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Title: 140 GHz pulsed fourier transform microwave spectrometer

Abstract

A high frequency energy pulsing system suitable for use in a pulsed microwave spectrometer (10), including means (11, 19) for generating a high frequency carrier signal, and means (12) for generating a low frequency modulating signal. The carrier signal is continuously fed to a modulator (20) and the modulating signal is fed through a pulse switch (23) to the modulator. When the pulse switch (23) is on, the modulator (20) will produce sideband signals above and below the carrier signal frequency. A frequency-responsive device (31) is tuned to one of the sideband signals and away from the carrier frequency so that the high frequency energization of the frequency-responsive device (31) is controlled by the pulse switch (23).

Inventors:
 [1];  [2]
  1. Oakland, CA
  2. Moraga, CA
Issue Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
OSTI Identifier:
866402
Patent Number(s):
4703273
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
140; ghz; pulsed; fourier; transform; microwave; spectrometer; frequency; energy; pulsing; suitable; 10; including; means; 11; 19; generating; carrier; signal; 12; modulating; continuously; fed; modulator; 20; pulse; switch; 23; produce; sideband; signals; below; frequency-responsive; device; 31; tuned; energization; controlled; including means; frequency carrier; continuously fed; pulsed microwave; carrier signal; fourier transform; frequency energy; pulse switch; signal frequency; responsive device; microwave spectrometer; frequency modulating; /324/332/

Citation Formats

Kolbe, William F, and Leskovar, Branko. 140 GHz pulsed fourier transform microwave spectrometer. United States: N. p., 1987. Web.
Kolbe, William F, & Leskovar, Branko. 140 GHz pulsed fourier transform microwave spectrometer. United States.
Kolbe, William F, and Leskovar, Branko. Thu . "140 GHz pulsed fourier transform microwave spectrometer". United States. https://www.osti.gov/servlets/purl/866402.
@article{osti_866402,
title = {140 GHz pulsed fourier transform microwave spectrometer},
author = {Kolbe, William F and Leskovar, Branko},
abstractNote = {A high frequency energy pulsing system suitable for use in a pulsed microwave spectrometer (10), including means (11, 19) for generating a high frequency carrier signal, and means (12) for generating a low frequency modulating signal. The carrier signal is continuously fed to a modulator (20) and the modulating signal is fed through a pulse switch (23) to the modulator. When the pulse switch (23) is on, the modulator (20) will produce sideband signals above and below the carrier signal frequency. A frequency-responsive device (31) is tuned to one of the sideband signals and away from the carrier frequency so that the high frequency energization of the frequency-responsive device (31) is controlled by the pulse switch (23).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {1}
}

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