Improved coupled ultra-wideband dual-polarized antenna array with corrugated ground

Author

Xudong Bai ; Xianling Liang ; Junping Geng ; Ronghong Jin

Author_Institution

Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China

fYear

2014

fDate

6-11 July 2014

Firstpage

1738

Lastpage

1739

Abstract

An improved coupled ultra-wideband (UWB) dual-polarized antenna array with the periodically corrugated ground is presented. Toroidal elements are linked by interdigital capacitors, which are introduced to utilize the mutual coupling between elements and enlarge the array bandwidth. Extra dielectric layer is also placed over the capacitive-coupled array to improve the impedance stability. Besides, the corrugated ground is introduced to depress the surface waves, thus improve the radiation patterns and get a wider band. Simulation results show that the improved antenna array exhibits a 5:1 bandwidth, and gets a 1.8dB enhancement of the gain in the lower frequency.

Keywords

antenna arrays; antenna radiation patterns; electromagnetic wave polarisation; ultra wideband antennas; array bandwidth; capacitive-coupled array; dielectric layer; gain 1.8 dB; gain enhancement; impedance stability; improved antenna array; improved coupled UWB dual-polarized antenna array; improved coupled ultrawideband dual-polarized antenna array; interdigital capacitors; mutual coupling; periodically corrugated ground; radiation patterns; surface waves; toroidal elements; Antenna arrays; Arrays; Bandwidth; Dielectrics; Mutual coupling; Surface waves; Ultra wideband antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE

Conference_Location

Memphis, TN

ISSN

1522-3965

Print_ISBN

978-1-4799-3538-3

Type

conf

DOI

10.1109/APS.2014.6905195

Filename

6905195