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Patent Searching and Data


Title:
ANTENNA SYSTEM
Document Type and Number:
Japanese Patent JPH02254802
Kind Code:
A
Abstract:

PURPOSE: To prevent gain reduction, deterioration in NF and damage to components due to static electricity or the like by covering a tip of a center conductor of a feeding pin projecting from a converter with a dielectric substance so as to avoid a human hand or the like from being in direct contact to the said tip in the case of connecting an antenna and the converter.

CONSTITUTION: A tip 6a slightly projects from a tip face 7a of a surrounding dielectric substance 7 and a plastic 16 is formed from the tip face 7a of the dielectric substance 7 in the lengthwise direction of the dielectric substance 7 so as to cover the projection completely. Thus, the tip 6a of a center conductor 6a is not exposed and direct contact by human fingers is avoided. Thus, it is not required to insert a capacitor C as a countermeasure for static electricity and the deterioration in the noise figure (NF) of a BS converter is prevented. Moreover, moisture invading from between an outer circumferential face of the center conductor 8 and an inner circumferential face of the dielectric substance 7 into the inside of a converter 3 is prevented.


Inventors:
KOMATSU MIKIO
FUJII YASUHIRO
KANDA MINORU
Application Number:
JP7727289A
Publication Date:
October 15, 1990
Filing Date:
March 28, 1989
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
H01Q21/06; H01P5/08; H01Q13/08; H01Q23/00; (IPC1-7): H01P5/08; H01Q13/08; H01Q21/06; H01Q23/00
Attorney, Agent or Firm:
Shigeji Sato (1 person outside)