Effect of dielectric substrate on performance of planar trapezoidal toothed log-periodic antenna

Author

Patre, S.R. ; Singh, Sushil ; Singh, S.P.

Author_Institution

Dept. of Electron. Eng., Banaras Hindu Univ., Varanasi, India

fYear

2013

fDate

12-14 April 2013

Firstpage

1

Lastpage

4

Abstract

In this paper performance of planar trapezoidal toothed log-periodic antenna on different dielectric substrates through simulation using FEM based Ansoft HFSS software has been presented. This antenna is a type of frequency independent antenna. The performance characteristics of the proposed antennas formed by providing definite conducting pattern characterizing the antenna on different substrate materials (Bakelite (ε_r = 4.8, tanδ = 0.002), FR4_epoxy (ε_r = 4.4, tanε = 0.02), Arlon25FR (ε_r =3.43, tanε = 0.0035) and Teflon (ε_r = 2.08, tanε = 0.001)) having thickness of 1.6 mm as well as metal antenna without substrate material are studied. It is observed from the study that antenna on Teflon substrate provides widest bandwidth among all the substrate antennas. Further, the performance of antenna on Teflon substrate is almost similar to metal antenna without substrate.

Keywords

finite element analysis; planar antennas; FEM based Ansoft HFSS software; Teflon; dielectric substrate; frequency independent antenna; planar trapezoidal toothed log-periodic antenna; substrate materials; Antenna radiation patterns; Bandwidth; Dielectric substrates; Gain; Metals; Substrates; Frequency Independent Antenna; Impedance Pattern; Log-periodic antenna; Radiation Pattern; Wide bandwidth;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering and Systems (SCES), 2013 Students Conference on

Conference_Location

Allahabad

Print_ISBN

978-1-4673-5628-2

Type

conf

DOI

10.1109/SCES.2013.6547541

Filename

6547541