RESIN COMPOSITION FOR HIGH-FREQUENCY CONTACT POINT AND HIGH-FREQUENCY PROPAGATING COMPONENT

摘要

PROBLEM TO BE SOLVED: To obtain a composition which can give a high-frequency contact point having excellent electric conductivity nearly equivalent to that of a metal at a high frequency of a specified MHz or above and being capable of being inexpensively producible even when it is complicated in shape by mixing a resin with a filler. SOLUTION: There is provided a composition for a contact point for use at a high frequency of 10 MHz or above. The resin used as a matrix resin may be a resin material having a resistance value of 1×10<10>Ωcm or above. Among such resins, a thermoplastic resin is desirable. The conductive filler is particularly desirably a short-fiber-like filler, below. Further, it is desirably one having an average fiber diameter of 50μm or below. The filling ratio of the conductive filler is usually 1-200 pts.vol. per 100 pts.vol. matrix. It is desirable that the resistance value of the composition is such that the absolute value of its impedance to a 10 MHz signal is 100Ωor below.