Broadband Patch Antennas Fed by Novel Tuned Loop

Author

Jing-Ya Deng ; Li-Xin Guo ; Ying-Zeng Yin ; Qiu, Jian ; Zhen-sen Wu

Author_Institution

Sch. of Sci., Xidian Univ., Xi´an, China

Volume

61

Issue

4

fYear

2013

fDate

4/1/2013 12:00:00 AM

Firstpage

2290

Lastpage

2293

Abstract

A novel tuned loop feed for patch antennas is described. The arrangement provides a symmetrical excitation of the patch with a double tuned response with enhanced bandwidth. The tuned loop together with the patch can be seen as a band pass filter comprising a series resonator and parallel resonator tuned to the same frequency. The tuned loop can easily be implemented as a microstrip PCB. A dual polarized patch antenna can be designed for diversity reception using this technique. Measured results are given, showing that this feed is effective in broadening the bandwidth of patch antennas. This configuration is a good candidate for radiating elements in cellular base station antennas.

Keywords

antenna feeds; antenna radiation patterns; broadband antennas; cellular radio; loop antennas; microstrip antennas; bandpass filter; broadband patch antennas; cellular base station antennas; diversity reception; double tuned response; dual polarized patch antenna; microstrip PCB; parallel resonator; radiating elements; series resonator; symmetrical excitation; tuned loop feed; Antenna measurements; Bandwidth; Feeds; Impedance; Patch antennas; Broadband patch antenna; dual polarized antenna;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2012.2237497

Filename

6401159