Surface-mountable antenna unit
First Claim
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1. A surface-mountable antenna unit comprising:
- a dielectric substrate having a top surface, a substantially flat bottom surface for surface-mounting, and side surfaces;
a ground electrode being formed on at least one of a side surface and a bottom surface of said dielectric substrate;
a radiator, having a major surface and consisting of a material having low conductor loss, being fixed to said dielectric substrate so that its major surface is opposed to the top surface of said dielectric substrate, to thereby form a laminate of said dielectric substrate and said radiator; and
a feed part being provided at least on one of a side surface and a bottom surface of said laminate formed by said dielectric substrate and said radiatorwherein said radiator comprises a radiating part having said major surface, and at least one fixed part extending from at least one edge of said radiating part toward said dielectric substrate,said at least one fixed part being fixed to said side surface of said dielectric substrate, thereby fixing said radiator to said dielectric substrate, andfurther comprising a feed terminal and a ground terminal being integrally formed on said at least one fixed part of said radiator.
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Abstract
A surface-mountable antenna unit including a dielectric substrate having a rectangular plane shape which is provided on a side surface and/or a bottom surface thereof with a ground electrode, and a radiator, provided with a radiating part having a substantially rectangular plane shape, which is fixed to the dielectric substrate so that the radiator is opposed to a top surface of the dielectric substrate, with a feed part provided on a side surface of a laminate which is formed by the dielectric substrate and the radiator.
54 Citations
47 Claims
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1. A surface-mountable antenna unit comprising:
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a dielectric substrate having a top surface, a substantially flat bottom surface for surface-mounting, and side surfaces; a ground electrode being formed on at least one of a side surface and a bottom surface of said dielectric substrate; a radiator, having a major surface and consisting of a material having low conductor loss, being fixed to said dielectric substrate so that its major surface is opposed to the top surface of said dielectric substrate, to thereby form a laminate of said dielectric substrate and said radiator; and a feed part being provided at least on one of a side surface and a bottom surface of said laminate formed by said dielectric substrate and said radiator wherein said radiator comprises a radiating part having said major surface, and at least one fixed part extending from at least one edge of said radiating part toward said dielectric substrate, said at least one fixed part being fixed to said side surface of said dielectric substrate, thereby fixing said radiator to said dielectric substrate, and further comprising a feed terminal and a ground terminal being integrally formed on said at least one fixed part of said radiator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A surface-mountable antenna unit comprising:
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a dielectric substrate having a top surfacer a bottom surface and side surfaces; a ground electrode being formed on at least one of a side surface and a bottom surface of said dielectric substrate; a radiator, having a major surface and consisting of a material having low conductor loss, being fixed to said dielectric substrate so that its major surface is opposed to the top surface of said dielectric substrate; and a feed part being provided at least on one of a side surface and a bottom surface of a laminate formed by said dielectric substrate and said radiator; further comprising a shield electrode being formed on said dielectric substrate, said shield electrode being electrically connected to said ground electrode, and said radiator has a radiating part and an annular side wall part extending from an edge of said radiating part toward said dielectric substrate, a flange part being formed on a forward end of said annular side wall part, said flange part being electrically connected to and mechanically bonded with said shield electrode, thereby defining a space of a prescribed thickness between said radiating part and said dielectric substrate. - View Dependent Claims (43, 44, 45, 46, 47)
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Specification