Title :
A Compact Smart Antenna for WiMAX Radio
Author :
Huang, Yikun ; Tidd, Will ; Olson, Andy ; Wolff, Richard S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Montana State Univ., Bozeman, MT, USA
Abstract :
In this paper, we present our design and development of a compact, light weight, high gain smart antenna for WiMAX radio systems. The antenna head is an 8-monopole uniform circular array placed on a ground plane with ground skirt. The operation frequency is 5.8 GHz. The array is connected to an 8-channel beamforming board via low-loss coax. The 8-channel signal combines through a power splitter/combiner which directs the signal to/from the WiMAX radio. An FPGA chip is on board to control the digital phase shifters, attenuators and switches for T/R synchronization, signal searching, beamforming, and tracking. The test results show that the smart antenna is capable of tracking mobile targets, communicating directionally with desired users, suppressing interference and jamming, and enabling a long range with high throughput and reliable connection.
Keywords :
WiMax; adaptive antenna arrays; array signal processing; interference suppression; monopole antenna arrays; wireless channels; 8-channel beamforming board; 8-monopole uniform circular array; FPGA chip; WiMAX radio systems; antenna head; digital phase shifters; frequency 5.8 GHz; interference suppression; power splitter/combiner; smart antenna; tracking mobile targets; Antenna arrays; Array signal processing; Attenuators; Coaxial components; Digital control; Field programmable gate arrays; Frequency; Phase shifters; Target tracking; WiMAX; Smart antenna; WiMAX radio; analog beamforming; circular array; switched beam system.;
Conference_Titel :
Mobile WiMAX Symposium, 2009. MWS '09. IEEE
Conference_Location :
Napa Valley, CA
Print_ISBN :
978-1-4244-3989-8
Electronic_ISBN :
978-0-7695-3719-1
DOI :
10.1109/MWS.2009.37
