| 摘要 |
PROBLEM TO BE SOLVED: To stabilize the signal switching performance while restricting the abrasion of a joint surface due to the repeated joint with a movable contact piece by forming the joint surface of a round bar-like terminal of a high frequency relay contacting and separating with/from a movable contact piece into a flat surface. SOLUTION: A round bar-like normally open fixed terminal 3a, a common fixed terminal 3b and a normally closed fixed terminal 3c are cut out at a part close to a tip thereof so as to locally provide a flat surface part, and a joint surface 3d, which contacts or separates with/from movable contacts 13a, 13b made of the conductive metal plate is formed. In the case of the signal switching operation, a card 10 is moved to the left or right in parallel by electrifying a coil 8 or stopping the electrifying, and the movable contact pieces 13a, 13b supported by the card 10 are driven so as to contact or separate with/from the joint surface 3d of each terminal 3a, 3b to switch the high frequency signal. With this structure that the joint surface of the fixed terminal 3 is formed into a flat surface from the beginning, change of the contact resistance due to a gradual change of a circular plate to a flat surface by abrasion is restricted, the signal switching performance is stabilized, and insertion loss can be lowered.
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