CN203910686U - Contact RF switch - Google Patents
Contact RF switch Download PDFInfo
- Publication number
- CN203910686U CN203910686U CN201420150351.6U CN201420150351U CN203910686U CN 203910686 U CN203910686 U CN 203910686U CN 201420150351 U CN201420150351 U CN 201420150351U CN 203910686 U CN203910686 U CN 203910686U
- Authority
- CN
- China
- Prior art keywords
- contact
- anchor point
- switch
- word spring
- type spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Micromachines (AREA)
- Push-Button Switches (AREA)
Abstract
A contact RF switch is characterized by comprising a capacitor, an anchor point, a Z type spring, an insulation piece, a contact, and a FR signal line; the capacitor is formed by a movable electrode plate and a fixed electrode plate; the Z type spring comprises a first Z type spring and a second Z type spring; the anchor point comprises a first anchor point and a second anchor point; one end of the first Z type spring is connected with the first anchor point, and the other end is connected with a contact through the insulation piece; the RF signal line is positioned below the contact; the second Z type spring is arranged between the insulation piece and the contact; one end of the second Z type spring is connected with the second anchor point, and the other end of the second Z type spring and the first Z type spring are connected with a connecting rod of the contact; the movable electrode plate and the fixed electrode plate are positioned between the first Z type spring and the insulation piece. The two Z type springs and the movable electrodes and fixed electrode plates are used to realize fast on/off of the RF switch; the contact RF switch is fast, and low in power consumption.
Description
Technical field
The design relates to contact RF switch, belongs to radio frequency electric technical field.
Background technology
Quiet electrically driven (operated) contact mems switch mainly comprises two kinds of structures of vertical and horizontal.Longitudinally contact refers to that switch motion direction is perpendicular to substrate plane, and lateral contact refers to that switch motion direction is parallel to substrate plane.Vertical structure is easily made large-area capacitor plate, provide large actuating force to improve switching speed, but the press-filming damping between large area capacitor plate is also larger, and its switching speed is also restricted; In addition, the fixed polar plate in vertical structure and can need to making respectively by two step process by movable plate electrode, has increased technology difficulty and cost.The advantage of transversary is the entire infrastructure that can simultaneously complete switch and holding wire in a step process, and efficiency is high, and cost is low; Its shortcoming is that capacitor plate area is little, although deattenuation is difficult for obtaining large actuating force, switching speed is not high, need to carry out design optimization.Therefore, design a kind of technique horizontal static simple and that switching speed is high and drive contact micromechanics RF switch, significant.
Summary of the invention
For the deficiencies in the prior art, the design's object is to provide a kind of contact RF switch, by adopting word spring and many group movable polar plates and the fixed polar plate of two, realizes the quick break-make of RF switch.
For achieving the above object, the design realizes by following technological means:
A kind of contact RF switch, it is characterized in that: comprise electric capacity, anchor point, word spring, collets, contact, FR holding wire, described electric capacity is made up of movable polar plate and fixed polar plate, described word spring comprises first word spring and second word spring, and described anchor point comprises the first anchor point and the second anchor point; Word spring one end of described first is connected with the first anchor point, the other end is connected with contact by collets, described RF holding wire is positioned at contact below, between described collets and contact, also be provided with second word spring, word spring one end of described second is connected with the second anchor point, and the other end is connected with the connecting rod of contact with first word spring, and described movable polar plate and fixed polar plate are between first word spring and collets.
Preferably, described a kind of contact RF switch, is characterized in that: described movable polar plate and fixed polar plate are more than two.
Preferably, described a kind of contact RF switch, is characterized in that: described electric capacity, anchor point, word spring, contact, the metal part material of FR holding wire be Au.
Preferably, described a kind of contact RF switch, is characterized in that: the material of described collets is Su8 photoresist.
The invention has the beneficial effects as follows: the design passes through to adopt word spring and many group movable polar plates and the fixed polar plates of two, realizes the quick break-make of RF switch, has advantages of quick, low-power consumption.
Brief description of the drawings
Fig. 1 is that the design forms structural representation.
The implication of drawing reference numeral is as follows: 1 first anchor point, 2-2 fixed polar plate, 2-2 movable polar plate, 3 collets, 4 contacts, 5RF holding wire, the word spring of 6-1 second, the word spring of 6-2 first.
Embodiment
Below in conjunction with Figure of description, design is further described.
As shown in Figure 1, a kind of contact RF switch, it is characterized in that: comprise electric capacity 2, anchor point, word spring 6, collets 3, contact 4, FR holding wire 5, described electric capacity is made up of movable polar plate 2-2 and fixed polar plate 2-1, described word spring comprises first word spring 6-2 and second word spring 6-1, and described anchor point comprises the first anchor point 1-1 and the second anchor point 1-2; Word spring 1-1 one end of described first is connected with the first anchor point 6-2, the other end is connected with contact 4 by collets 3, described RF holding wire position 5 is in contact 4 belows, between described collets 3 and contact 4, also be provided with second word spring 6-1, word spring 6-1 one end of described second is connected with the second anchor point 1-2, and the other end is connected with the connecting rod of contact 3 with first word spring 6-2, and described movable polar plate 2-2 and fixed polar plate 2-1 are between first word spring 6-2 and collets 3.
In the time of additional driving voltage, electrostatic attraction drives and can draw close to fixed polar plate by movable plate electrode, drives contact to contact with RF holding wire, has realized the connection of holding wire; In the time that switch disconnects, under the effect of spring restoring force, contact separates with holding wire, has realized the shutoff of electric current; In this device, adopt many groups fixed polar plate and can movable plate electrode, increased pole plate right opposite long-pending, can obtain larger actuating force, can improve switching speed.Under stress gradient effect, there is warpage in order to suppress structure, adopted two groups of "the" shape spring structures; Meanwhile, this structure has further increased the open close speed of RF switch.
Preferably, described a kind of contact RF switch, is characterized in that: described movable polar plate 2-2 and fixed polar plate 2-1 are more than two.
Preferably, described a kind of contact RF switch, is characterized in that: described electric capacity 2, anchor point 1, word spring 6, contact 4, the metal part material of FR holding wire 5 be Au.
Preferably, described a kind of contact RF switch, is characterized in that: the material of described collets 3 is Su8 photoresist.
SU8 photoresist has good mechanical strength and insulation characterisitic.
More than show and described the design's general principle, principal character and advantage.The technical staff of the industry should understand; the design is not restricted to the described embodiments; the principle that the design is just described of describing in above-described embodiment and specification; do not departing under the prerequisite of the design's spirit and scope; the design also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the design.The claimed scope of the design is defined by appending claims and equivalent thereof.
Claims (4)
1. a contact RF switch, it is characterized in that: comprise electric capacity, anchor point, word spring, collets, contact, FR holding wire, described electric capacity is made up of movable polar plate and fixed polar plate, described word spring comprises first word spring and second word spring, and described anchor point comprises the first anchor point and the second anchor point; Word spring one end of described first is connected with the first anchor point, the other end is connected with contact by collets, described RF holding wire is positioned at contact below, between described collets and contact, also be provided with second word spring, word spring one end of described second is connected with the second anchor point, and the other end is connected with the connecting rod of contact with first word spring, and described movable polar plate and fixed polar plate are between first word spring and collets.
2. a kind of contact RF switch as claimed in claim 1, is characterized in that: described movable polar plate and fixed polar plate are more than two.
3. a kind of contact RF switch as claimed in claim 1, is characterized in that: described electric capacity, anchor point, word spring, contact, the metal part material of FR holding wire be Au.
4. a kind of contact RF switch as claimed in claim 1, is characterized in that: the material of described collets is Su8 photoresist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420150351.6U CN203910686U (en) | 2014-03-31 | 2014-03-31 | Contact RF switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420150351.6U CN203910686U (en) | 2014-03-31 | 2014-03-31 | Contact RF switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910686U true CN203910686U (en) | 2014-10-29 |
Family
ID=51784941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420150351.6U Expired - Fee Related CN203910686U (en) | 2014-03-31 | 2014-03-31 | Contact RF switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956300A (en) * | 2014-03-31 | 2014-07-30 | 苏州锟恩电子科技有限公司 | Contact type RF switch |
-
2014
- 2014-03-31 CN CN201420150351.6U patent/CN203910686U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956300A (en) * | 2014-03-31 | 2014-07-30 | 苏州锟恩电子科技有限公司 | Contact type RF switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150331 |
|
| EXPY | Termination of patent right or utility model |