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Title: RF waveguide phase-directed power combiners

Abstract

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:
; ;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1354793
Patent Number(s):
9,640,851
Application Number:
14/722,048
Assignee:
The Board of Trustees of the Leland Stanford Junior University SLAC
DOE Contract Number:
AC02-76SF00515
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 May 26
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 24 POWER TRANSMISSION AND DISTRIBUTION

Citation Formats

Nantista, Christopher D., Dolgashev, Valery A., and Tantawi, Sami G.. RF waveguide phase-directed power combiners. United States: N. p., 2017. Web.
Nantista, Christopher D., Dolgashev, Valery A., & Tantawi, Sami G.. RF waveguide phase-directed power combiners. United States.
Nantista, Christopher D., Dolgashev, Valery A., and Tantawi, Sami G.. 2017. "RF waveguide phase-directed power combiners". United States. doi:. https://www.osti.gov/servlets/purl/1354793.
@article{osti_1354793,
title = {RF waveguide phase-directed power combiners},
author = {Nantista, Christopher D. and Dolgashev, Valery A. and Tantawi, Sami G.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2017,
month = 5
}

Patent:

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  • The various technologies presented herein relate to waveguide dividers and waveguide combiners for application in radar systems, wireless communications, etc. Waveguide dividers-combiners can be manufactured in accordance with custom dimensions, as well as in accordance with waveguide standards such that the input and output ports are of a defined dimension and have a common impedance. Various embodiments are presented which can incorporate one or more septum(s), one or more pairs of septums, an iris, an input matching region, a notch located on the input waveguide arm, waveguide arms having stepped transformer regions, etc. The various divider configurations presented herein canmore » be utilized in high fractional bandwidth applications, e.g., a fractional bandwidth of about 30%, and RF applications in the Ka frequency band (e.g., 26.5-40 GHz).« less
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