Wideband High Directive Aperture Coupled Microstrip Antenna Design by Using a FSS Superstrate Layer

被引:129
作者
Pirhadi, Abbas [1 ]
Bahrami, Hadi [2 ]
Nasri, Javad [2 ]
机构
[1] Shahid Beheshti Univ GC SBU, Cognit Telecommun Res Grp, Tehran, Iran
[2] Tarbiat Modares Univ TMU, Fac Elect Engn, Tehran, Iran
关键词
Electromagnetic bandgap; frequency selective surface (FSS); microstrip antennas; superstrate layer; LEAKY-WAVE ANTENNAS; FABRY-PEROT CAVITY; EBG ANTENNA; BANDWIDTH;
D O I
10.1109/TAP.2012.2186230
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
in this communication a high directive electromagnetic bandgap (EBG) antenna operating in wide frequency band for both return loss (RL) and directivity is examined. In this EBG antenna an aperture coupled microstrip antenna (ACMA) is used as a feeding source and a frequency selective surface (FSS) is used as a superstrate layer. Suitable use of the superstrate layer, microstrip patch and coupling aperture simultaneously, leads to produce separate resonance frequencies and therefore the wide frequency band for RL. Also, high directivity is achieved only by using the superstrate layer that has been made by the FSS layer with square loop elements. At first, a wideband ACMA is designed to operate in x-band. In this step appropriate design of coupling aperture is of a great importance. Secondly, after the design of optimum superstrate layer by the FSS structure, it is added to the ACMA in order to increase both bandwidth and directivity.
引用
收藏
页码:2101 / 2106
页数:6
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