Title :
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
fDate :
6/29/1905 12:00:00 AM
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;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2007.898543
