Dielectric antenna, antenna-mounted substrate, and mobile communication machine having them therein
First Claim
1. A dielectric antenna, comprising:
- a dielectric base having an antenna forming face in a rectangular shape;
a linear element extending on the antenna forming face adjacently only a periphery of the antenna forming face;
at least one bending portion included in said linear element;
a power supply terminal connected to a base end portion of said linear element;
a linear conductor branching in the vicinity of the base end portion of said linear element on the antenna forming face; and
a ground terminal connected to a tip of said linear conductor.
1 Assignment
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Accused Products
Abstract
On an antenna forming face (9) in a rectangular shape which a dielectric base (7A) has, a linear element (11A) is provided adjacently only peripheries (9a, 9b, 9c, and 9d) of the antenna forming face (9). From the linear element (11A), a linear conductor (25) for matching impedance branches. Since the linear element is adjacent to only the peripheries (9a, 9b, 9c, and 9d) of the antenna forming face (9), portions of the linear element (11A) do not become adjacent to each other. Accordingly, mutual interference which easily occurs when the portions of the linear element (11A) are adjacent to each other does not occur, so that decrease of radiation efficiency of the dielectric antenna (1A) and hindrance to widening a band thereof can be eliminated as much as possible.
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Citations
28 Claims
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1. A dielectric antenna, comprising:
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a dielectric base having an antenna forming face in a rectangular shape;
a linear element extending on the antenna forming face adjacently only a periphery of the antenna forming face;at least one bending portion included in said linear element;
a power supply terminal connected to a base end portion of said linear element;a linear conductor branching in the vicinity of the base end portion of said linear element on the antenna forming face; and a ground terminal connected to a tip of said linear conductor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A dielectric antenna, comprising:
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a dielectric base having an antenna forming face; a linear element extending on the antenna forming face adjacent to a periphery of the antenna forming face and is capable of resonating at a first resonance frequency; a power supply terminal connected to a base end portion of said linear element; a linear conductor branching in the vicinity of the base end portion of said linear element; a ground terminal connected to a tip of said linear conductor; and
a linear sub-element formed on the antenna forming face and is capable of resonating at a second resonance frequency which is different from the first resonance frequency,wherein a base end of said linear sub-element is connected to a mid-portion of said linear element through a capacitor structure.
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19. A mobile communication device, comprising:
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an antenna mounting substrate connected to said mobile communication device; and a dielectric antenna connected to said antenna mounting substrate, said dielectric antenna comprising; a dielectric base having an antenna forming face in a rectangular shape; a linear element extending on the antenna forming face adjacently only a periphery of the antenna forming face; at least one bending portion included in said linear element; a power supply terminal connected to a base end portion of said linear element; a linear conductor branching in the vicinity of the base end portion of said linear element on the antenna forming face; and a ground terminal connected to a tip of said linear conductor.
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20. An antenna mounting substrate, comprising:
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a mounting face which is laterally long and having a bottom side; and a chip antenna and a ground portion adjacent to each other along the bottom side on said mounting face, wherein said mounting face between said chip antenna and the bottom side is provided with a linear conductor having a predetermined length, the linear conductor connecting one end thereof only to said ground portion. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A communication device comprising:
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a computer having a frame; and an antenna mounting substrate, comprising; a mounting face which is laterally long and having a bottom side; and a chip antenna and a ground portion adjacent to each other along the bottom side on said mounting face, wherein said mounting face between said chin antenna and the bottom side is provided with a linear conductor having a predetermined length, the linear conductor connecting one end thereof only to said ground portion; and wherein said antenna mounting substrate is connected to said frame. - View Dependent Claims (28)
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Specification