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Researchers at Queen's University Belfast's Centre for Wireless Innovation (CWI) have combined expertise in on-body wireless sensors and frequency selective surfaces to solve a problem limiting the RF performance of medical sensors.
Experimental results are employed to show that a thin metal backed resistively loaded frequency selective surface (FSS) exhibits significant radar backscatter suppression when the structure is illuminated by an antenna placed in close proximity to the periodic array. This is investigated in the range 9-11 GHz by measuring the shift in the resonant frequency of an impedance matched (|S11| ~15 dB at...
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