BANDWIDTH ENHANCEMENT AND CROSS-POLARIZATION SUPPRESSION IN ULTRAWIDEBAND MICROSTRIP ANTENNA WITH DEFECTED GROUND PLANE

被引：17

作者：

Khandelwal, Mukesh Kumar ^{[1
]}

Kanaujia, Binod Kumar ^{[2
]}

Dwari, Santanu ^{[1
]}

Kumar, Sachin ^{[2
]}

Gautam, A. K. ^{[3
]}

机构：

[1] ISM, 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 & Elect Engn, Uttrakhand 246194, India

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2014年 / 56卷 / 09期

关键词：

antenna gain enhancement; bandwidth enhancement; cross-polarization suppression; defected ground plane; microstrip antenna; PATCH ANTENNAS; BAND;

D O I：

10.1002/mop.28499

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 compact microstrip antenna is proposed with very wide bandwidth ranging from 2 to 18 GHz. Impedance bandwidth of 160% is achieved which covers S, C, X, and Ku bands. Antenna gain upto 5 dBi is achieved within the operating band with suppressed cross-polarized radiation characteristics. The maximum cross-polarization levels are -28 and -20 dB in E-plane and H-plane, respectively. Further, the ground plane of the proposed antenna is embedded with triangular and square defects. Proposed antenna with defected ground plane operates in impedance bandwidth ranging from 2 to 21 GHz and bandwidth is improved to the value of 165.22%. The antenna gain is improved upto the maximum value of 18 dBi within the band of operation. The maximum cross-polarization levels are improved to the value of -40 and -42 dB in E-plane and H-plane, respectively. The measured results are in good match with simulated results for both the antennas. (C) 2014 Wiley Periodicals, Inc.

引用

页码：2141 / 2146

页数：7

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