Title :
Broadband circularly polarized annular ring array antenna for wireless communications
Author :
Shetty, Shodhan ; Daryoush, Afshin S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA
Abstract :
Future mobile communication systems are based on digitally beam formed multibeam phased array systems. The multibeams are generated and scanned using electronic scanning. The broadband circularly polarized antennas are important element in this communication structure. This paper presents implementation and experimental evaluation of a 2times2 array antenna using annular ring patch 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 :
UHF antennas; antenna phased arrays; broadband antennas; electromagnetic wave polarisation; loop antennas; microstrip antenna arrays; mobile radio; 2.1 to 2.7 GHz; annular ring array antenna; annular ring patch antenna; broadband circularly polarized antenna; electronic scanning; mobile communication systems; multibeam phased array systems; wireless communications; Antenna arrays; Antennas and propagation; Bandwidth; Broadband antennas; Impedance; Microstrip antenna arrays; Microstrip antennas; Polarization; Receiving antennas; Wireless communication;
Conference_Titel :
Radio and Wireless Symposium, 2006 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-9412-7
DOI :
10.1109/RWS.2006.1615183
