Circularly polarized broadband annular ring array antenna for 4G communications

Author

Shetty, Sachin ; Daryoush, Afshin S.

Author_Institution

Dept. of Electr. & Comut. Eng., Drexel Univ., Philadelphia, PA, USA

fYear

2005

fDate

17-20 Oct. 2005

Firstpage

3306

Abstract

Future mobile communication systems could benefit from a digitally beam formed multibeam phased array systems. The multibeams are generated and scanned using phase and amplitude weighting in digital signal processors. The broadband circularly polarized antennas are important element in this communication structure. This paper presents implementation and experimental evaluation of annular ring patch antenna leading to implementation of 2×2 sub-array antenna at S-band. The achieved directivity gain is 9 dBi over frequency of 2.1-2.7 GHz. The input 2:1 VSWR is measured over frequency range of 1 GHz.

Keywords

4G mobile communication; antenna phased arrays; array signal processing; broadband antennas; electromagnetic wave polarisation; loop antennas; microstrip antenna arrays; multibeam antennas; 1 GHz; 2.1 to 2.7 GHz; 4G communication; annular ring patch antenna; beamformed multibeam phased array system; broadband circularly polarized antenna; digital signal processor; 4G mobile communication; Antenna arrays; Broadband antennas; Digital signal processors; Frequency; Mobile communication; Patch antennas; Phased arrays; Polarization; Signal generators;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 2005. MILCOM 2005. IEEE

Conference_Location

Atlantic City, NJ

Print_ISBN

0-7803-9393-7

Type

conf

DOI

10.1109/MILCOM.2005.1606165

Filename

1606165