Bowtie Dipole Antenna With Wide Beamwidth for Base Station Application

Author

Qu, Shi-Wei ; Li, Jia-Lin ; Xue, Quan

Author_Institution

City Univ. of Hong Kong, Hong Kong

Volume

6

fYear

2007

fDate

6/29/1905 12:00:00 AM

Firstpage

293

Lastpage

295

Abstract

A novel antenna, composed of a bowtie dipole element above the ground plane and a metallic bridge for wide beamwidth, is proposed in this paper. The antenna shows a simple structure and is fed by a conventional balun (or a transition from microstrip line to coplanar stripline). Measurement shows that the antenna has an impedance bandwidth of 25.3% for stand wave ratio . In a frequency band of 11.5% (5.35-6 GHz), it presents radiation patterns with beamwidth of over 115 in H-plane and below 31 in E-plane and sidelobe levels below 10 dB. The radiation patterns of the proposed antenna and a referenced one with the same sizes but without the bridge are compared in this paper.

Keywords

antenna radiation patterns; baluns; dipole antennas; microwave antennas; balun; base station application; bowtie dipole antenna; bowtie dipole element; frequency 5.35 GHz to 6 GHz; metallic bridge; radiation patterns; Antenna measurements; Antenna radiation patterns; Bandwidth; Base stations; Bridges; Dipole antennas; Impedance matching; Impedance measurement; Microstrip antennas; Stripline; Base stations; bowtie antennas; unidirectional patterns; wide beamwidth;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2007.898543

Filename

4265588