Low loss tuners
OwnerStephen K. Remillardinventor
Life of this patent
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Abstract
Low loss tuners including a conductive tuning element and an electrical insulator may be used in conjunction with superconducting or any other resonant elements that form couplerions of RF filters. The low loss tuners prevent currents induced on the conductive tuning element from shorting to ground and causing heating and Q degradation in the RF filter.
Claims30
A tuning mechanism for use in a filter including cavity having a plurality of walls and a resonator disposed within the cavity, the tuning mechanism comprising:
- a conductive tuning element adapted to be inserted into the cavity in a location proximate to the resonator, thereby perturbing an electric field of the resonator;
- and
- an electrical insulator mounted to the conductive tuning element and adapted to be adjustably mounted to one of the plurality of walls to hold the conductive tuning element in the location proximate to the resonator.
A tuning mechanism for use in a filter including cavity having a plurality of walls and a resonator disposed within the cavity, the tuning mechanism comprising:
- a conductive tuning element adapted to be inserted into the cavity in a location proximate to the resonator;
- an electrical insulator mounted to the conductive tuning element to hold the conductive tuning element in the location proximate to the resonator;
- and
- an adjustment element coupled to the electrical insulator and adapted to be adjustably mounted to one of the plurality of walls to hold the conductive tuning element in the location proximate to the resonator.
A tuning mechanism for use in a superconducting filter including cavity having a plurality of walls and a superconducting resonator disposed within the cavity, the tuning mechanism comprising:
- a conductive tuning element having first and second ends and adapted to be inserted into the cavity in a location proximate to the superconducting resonator;
- an electrical insulator having first and second ends, wherein the first end of the electrical insulator is threaded into the second end of the conductive tuning element to hold the conductive tuning element in the location proximate to the superconducting resonator;
- and
- a substantially cylindrically shaped adjustment element having first and second ends, wherein the second end of the electrical insulator is threaded into the first end of the adjustment element and the adjustment element is adapted to be threaded into one of the plurality of walls to hold the conductive tuning element in the location proximate to the superconducting resonator.
Dependencies are inferred from the claim text.