A Wideband Dual-Polarized Array Antenna With Conical Elements for Wi-Fi/WiMAX Application

Author

Xiao-Li Zhao ; Jie Jin ; Jui-Ching Cheng ; Lin-Gao Liang

Author_Institution

Sch. of Electron. Inf. Eng., Tianjin Univ., Tianjin, China

Volume

13

fYear

2014

fDate

2014

Firstpage

1609

Lastpage

1612

Abstract

In this letter, a dual-polarized array antenna with wide bandwidth and high gain is presented for Wi-Fi/WiMAX application. The array antenna comprises a single substrate layer, a radiation patch layer, and conical elements. For comparison, an array antenna with two layers of substrates is designed. The reflection coefficient of the antenna with cones is better than -10 dB in the range of 4.9 ~ 5.96 GHz with a relative bandwidth of 19.52%, which is higher than that of the antenna with two substrate layers (14.05%). The maximum gains of the proposed antenna with cones achieve approximately 19.2 and 18.8 dBi at 5.5 GHz for the two orthogonal polarizations, respectively. In addition, high isolation and low cross-polarization levels are observed.

Keywords

WiMax; antenna radiation patterns; broadband antennas; conical antennas; microstrip antenna arrays; wireless LAN; Wi-Fi-WiMAX; conical elements; frequency 5.5 GHz; high isolation cross-polarization levels; low cross-polarization levels; microstrip array antennas; orthogonal polarizations; radiation patch layer; reflection coefficient; single substrate layer; wideband dual-polarized array antenna; Antenna arrays; Antenna measurements; Arrays; Bandwidth; Broadband antennas; Substrates; Array antenna; cones; dual-polarized antenna; wideband;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2014.2346781

Filename

6878474