A high selectivity band-notched UWB antenna with controllable notched bandwidths

Author

Yang, Guang ; Chu, Qing-Xin

Author_Institution

Sch. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou, China

fYear

2012

fDate

8-14 July 2012

Firstpage

1

Lastpage

2

Abstract

A CPW-fed ultra-wideband (UWB) antenna with controllable notched bandwidths by using multiple resonant slots, ranging from 5.2GHz to 5.8GHz, is proposed and implemented. The notched band rejection is achieved by the slots etched in the radiator patch, which are coupled together. And the notched bandwidth can be controlled by adjusting the coupling distances and positions of the slots. The simulation and measurement show that the proposed antenna achieves a well-matched broadband impedance of 3.1-10.6 GHz (|S11|<;-10dB), except the rejection bandwidth of 5.2-5.8 GHz in the bands of WLAN (|S11|>;-3dB). The ratio of the 3dB and 10dB notched bandwidth is about 0.75 and high selectivity of the notched band is obtained.

Keywords

antenna radiation patterns; broadband antennas; coplanar waveguides; microstrip antennas; microwave antennas; ultra wideband antennas; wireless LAN; CPW-fed ultra-wideband antenna; WLAN; antenna radiator patch; controllable notched bandwidths; frequency 3.1 GHz to 10.6 GHz; frequency 5.2 GHz to 5.8 GHz; gain 10 dB; gain 3 dB; high selectivity band-notched UWB antenna; multiple resonant slots; well-matched broadband impedance; Antenna measurements; Bandwidth; Couplings; Slot antennas; Ultra wideband antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE

Conference_Location

Chicago, IL

ISSN

1522-3965

Print_ISBN

978-1-4673-0461-0

Type

conf

DOI

10.1109/APS.2012.6348626

Filename

6348626