Micropower RF transponder with superregenerative receiver and RF receiver with sampling mixer
Abstract
A micropower RF transponder employs a novel adaptation of the superregenerative receiver wherein the quench oscillator is external to the regenerative transistor. The quench oscillator applies an exponentially decaying waveform rather than the usual sinewave to achieve high sensitivity at microampere current levels. Further improvements include circuit simplifications for antenna coupling, extraction of the detected signal, and a low-voltage bias configuration that allows operation with less than a 1-volt rail voltage. The inventive transponder is expected to operate as long as the battery shelf life. 13 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of California (United States)
- OSTI Identifier:
- 504950
- Patent Number(s):
- 5630216
- Application Number:
- PAN: 8-300,765
- Assignee:
- Univ. of California, Oakland, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 13 May 1997
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; RADIO EQUIPMENT; DESIGN; SERVICE LIFE; ELECTRIC POTENTIAL; OSCILLATORS; TRANSISTORS
Citation Formats
McEwan, T E. Micropower RF transponder with superregenerative receiver and RF receiver with sampling mixer. United States: N. p., 1997.
Web.
McEwan, T E. Micropower RF transponder with superregenerative receiver and RF receiver with sampling mixer. United States.
McEwan, T E. Tue .
"Micropower RF transponder with superregenerative receiver and RF receiver with sampling mixer". United States.
@article{osti_504950,
title = {Micropower RF transponder with superregenerative receiver and RF receiver with sampling mixer},
author = {McEwan, T E},
abstractNote = {A micropower RF transponder employs a novel adaptation of the superregenerative receiver wherein the quench oscillator is external to the regenerative transistor. The quench oscillator applies an exponentially decaying waveform rather than the usual sinewave to achieve high sensitivity at microampere current levels. Further improvements include circuit simplifications for antenna coupling, extraction of the detected signal, and a low-voltage bias configuration that allows operation with less than a 1-volt rail voltage. The inventive transponder is expected to operate as long as the battery shelf life. 13 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 13 00:00:00 EDT 1997},
month = {Tue May 13 00:00:00 EDT 1997}
}
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