CN201994247U - Radio frequency switch - Google Patents
Radio frequency switch Download PDFInfo
- Publication number
- CN201994247U CN201994247U CN2010206789085U CN201020678908U CN201994247U CN 201994247 U CN201994247 U CN 201994247U CN 2010206789085 U CN2010206789085 U CN 2010206789085U CN 201020678908 U CN201020678908 U CN 201020678908U CN 201994247 U CN201994247 U CN 201994247U
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- utility
- signal wire
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- radio frequency
- base
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Abstract
The utility model discloses a radio frequency switch, which comprises a base (1), a baseplate (2) mounted above the base (1) and two ground wires (3) arranged on the baseplate (2), and is characterized in that the radio frequency switch further comprises a first signal wire (4) and a second signal wire (5), which are arranged on the baseplate (2), as well as a third signal wire (9) which can be in contact with the first signal wire (4) and the second signal wire (5) simultaneously, wherein the third signal wire (9) is positioned above the baseplate (2), the third signal wire (9) is connected with the base (1) through a PCB (printed circuit board) device (6), the PCB device (6) at least comprises three PCBs (7), and an elastic layer is arranged between adjacent two PCBs (7) respectively. The radio frequency switch is simple in structure and convenient to manufacture; furthermore, lead bonding and impedance matching are not required, so that the radio frequency switch is simple in packaging and low in signal loss.
Description
Technical field
The utility model relates to a kind of switch, what be specifically related to is a kind of radio-frequency (RF) switch.
Background technology
The RF-MEMS switch has excellent isolation and inserts loss compared to the pin diode switch network, therefore can be applied in the business system (satellite system, base station etc.) of national defence or high value.
When traditional radio-frequency (RF) switch is integrated into the PCB circuit in encapsulation, the bonding that need go between, and the lead-in wire bonding can cause impedance not match and extra loss of signal.
The utility model content
At the deficiency that exists on the prior art, the utility model purpose is the radio-frequency (RF) switch that is to provide a kind of do not need to go between bonding and impedance matching, has advantages such as the simple and loss of signal of encapsulation is low.
To achieve these goals, the utility model is to realize by the following technical solutions:
The utility model comprises base, be installed in the substrate of base top and be arranged on two ground wires on the substrate, also comprise first holding wire that is arranged on the substrate and secondary signal line and the 3rd holding wire that can contact simultaneously with first holding wire and secondary signal line, the 3rd holding wire is positioned at the top of substrate, and the 3rd holding wire is connected with base by the pcb board device, the pcb board device comprises three layers of pcb board at least, and is provided with elastic layer between adjacent two pcb boards.
Above-mentioned pcb board device be shaped as pyramid.Making the convenient lead-in wire of pyramid is bonded on the substrate.
Above-mentioned elastic layer is the silicon gel.The silicon gel elastomer is better.
The utility model convenient manufacturing simple in structure, and do not need go between bonding and impedance matching, make that the utility model encapsulation is simple and loss of signal is low; The pcb board of each layer and silicon gel are made the pyramid that area from top to bottom successively reduces, and convenient lead-in wire is bonded on the substrate.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is front view of the present utility model (removing substrate and two ground wires);
Fig. 2 is the vertical view of Fig. 1.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
The utility model comprises the substrate 2 of base 1, semi insulating semiconductor material and is arranged on two ground wires 3 on the substrate 2; Substrate 2 is installed in base 1 top by support 10, and support 10 is fixed on the base 1; The position of two ground wires 3 and shape are identical with existing C PW.
On same straight line and with two ground wires 3, parallel also being provided with first holding wire 4 and secondary signal line 5, the first holding wires 4 and secondary signal line 5 on the substrate 2.
Be provided with on base 1 and be pyramidal pcb board device 6, the upper end of pcb board device 6 is connected with the 3rd holding wire 9, the three holding wires 9 and is positioned at the top of substrate 2 and can contacts simultaneously with first holding wire 4 and secondary signal line 5.
The pcb board 7 of each layer and silicon gel 8 are made the pyramid that area from top to bottom successively reduces, and convenient lead-in wire is bonded on the substrate 2.
Radio-frequency (RF) switch of the present utility model, usually be in normally open, behind making alive on the pcb board 7, will attract each other between the pcb board 7, because silicon gel 8 elasticity are better, so pcb board device 6 integral body will be compressed and sink, at this moment the 3rd holding wire 9 that is made in pcb board device 6 upper ends can be along with pcb board device 6 moves downward, contact simultaneously with first holding wire 4 and secondary signal line 5 until the 3rd holding wire 9, this moment, radio-frequency (RF) switch of the present utility model transferred closure state to, thereby had realized the radio-frequency (RF) switch function.
The utility model convenient manufacturing simple in structure, and do not need go between bonding and impedance matching, make that the utility model encapsulation is simple and loss of signal is low.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. radio-frequency (RF) switch, comprise base (1), be installed in the substrate (2) of base (1) top and be arranged on two ground wires (3) on the substrate (2), it is characterized in that, also comprise first holding wire (4) that is arranged on the substrate (2) and secondary signal line (5) and the 3rd holding wire (9) that can contact simultaneously with first holding wire (4) and secondary signal line (5), described the 3rd holding wire (9) is positioned at the top of substrate (2), and the 3rd holding wire (9) is connected with base (1) by pcb board device (6), described pcb board device (6) comprises three layers of pcb board (7) at least, and is provided with elastic layer between adjacent two pcb boards (7).
2. radio-frequency (RF) switch according to claim 1 is characterized in that, described pcb board device (6) be shaped as pyramid.
3. radio-frequency (RF) switch according to claim 1 is characterized in that, described elastic layer is silicon gel (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206789085U CN201994247U (en) | 2010-12-24 | 2010-12-24 | Radio frequency switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206789085U CN201994247U (en) | 2010-12-24 | 2010-12-24 | Radio frequency switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201994247U true CN201994247U (en) | 2011-09-28 |
Family
ID=44670727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206789085U Expired - Fee Related CN201994247U (en) | 2010-12-24 | 2010-12-24 | Radio frequency switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201994247U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142335A (en) * | 2010-12-24 | 2011-08-03 | 东南大学 | Radio frequency switch |
-
2010
- 2010-12-24 CN CN2010206789085U patent/CN201994247U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142335A (en) * | 2010-12-24 | 2011-08-03 | 东南大学 | Radio frequency switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20121224 |