Tunable matching network circuit topology selection
First Claim
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1. A tunable network, comprising:
- two inductors connected in series;
a shunt capacitor coupled between a series connection of the two inductors and a ground; and
at least one tunable capacitor, in parallel with the two inductors, wherein the at least one tunable capacitor tunes a self-resonant frequency and a reactive impedance of the two inductors.
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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.
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Citations
21 Claims
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1. A tunable network, comprising:
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two inductors connected in series; a shunt capacitor coupled between a series connection of the two inductors and a ground; and at least one tunable capacitor, in parallel with the two inductors, wherein the at least one tunable capacitor tunes a self-resonant frequency and a reactive impedance of the two inductors. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A tunable matching network, comprising:
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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 in parallel with the second inductor and the third inductor 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 second and third inductors. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A tunable network, comprising:
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a first inductor, a second inductor, a third inductor, and a fourth inductor, wherein the first inductor, second inductor, third inductor, and fourth inductor are connected in series; a first capacitor, coupled between a series connection of the first inductor and the second inductor and a ground; a second capacitor, coupled between a series connection of the second inductor and the third inductor and the ground; a third capacitor, in parallel with the second inductor, wherein the third capacitor tunes a self-resonant frequency of the second inductor; a fourth capacitor coupled between a series connection of the third inductor and the fourth inductor and the ground; a fifth capacitor coupled in parallel with the third inductor, wherein the fifth capacitor tunes a self-resonant frequency of the third inductor; and a sixth capacitor coupled in parallel with the third capacitor and the fifth capacitor. - View Dependent Claims (15, 16, 17)
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18. A tunable network comprising;
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a first inductor, a second inductor, a third inductor, and a fourth inductor, wherein the first inductor, second inductor, third inductor, and fourth inductor are connected in series; a first capacitor, coupled between a series connection of the first inductor and the second inductor and a ground; a second capacitor, coupled between a series connection of the second inductor and the third inductor and the ground; a third capacitor, in parallel with a combination of the second inductor and the third inductor, wherein the third capacitor tunes a self-resonant frequency of the second inductor and the third inductor; and a fourth capacitor coupled between a series connection of the third inductor and the fourth inductor and the ground. - View Dependent Claims (19, 20, 21)
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Specification