JPH0332812U

JPH0332812U -

Info

Publication number: JPH0332812U
Application number: JP9272489U
Authority: JP
Priority date: 1989-08-07
Filing date: 1989-08-07
Publication date: 1991-03-29

Description

[Brief explanation of drawings]

第１図は本考案の一実施例による周波数選択板
を示す構成図、第２図は第１図に示すものの断面
図、第３図、第４図は第１図に示すものの原理説
明図、第５図は従来の周波数選択板を示す構成図
、第６図は第５図に示すものの断面図、第７図は
第５図に示すものの原理説明図である。図において、１……金属パターン、２……枠、
３……スリツトバー、４，４ａ，４ｂ……形状記
憶合金製のバネ、５……固定バーである。尚、図
中同一符号は同一、又は相当部分を示す。 FIG. 1 is a configuration diagram showing a frequency selection board according to an embodiment of the present invention, FIG. 2 is a sectional view of the one shown in FIG. 1, and FIGS. 3 and 4 are diagrams explaining the principle of the one shown in FIG. FIG. 5 is a configuration diagram showing a conventional frequency selection plate, FIG. 6 is a sectional view of the one shown in FIG. 5, and FIG. 7 is a diagram explaining the principle of the one shown in FIG. 5. In the figure, 1...metal pattern, 2...frame,
3... Slit bar, 4, 4a, 4b... Spring made of shape memory alloy, 5... Fixed bar. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

In a frequency selection board that separates high-frequency and low-frequency radio waves, a grid-like metal pattern is arranged between the dielectric or conductor frames that make up the frequency selection board, and a shape memory alloy metal pattern is placed at both ends of each of the metal patterns. A frequency selection plate characterized in that a spring is installed and the deformation temperatures of the spring made of a shape memory alloy at one end and the spring made of a shape memory alloy at the other end are made different.