject of enhancing microstrip patch antennas directivity, using either a frequency selective surface (FSS) or a double-negative (DNG) metamaterial slab, has been investigated by a number of researchers in recent years. The purpose of this paper is to show that we can also achieve the same goal by using a much simpler design for the superstrate, namely a dielectric slab, whose performance can be comparable to those of the other two typical choices for the superstrate. In this paper, we study the influence of dielectric superstrate on the performances of inset feed semicircular patch antenna. This dielectric layer is disposed above the patch and both are separated by the air. The return loss, radiation pattern, and directivity are studied using HFSS software. The simulation results show that the gain, directivity and S11 parameter of the antenna with dielectric superstrate are increased significantly at X band (8-12GHz). Compared with the conventional patch antenna with the same size but without superstrate, the performance of the proposed antenna is improved obviously.
关键词：patch antenna; HFSS; dielectric slab; return ; Loss; gain; directivity