Probe-fed rectangular ring antenna with a cross-strip for low cross-polarization

Author

Srimoon, Duang-arthit ; Phongcharoenpanich, Chuwong ; Krairiksh, Monai

Author_Institution

Res. Center for Commun. & Inf. Technol., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok

Volume

54

Issue

5

fYear

2006

fDate

5/1/2006 12:00:00 AM

Firstpage

1586

Lastpage

1591

Abstract

In this paper, a probe-fed rectangular ring with a cross-strip for wireless local-area network system is proposed. The antenna is analyzed by using the three-dimensional finite-difference time-domain method. The effects of various parameters on the characteristics of the antenna are studied. The computed and measured results for the return loss and co- and cross-polarization patterns are presented and compared. A prototype antenna operating at 2.44 GHz shows an impedance bandwidth (2:1 VSWR) of 13.06% and a gain of 9.5 dBi. Good radiation characteristics, including a cross-polarization level in both E- and H-planes greater than 26 dB and a front-to-back ratio (F/B) of radiation pattern greater than 16 dB, have been obtained

Keywords

UHF antennas; antenna feeds; antenna radiation patterns; electromagnetic wave polarisation; finite difference time-domain analysis; microstrip antennas; wireless LAN; 2.44 GHz; WLAN; cross-polarization level; cross-strip antenna; impedance bandwidth; probe-fed rectangular ring antenna; radiation pattern; three-dimensional finite-difference time-domain method; wireless local-area network system; Arm; Bandwidth; Finite difference methods; Geometry; Local area networks; Microstrip antennas; Probes; Time domain analysis; Wireless LAN; Wireless communication; Bandwidth enhancement; cross-strip; finite-difference time-domain (FDTD) method; low cross-polarization; ring antenna; unidirectional antenna; wireless local-area network (WLAN);

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2006.874356

Filename

1629289