Method of regulating resonance frequency of surface-mountable antenna
First Claim
1. A method of regulating the resonance frequency of a surface-mountable antenna, comprising the steps of:
- preparing a surface-mountable antenna including a substrate made of a dielectric material, a groove being formed on an upper surface of said substrate to have end portions at a pair of opposite end surfaces of said substrate, a radiating electrode being formed on the inner peripheral surface of said groove, a feeding electrode being formed on one of said pair of opposite end surfaces of said substrate in conductive connection with said radiating electrode, a ground electrode being formed on one of said pair of end surfaces to be insulated from said feeding electrode, and an end electrode being formed on the other one of said pair of opposite end surfaces of said substrate; and
partially trimming said radiating electrode, said ground electrode or said end electrode for regulating the resonance frequency of said surface-mountable antenna.
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Accused Products
Abstract
A method of regulating the resonance frequency of a surface-mountable antenna includes (a) a step of preparing a surface-mountable antenna including a substrate which is made of a dielectric material, a groove which is formed on an upper surface of the substrate to have end portions at a pair of opposite end surfaces of the substrate, a radiating electrode which is formed on the inner peripheral surface of the groove, a feeding electrode which is formed on one of the pair of opposite end surfaces of the substrate and connected with the radiating electrode, a ground electrode which is formed on one of the pair of end surfaces and insulated from the feeding electrode, and an end electrode which is formed on the other one of the pair of opposite end surfaces of the substrate, and (b) a step of either (1) partially trimming the radiating electrode, the ground electrode or the end electrode, or (2) mounting a dielectric member on the substrate, for changing the resonance frequency of the surface-mountable antenna. It is possible to change capacitance and inductance components which are present in the substrate by partially trimming the radiating electrode, the ground electrode or the end electrode, or by mounting a dielectric member on the substrate, thereby regulating the resonance frequency of the surface-mountable antenna to a desired value.
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Citations
12 Claims
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1. A method of regulating the resonance frequency of a surface-mountable antenna, comprising the steps of:
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preparing a surface-mountable antenna including a substrate made of a dielectric material, a groove being formed on an upper surface of said substrate to have end portions at a pair of opposite end surfaces of said substrate, a radiating electrode being formed on the inner peripheral surface of said groove, a feeding electrode being formed on one of said pair of opposite end surfaces of said substrate in conductive connection with said radiating electrode, a ground electrode being formed on one of said pair of end surfaces to be insulated from said feeding electrode, and an end electrode being formed on the other one of said pair of opposite end surfaces of said substrate; and partially trimming said radiating electrode, said ground electrode or said end electrode for regulating the resonance frequency of said surface-mountable antenna. - View Dependent Claims (2, 3, 4)
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5. A method of regulating the resonance frequency of a surface-mountable antenna, comprising the steps of:
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preparing a surface-mountable antenna including a substrate made of a dielectric material, a through hole being formed in said substrate to have end portions at a pair of opposite end surfaces of said substrate, a radiating electrode being formed on the inner peripheral surface of said through hole, a feeding electrode being formed on one of said pair of opposite end surfaces of said substrate in conductive connection with said radiating electrode, and an end electrode being formed on the other one of said pair of opposite end surfaces of said substrate; and partially trimming said radiating electrode, said ground electrode or said side electrode for regulating the resonance frequency of said surface-mountable antenna. - View Dependent Claims (6, 7, 8)
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9. A method of regulating the resonance frequency of a surface-mountable antenna, comprising the steps of:
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preparing a surface-mountable antenna including a substrate made of a dielectric material, a through hole being formed in said substrate to have opening portions at a pair of opposite end surfaces of said substrate, a radiating electrode being formed on the inner peripheral surface of said through hole, a feeding electrode being formed on one of said pair of opposite end surfaces of said substrate in conductive connection with said radiating electrode, a ground electrode being formed on one of said pair of end surfaces to be insulated from said feeding electrode, and an end electrode being formed on the other one of said pair of opposite end surfaces of said substrate; and mounting a dielectric member on a surface of said substrate in a position close to either one of said opening portions of said through hole for regulating the resonance frequency of said surface-mountable antenna. - View Dependent Claims (10, 11, 12)
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Specification