Zero-power receiver

DWPI Title: Zero power signal receiver for commercial applications, has first and second pyroelectric devices, where second pyroelectric device is formed with secondary input resistor and pyroelectric element and for providing input to receiver stage
Abstract: An unpowered signal receiver and a method for signal reception detects and responds to very weak signals using pyroelectric devices as impedance transformers and/or demodulators. In some embodiments, surface acoustic wave devices (SAW) are also used. Illustrative embodiments include satellite and long distance terrestrial communications applications.
Use: Zero power signal receiver for commercial applications.
Advantage: The receiver uses multiple pyroelectric demodulator/filter pairs in cascaded stages downconverting to intermediate frequencies in effect to provide better signal detection and noise rejection using a single pyroelectric demodulator/filter stage.
Novelty: The receiver has a receiver stage for receiving input. The receiver stage is formed with a bandpass filter (91) electrically connected to first pyroelectric device (92) including an input resistor and first pyroelectric element thermally coupled to an input resistor. A detector receives a detector input from the receiver stage to produce output. Second pyroelectric device (95) includes a secondary input resistor and second pyroelectric element thermally coupled to the secondary input resistor. The second pyroelectric device provides the input to the receiver stage.
Filed: 8/20/2014
Application Number: US14464634A
Tech ID: SD 12469.0
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
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