Design of an x-band microstrip array antenna for circular polarization

Author

Rahman, Md Arifur ; Hossain, Quazi Delwar ; Hossain, Md Aynal ; Nishiyama, Eisuke ; Toyoda, Ichihiko

Author_Institution

Chittagong Univ. of Eng. & Technol., Chittagong, Bangladesh

fYear

2014

fDate

20-22 Dec. 2014

Firstpage

184

Lastpage

187

Abstract

In this paper, the design of a circularly polarized array antenna with 9.56 dBi of gain at 10 GHz frequency is presented. The proposed antenna consists of a 2×2 array antenna with feed network where all microstrip patches are linearly polarized. “Both-Sided MIC Technology” is used to design the proposed array antenna. The simulated return loss of the proposed array antenna is less than -35dB. The 3 dB axial ratio bandwidth of 2.21% is obtained. The unequal feed line is used in order to realize 90° phase difference between the linearly polarized patches. Therefore, the circular polarization is realized by the combination of linearly polarized patches and unequal feed line. The structure and the basic behavior along with the simulation results of the proposed linearly polarized array antenna are demonstrated in this paper.

Keywords

MMIC; antenna feeds; electromagnetic wave polarisation; microstrip antenna arrays; X-band microstrip antenna array; axial ratio; both-sided MIC technology; circular polarization; feed line; feed network; frequency 10 GHz; phase difference; return loss; Antenna arrays; Arrays; Feeds; Microstrip; Microstrip antennas; Polarization; Both-Sided MIC technology; array antenna; axial ratio; circular polarization; patch antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering (ICECE), 2014 International Conference on

Conference_Location

Dhaka

Print_ISBN

978-1-4799-4167-4

Type

conf

DOI

10.1109/ICECE.2014.7026891

Filename

7026891