Coupler for coupling gyrotron whispering gallery mode RF into HE11 waveguide
Abstract
A cylindrical waveguide with a mode converter transforms a whispering gallery mode from a gyrotron cylindrical waveguide with a helical cut launch edge to a quasi-Gaussian beam suitable for conveyance through a corrugated waveguide. This quasi-Gaussian beam is radiated away from the waveguide using a spiral cut launch edge, which is in close proximity to a first mode converting reflector. The first mode converting reflector is coupled to a second mode converting reflector which provides an output free-space HE11 mode wave suitable for direct coupling into a corrugated waveguide. The radiated beam produced at the output of the second mode converting reflector is substantially circular.
- Inventors:
- Issue Date:
- Research Org.:
- Calabazas Creek Research, Inc., San Mateo, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1170738
- Patent Number(s):
- 8963424
- Application Number:
- 13/016,995
- Assignee:
- Calabazas Creek Research, Inc. (San Mateo, CA)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- DOE Contract Number:
- FG02-05ER84181
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2011 Jan 29
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS
Citation Formats
Neilson, Jeffrey M. Coupler for coupling gyrotron whispering gallery mode RF into HE11 waveguide. United States: N. p., 2015.
Web.
Neilson, Jeffrey M. Coupler for coupling gyrotron whispering gallery mode RF into HE11 waveguide. United States.
Neilson, Jeffrey M. Tue .
"Coupler for coupling gyrotron whispering gallery mode RF into HE11 waveguide". United States. https://www.osti.gov/servlets/purl/1170738.
@article{osti_1170738,
title = {Coupler for coupling gyrotron whispering gallery mode RF into HE11 waveguide},
author = {Neilson, Jeffrey M},
abstractNote = {A cylindrical waveguide with a mode converter transforms a whispering gallery mode from a gyrotron cylindrical waveguide with a helical cut launch edge to a quasi-Gaussian beam suitable for conveyance through a corrugated waveguide. This quasi-Gaussian beam is radiated away from the waveguide using a spiral cut launch edge, which is in close proximity to a first mode converting reflector. The first mode converting reflector is coupled to a second mode converting reflector which provides an output free-space HE11 mode wave suitable for direct coupling into a corrugated waveguide. The radiated beam produced at the output of the second mode converting reflector is substantially circular.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {2}
}
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