High‐sensitivity, AM‐modulated harmonic transceiver for wireless sensing | Zendy

Davidova R. | Zendy; Weller T. | Zendy

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High‐sensitivity, AM‐modulated harmonic transceiver for wireless sensing

Author(s) -

Davidova R.,

Weller T.

Publication year - 2013

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

eISSN - 1350-911X

pISSN - 0013-5194

DOI - 10.1049/el.2012.3388

Subject(s) - transceiver , sensitivity (control systems) , wireless , electronic engineering , harmonic , electrical engineering , computer science , telecommunications , engineering , physics , acoustics

Described is a zero power transceiver that is designed to receive a low‐power RF signal at a fundamental frequency, double the frequency with high efficiency, and retransmit the second harmonic. The specific emphasis of this reported work was to demonstrate a means of imparting amplitude modulation onto the retransmitted harmonic in response to some environmental stimulus – in this case a DC bias voltage – to facilitate use of the transceiver in wireless sensing applications. The 1.3/2.6 GHz transceiver zero‐bias conversion efficiency is approximately 2% (−17 dB) at received input power levels in the micro‐Watt range. A change in the conversion efficiency of 10 dB per 100 mV is achieved through DC biasing of the multiplier.

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