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US 10,985,435 B2Granted
Tunable probe for high-performance cross-coupled RF filters
AssigneeThe Boeing Company
InventorTai Pham
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Abstract
A tunable probe includes a first resonator, a second resonator spaced from the first resonator, and a cross-couple extending from the first resonator to the second resonator. The cross-couple includes a first substrate and a second substrate disposed between the first and second resonator to create a capacitance between the first and second resonators. The cross-couple further includes a wire connecting the first and second substrates and a dielectric surrounding the wire.
Claims20
A tunable filter comprising:
- a first resonator;
- a second resonator spaced from the first resonator;
- and
- a cross-couple extending from the first resonator to the second resonator, the cross-couple comprising:
- a first substrate and a second substrate, the first and second substrates disposed between the first and second resonators to create a capacitance between the first and second resonators, the first and second substrates having a material permittivity (Er) between 9.5 and 10.0;
- a wire connecting the first and second substrates;
- and
- a dielectric surrounding the wire.
5 more elements
A cross-couple for a tunable filter, the cross-couple comprising:
- a first substrate and a second substrate, the first and second substrates having both a first portion and a second portion, the second portion comprising and alumina substrate;
- a wire connecting the first portion of the first and second substrates;
- and
- a dielectric surrounding the wire.
1 more element
A method of tuning a tunable filter, the method comprising:
- disposing a cross-couple between a first resonator and a second resonator, the cross-couple comprising:
- a first substrate and a second substrate, the first and second substrates disposed between the first and second resonators to create a capacitance between the first and second resonators, the first and second substrates having a material permittivity (Er) between 9.5 and 10.0;
- a wire connecting each of the first and second substrates;
- and
- a dielectric surrounding the wire;
- adjusting a position of the cross-couple along a lateral axis between the first and second resonators;
- and
- bonding the cross-couple in place between the first and second resonators.
5 more elements
Dependencies are inferred from the claim text.