Antenna device
First Claim
Patent Images
1. An antenna device comprising:
- a dielectric member or a dielectric substrate and a radiating conductor formed in or on the dielectric member or the dielectric substrate, the radiating conductor being formed in a planar shape;
the radiating conductor having a conductor shape defined by a first forming element, a second forming element and a third forming element disposed in one direction, the radiating conductor being configured in such a single shape that the first forming element and the second forming element are jointed together and that the second forming element and the third forming element are jointed together;
the first forming element being formed in a shape selected among a semi-circular shape, a substantially semi-circular shape, a semi-oval shape, a substantially semi-oval shape, an arched shape and a substantially arched shape;
the third forming element being formed in a shape selected among a band-like shape, a substantially band-like shape, a rectangular shape and a substantially rectangular shape;
the first forming element and the third forming element being disposed to be apart from each other;
the second forming element being disposed to bridge a gap between the first forming element and the third forming element; and
the third forming element having a feed point disposed therein;
wherein when it is assumed that the semi-circular shape, the substantially semi-circular shape, the semi-oval shape, the substantially semi-oval shape, the arched shape and the substantially arched shape of the first forming element has a chord extended beyond the second forming element to an edge portion of the third forming element remote from the first forming element, and that the extended portion of the chord is called an imaginary chord, an edge portion of the second forming element close to the imaginary chord and one side of the third forming element close to the imaginary chord overlap or substantially overlap with the imaginary chord; and
wherein when maximum vertical lengths of the first forming element, the second forming element and the third forming element in a direction orthogonal to the one direction are represented by W1, W2 and W3, respectively, W1, W2 and W3 are set to satisfy the condition of W1>
W2>
W3.
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Accused Products
Abstract
The radiating conductor in an antenna device comprises first forming elements, second forming elements and third forming elements disposed to be coupled in one direction. The first forming elements are formed in a semi-circular shape, and the third forming elements are formed in a band-like shape and have feed points disposed therein. The first forming elements, the second forming elements and the third forming elements have respective maximum lengths gradually reduced in this order.
36 Citations
26 Claims
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1. An antenna device comprising:
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a dielectric member or a dielectric substrate and a radiating conductor formed in or on the dielectric member or the dielectric substrate, the radiating conductor being formed in a planar shape; the radiating conductor having a conductor shape defined by a first forming element, a second forming element and a third forming element disposed in one direction, the radiating conductor being configured in such a single shape that the first forming element and the second forming element are jointed together and that the second forming element and the third forming element are jointed together; the first forming element being formed in a shape selected among a semi-circular shape, a substantially semi-circular shape, a semi-oval shape, a substantially semi-oval shape, an arched shape and a substantially arched shape; the third forming element being formed in a shape selected among a band-like shape, a substantially band-like shape, a rectangular shape and a substantially rectangular shape; the first forming element and the third forming element being disposed to be apart from each other; the second forming element being disposed to bridge a gap between the first forming element and the third forming element; and the third forming element having a feed point disposed therein; wherein when it is assumed that the semi-circular shape, the substantially semi-circular shape, the semi-oval shape, the substantially semi-oval shape, the arched shape and the substantially arched shape of the first forming element has a chord extended beyond the second forming element to an edge portion of the third forming element remote from the first forming element, and that the extended portion of the chord is called an imaginary chord, an edge portion of the second forming element close to the imaginary chord and one side of the third forming element close to the imaginary chord overlap or substantially overlap with the imaginary chord; and wherein when maximum vertical lengths of the first forming element, the second forming element and the third forming element in a direction orthogonal to the one direction are represented by W1, W2 and W3, respectively, W1, W2 and W3 are set to satisfy the condition of W1>
W2>
W3. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An antenna device comprising:
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a dielectric member or a dielectric substrate and a pair of radiating conductors formed in or on the dielectric member or the dielectric substrate, the radiating conductors comprising a first radiating conductor and a second radiating conductor, the first radiating conductor and the second radiating conductor being formed in a planar shape and disposed on the same plane as each other so as to be confront each other; each of the first radiating conductor and the second radiating conductor having a feed point disposed therein; the first radiating conductor of the paired radiating conductors having a conductor shape defined by a first forming element, a second forming element and a third forming element disposed in one direction, the radiating conductor being configured in such a single shape that the first forming element and the second forming element are jointed together and that the second forming element and the third forming element are jointed together; the third forming element of the first radiating conductor being disposed on a confronting side to confront the second radiating conductor; the first forming element of the first radiating conductor being formed in a shape selected among a semi-circular shape, a substantially semi-circular shape, a semi-oval shape, a substantially semi-oval shape, an arched shape and a substantially arched shape; the third forming element of the first radiating conductor being formed in a shape selected among a band-like shape, a substantially band-like shape, a rectangular shape and a substantially rectangular shape; and the first radiating conductor having the first forming element and the third forming element disposed to be apart from each other, and the second forming element disposed to bridge a gap between the first forming element and the third forming element; wherein when it is assumed that the semi-circular shape, the substantially semi-circular shape, the semi-oval shape, the substantially semi-oval shape, the arched shape and the substantially arched shape of the first forming element in the first radiating conductor has a chord extended beyond the second forming element to an edge portion of the third forming element remote from the first forming element, and that the extended portion of the chord is called an imaginary chord, an edge portion of the second forming element close to the imaginary chord and one side of the third forming element close to the imaginary chord overlap or substantially overlap with the imaginary chord; and wherein when maximum vertical lengths of the first forming element, the second forming element and the third forming element in the first radiating conductor in a direction orthogonal to the one direction are represented by W1A, W2A and W3A, respectively, W1A, W2A and W3A are set to satisfy the condition of W1A>
W2A>
W3A. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An antenna device comprising:
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a dielectric member or a dielectric substrate and a pair of radiating conductors disposed on or in the dielectric member or the dielectric substrate, the radiating conductors comprising a first radiating conductor and a second radiating conductor disposed on the same plane as each other; the paired radiating conductors being disposed to confront each other along one direction; and the paired radiating conductors having feed points disposed at or in the vicinity of closest portions thereof, the feed points being fed power by paired signal lines extending in parallel with each other; wherein each of the paired signal lines comprises a first linear portion and a second linear portion disposed in a substantially L-character shape on or in the dielectric member or the dielectric substrate, the first linear portion linearly extending along the one direction, and the second linear portion turning in a direction orthogonal to the one direction and linearly extending from the first linear portion to feed power to the paired radiating conductors; and wherein when the second radiating conductor is one of the paired radiating conductors close to the first linear portion of each of the paired signal lines, and when the first radiating conductor is the other radiating conductor confronting the second radiating conductor, the second radiating conductor has a linear side extending along at least the one direction in the vicinity of the feed points, and the second radiating conductor has a portion close to the paired signal lines cut out so as to have a gradually larger distance than a distance between the paired signal lines and the linear side.
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Specification