Bandwidth Enhancement of a Coupled Meander-Line-Feed High Gain Whip Antenna

Author

Chen, I. Fong

Author_Institution

Jin-Wen Inst. of Technol., Taipei

Volume

55

Issue

11

fYear

2007

Firstpage

3078

Lastpage

3082

Abstract

High gain whip antenna fed by a meander-line with a coupled tuning stub for bandwidth enhancement is proposed and experimentally investigated. Both impedance and radiation characteristics of this antenna are studied. Experimental results indicate that a 1:2 VSWR bandwidth of 700 MHz is achieved at operating frequencies around 2.4 GHz, which is nearly nine times that of a conventional 5/8-wavelength whip antenna. Finite-difference time-domain simulation is used for optimization of the antenna and the results agree well with the measurement. The gain variations are less than 1.5 dBi in the resonant band. The experimental results of the constructed prototype are presented.

Keywords

UHF antennas; antenna radiation patterns; finite difference time-domain analysis; antenna radiation characteristics; bandwidth enhancement; finite-difference time-domain simulation; high gain whip antenna; meander-line; tuning stub; Antenna feeds; Antennas and propagation; Bandwidth; Broadband antennas; Impedance; Multiaccess communication; OFDM; Tuning; Wireless LAN; Wireless communication; Coupled tuning stub; meander-line; whip antenna;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2007.908564

Filename

4380557