Wideband Compact 4-Port Dual Polarized Self-Grounded Bowtie Antenna

Author

Raza, Haider ; Hussain, Amir ; Jian Yang ; Kildal, Per-Simon

Author_Institution

Dept. of Signals & Syst., Chalmers Univ. of Technol., Gothenburg, Sweden

Volume

62

Issue

9

fYear

2014

fDate

Sept. 2014

Firstpage

4468

Lastpage

4473

Abstract

We present a dual-polarized self-grounded bowtie antenna. The antenna is mechanically simple and wideband. One of the characteristics is its flexibility: it can be used either as a 4-port antenna in multiple-input-multiple-output (MIMO) systems or as a directional 2-port dual-polarized antenna in radar or sensor systems. The latter application requires a balun. The 4-petal geometry of the antenna has been optimized for the best matching to 50 Ω coax over 1.5-3 GHz. Both simulated and measured results are presented to verify the design. The antenna radiates over parts of the bandwidth similar to four Huygens source, one from each petal, each having directivity close to 4.8 dBi.

Keywords

UHF antennas; antenna radiation patterns; baluns; broadband antennas; electromagnetic wave polarisation; microwave antennas; 4-petal geometry; Huygens source; MIMO system; antenna radiation pattern; balun; directional 2-port dual-polarized antenna; frequency 1.5 GHz to 3 GHz; multiple-input-multiple-output system; radar antenna; resistance 50 ohm; sensor system; wideband compact 4-port dual polarized self-grounded bowtie antenna; Antenna measurements; Directive antennas; Feeds; Frequency measurement; Geometry; Ports (Computers); Multiple-input–multiple-output (MIMO) antenna; self-grounded bowtie antenna; self-grounded monopole; ultra-wideband;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2014.2333062

Filename

6844025