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Title: RF waveguide phase-directed power combiners

High power RF phase-directed power combiners include magic H hybrid and/or superhybrid circuits oriented in orthogonal H-planes and connected using E-plane bends and/or twists to produce compact 3D waveguide circuits, including 8.times.8 and 16.times.16 combiners. Using phase control at the input ports, RF power can be directed to a single output port, enabling fast switching between output ports for applications such as multi-angle radiation therapy.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1354793
Assignee:
The Board of Trustees of the Leland Stanford Junior University SLAC
Patent Number(s):
9,640,851
Application Number:
14/722,048
Contract Number:
AC02-76SF00515
Resource Relation:
Patent File Date: 2015 May 26
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 24 POWER TRANSMISSION AND DISTRIBUTION

Other works cited in this record:

Wave Guide Magic-Tee Junctions
patent, July 1957

Direct-Coupled Step-Twist Junction Waveguide Filter
patent, February 1966

Microwave power amplifier/combiner
patent, April 1985

Rotary microwave joint device
patent, July 1988

Electromagnetic energy shield
patent, September 1989

Waveguide coupling networks
patent, April 1992

Integrated waveguide combiner
patent, July 1993

Satellite communications system with the zero-db coupler
patent, December 1993

Vehicle locking means with wheel clamps
patent, March 1998

Compact four-way waveguide power divider
patent, June 2002

Butler matrix
patent, August 2014

In-phase H-plane waveguide T-junction with E-plane septum
patent, June 2015

Radio frequency comparator waveguide system
patent, August 2015

Power division and recombination network with internal signal adjustment
patent, May 2016

Enhanced hybrid-tee coupler
patent, June 2016

Multiple way waveguide power module
patent, July 2016

Butler Matrix And Multi-Port Amplifier Having The Same
patent-application, May 2012

Active and Passive RF Components for High-Power Systems
conference, July 2002
  • Tantawi, Sami G.; Nantista, Christopher D.
  • AIP Conference Proceedings, Vol. 625, Issue 1
  • DOI: 10.1063/1.1498186

Multimoded rf delay line distribution system for the Next Linear Collider
journal, March 2002
  • Tantawi, S. G.; Nantista, C.; Kroll, N.
  • Physical Review Accelerators and Beams, Vol. 5, Issue 3, Article No. 032001
  • DOI: 10.1103/PhysRevSTAB.5.032001

A compact, planar, eight-port waveguide power divider/combiner: the cross potent superhybrid
journal, January 2000
  • Nantista, C.D.; Tantawi, S.G.
  • IEEE Microwave and Guided Wave Letters, Vol. 10, Issue 12, p. 520-522
  • DOI: 10.1109/75.895089

Planar waveguide hybrids for very high power RF
conference, March 1999

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