CN202034979U - Repeater - Google Patents
Repeater Download PDFInfo
- Publication number
- CN202034979U CN202034979U CN2011201034986U CN201120103498U CN202034979U CN 202034979 U CN202034979 U CN 202034979U CN 2011201034986 U CN2011201034986 U CN 2011201034986U CN 201120103498 U CN201120103498 U CN 201120103498U CN 202034979 U CN202034979 U CN 202034979U
- Authority
- CN
- China
- Prior art keywords
- repeater
- wave filter
- acoustic wave
- surface acoustic
- power amplifier
- 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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Abstract
The utility model discloses a repeater which is characterized by comprising four matchers, unidirectional acoustic surface wave filters and a power amplifier, wherein the input terminal of the repeater is connected with a first unidirectional acoustic surface wave filter by a first matcher; the first unidirectional acoustic surface wave filter is connected with the power amplifier by a second matcher; the power amplifier is connected with a second unidirectional acoustic surface wave filter by a third matcher; and the second unidirectional acoustic surface wave filter is connected with the output terminal of the repeater by a fourth matcher. The repeater has a larger dynamic scope, can reduce intermodulation distortion, and has good thermal stability and high working reliability.
Description
Technical field
The utility model relates to a kind of high-performance repeater.
Background technology
Repeater (RP repeater) is a kind of device that connects network line, is usually used in the two-way forwarding work of physical signalling between two network nodes.Repeater is the simplest network interconnection device, mainly finishes the function of physical layer, is responsible on the physical layer of two nodes step-by-step and transmits information, finishes the duplicating of signal, adjustment and enlarging function, prolongs the length of network with this.Owing to there is loss, Chuan Shu signal power can decay gradually on the line, will cause distorted signals when decaying to a certain degree, therefore can cause receiving mistake.Repeater designs for addressing this problem.It finishes the connection of physical circuit, and the signal of decaying is amplified, and keeps identical with former data.Existing repeater dynamic range is little, and crosstalk and intermodulation distortion are big, and poor stability has significant limitation.
Summary of the invention
The utility model purpose is: a kind of bigger dynamic range that has is provided, can reduces the crosstalk and the intermodulation distortion of repeater, have good thermal stability, the repeater that functional reliability is high.
The technical solution of the utility model is: a kind of repeater, it is characterized in that, comprise adaptation, unidirectional surface acoustic wave filter and power amplifier, the input of described repeater is linked into first unidirectional surface acoustic wave filter by first adaptation, described first unidirectional surface acoustic wave filter connects power amplifier by second adaptation again, power amplifier links to each other with second unidirectional surface acoustic wave filter by the 3rd adaptation, and described second unidirectional surface acoustic wave filter links to each other with the output of repeater by the 4th adaptation again.
Further, described power amplifier is a dual-stage amplifier.
Further, described Surface Acoustic Wave Filter is the one-way tape bandpass filter.
The utility model has the advantages that:
1. the present invention has bigger dynamic range.
2. the present invention can reduce the crosstalk and the intermodulation distortion of repeater.
3. the present invention has good thermal stability, the functional reliability height.
4. the present invention helps realizing electronics miniaturization.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the structure chart of repeater of the present utility model.
Fig. 2 is the structure chart of power amplifier of the present utility model.
Fig. 3 is a Surface Acoustic Wave Filter structure chart of the present utility model.
Embodiment
Embodiment: as shown in Figure 1, 2, 3, input signal is from input 1 input, arrive the logical Surface Acoustic Wave Filter of one-way tape 3 backs through adaptation 2 and arrive adaptation 4, arrive PA(Power Amplifier through adaptation 4, power amplifier) 5, via adaptation 6, one-way tape lead to Surface Acoustic Wave Filter 7 from the signal of PA5 output, and adaptation 8 is exported by output port 9.The logical Surface Acoustic Wave Filter 3 of one-way tape is made up of the input transducer 32 and the output transducer 33 that comprise on substrate 31 and the substrate 31, and input transducer 32 is made up of electrode 321 and finger 322.PA is a dual-stage amplifier, is respectively 1 stage 51 and 2 stage 52.
Logical Surface Acoustic Wave Filter of band among the present invention and PA can adopt the prior art scheme.Adopt the logical Surface Acoustic Wave Filter of lithium niobate band to realize filtering in the example of the present invention.PA is the designed PA of Suzhou Ying Nuoxun company in the example of the present invention, is numbered INXGB25402300941.This PA is made of the HBT transistor, and gain G is 30dB, and bandwidth is 80MHz.Wherein, first order size is 320um
2
, second level size is 2500 um
2
The first order mainly act as amplifying signal, regulate input impedance, realize automatic gain control; The further amplifying signal in the second level guarantees to reach sufficiently high gain.The invention is not restricted to the concrete model described in the literary composition, logical Surface Acoustic Wave Filter of other satisfactory bands and PA also comprise wherein.
Claims (3)
1.
A kind of repeater, it is characterized in that, comprise adaptation, Surface Acoustic Wave Filter and power amplifier, the input of described repeater is linked into first unidirectional surface acoustic wave filter by first adaptation, described first unidirectional surface acoustic wave filter connects power amplifier by second adaptation again, power amplifier links to each other with second unidirectional surface acoustic wave filter by the 3rd adaptation, and described second unidirectional surface acoustic wave filter links to each other with the output of repeater by the 4th adaptation again.
2.
Repeater according to claim 1 is characterized in that, described power amplifier is a dual-stage amplifier.
3.
Repeater according to claim 1 and 2 is characterized in that, described Surface Acoustic Wave Filter is the one-way tape bandpass filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201034986U CN202034979U (en) | 2011-04-11 | 2011-04-11 | Repeater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201034986U CN202034979U (en) | 2011-04-11 | 2011-04-11 | Repeater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202034979U true CN202034979U (en) | 2011-11-09 |
Family
ID=44897262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201034986U Expired - Fee Related CN202034979U (en) | 2011-04-11 | 2011-04-11 | Repeater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202034979U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142882A (en) * | 2011-04-11 | 2011-08-03 | 苏州英诺迅科技有限公司 | Relay |
| CN103825609A (en) * | 2012-11-16 | 2014-05-28 | 晨星半导体股份有限公司 | Communication system and direct-conversion transmitter thereof |
-
2011
- 2011-04-11 CN CN2011201034986U patent/CN202034979U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142882A (en) * | 2011-04-11 | 2011-08-03 | 苏州英诺迅科技有限公司 | Relay |
| CN103825609A (en) * | 2012-11-16 | 2014-05-28 | 晨星半导体股份有限公司 | Communication system and direct-conversion transmitter thereof |
| CN103825609B (en) * | 2012-11-16 | 2018-04-27 | 晨星半导体股份有限公司 | Communication system and its directly change conveyer |
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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: 20111109 Termination date: 20130411 |