Antenna apparatus, printed wiring board, printed circuit board, communication adapter and portable electronic equipment
First Claim
Patent Images
1. An antenna apparatus comprising:
- a ground member having a length along a predetermined directional axis, the length being about a quarter or more of a wavelength of an electromagnetic wave used for communication; and
an antenna element extending in a direction substantially orthogonal to the directional axis and connected to the ground member;
wherein the antenna element is disposed substantially in the same plane as an end portion of the ground member with a predetermined distance provided therebetween.
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Accused Products
Abstract
An antenna apparatus is provided that includes a printed wiring board, electronic components disposed on the printed wiring board, a shielding member (ground member) that is disposed on the printed wiring board. The shielding member has a length along a predetermined directional axis X set substantially to ¼λ or more, the wavelength of an electromagnetic wave used for communication being λ. An antenna element extends in a direction crossing the directional axis X and is grounded to the shielding member (ground member).
117 Citations
21 Claims
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1. An antenna apparatus comprising:
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a ground member having a length along a predetermined directional axis, the length being about a quarter or more of a wavelength of an electromagnetic wave used for communication; and
an antenna element extending in a direction substantially orthogonal to the directional axis and connected to the ground member;
wherein the antenna element is disposed substantially in the same plane as an end portion of the ground member with a predetermined distance provided therebetween. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A printed wiring board comprising:
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a ground member having a length along a predetermined directional axis, the length being about a quarter or more of a wavelength of an electromagnetic wave used for communication; and
an antenna element extending in a direction substantially orthogonal to the directional axis and connected to the ground member;
wherein the ground member and the antenna element are printed wirings. - View Dependent Claims (8, 9, 10)
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11. A printed circuit board comprising:
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a printed wiring board;
an electronic circuit disposed on the printed wiring board;
a ground member having a length along a predetermined directional axis, the length being about a quarter or more of a wavelength of an electromagnetic wave used for communication; and
an antenna element extending in a direction substantially orthogonal to the directional axis and connected to the ground members;
wherein the antenna element is disposed substantially in the same plane as an end portion of the ground member with a predetermined distance provided therebetween. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A communication adapter comprising:
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a printed wiring board;
an electronic circuit disposed on the printed wiring board;
a ground member having a length along a predetermined directional axis, the length being about a quarter or more of the wavelength of an electromagnetic wave used for communication;
an antenna element extending in a direction substantially orthogonal to the directional axis and connected to the ground member; and
a connector connection terminal;
wherein the connector connection terminal is disposed on a side toward which an antenna element main body of the antenna element extends in relation to the printed wiring board. - View Dependent Claims (21)
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Specification
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Current AssigneeSeiko Epson Corporation (Seiko Group)
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Original AssigneeSeiko Epson Corporation (Seiko Group)
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InventorsKoyama, Shunsuke
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Primary Examiner(s)Ho, Tan
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Application NumberUS10/661,353Publication NumberTime in Patent Office739 DaysField of Search343/700.MS, 343/702, 343/841, 343/846, 343/848US Class Current343/700.0MSCPC Class CodesH01L 2223/6677 for antenna, e.g. antenna i...H01L 2924/19105 in a side-by-side arrangeme...H01L 2924/3025 Electromagnetic shieldingH01Q 1/243 with built-in antennasH01Q 1/44 using equipment having anot...H01Q 1/526 Electromagnetic shieldsH01Q 23/00 Antennas with active circui...H01Q 9/0421 with a shorting wall or a s...H01Q 9/42 with folded element, the fo...
