Compact slot antenna for ultra-wide band applications

Author

Bing Gong ; Xue Shi Ren ; Ying Yin Zeng ; Lin Hua Su ; Qiu Rong Zheng

Author_Institution

Nat. Key Lab. of Sci. & Technol. on Antennas & Microwaves, Xidian Univ., Xi´an, China

Volume

8

Issue

3

fYear

2014

fDate

February 18 2014

Firstpage

200

Lastpage

205

Abstract

A novel compact ultra-wide band antenna with L-shaped slot is presented. The printed antenna is fed by a microstrip feed line to achieve impedance matching for the SMA connector. The proposed antenna offers 118% bandwidth when printed on a substrate of dielectric constant 4.4 and has an overall dimension of 23.7 × 23.7 × 0.8 mm³. The simulated and measured reflection characteristics of the antenna with the variation of key-parameters along with radiation patterns of the final antenna are presented and discussed. In addition, by decreasing the dimension of radiating patch, band-notched properties in the lower wireless local area network (WLAN) (5.15-5.35 GHz) or higher WLAN (5.725-5.825 GHz) bands are achieved. With the compact size and broadband, this antenna is very suitable for using in a trade-off which has to be taken account for a design of miniaturisation.

Keywords

antenna feeds; antenna radiation patterns; microstrip antennas; slot antennas; ultra wideband antennas; wireless LAN; L-shaped slot; SMA connector; WLAN; band notched properties; compact slot antenna; dielectric constant; frequency 5.15 GHz to 5.35 GHz; frequency 5.725 GHz to 5.825 GHz; impedance matching; microstrip feed line; patch radiation; printed antenna; radiation patterns; ultrawide band antenna; ultrawide band applications; wireless local area network;

fLanguage

English

Journal_Title

Microwaves, Antennas & Propagation, IET

Publisher

iet

ISSN

1751-8725

Type

jour

DOI

10.1049/iet-map.2013.0067

Filename

6746583