Compact ACS-fed UWB antenna for diversity applications

Author

Yuan-Fu Liu ; Peng Wang ; Hao Qin

Author_Institution

Res. Inst. of Electron. Sci. & Technol., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

50

Issue

19

fYear

2014

fDate

September 11 2014

Firstpage

1336

Lastpage

1338

Abstract

A compact asymmetric coplanar strip (ACS)-fed ultra-wideband (UWB) antenna for diversity applications is presented. The proposed antenna is composed of two circular radiating elements and orthogonal ACS-fed mechanisms to achieve diversity performance across the UWB from 2.66 to 11.08 GHz, and occupies a very compact size of 28.5 × 28.5 mm². By introducing a rectangular stub diagonally between the two circular radiating elements, an interport isolation better than 15 dB is achieved. Furthermore, the proposed antenna shows nearly omnidirectional radiation patterns, stable gains and a low envelope correction coefficient. The simple feeding structure, compact size and uniplanar design make it easy to be integrated within the portable device for wireless communications with diversity operations.

Keywords

UHF antennas; antenna feeds; antenna radiation patterns; microwave antennas; omnidirectional antennas; ultra wideband antennas; asymmetric coplanar strip; circular radiating element; compact ACS-fed UWB antenna; diversity application; frequency 2.66 GHz to 11.08 GHz; low envelope correction coefficient; omnidirectional radiation pattern; orthogonal ACS-fed mechanism; portable device; ultrawideband antenna; wireless communication;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2014.1678

Filename

6898634