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Micromechanical RF switch

A micro-mechanical and switching technology, applied in the field of radio frequency electronics, can solve the problems of small capacitor plate area, low switching speed, and difficulty in obtaining large driving force, etc., and achieve the effect of increasing switching speed and low power consumption

Inactive Publication Date: 2014-07-30
SUZHOU KUEN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The horizontal structure is due to the small area of ​​the capacitor plate. Although the damping is reduced, it is difficult to obtain a large driving force and the switching speed is not high, so design optimization is required

Method used

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  • Micromechanical RF switch

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Embodiment Construction

[0013] The design will be further described below in conjunction with the accompanying drawings of the description.

[0014] Such as figure 1 As shown, a micromechanical RF switch is characterized in that it includes a capacitor 6, a spring 2, an insulating block 3, a contact 4, and an RF signal line 5, wherein the capacitor is composed of a movable plate 6-2 and a fixed plate 6-1 Composition; one end of the spring 2 is connected to the fixed point 1, and one end is connected to the movable pole plate 6-2, the contact 4 is located under the movable pole plate 6-2, and the contact 4 and the movable pole plate 6-2 pass through The insulating block 3 is isolated, the fixed pole plate 6 - 1 is located between the movable pole plate 6 - 2 and the contact 4 , and the RF signal line 5 is arranged under the contact 4 .

[0015] When the switch is closed, under the action of the electrostatic force of the plate capacitor 6, the movable structure is horizontally balanced

[0016]...

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Abstract

The invention discloses a micromechanical RF switch which is characterized by comprising a capacitor, a spring, an insulating block, a contact and an RF signal line. The capacitor is formed by a movable pole plate and a fixed pole plate. One end of the spring is connected with a fixing point, the other end of the spring is connected with the movable pole plate, the contact is located below the movable pole plate and isolated from the movable pole plate through the insulating block, the fixed pole plate is located between the movable pole plate and the contact, and the RF signal line is arranged below the contact. According to the micromechanical RF switch, an electrostatic driven switch structure is adopted, and the switch is turned on or turned off through electrostatic attraction force of the capacitor and the elastic force of the metal spring. The micromechanical RF switch has the advantages of being rapid and low in power dissipation, and the switching speed is further increased.

Description

technical field [0001] This design relates to a micromechanical RF switch, which belongs to the technical field of radio frequency electronics. Background technique [0002] Common drive methods for micromechanical RF switches include electrostatic drive, piezoelectric drive, electromagnetic drive, and thermal drive. Electrostatic drive is realized by the electrostatic force between charged bodies, which is the simplest and most common MEMS switch. [0003] The drive method used has extremely low power consumption. Electrostatically driven contact MEMS switches mainly include longitudinal and transverse structures. Vertical contact means that the direction of switching action is perpendicular to the plane of the substrate, while lateral contact means that the direction of switching action is parallel to the plane of the substrate. The horizontal structure is due to the small area of ​​the capacitor plate. Although the damping is reduced, it is difficult to obtain a la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H59/00
Inventor 杨俊民
Owner SUZHOU KUEN ELECTRONICS TECH