A Novel Compact Dual-Band Antenna Array With High Isolations Realized Using the Neutralization Technique

Author

Hong-Li Peng ; Rui Tao ; Wen-Yan Yin ; Jun-Fa Mao

Author_Institution

Key Lab. of Educ. Minist. for High-Speed Electron. Syst. Design & EMC Res., Shanghai Jiao Tong Univ., Shanghai, China

Volume

61

Issue

4

fYear

2013

fDate

4/1/2013 12:00:00 AM

Firstpage

1956

Lastpage

1962

Abstract

A novel compact dual-band antenna array with high isolations is presented in this paper. It consists of four antenna elements with two feeding networks, and it operates at dual-band of 0.89-0.96 and 1.7-2.2 GHz with return loss more than 9 dB, respectively. Two feeding networks are made of a wideband balun and a Wilkinson power divider, respectively. The two-port symmetrical array is constructed using the neutralization technique (NT), leading to the array port isolation over 30 dB from 0.5 to 3.0 GHz. Such a compact dual-band antenna array is realized and its gains and normalized patterns for both ports P₁ and P₂ are measured, with good agreements obtained in comparison with the simulated ones.

Keywords

UHF antennas; antenna feeds; baluns; microwave antenna arrays; multifrequency antennas; power dividers; Wilkinson power divider; antenna elements; array port isolation; compact dual-band antenna array; feeding networks; frequency 0.5 GHz to 3 GHz; frequency 0.89 GHz to 0.96 GHz; frequency 1.7 GHz to 2.2 GHz; neutralization technique; return loss; two-port symmetrical array; wideband balun; Antenna arrays; Antenna measurements; Arrays; Dual band; Power dividers; Scattering parameters; Compact antenna array; dual-band; high isolation; neutralization technique;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2012.2234714

Filename

6384677