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Failure detection and correction in switch reconfigurable antenna arrays


Please use this identifier to cite or link to this item: http://hdl.handle.net/1928/17448

Failure detection and correction in switch reconfigurable antenna arrays

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Title: Failure detection and correction in switch reconfigurable antenna arrays
Author: Rivera, Manuel Joseph
Advisor(s): Christodoulou, Christos
Committee Member(s): Joseph, Costantine
Mark, Gilmore
Department: University of New Mexico. Dept. of Electrical and Computer Engineering
Subject: Reconfigurable
Antenna Array
Switch Failure
LC Subject(s): Antenna arrays--Testing.
Electric fault location.
Degree Level: Masters
Abstract: Switch based reconfigurable antennas are becoming more frequently used, especially in evolving applications such as communications, radar, and cognitive radio. Current methods to detect switch failure in these antennas provide poor detection results, require excessive computation time, and are incapable of fixing such failures in a real world application. Two prototype antennas were designed, simulated, and tested with two different methods for detecting and correcting switch failures: A 2x1 antenna array with 4 switches and a 2x2 array with 8 switches. The first detects surface current changes by embedding a sensor in each element. The second detects E-Field changes by embedding 4 thin sensing lines in the substrate. Both detection methods succeeded in accurately detecting switch failure and identifying the p articular failed switch. The proposed approach presents a compact and efficient way of monitoring switches in an antenna array. In a field where detection has been difficult or impossible for switch based reconfigurable antennas, this research provides an avenue to improve and automate detection/correction of switch failures in reconfigurable antennas.
Graduation Date: December 2011
URI: http://hdl.handle.net/1928/17448

Files in this item

Files Size Format View Description
Masters Thesis - Manuel Rivera.pdf 2.194Mb PDF View/Open Main Article
Final_2x1.hfss 946Kb Unknown View/Open
Final_2x1_SenseLine.hfss 204.6Kb Unknown View/Open
Final_2x2.hfss 2.208Mb Unknown View/Open

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