Method of regulating resonance frequency of surface-mountable an

Details Method of regulating resonance frequency of surface-mountable an Method of regulating resonance frequency of surface-mountable an

1995-03-06

1996-12-31

Arbes, Carl J.

Metal working

Method of mechanical manufacture

Electrical device making

343702, 343745, 343767, H01P 1100

Patent

active

055881980

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.

REFERENCES:
patent: 3381371 (1968-05-01), Russell
patent: 5268702 (1993-12-01), Amano et al.

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