ANTENNA - MATSUSHITA ELECTRIC WORKS LTD

Title:

ANTENNA

Document Type and Number:

Japanese Patent JP3528549

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide an antenna capable of preventing damage by reducing the projecting quantity from an execution plane.
SOLUTION: A ground plate 1 is formed more almost circular plate-shaped than metallic material. A radiation element 4 is almost spirally formed by stamping a metallic plate out, the element 4 is placed between a spacer 6 and a nut 11 by penetrating a fixing screw 8 that goes through a screw penetration hole 1a of the plate 1 through the spacer 6 and a screw penetration hole 9 of the element 4 and screwing the nut 11 in the screw 8, the element 4 is arranged in almost parallel with the plate 1 at about 0.0035 λ distance from the plate 1 and the central part of the element 4 is electrically connected to the plate 1 through the spacer 6 and the screw 8. Also, a feeding connector 7 is attached to a plane that is opposite to the element 4 of the plate 1 and an inner conductor 7a of the connector 7 is soldered to a hole 10 provided at the element 4 and fed to the element 4.

More Like This: