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Title: Variable frequency microwave furnace system

Abstract

A variable frequency microwave furnace system (10) designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity (34) for testing or other selected applications. The variable frequency microwave furnace system (10) includes a microwave signal generator (12) or microwave voltage-controlled oscillator (14) for generating a low-power microwave signal for input to the microwave furnace. A first amplifier (18) may be provided to amplify the magnitude of the signal output from the microwave signal generator (12) or the microwave voltage-controlled oscillator (14). A second amplifier (20) is provided for processing the signal output by the first amplifier (18). The second amplifier (20) outputs the microwave signal input to the furnace cavity (34). In the preferred embodiment, the second amplifier (20) is a traveling-wave tube (TWT). A power supply (22) is provided for operation of the second amplifier (20). A directional coupler (24) is provided for detecting the direction of a signal and further directing the signal depending on the detected direction. A first power meter (30) is provided for measuring the power delivered to the microwave furnace (32). A second power meter (26) detects the magnitude of reflected power. Reflected power is dissipated in the reflectedmore » power load (28).« less

Inventors:
 [1];  [2]
  1. (Clinton, TN)
  2. (Oak Ridge, TN)
Issue Date:
Research Org.:
LOCKHEED MARTIN ENRGY SYST INC
OSTI Identifier:
869358
Patent Number(s):
5321222
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
variable; frequency; microwave; furnace; 10; designed; allow; modulation; microwaves; introduced; cavity; 34; testing; selected; applications; signal; generator; 12; voltage-controlled; oscillator; 14; generating; low-power; input; amplifier; 18; provided; amplify; magnitude; output; 20; processing; outputs; preferred; embodiment; traveling-wave; tube; twt; power; supply; 22; operation; directional; coupler; 24; detecting; direction; directing; depending; detected; meter; 30; measuring; delivered; 32; 26; detects; reflected; dissipated; load; 28; signal input; signal depending; signal output; furnace cavity; microwaves introduced; allow modulation; power load; directional coupler; microwave signal; frequency microwave; variable frequency; preferred embodiment; power supply; signal generator; power meter; power delivered; reflected power; microwave furnace; power microwave; wave tube; wave signal; selected applications; controlled oscillator; /219/315/363/

Citation Formats

Bible, Don W., and Lauf, Robert J. Variable frequency microwave furnace system. United States: N. p., 1994. Web.
Bible, Don W., & Lauf, Robert J. Variable frequency microwave furnace system. United States.
Bible, Don W., and Lauf, Robert J. Sat . "Variable frequency microwave furnace system". United States. https://www.osti.gov/servlets/purl/869358.
@article{osti_869358,
title = {Variable frequency microwave furnace system},
author = {Bible, Don W. and Lauf, Robert J.},
abstractNote = {A variable frequency microwave furnace system (10) designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity (34) for testing or other selected applications. The variable frequency microwave furnace system (10) includes a microwave signal generator (12) or microwave voltage-controlled oscillator (14) for generating a low-power microwave signal for input to the microwave furnace. A first amplifier (18) may be provided to amplify the magnitude of the signal output from the microwave signal generator (12) or the microwave voltage-controlled oscillator (14). A second amplifier (20) is provided for processing the signal output by the first amplifier (18). The second amplifier (20) outputs the microwave signal input to the furnace cavity (34). In the preferred embodiment, the second amplifier (20) is a traveling-wave tube (TWT). A power supply (22) is provided for operation of the second amplifier (20). A directional coupler (24) is provided for detecting the direction of a signal and further directing the signal depending on the detected direction. A first power meter (30) is provided for measuring the power delivered to the microwave furnace (32). A second power meter (26) detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load (28).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}

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