Compact Open-Slot Antenna With Bandwidth Enhancement

Author

Liu, Weixing ; Yin, YinZeng ; Xu, WenLong ; Zuo, ShaoLi

Author_Institution

Nat. Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´´an, China

Volume

10

fYear

2011

fDate

7/3/1905 12:00:00 AM

Firstpage

850

Lastpage

853

Abstract

A compact open-slot antenna for bandwidth enhancement is presented. Multiple resonances are generated by using an asymmetrical rectangular patch with the U-shaped open-slot structure. Two bevels are cut on the patch to improve the impedance matching. The proposed antenna provides a wide impedance bandwidth of 122% from 2.95 to 12.1 GHz with -10-dB return loss. It is shown that the impedance bandwidth can be enhanced from 28% to 122% by using different antenna types. Moreover, this slot antenna is with a small size of 24.5 × 24.5 × 1 mm³, while maintaining the ultrawideband (UWB) performance.

Keywords

bandwidth allocation; impedance matching; microstrip antennas; resonance; slot antennas; ultra wideband antennas; U-shaped open slot structure; asymmetrical rectangular patch antenna; bandwidth 2.95 GHz to 12.1 GHz; bandwidth enhancement; compact open slot antenna; impedance matching; resonances; ultrawideband antenna; Antenna measurements; Bandwidth; Impedance; Microstrip antennas; Slot antennas; Ultra wideband antennas; Bandwidth enhancement; compact antenna; microstrip slot antenna; printed antennas; ultrawideband (UWB);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2165197

Filename

5986680