Antenna unit and digital television receiver
First Claim
1. An antenna device comprising a conductive substrate, two or more antenna elements of different lengths located in a proximity of said conductive substrate, and a coil or zigzag conductor connected to a common connection at an end of each of said antenna elements, wherein the other end of said coil or zigzag conductor is connected to said conductive substrate for grounding.
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Accused Products
Abstract
The present invention provides an antenna device comprising a conductive substrate and an antenna element located in the proximity of the conductive substrate, in which a portion of the antenna element is formed of a coil or zigzag conductor and an end of the antenna element is connected to the conductive substrate for grounding. In addition, the coil or zigzag conductor is formed at an end of the antenna element and the coil or zigzag conductor and the other end of the antenna element are connected together on an insulator provided on the conductive substrate.
257 Citations
33 Claims
- 1. An antenna device comprising a conductive substrate, two or more antenna elements of different lengths located in a proximity of said conductive substrate, and a coil or zigzag conductor connected to a common connection at an end of each of said antenna elements, wherein the other end of said coil or zigzag conductor is connected to said conductive substrate for grounding.
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4. An antenna device comprising a conductive substrate, an antenna element located in a proximity of said conductive substrate, and a conductive case provided between said antenna element and said conductive substrate and having a through-hole in a certain place, wherein
an end of said antenna element is connected to said conductive case for grounding, a feeding section is connected to one of a plurality of insulators provided on said conductive substrate within said conductive case by using said through-hole, and circuit components are connected between said plurality of insulators.
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5. An antenna device comprising
a planar antenna having at least one bend or curve and an end connected to a conductive substrate and a cylindrical antenna located in a proximity of said planar antenna, wherein an end of said planar antenna is connected to said conductive substrate at a side of said planar antenna farther from said cylindrical antenna, and wherein a feeding section for said planar antenna and a feeding section for said cylindrical antenna are coupled to a single feeding section through a mixer.
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9. An antenna device comprising
a planar antenna having at least one antenna element having at least one bend or curve and an end connected to a conductive substrate and a printed antenna located in a proximity of said planar antenna and having a zigzag conductive pattern formed on a printed circuit board, wherein said planar antenna and said printed antenna exist substantially on the same plane, and wherein said printed antenna is formed into a three-dimensional shape through one or more bends or curves.
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30. An antenna device comprising
a conductive substrate and an antenna element located in a proximity of said conductive substrate, wherein a portion of said antenna element is formed of a coil or zigzag conductor and an end of said antenna element is connected to said conductive substrate for grounding, wherein said coil or zigzag conductor is formed at said end of said antenna element and said coil or zigzag conductor and another portion of said antenna element are connected together on an insulator provided on said conductive substrate, and wherein said coil or zigzag conductor is divided into two pieces, said two pieces are connected together on an insulator provided on said conductive substrate, and a feeding section is also connected at where said two pieces are connected.
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31. An antenna device comprising
a planar antenna having at least one antenna element having at least one bend or curve and an end connected to a conductive substrate, and a cylindrical antenna located in a proximity of said planar antenna, wherein an end of said planar antenna is connected to said conductive substrate at a side of said planar antenna closer to said cylindrical antenna, and wherein a feeding section for said planar antenna and a feeding section for said cylindrical antenna are coupled to a single feeding section through a mixer.
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32. An antenna device comprising
a cylindrical antenna provided in a proximity of a conductive substrate and a planar antenna provided between said cylindrical antenna and said conductive substrate and having at least one antenna element with at least one bend or curve and an end connected to a conductive substrate, wherein a feeding section for said planar antenna and a feeding section for said cylindrical antenna are coupled to a single feeding section through a mixer.
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33. An antenna device comprising
a planar antenna having at least one antenna element with at least one bend or curve and a printed antenna having a zigzag conductive pattern, both antennas being formed in a proximity of each other on the same board, a conductive plate connected to an end of said antenna element and corresponding to said planar antenna, and an insulation member which insulates said conductive plate from a conductive substrate which is larger than said planar antenna and said printed antenna, wherein said planar antenna, said printed antenna, and said conductive plate are capable to turn together to a direction perpendicular to the plane of said conductive substrate, wherein said planar antenna has a plurality of antenna elements and said plurality of antenna elements are connected to a single feeding section.
Specification