Coplanar waveguide-fed uniplanar bow-tie antenna

Author

Lin, Yu-De ; Tsai, Syh-Nan

Author_Institution

Antenna Lab., Nat. Chiao Tung Univ., Hsinchu, Taiwan

Volume

45

Issue

2

fYear

1997

fDate

2/1/1997 12:00:00 AM

Firstpage

305

Lastpage

306

Abstract

The design of coplanar waveguide (CPW)-fed bow-tie antenna for the 2.4-GHz ISM band is described. A coplanar waveguide-to-coplanar strips (CPW-to-CPS) balun is used to obtain the balanced feed line for the printed bow-tie. An analysis method based on the mixed potential integral equation method is used to characterize the input characteristics of the bow-tie antenna. The numerical results obtained are in good agreement with the experimental data. Through experiments with bow-tie antennas of various extended angles, the bow-tie antenna with a 90° extended angle exhibits the widest bandwidth in the desired frequency band which has a bandwidth of 17% for a VSWR <1.5:1

Keywords

antenna feeds; antenna radiation patterns; antenna testing; coplanar waveguides; integral equations; microstrip antennas; mobile antennas; 2.4 GHz; ISM band; UHF; VSWR; analysis method; antenna radiation patterns; balanced feed line; bandwidth; coplanar waveguide fed antenna; coplanar waveguide to coplanar strips balun; experimental data; extended angles; frequency band; input characteristics; mixed potential integral equation; mobile station antenna; printed bow tie antenna; uniplanar bow tie antenna; Antenna measurements; Bandwidth; Circuits; Coplanar waveguides; Dipole antennas; Feeds; Frequency; Impedance matching; Integral equations; Mobile antennas;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.560350

Filename

560350