skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High power water load for microwave and millimeter-wave radio frequency sources

Abstract

A high power water load for microwave and millimeter wave radio frequency sources has a front wall including an input port for the application of RF power, a cylindrical dissipation cavity lined with a dissipating material having a thickness which varies with depth, and a rear wall including a rotating reflector for the reflection of wave energy inside the cylindrical cavity. The dissipation cavity includes a water jacket for removal of heat generated by the absorptive material coating the dissipation cavity, and this absorptive material has a thickness which is greater near the front wall than near the rear wall. Waves entering the cavity reflect from the rotating reflector, impinging and reflecting multiple times on the absorptive coating of the dissipation cavity, dissipating equal amounts of power on each internal reflection.

Inventors:
 [1];  [2];  [3];  [1]
  1. (Saratoga, CA)
  2. (Palo Alto, CA)
  3. (Sunnyvale, CA)
Publication Date:
Research Org.:
Calabazas Creek Research (Saratoga, CA)
OSTI Identifier:
872506
Patent Number(s):
US 5949298
Assignee:
Calabazas Creek Research (Saratoga, CA) OAK
DOE Contract Number:  
FG03-95ER81938
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
power; water; load; microwave; millimeter-wave; radio; frequency; sources; millimeter; wave; front; wall; including; input; application; rf; cylindrical; dissipation; cavity; lined; dissipating; material; thickness; varies; depth; rear; rotating; reflector; reflection; energy; inside; jacket; removal; heat; generated; absorptive; coating; near; waves; entering; reflect; impinging; reflecting; multiple; times; equal; amounts; internal; cylindrical cavity; internal reflection; water jacket; radio frequency; rf power; heat generated; frequency source; wave energy; rear wall; millimeter wave; water load; sorptive material; equal amounts; front wall; power water; millimeter-wave radio; frequency sources; wave radio; /333/

Citation Formats

Ives, R. Lawrence, Mizuhara, Yosuke M., Schumacher, Richard V., and Pendleton, Rand P. High power water load for microwave and millimeter-wave radio frequency sources. United States: N. p., 1999. Web.
Ives, R. Lawrence, Mizuhara, Yosuke M., Schumacher, Richard V., & Pendleton, Rand P. High power water load for microwave and millimeter-wave radio frequency sources. United States.
Ives, R. Lawrence, Mizuhara, Yosuke M., Schumacher, Richard V., and Pendleton, Rand P. Fri . "High power water load for microwave and millimeter-wave radio frequency sources". United States. https://www.osti.gov/servlets/purl/872506.
@article{osti_872506,
title = {High power water load for microwave and millimeter-wave radio frequency sources},
author = {Ives, R. Lawrence and Mizuhara, Yosuke M. and Schumacher, Richard V. and Pendleton, Rand P.},
abstractNote = {A high power water load for microwave and millimeter wave radio frequency sources has a front wall including an input port for the application of RF power, a cylindrical dissipation cavity lined with a dissipating material having a thickness which varies with depth, and a rear wall including a rotating reflector for the reflection of wave energy inside the cylindrical cavity. The dissipation cavity includes a water jacket for removal of heat generated by the absorptive material coating the dissipation cavity, and this absorptive material has a thickness which is greater near the front wall than near the rear wall. Waves entering the cavity reflect from the rotating reflector, impinging and reflecting multiple times on the absorptive coating of the dissipation cavity, dissipating equal amounts of power on each internal reflection.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1999},
month = {Fri Jan 01 00:00:00 EST 1999}
}

Patent:

Save / Share: