A broadband cavity-backed slot antenna design with small cavity height and analysis on large ground plane

Author

Mishra, P.K. ; Jahagirdar, D.R. ; Kumar, Girish

Author_Institution

Res. Center Imarat, Defence R&D Organ., Hyderabad, India

fYear

2014

fDate

Feb. 28 2014-March 2 2014

Firstpage

1

Lastpage

6

Abstract

In this paper, design of broadband microstrip line fed cavity backed slot antenna with very small cavity height of 0.08 lambda is proposed. The antenna is designed for 1.8 GHz frequency band with wider beam coverage in E-plane. Parametric analysis of antenna is carried out to optimize antenna design for smaller cavity height, broad bandwidth and wider beam coverage. The radiation characteristic of antenna for different sizes of ground plane is analyzed in detail. Measured results of antenna with different ground plane sizes are presented. The Antenna has VSWR <;2 bandwidth of 18% and maximum gain of 7.2 dBi with wide beam coverage in E-plane.

Keywords

antenna feeds; antenna radiation patterns; broadband antennas; microstrip antennas; microstrip lines; slot antennas; E-plane; antenna design; antenna radiation characteristic; broadband cavity-backed slot antenna; broadband microstrip line fed cavity; frequency 1.8 GHz; ground plane; parametric analysis; small cavity height; smaller cavity height; Antenna measurements; Antenna radiation patterns; Broadband antennas; Cavity resonators; Microstrip antennas; Slot antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (NCC), 2014 Twentieth National Conference on

Conference_Location

Kanpur

Type

conf

DOI

10.1109/NCC.2014.6811243

Filename

6811243