Antenna, radio device, method of designing antenna, and method of measuring operating frequency of antenna
First Claim
1. An antenna comprising:
- a first conductive layer having plural elements disposed adjacently to and distanced from each other on a same plane;
a second conductive layer disposed at a predetermined distance from the first conductive layer via a dielectric; and
an LC resonance circuit comprising connection for respectively electrically connecting the elements of the first conductive layer and the second conductive layer,wherein the LC resonance circuit is constructed to take a resonance state in which impedance is increased in an operating frequency of the antenna,wherein a power feeding section is provided in each of any two adjacent elements of the plural elements,wherein, during transmission, power is fed to the power feeding sections so that signals of the operating frequency are in an opposite phase relation to each other, andwherein, during reception, signals of the operating frequency inputted to the two elements are outputted in an opposite phase relation to each other from the power feeding sections.
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Accused Products
Abstract
An antenna comprises a first conductive layer, a second conductive layer and an LC resonance circuit. The first conductive layer has plural elements and is disposed adjacently to each other. The second conductive layer is disposed at a predetermined distance from the first conductive layer via a dielectric substrate. The LC resonance circuit comprises connection for electrically connecting the elements and the second conductive layer. The LC resonance circuit takes a resonance state in which impedance becomes high in the operating frequency of the antenna. Of the plural elements, a power feeding section is provided in each of any two adjacent elements. Power is fed to the power feeding sections during transmission so that signals of the operating frequency are opposite in phase, and signals of the operating frequency inputted to the antenna are outputted in opposite phase from the power feeding sections during reception.
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Citations
19 Claims
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1. An antenna comprising:
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a first conductive layer having plural elements disposed adjacently to and distanced from each other on a same plane; a second conductive layer disposed at a predetermined distance from the first conductive layer via a dielectric; and an LC resonance circuit comprising connection for respectively electrically connecting the elements of the first conductive layer and the second conductive layer, wherein the LC resonance circuit is constructed to take a resonance state in which impedance is increased in an operating frequency of the antenna, wherein a power feeding section is provided in each of any two adjacent elements of the plural elements, wherein, during transmission, power is fed to the power feeding sections so that signals of the operating frequency are in an opposite phase relation to each other, and wherein, during reception, signals of the operating frequency inputted to the two elements are outputted in an opposite phase relation to each other from the power feeding sections. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification