Broad-band dual-polarized single microstrip patch antenna with high isolation and low cross polarization

Author

Chiou, Tzung-Wern ; Wong, Kin-Lu

Author_Institution

Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan

Volume

50

Issue

3

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

399

Lastpage

401

Abstract

This paper presents a new design of a broad-band dual-polarized single microstrip patch antenna with highly decoupled input ports and low cross-polarization (XP) radiation. A prototype of the proposed antenna with center frequency at 1800 MHz is presented. Both the dual linear polarizations have 10-dB return-loss impedance bandwidths greater than 14% and high decoupling between the two input ports (S₂₁ less than -40 dB across the entire bandwidths) is obtained. Moreover, the XP radiation in the principal planes of the dual linear polarizations is seen to be less than -20 dB

Keywords

UHF antennas; antenna radiation patterns; electromagnetic wave polarisation; microstrip antennas; 1800 MHz; 261 MHz; 359 MHz; broadband dual-polarized patch antenna; dual linear polarizations; high isolation; highly decoupled input ports; impedance bandwidths; low cross-polarization radiation; radiation patterns; return-loss; single microstrip patch antenna; Bandwidth; Feeds; Geometry; L-band; Microstrip antennas; Patch antennas; Polarization; Power dividers; Probes; Prototypes;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.999635

Filename

999635