Mobile telecommunication antenna and mobile telecommunication apparatus using the same
First Claim
1. A mobile telecommunication antenna embedded in an upper region in a case of a telecommunication apparatus comprising a high-frequency circuit and a grounding substrate in use operable in a plurality of different frequency bands, comprising:
- a first radiation-conductive element having a sheet shape arranged in parallel with a surface of the grounding substrate and over the surface of the grounding substrate;
a second radiation-conductive element having a strip shape having walls perpendicular to the surface of the grounding substrate; and
a power supply terminal for electrically coupling at least one of the radiation-conductive elements to the high-frequency circuit embedded in the case,wherein the first and second radiation-conductive elements are electrically coupled to each other, and at least one of the radiation-conductive elements is electrically coupled to the grounding substrate.
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Abstract
The present invention relates to an antenna equipped in a mobile telecommunication apparatus such as a portable telephone. The object of the invention is to enhance the portability and the durability of the mobile telecommunication apparatus, to provide a mobile telecommunication antenna while is improved in the mass productivity and the electrical characteristics, and to provide a mobile telecommunication apparatus employing the antenna. To achieve the object of the present invention, the mobile communication apparatus has no projecting portion of the antenna provided on a case, and the antenna is accommodated in the case. This enhances both the portability and the durability. Also, the antenna is reduced to a chip size thus improving its mass-productivity and electrical characteristics.
49 Citations
12 Claims
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1. A mobile telecommunication antenna embedded in an upper region in a case of a telecommunication apparatus comprising a high-frequency circuit and a grounding substrate in use operable in a plurality of different frequency bands, comprising:
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a first radiation-conductive element having a sheet shape arranged in parallel with a surface of the grounding substrate and over the surface of the grounding substrate; a second radiation-conductive element having a strip shape having walls perpendicular to the surface of the grounding substrate; and a power supply terminal for electrically coupling at least one of the radiation-conductive elements to the high-frequency circuit embedded in the case, wherein the first and second radiation-conductive elements are electrically coupled to each other, and at least one of the radiation-conductive elements is electrically coupled to the grounding substrate. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A mobile telecommunication apparatus operable in a plurality of different frequency bands comprising
an operating unit; -
a display; a speaker; a microphone; a case; a high-frequency circuit embedded in the case; a grounding substrate; and an antenna embedded in the case, comprising; a first radiation-conductive element arranged in parallel with a surface of the grounding substrate and disposed at an upper region in the case; a second radiation-conductive element having walls perpendicular to the surface of the grounding substrate and disposed at the upper region in the case; and a power supply terminal electrically coupling at least one of the first and second radiation-conductive elements to the high-frequency circuit, wherein the first and second radiation-conductive elements are electrically coupled to each other, and at least one of the first and second radiation-conductive elements is electrically coupled to the grounding substrate. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification