Formulation of Resonant frequency for Compact Microstrip Antennas

Author

Deshmukh, Amit A. ; Kumar, Girish

Author_Institution

Dept. of Electr. Eng., IIT Bombay, Mumbai

fYear

2006

fDate

9-14 July 2006

Firstpage

1981

Lastpage

1984

Abstract

A slot cut inside the microstrip antenna (MSA) gives compact MSA configurations like C-shaped MSA and rectangular ring MSA. The approximate equations to predict the resonant frequency of these MSAs have been reported in previous studies. In this paper, modified equations are presented which yields better accuracy in the frequency for different slot dimensions. These equations are obtained by studying the surface current distributions generated using ensemble software. A rectangular MSA (RMSA) of length (L) = 6 cm and width (W) = 4 cm, simulated using IE3D software on RT-duroid substrate (epsiv_r = 2.33, h = 0.159 cm, and tan delta = 0.001) has TM₁₀ mode resonance frequency of 1.607 GHz. The slot of different size was cut inside this RMSA to realize C-shaped and rectangular ring MSA

Keywords

UHF antennas; microstrip antennas; slot antennas; 1.607 GHz; 4 cm; 6 cm; C-shaped microstrip antennas; RT-duroid substrate; compact microstrip antennas; ensemble software; mode resonance frequency; rectangular ring microstrip antennas; resonant frequency; slot; surface current distributions; Current distribution; Dielectric constant; Differential equations; Microstrip antennas; Resonance; Resonant frequency; Slot antennas; World Wide Web;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium 2006, IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

1-4244-0123-2

Type

conf

DOI

10.1109/APS.2006.1710965

Filename

1710965