Uniplanar Ultrawideband Polarization Diversity Antenna With Dual Band-Notched Characteristics

Author

He Huang ; Ying Liu ; Shaoshuai Zhang ; Shuxi Gong

Author_Institution

Sci. & Technol. on Antenna & Microwave Lab., Xidian Univ., Xi´an, China

Volume

13

fYear

2014

fDate

7/6/1905 12:00:00 AM

Firstpage

1745

Lastpage

1748

Abstract

A uniplanar ultrawideband diversity antenna with dual band-notched characteristics is presented in this letter. The antenna employs orthogonal feeding structure to achieve polarization diversity performance over the ultrawideband from 2.3 to 11 GHz. The dual band-rejected operation is realized by employing two different methods. In addition, the stepped rectangle stub inserted in the ground at 45^° and irregular ground plane are adopted to enhance port isolation and antenna performance. The antenna was fabricated to study the performance such as S-parameters, radiation pattern, peak gain, antenna efficiency, and envelope correlation coefficient. Reasonable results show the suitability of the proposed antenna for portable terminal devices.

Keywords

antenna feeds; multifrequency antennas; planar antennas; polarisation; ultra wideband antennas; S-parameters; UWB antenna; antenna efficiency; antenna performance enhancement; dual band-notched characteristics; dual band-rejected operation; envelope correlation coefficient; irregular ground plane; orthogonal feeding structure; peak gain; port isolation enhancement; portable terminal devices; radiation pattern; stepped rectangle stub; uniplanar ultrawideband polarization diversity antenna; Antenna measurements; Frequency measurement; Ports (Computers); Scattering parameters; Ultra wideband antennas; Band-notched; envelope correlation coefficient (ECC); polarization diversity; ultrawideband (UWB) antenna; uniplanar;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2014.2354051

Filename

6891128