CST – Computer Simulation Technology

Title:
A NEW SILICON-BASED PHOTOCONDUCTIVE MICROWAVE SWITCH
Author(s):
Joseph R. Flemish, Henry W. Kwan, Randy L. Haupt, Michael Lanagan
Source:
Microwave and Optical Technology Letters
Vol./Issue/Date:
Volume: 51, Issue: 1, January 2009
Year:
2009
Page(s):
248-252
Keywords:
DOA, Butler matrix, smart antenna, switched beam, rectangular array
Abstract:
Technique to find direction of arrival (DOA) has been promisingly constructed by smart antenna technology. It consists of array antennas and signal processing unit. Because of the limitation of space in commercial products, the size of antenna array should be designed with the smallest dimension. Also the processing unit is expected in low complexity and expense. Most of DOA finders were recently proposed employing linear array in which the size is linearly increased as a number of antenna elements. Also the processing units were fully comprised with high level of computation. In this paper, the low profile of 2.4 GHz DOA finder is proposed. The DOA finder is designed in the compact size of 2  2 array antennas. Using modified Butler matrix, the processing unit is very simple in which it can be handled by any economic microprocessors. The proposed finder is able to delicately specify DOA in every angle from 0° to 360°. The experimental results confirm the success of proposed DOA finder.
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