CN207677699U - A kind of low cost wide band positive slope gain equalization device - Google Patents
A kind of low cost wide band positive slope gain equalization device Download PDFInfo
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- CN207677699U CN207677699U CN201820215013.4U CN201820215013U CN207677699U CN 207677699 U CN207677699 U CN 207677699U CN 201820215013 U CN201820215013 U CN 201820215013U CN 207677699 U CN207677699 U CN 207677699U
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- low cost
- wide band
- positive slope
- gain equalization
- band positive
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Abstract
The utility model discloses a kind of low cost wide band positive slope gain equalization devices, including the microwave-medium in multi-layer PCB top layer is arranged, the micro-strip transmission structure with being provided with metal and by microstrip line formed on the microwave-medium, the centre position of the microstrip line is welded with a ceramic resistor there are gap on the gap（4）, a ceramic condenser is welded by way of stitch welding or parallel weldering on the ceramic resistor.Compared with prior art, the utility model has the characteristics that small package, low cost, easily realization, function admirable, reliability are high.And it is realized by welding ceramics resistance on the microstrip line and ceramic condenser, system input or output signal caused by system gain flatness difference are very inconsistent before solving the problems, such as so that system input or output signal can meet system index in wide-band.
Description
Technical field
The utility model belongs to microwave technical field, and it is equal to be related to a kind of low cost wide band positive slope gain of small-sized package
Weighing apparatus, more particularly to a kind of gainequalizer applied in wideband electronic confrontation and communication system and its module.
Background technology
In radio frequency transmission field, broadband system is the extensive a kind of system of demand in microwave regime.In broadband system,
The gain flatness of signal amplification is one of problem.In order to which bottom line reduces between system and system, between module and module
The problem of being brought due to gain flatness, it is good method that balanced device is added in systems come the gain flatness for improving system
One of.
When two modules or system cascade carry out radio signal transmission, requires, can make since gain flatness does not reach
It obtains input signal or output signal is very inconsistent, system is caused to can not work normally.Product currently on the market exists
0.1GHz-4GHz range interior energies reach the equilibrium of 2dB, and bigger to the requirement of the standing wave of input/output terminal, and actual test has 1dB
Portfolio effect.This kind of product cost currently on the market is larger, and assembles more complicated.
Utility model content
The purpose of this utility model be for broadband system or module gain flatness it is poor, lead to the input of system
The problem of signal or output signal cannot be satisfied system index, it is proposed that a kind of high slope low-cost and easy-to of novel small package is real
Existing balanced device can improve the entire gain flatness of system, meet system index.
To achieve the above object, the utility model provides the following technical solutions：
A kind of low cost wide band positive slope gain equalization device, including the microwave-medium in multi-layer PCB top layer is set, it is described
Micro-strip transmission structure metal is provided on microwave-medium and by microstrip line formed, the centre position of the microstrip line there are
Gap is welded with a ceramic resistor on the gap, a pottery is welded by way of stitch welding or parallel weldering on the ceramic resistor
Porcelain capacitance.
The ceramic resistor and ceramic condenser are all made of 0402 small package structure.
An attenuator is respectively added on the input terminal and output end of the micro-strip transmission structure.
The attenuator is built by three resistance.
The resistance uses 0603 encapsulating structure.
Advantageous effect：Compared with prior art, the utility model have small package, low cost, easily realization, function admirable,
The features such as reliability is high.And it is realized by welding ceramics resistance on the microstrip line and ceramic condenser, system gain before solving
System input or the very inconsistent problem of output signal caused by flatness difference so that in wide-band system input or
Output signal can meet system index.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel embodiment for explaining the utility model, does not constitute limitations of the present invention together.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the increase in the structural schematic diagram after attenuator.
Fig. 4 is the vertical view of Fig. 3.
Figure label：1- microwave-mediums, 2- micro-strip transmission structures, the gaps 3-, 4- ceramic resistors, 5- metals, 6- ceramics
Capacitance, 7- resistance, 8-PCB.
Specific implementation mode
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
As depicted in figs. 1 and 2, a kind of low cost wide band positive slope gain equalization device, including setting are pushed up in multi-layer PCB 8
The microwave-medium 1 of layer and the metal that is arranged on microwave-medium 15, according to the dielectric constant and thickness h of microwave-medium 1,
The micro-strip transmission structure 2 being made of microstrip line is set on microwave-medium 1, and the line width for concurrently setting microstrip line is W, in microstrip line
The gap 3 that a width is W1 is designed in centre position, and a ceramic resistor 4 is welded on gap 3, is passed through on ceramic resistor 4
Stitch welding mode welds a ceramic condenser 6.Ceramic resistor 4 and ceramic condenser 6 are all made of 0402 small package structure.In order to improve equilibrium
The standing wave of device reaches better portfolio effect, and a decaying is respectively added on the input terminal and output end of micro-strip transmission structure 2
Device, attenuator are built by three resistance 7（As shown in Figure 3 and Figure 4）, three resistance 7 are using 0603 encapsulating structure.
Claims (5)
1. a kind of low cost wide band positive slope gain equalization device, including be arranged in multi-layer PCB（8）The microwave-medium of top layer（1）,
The microwave-medium（1）On with being provided with metal（5）With the micro-strip transmission structure being made of microstrip line（2）, it is characterised in that：Institute
Stating the centre position of microstrip line, there are gaps（3）, the gap（3）On be welded with a ceramic resistor（4）, the ceramic resistor
（4）On weld a ceramic condenser by way of stitch welding or parallel weldering（6）.
2. a kind of low cost wide band positive slope gain equalization device according to claim 1, it is characterised in that：The ceramics
Resistance（4）And ceramic condenser（6）It is all made of 0402 small package structure.
3. a kind of low cost wide band positive slope gain equalization device according to claim 1 or 2, it is characterised in that：It is described
Micro-strip transmission structure（2）Input terminal and output end on respectively add an attenuator.
4. a kind of low cost wide band positive slope gain equalization device according to claim 3, it is characterised in that：The decaying
Device is by three resistance（7）It builds.
5. a kind of low cost wide band positive slope gain equalization device according to claim 4, it is characterised in that：The resistance
（7）Using 0603 encapsulating structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820215013.4U CN207677699U (en) | 2018-02-07 | 2018-02-07 | A kind of low cost wide band positive slope gain equalization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820215013.4U CN207677699U (en) | 2018-02-07 | 2018-02-07 | A kind of low cost wide band positive slope gain equalization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207677699U true CN207677699U (en) | 2018-07-31 |
Family
ID=62973813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820215013.4U Active CN207677699U (en) | 2018-02-07 | 2018-02-07 | A kind of low cost wide band positive slope gain equalization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207677699U (en) |
-
2018
- 2018-02-07 CN CN201820215013.4U patent/CN207677699U/en active Active
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