TUNABLE IMPEDANCE MATCHING CIRCUIT
First Claim
1. A tunable impedance matching circuit, comprising:
- a first terminal coupled to a signal source;
a second terminal coupled to an antenna, wherein the tunable impedance matching circuit is adapted for matching the signal source with an impedance of the antenna;
a series path coupled between the first terminal and the second terminal and comprising a first tunable capacitor and at least one tunable inductor; and
two shunt paths, one of which being coupled between the first terminal and a ground end, and the other of which being coupled between the second terminal and the ground end, wherein each of the shunt paths comprises a second tunable capacitor.
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Accused Products
Abstract
A tunable impedance matching circuit is provided for matching a signal source to an impedance of an antenna. The tunable impedance matching circuit includes two terminals, a series path, and two shunt paths. The first terminal is coupled to the signal source, and the second terminal is coupled to the antenna. The series path is coupled between the first terminal and the second terminal and includes a first tunable capacitor and at least one tunable inductor. One of the two shunt paths is coupled between the first terminal and a ground end, and the other one of the two shunt paths is coupled between the second terminal and the ground end. Each of the shunt paths includes a second tunable capacitor.
11 Citations
10 Claims
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1. A tunable impedance matching circuit, comprising:
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a first terminal coupled to a signal source; a second terminal coupled to an antenna, wherein the tunable impedance matching circuit is adapted for matching the signal source with an impedance of the antenna; a series path coupled between the first terminal and the second terminal and comprising a first tunable capacitor and at least one tunable inductor; and two shunt paths, one of which being coupled between the first terminal and a ground end, and the other of which being coupled between the second terminal and the ground end, wherein each of the shunt paths comprises a second tunable capacitor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification