Wrist-mounted-type antenna device and apparatus having the antenna device
First Claim
1. A wrist-mounted-type antenna device comprising:
- a main body having a front surface that faces away from a user'"'"'s wrist when mounted around the user'"'"'s wrist, a rear surface that faces toward the user'"'"'s wrist when mounted around the user'"'"'s wrist, and a circuit board in said main body between said front surface and said rear surface, a circuit arranged on said circuit board; and
a slot antenna assembly including a slot extending along a length of said antenna assembly, said antenna assembly having a reactance element connected across sides of said slot near a center of a length of said slot, said antenna assembly coupled to said circuit board and at least partly located in said main body between said front surface and said circuit board and spaced from the circuit arranged on said circuit board, whereby an electric field is produced across said slot when said antenna device is operated.
1 Assignment
0 Petitions
Accused Products
Abstract
A wrist-mounted-type portable radio apparatus includes a main body having a front surface that faces away from the user'"'"'s wrist, a rear surface that faces the user'"'"'s wrist when mounted around the user'"'"'s wrist, a circuit board having electrical circuitry and arranged in the main body, and wrist bands connected to the main body for mounting the device around the user'"'"'s wrist. The radio apparatus also includes an antenna assembly fixed in the main body and the wrist bands, and arranged in the main body so that it is positioned on a side of the circuit board facing the front surface of the main body. Because the circuit board is not disposed on the front surface side of the antenna assembly, a radiation wave generated by the antenna assembly is not disturbed. Therefore, the wrist-mounted-type antenna device has high directivity and sensitivity.
82 Citations
46 Claims
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1. A wrist-mounted-type antenna device comprising:
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a main body having a front surface that faces away from a user'"'"'s wrist when mounted around the user'"'"'s wrist, a rear surface that faces toward the user'"'"'s wrist when mounted around the user'"'"'s wrist, and a circuit board in said main body between said front surface and said rear surface, a circuit arranged on said circuit board; and a slot antenna assembly including a slot extending along a length of said antenna assembly, said antenna assembly having a reactance element connected across sides of said slot near a center of a length of said slot, said antenna assembly coupled to said circuit board and at least partly located in said main body between said front surface and said circuit board and spaced from the circuit arranged on said circuit board, whereby an electric field is produced across said slot when said antenna device is operated. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wrist-mounted-type antenna device comprising:
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a main body having an outer frame that defines a cavity and an outer peripheral surface of said main body, and a circuit board located inside said cavity, a circuit arranged on said circuit board; and a slot antenna assembly attached to said outer peripheral surface of said main body and coupled to said circuit board, said antenna assembly including a slot extending along a length of said antenna assembly and having a reactance element connected across sides of said slot near a center of a length of said slot, whereby an electric field is produced across said slot when said antenna device is operated. - View Dependent Claims (8, 9)
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10. A wrist-mounted-type antenna device comprising:
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a main body, a circuit board located in said main body, a circuit arranged on said circuit board; a pair of wrist bands connected to said main body; and a slot antenna assembly including a slot extending along a length of said antenna assembly, said antenna assembly having a reactance element connected across sides of said slot near a center of a length of said slot, said antenna assembly attached to said wrist bands and having a first member and a second member located in said main body, said first and second members facing each other across said slot, said first member connected to a reference terminal of a high frequency wave amplifier on said circuit board, said second member connected to a feed terminal of said high frequency wave amplifier, and said second member being located farther than said first member from electromagnetic noise sources radiated by said circuit on said circuit board, whereby an electric field is produced across said slot when said antenna device is operated. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A wrist-mounted-typed antenna device comprising:
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a main body, a circuit board in said main body, a plurality of circuits arranged on said circuit board; a pair of wrist bands connected to said main body; a slot antenna assembly including a slot extending along a length of said antenna assembly, said antenna assembly coupled to said circuit board located in said main body and said pair of wrist bands, said antenna assembly at least partly located between front surface of said main body and said circuit board and spaced from said plurality of circuits arranged on said circuit board; and a reactance element located at a center of said length of said antenna assembly, said reactance element connecting two portions of said antenna assembly to each other across said slot, whereby an electric field is produced across said slot when said antenna device is operated. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. A wrist-mounted-type antenna device comprising:
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a main body, a circuit board located in said main body, a circuit arranged on said circuit board; and a slot antenna assembly including a slot extending along a length of said antenna assembly and coupled to said circuit board; and a reactance element located at a center of said length of said antenna assembly and connected across said slot, said antenna assembly having a plurality of holes, a density of said holes in said antenna assembly increasing towards said reactance element from a distal portion of said antenna assembly, whereby an electric field is produced across said slot when said antenna device is operated. - View Dependent Claims (27, 28, 29)
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30. A wrist-mounted-type antenna device comprising:
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a main body, a circuit board in said main body, a circuit arranged on said circuit board; a wrist band connected to said main body; a slot antenna assembly included a slot extending along a length of said antenna assembly, said antenna assembly attached to said wrist band and extending through said main body; and a reactance element located at a center of said length of said antenna assembly connected across said slot, said wrist band having a rear surface said that faces a user'"'"'s wrist, a thickness of said rear surface side of said wrist band between said antenna assembly and the user'"'"'s wrist increasing towards said reactance element relative to portions of said wrist band rear surface said located distal from said reactance element, whereby an electric field is produced across said slot when said antenna device is operated. - View Dependent Claims (31, 32, 33)
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34. A wrist-mounted-type antenna device comprising:
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a main body, a circuit board in said main body, a plurality of circuits arranged on said circuit board; and a slot antenna assembly including a slot extending along a length of said antenna assembly and coupled to said circuit board said antenna assembly having a reactance element connected across sides of said slot near a center of a length of said slot, said antenna assembly being elongated and having distal ends, said antenna assembly including means for reducing resistivity loss at said distal ends in order to reduce a resistivity for a high frequency current, whereby an electric field is produced across said slot when said antenna device is operated. - View Dependent Claims (35, 36, 37, 38, 39, 40)
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41. A wrist-mounted-type antenna device comprising:
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a main body having a front surface that faces away from a user'"'"'s wrist when mounted around said user'"'"'s wrist, a circuit board in said main body, a circuit arranged on said circuit board; a pair of wrist bands connected to said main body and having different lengths; and a slot antenna assembly including a slot extending along a length of said antenna assembly, said antenna assembly having a reactance element connected across sides of said slot near a center of a length of said slot, said antenna assembly attached to said pair of wrist bands and extending through said main body, said antenna assembly including a first member and a second member located in said main body and facing each other across said slot, said first and second members positioned on a side of said circuit board that faces said front surface of said main body, said first member connected to a reference terminal of a high frequency wave amplifier, said second member connected to a feed terminal of said high frequency wave amplifier, and said second member being located farther than said first member from electromagnetic noise sources radiated by said plurality of circuits, whereby an electric field is produced across said slot when said antenna device is operated. - View Dependent Claims (42)
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43. A wrist-mounted-type portable apparatus comprising:
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a main body having a front surface that faces away from a user'"'"'s wrist when mounted around the user'"'"'s wrist, a rear surface that faces toward the user'"'"'s wrist when mounted around the user'"'"'s wrist, and a circuit board in said main body between said front surface and said rear surface, a circuit arranged on said circuit board; and a slot antenna device, said antenna device including;
an antenna assembly including a slot extending along a length of said antenna assembly, said antenna assembly having a reactance element connected across sides of said slot near a center of a length of said slot, said antenna assembly at least partly located in said main body between said front surface and said circuit board and coupled to said circuit board, whereby an electric field is produced across said slot when said antenna device is operated.
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44. A wrist-mounted-type portable apparatus comprising:
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a main body, a circuit board in said main body, a circuit arranged on said circuit board; a pair of wrist bands connected to said main body; a slot antenna device, said slot antenna device including;
an antenna assembly including a slot extending along a length of said antenna assembly, said antenna assembly coupled to said circuit board located in said main body and said pair of wrist bands, said antenna assembly at least partly located in said main body between front surface of said main body and said circuit board and spaced from said circuits arranged on said circuit board; anda reactance element located at a center of said length of said antenna assembly, said reactance element connecting two portions of said antenna assembly to each other across said slot, whereby an electric field is produced across said slot when said antenna device is operated. - View Dependent Claims (45, 46)
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Specification