Analysis and design of wide band Microstrip-line-fed antenna with defected ground structure for Ku band applications

被引：44
|
作者：
Khandelwal, Mukesh Kumar [1 ]
Kanaujia, Binod Kumar [2 ]
Dwari, Santanu [1 ]
Kumar, Sachin [2 ]
Gautam, A. K. [3 ]
机构：
[1] Indian Sch Mines, Dept Elect Engn, Dhanbad 826004, Bihar, India
[2] Ambedkar Inst Adv Commun Technol & Res, Dept Elect & Commun Engn, Delhi 110031, India
[3] GB Pant Engn Coll, Dept Elect & Commun Engn, Pauri Garhwal 246194, Uttarakhand, India
来源：
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 2014年 / 68卷 / 10期
关键词：
Cross-polarization suppression; Defected Ground Structure (DGS); Equivalent circuit model; Wide band Microstrip antenna; ACCURATE MODEL; CIRCUIT MODEL; SUPPRESSION;
D O I：
10.1016/j.aeue.2014.04.017
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：
A wide band Microstrip antenna is proposed for Ku band applications with defected ground structure. A circular shape defect is integrated in the ground plane. A novel equivalent circuit model is proposed for Microstrip patch antenna with defected ground structure. Accurate design equations are presented for the wideband Microstrip antenna and theoretical analysis is done for the proposed structure. The proposed antenna has an impedance bandwidth of 56.67% ranging from 9.8 GHz to 17.55 GHz, which covers Ku-band and partially X-band. The antenna shows good radiation characteristics within the entire band, and has a gain ranging from 5 dBi to 12.08 dBi. Minimum isolation between co-polar and cross-polarization level of 20 dB and 15 dB is achieved in H-plane and E-plane respectively. The simulation of the proposed antenna is done on HFSS v.14, and measured results of fabricated antenna are in good agreement with the theoretical and simulated results. (C) 2014 Elsevier GmbH. All rights reserved.
引用
收藏
页码：951 / 957
页数：7
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