Title :
Wideband Fan-Beam Low-Sidelobe Array Antenna Using Grounded Reflector for DECT, 3G, and Ultra-Wideband Wireless Applications
Author :
Falahati, Abolfazel ; NaghshvarianJahromi, M. ; Edwards, R.M.
Author_Institution :
Dept. of Electr. Eng., Iran Univ. of Sci. & Technol. (IUST), Tehran, Iran
Abstract :
A low-sidelobe fan-beam wideband linear array antenna employing a nonparasitic grounded reflector is presented. This fan-beam antenna is achieved using a six-element conventional planar monopole array antenna and feed network, which together produce sidelobes at - 26 dB. Dolph-Tschebyscheff distribution is employed, and a broadband array feed network is designed to satisfy beneficial input impedance bandwidth requirements in the frequency range 1.7-2.2 GHz. Therefore, this array covers applications of GSM-DCS2, DECT, and 3G. Combining planar monopole antenna as an array with nonparasitic grounded reflector allows an advantageous fan beam pattern to be generated. H-plane 3-dB beamwidths are controllable using grounded reflector height. In addition, the results are compared with and without reflector array antenna.
Keywords :
3G mobile communication; cellular radio; monopole antenna arrays; planar antenna arrays; reflector antenna feeds; ultra wideband antennas; 3G; DECT; Dolph-Tschebyscheff distribution; GSM-DCS2; broadband array feed network; frequency 1.7 GHz to 2.2 GHz; low-sidelobe array antenna; nonparasitic grounded reflector; planar monopole array antenna; ultra-wideband wireless application; wideband fan-beam array antenna; wideband linear array antenna; Antenna arrays; Antenna measurements; Antenna radiation patterns; Arrays; Feeds; Reflector antennas; 3G bands; Array antenna; DECT band; Dolph– Tschebyscheff distribution; fan-beam antenna; ground reflector; ultra-wideband radio;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2012.2226224
