Compact EBG ground plane microstrip antenna for high gain applications

Author

Aravind, V.S. ; Gupta, Shilpi

Author_Institution

Dept. of Electron. Eng., Sardar Vallabhbhai Nat. Inst. of Technol., Surat, India

fYear

2014

Firstpage

1

Lastpage

3

Abstract

This paper presents a novel compact microstrip antenna with EBG ground plane for high gain applications. A 25mm × 25mm microstrip antenna has been designed for a resonant frequency of 5.5Ghz and a slot of 18mm × 18mm is made for the improvement of bandwidth. Slots, even though improves the bandwidth, it will introduce unstable radiation pattern which results in backlobes. So the ground plane is replaced by metamaterial EBG structures to absorb the backlobes and to provide a unidirectional radiation pattern with high gain. L-shaped strips are introduced in the diagonally opposite corners of the patch to provide circular polarization. The antenna provides a gain of 7.2dBi and an impedence bandwidth of about 400Mhz around 4.9 and 5.5 Ghz.

Keywords

antenna radiation patterns; electromagnetic wave polarisation; energy gap; microstrip antennas; microwave metamaterials; L-shaped strips; backlobe absorbtion; circular polarization; compact EBG ground plane microstrip antenna; frequency 5.5 GHz; impedence bandwidth; metamaterial EBG structures; radiation pattern unstability; resonant frequency; unidirectional radiation pattern; Bandwidth; Broadband antennas; Metamaterials; Microstrip antennas; Periodic structures; Slot antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Emerging Technology Trends in Electronics, Communication and Networking (ET2ECN), 2014 2nd International Conference on

Print_ISBN

978-1-4799-6985-2

Type

conf

DOI

10.1109/ET2ECN.2014.7044963

Filename

7044963