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A subharmonic injection-locked oscillating antenna, operating simultaneously as a frequency doubler and as a QPSK modulator, is presented. A dual-gate MESFET is used with one of its gates integrated with a PIN diode switch controlled patch antenna and the other gate connected to a low-noise subharmonic stabilising signal. The experimental and simulation(More)
A novel glucose biosensor was fabricated. The first layer of the biosensor was polythionine, which was formed by the electrochemical polymerisation of the thionine monomer on a glassy carbon electrode. The remaining layers were coated with chitosan-MWCNTs, GOx, and the chitosan-PTFE film in sequence. The MWCNTs embedded in FAD were like "conductive wires"(More)
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