A Dual-Band Dipole Antenna With Integrated-Balun

Author

Zhang, Hualiang ; Xin, Hao

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ

Volume

57

Issue

3

fYear

2009

fDate

3/1/2009 12:00:00 AM

Firstpage

786

Lastpage

789

Abstract

The design and realization of a dual-band balun-integrated dipole antenna is presented. A new type of dual-band balun is introduced as the feeding network, providing antiphase input signals for the dual-band dipole antenna. The dual-band balun is realized by the aid of a stepped-impedance transformer and tapped open-ended stubs. Combined with this balun, a uni-planar dual-band dipole antenna is designed. An experimental prototype working at 2.45/5.25 GHz are fabricated and measured. The measured performances of the antenna show good return loss and radiation patterns at the two working frequencies, proving the dual-band operation of the proposed dipole antenna.

Keywords

UHF antennas; antenna feeds; antenna radiation patterns; baluns; dipole antennas; microwave antennas; multifrequency antennas; antenna radiation pattern; dual-band balun-integrated dipole antenna; feeding network; frequency 2.45 GHz; frequency 5.25 GHz; stepped-impedance transformer; Antenna feeds; Antenna measurements; Antenna radiation patterns; Dipole antennas; Dual band; Frequency measurement; Impedance matching; Loss measurement; Performance evaluation; Prototypes; Balun; coplanar strip (CPS) line; differential feeding; dipole antenna; dual-band;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2009.2013440

Filename

4808336