UWB small slot antenna with WLAN frequency band-stop function

Author

Ojaroudi, Nasser ; Ghadimi, Noradin

Author_Institution

Dept. of Electr. Eng., Islamic Azad Univ., Germi, Iran

Volume

49

Issue

21

fYear

2013

fDate

October 10 2013

Firstpage

1317

Lastpage

1318

Abstract

A new design of a multi-resonance small slot antenna with variable band-notched function for ultra-wideband (UWB) applications is proposed. The proposed slot antenna consists of a square radiating stub and a ground plane with a pair of L-shaped parasitic structures and an inverted T-shaped strip protruding inside the rectangular slit, which provides a wide usable fractional bandwidth of more than 135% (2.98-16.73 GHz), while showing the band rejection performance in the frequency band of 5.05-5.9 GHz to avoid any interference from wireless local area network systems. The designed antenna has a small size of 20 × 20 × 0.8 mm³. Simulated and experimental results obtained for this antenna show that it exhibits good radiation behaviour within the UWB frequency range.

Keywords

antenna radiation patterns; microwave antennas; radiofrequency interference; slot antennas; ultra wideband antennas; ultra wideband communication; wireless LAN; L-shaped parasitic structure; UWB frequency range; UWB small slot antenna; WLAN frequency band-stop function; band rejection performance; frequency 5.05 GHz to 5.9 GHz; ground plane; interference; inverted T-shaped strip; multiresonance small slot antenna; rectangular slit; square radiating stub; ultra-wideband application; variable band-notched function; wireless local area network;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2013.2577

Filename

6651352