Micropower RF transponder with superregenerative receiver and RF receiver with sampling mixer
Abstract
A micropower RF transdponder 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.
- Inventors:
-
- Livermore, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 870952
- Patent Number(s):
- 5630216
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03D - DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04B - TRANSMISSION
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- micropower; rf; transponder; superregenerative; receiver; sampling; mixer; transdponder; employs; novel; adaptation; quench; oscillator; external; regenerative; transistor; applies; exponentially; decaying; waveform; sinewave; achieve; sensitivity; microampere; current; levels; improvements; circuit; simplifications; antenna; coupling; extraction; detected; signal; low-voltage; bias; configuration; allows; operation; 1-volt; rail; voltage; inventive; expected; operate; battery; shelf; life; voltage bias; detected signal; shelf life; micropower rf; current level; current levels; superregenerative receiver; exponentially decaying; rf receiver; allows operation; /455/329/
Citation Formats
McEwan, Thomas E. Micropower RF transponder with superregenerative receiver and RF receiver with sampling mixer. United States: N. p., 1997.
Web.
McEwan, Thomas E. Micropower RF transponder with superregenerative receiver and RF receiver with sampling mixer. United States.
McEwan, Thomas E. Wed .
"Micropower RF transponder with superregenerative receiver and RF receiver with sampling mixer". United States. https://www.osti.gov/servlets/purl/870952.
@article{osti_870952,
title = {Micropower RF transponder with superregenerative receiver and RF receiver with sampling mixer},
author = {McEwan, Thomas E},
abstractNote = {A micropower RF transdponder 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1997},
month = {Wed Jan 01 00:00:00 EST 1997}
}
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.