RF Coupler Controllable with a Fluid Circuit

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$100,000.00
Award Year:
2009
Program:
SBIR
Phase:
Phase I
Contract:
DE-FG02-09ER85334
Agency Tracking Number:
90016
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Duly Research Inc.
1912 MacArthur Street, Rancho Palos Verdes, CA, 90275
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
175302165
Principal Investigator:
Ping Chen
Dr.
(310) 548-7123
davidyu@pacbell.net
Business Contact:
David Yu
Dr.
(310) 548-7123
davidyu@pacbell.net
Research Institution:
n/a
Abstract
Adjustable input couplers for both normal conducting (NC) and superconducting (SC) RF cavities are among the highest priorities for advanced accelerators at DOE user facilities. However, existing adjustable couplers are severely limited by the range of coupling coefficients, as well as by their size and complexity. This project will undertake a novel approach for designing RF couplers, which will impact the variation of the standing wave ratio (SWR) by more than an order of magnitude during operation. The design is based on the introduction of capillary dielectric tubes or fluid-filled volumes adjacent to, but separated by window(s) from, the coupler. The proposed method of in situ adjustment of the external Q will provide a simple and flexible means of meeting the performance requirements of a large variety of vacuum electronics devices. Commercial Applications and other Benefits as described by the awardee If successful, the new technology should significantly improve the performance, and provide enhanced flexibility, of heavily loaded accelerating structures and high power RF sources. Facilities and projects ¿ such as energy recovery linacs (ERLs), upgrades of existing machines such as CEBAF and APS, and future particle colliders (such as the ILC) ¿ would be greatly impacted.

* information listed above is at the time of submission.

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