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US 2009/0267705 A1Published application
Tunable matching network circuit topology selection
AssigneeWispry, Inc.
InventorArthur Sherman Morris, III
Life of this patent
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Abstract
Tunable matching network topologies are disclosed. A network in accordance with the present invention comprises at least one inductor, and at least one tunable capacitor, in parallel with the inductor, wherein the at least one tunable capacitor tunes the at least one inductor self-resonant frequency.
Claims14
A tunable network, comprising:
- at least one inductor;
- and
- at least one tunable capacitor, in parallel with the inductor, wherein the at least one tunable capacitor tunes a self-resonant frequency and a reactive impedance of the at least one inductor.
A tunable matching network, comprising:
- a first inductor coupled to a first port and a first node;
- a second inductor, coupled between the first node and a second node;
- a first capacitor, coupled between the first node and a ground node;
- a second capacitor, coupled between the second node and the ground node;
- a third inductor, coupled between the second node and a third node;
- a third capacitor, coupled between the third node and the ground node;
- a fourth inductor, coupled between the third node and a second port;
- and
- a fourth capacitor, coupled between the first node and the third node, wherein the fourth capacitor is a variable capacitor, wherein the fourth capacitor tunes a self-resonant frequency of the series combination of the first and second inductors.
6 more elements
A tunable network, comprising:
- a first inductor, a second inductor, and a third inductor, wherein the first inductor, second inductor, and third inductor are connected in series;
- a first capacitor, coupled between a series connection of the first inductor and the second inductor and ground;
- a second capacitor, coupled between a series connection of the second inductor and the third inductor and ground;
- and a third capacitor, in parallel with the second inductor, wherein the third capacitor tunes a self-resonant frequency of the second inductor.
1 more element
Dependencies are inferred from the claim text.