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US 2002/0175878 A1Published application
Tunable matching circuit
AssigneeKyocera Wireless Corp.
InventorStanley S. Toncich
Life of this patent
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Abstract
The present invention provides for low loss tunable matching circuits at rf frequencies. Ferro-electric materials are used to produce low loss tunable capacitors and inductors for use in matching circuits.
Claims25
A communication device comprising:
- a capacitor and an inductor arranged as a matching circuit, the matching circuit having an impedance;
- a ferro-electric material positioned to adjust a value that is a member of the group consisting of a capacitance value of the capacitor and an inductance value of the inductor;
- a control line operably connected to the ferro-electric material;
- a control source electrically connected to the control line, the control source configured to transmit a control signal on the control line;
- wherein the ferro-electric material, responsive to the control signal, adjusts the value to change the impedance of the matching circuit.
2 more elements
Dependencies are inferred from the claim text.