Antenna matching circuit, mobile communication device including antenna matching circuit, and dielectric antenna including antenna matching circuit
First Claim
1. An antenna matching circuit comprising a parallel resonant section which is connected to a radiation element constituting an antenna, wherein said parallel resonant section includes a series resonant portion composed of an inductance component and a capacitance component.
1 Assignment
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Accused Products
Abstract
In an antenna matching circuit including a parallel resonant section connected to a radiation element constituting an antenna, the parallel resonant section includes a series resonant portion composed of an inductance component and a capacitance component. The series resonant portion realizes antenna matching and band widening. The parallel resonant section can be inserted in a feeder line connected to the radiation element or inserted in a GND line connected to the radiation element.
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Citations
19 Claims
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1. An antenna matching circuit comprising a parallel resonant section which is connected to a radiation element constituting an antenna,
wherein said parallel resonant section includes a series resonant portion composed of an inductance component and a capacitance component.
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4. A communication device comprising a radiation element constituting an antenna, an antenna matching circuit connected to said radiation element, and a power feeding means for feeing power to said radiation element,
wherein said matching circuit is formed by a parallel resonant circuit which includes a series resonant portion composed of an inductance component and a capacitance component.
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7. An antenna comprising a parallel resonant type matching circuit connected to a radiation element,
wherein said matching circuit includes a series resonant portion composed of an inductance component and a capacitance component.
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10. A dielectric antenna in which a radiation element pattern and a parallel resonant type matching section connected to said radiation element pattern are formed on a dielectric substrate,
wherein said matching section comprises: -
a series resonant portion composed of a first equivalent inductance pattern and a capacitive coupling portion; and
a second equivalent inductance pattern connected in parallel with said series resonant portion. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification