Design of a wideband microstrip bowtie patch antenna

Author

Loi, K.W. ; Uysal, S. ; Leong, M.S.

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore

Volume

145

Issue

2

fYear

1998

fDate

4/1/1998 12:00:00 AM

Firstpage

137

Lastpage

140

Abstract

A novel methodology is presented for the design of a wideband microstrip bowtie patch antenna of finite length placed on a dielectric substrate. The method presented is fast, computationally undemanding and reasonably accurate. This methodology is motivated by the observed array effect of the two trapezoidal halves on a single bowtie antenna. A single trapezoidal side is first designed and two such identical sides are then joined together at the apex and matched to a coaxial feed via sections of microstrip lines at the second-order resonance frequency. Experimental measurements for a bowtie designed in the X-band are shown to agree well with the simulated predictions. The bandwidth obtained was a significant 10.6%

Keywords

antenna feeds; antenna radiation patterns; antenna testing; microstrip antennas; microstrip lines; microwave antennas; X-band; antenna design; array effect; bandwidth; coaxial feed; dielectric substrate; experimental measurements; finite length; microstrip lines; radiation patterns; second-order resonance frequency; simulated predictions; trapezoidal halves; wideband microstrip bowtie patch antenna;

fLanguage

English

Journal_Title

Microwaves, Antennas and Propagation, IEE Proceedings

Publisher

iet

ISSN

1350-2417

Type

jour

DOI

10.1049/ip-map:19981632

Filename

675547