CN206756876U - A kind of test fixture - Google Patents
A kind of test fixture Download PDFInfo
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- CN206756876U CN206756876U CN201620773836.XU CN201620773836U CN206756876U CN 206756876 U CN206756876 U CN 206756876U CN 201620773836 U CN201620773836 U CN 201620773836U CN 206756876 U CN206756876 U CN 206756876U
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- test circuit
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- fixture
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Abstract
The utility model discloses a kind of test fixture, including base and test circuit plate, the test circuit plate is fixedly mounted on the base upper surface；Wherein, it is provided with device rest area in the test circuit plate front, includes that accordingly fixture pin, its fixture pin 1 are directly connected with floor file layer with the 1J pins of power divider/synthesizer LRPS 2 in the device rest area, fixture pin 2,5 is hanging；Meanwhile fixture pin 3,4,6 is connected with a microstrip line respectively, the other end of every microstrip line passes described base by the port being arranged on the base, and is connected with high-frequency adapter device.Therefore, the utility model disclosure satisfy that the 1J power divider/synthesizer test fixtures of LRPS 2 of no-welding type test request.
Description
Technical field
Reliability screening and testing field are the utility model is related to, particularly relates to a kind of test fixture.
Background technology
Power divider/synthesizer is a kind of multiport network of power transmission reciprocity, and power divider is will to synthesize port
Input signal power be divided into equal or different two-way power from distribution port output.Conversely, it is to divide during power combiner
Equal or different two-way or multichannel power combing with port export to synthesis port.
In recent years, with the continuous development that electronic system Highgrade integration and component minimize, power divider/synthesizer
LRPS-2-1J with its small volume, insertion loss is low, isolation is high the advantages that be widely used in electronic system, its
Outline structural diagram is as shown in Figure 1.Wherein, pin 6 is synthesis port, and pin 3,4 is distribution port, and pin 1 is earth terminal
Mouthful.
LRPS-2-1J is a kind of surface-mount type power divider/synthesizer, and 5-500MHz, the Ω of impedance 50 are covered using frequency range.Its
Length and width is 9.91 ± 0.15mm, 7.87 ± 0.3mm, and pin widths are only 1.14mm so as to LRPS-2-1J
The difficulty of test of power divider/synthesizer is larger.Circuit mainly currently is passed through to the test of LRPS-2-1J power divider/synthesizers
The mode of plate weld is realized, but welding can cause unnecessary injury to device, does not meet component reliability screening and test
Requirement.
Utility model content
In view of this, the purpose of this utility model is to propose a kind of test fixture, disclosure satisfy that no-welding type test will
The LRPS-2-1J power divider/synthesizer test fixtures asked.
Based on above-mentioned purpose test fixture provided by the utility model, including base and test circuit plate, the test electricity
Road plate is fixedly mounted on the base upper surface；
Wherein, device rest area is provided with the test circuit plate front, is included in the device rest area and power
Accordingly fixture pin, its fixture pin 1 are directly connected distribution/synthesizer LRPS-2-1J pins with floor file layer, fixture pin
2nd, 5 is hanging；Meanwhile fixture pin 3,4,6 is connected with a microstrip line respectively, the other end of every microstrip line is by being arranged on
State the port on base and pass described base, and be connected with high-frequency adapter device.
In some embodiments of the utility model, the described positive metal level of test circuit plate is adopted with metal layer on back
Realized and electrically connected with via, and the test circuit back does not lay solder mask.
In some embodiments of the utility model, three microstrip lines are each passed through the corresponding ports on base,
Respectively with coaxially turning the welding of micro-strip high-frequency adapter device.
In some embodiments of the utility model, the width design of the microstrip line is 1.5mm, is designed as around the corner
45 ° of angles of chamfer.
It is fixed on the testing cover plate centre position in some embodiments of the utility model, in addition to testing cover plate
Elastic crimping device is installed, and the testing cover plate is buckled on the upper surface of the test circuit plate.
In some embodiments of the utility model, the testing cover plate is process by brass, surface gold-plating.
In some embodiments of the utility model, device placement is provided with the middle position of the test circuit plate
Area.
In some embodiments of the utility model, the base is process by brass, surface gold-plating.
In some embodiments of the utility model, the test circuit plate is screwed in the upper table of the base
Face.
From the above it can be seen that test fixture provided by the utility model, is fixed by the test circuit plate and pacified
Mounted in the base upper surface；Wherein, device rest area is provided with the test circuit plate front, in the device rest area
Including with power divider/synthesizer LRPS-2-1J pins accordingly fixture pin, its fixture pin 1 directly with floor file layer phase
Even, fixture pin 2,5 is hanging；Meanwhile fixture pin 3,4,6 is connected with a microstrip line respectively, the other end of every microstrip line
Described base is passed by the port being arranged on the base, and is connected with high-frequency adapter device.So as to described test clip
Tool is based on radio frequency EDA electromagnetic software emulation technologies, can meet the test of LRPS-2-1J power divider/synthesizer no-welding types
It is required that and there is higher measuring accuracy.
Brief description of the drawings
Fig. 1 is power divider/synthesizer LRPS-2-1J outline structural diagrams in the prior art；
Fig. 2 is the structural representation of the utility model embodiment test fixture；
Fig. 3 is the covering plate structure schematic diagram of the utility model embodiment test fixture.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, below in conjunction with specific embodiment, and
Referring to the drawings, the utility model is further described.
As shown in fig.2, being the structural representation of the utility model embodiment test fixture, described test fixture includes
Base 202 and test circuit plate 203.Wherein, the test circuit plate 203 is fixedly mounted on the upper surface of base 202.Preferably
Ground, the base 202 of the test fixture are process by brass, and gold-plated processing is taken on surface.Preferably, test circuit plate 203 is logical
Cross the upper surface that screw is fixed on base 202.
Electrically connected in addition, described 203 positive metal level of test circuit plate is realized with metal layer on back using via, and
And the back side of test circuit plate 203 does not lay solder mask, it is connected with base 202 and ensures good earth.In the front of test circuit plate 203
Device rest area 205 is provided with, it is preferred that being provided with device rest area 205 on the middle position of test circuit plate 203.Its
Including accordingly fixture pin, wherein fixture draw with power divider/synthesizer LRPS-2-1J pins in device rest area 205
Pin 1 is directly connected with floor file layer, and fixture pin 2,5 is hanging.Meanwhile fixture pin 3,4,6 respectively with a phase of microstrip line 204
Even, the other end of every microstrip line 204 passes described base 202 by the port being arranged on base 202, and turns with high frequency
Device 201 is connect to connect.Preferably, three microstrip lines 204 are each passed through the corresponding ports on base 202, respectively with coaxially turning micro-
Band high-frequency adapter device 201 welds.
Preferably, in order to ensure the impedance matching of the test circuit plate 203, the width design of microstrip line 204 is
1.5mm, 45 ° of angles of chamfer are designed as around the corner.As can be seen that the test circuit plate 203 of test fixture is the micro- of impedance matching
Tape test circuit board 203, the test fixture is enabled to realize matches impedances with power divider/synthesizer LRPS-2-1J.
Therefore, power divider/synthesizer LRPS-2-1J is being tested using test fixture described in the utility model
When, the fixture pin that the pin for testing device is corresponded to the device rest area 205 of test circuit plate 203 is installed.Also, make survey
Examination device pin 1 be grounded, 3,4,6 three in device pin connects the input/output port of external tester, make signal from
The pin 6 of test device inputs, and pin 3,4 exports, its measurable insertion loss, amplitude imbalance degree and phase unbalance degree.
Afterwards, 50 Ω loads are connect to pin 6, tester, its measurable isolation is connect in pin 3,4 two-ports.
As another embodiment of the present utility model, LRPS-2-1J power divider/synthesizers use frequency range covering 5-
500MHz, in order to further improve the reliability of test fixture, prevent influence of the external electromagnetic ripple to test, described test clip
Tool also includes testing cover plate, as shown in Figure 3.Wherein, it is installed with elastic crimping device on the testing cover plate centre position
206, primarily serve crimping device effect.When and the testing cover plate be buckled on the upper surface of the test circuit plate 203 when,
Elastic crimping device 206 can ensure testing cover plate and the good contact of test circuit plate 203.
It is preferred that the testing cover plate is process by brass, gold-plated processing is done on surface, and it is outer that testing cover plate mainly plays shielding
The effect of boundary's electromagnetic signal.
It should also be noted that, when testing LRPS-2-1J power divider/synthesizer unit for electrical property parameters, mainly
The hardware device used is Network Analyzer and the test cable to match.During test, first by Network Analyzer and test electricity
The system of cable composition is calibrated, the test error that main calibration test equipment and test cable introduce in itself.Secondly, will
The test circuit plate 203 of LRPS-2-1J power divider/synthesizer test fixtures accesses test system, places test device in survey
The relevant position of circuit board 203 is tried, and covers tightly testing cover plate, you can is realized to LRPS-2-1J power divider/synthesizer electrical properties
The test of parameter.
It can thus be seen that traditional method of testing mainly realizes that testing efficiency is low by way of welding circuit board, together
When welding unnecessary injury can be caused to device, be not suitable for component reliability screening and the requirement of test, and this practicality
The test fixture of new realization solves these problems well, and the application of the invention can improve device in batch production process
Testing efficiency and measuring accuracy；Also, simple in construction, test is reliable, can realize to LRPS-2-1J power divider/synthesizers
More accurate test；Compared with conventional test methodologies, the method has Test coverage wide frequency range, measuring accuracy height, to quilt
The advantages that surveying device not damaged；Finally, whole described test fixture is simple and compact for structure, powerful, and maintenance and repair is easy,
Use cost is lower, more energy efficient environmental protection.
Those of ordinary skills in the art should understand that：The foregoing is only specific embodiment of the utility model and
, the utility model is not limited to, it is all within the spirit and principles of the utility model, it is any modification for being made, equivalent
Replace, improve etc., it should be included within the scope of protection of the utility model.
Claims (9)
1. a kind of test fixture, it is characterised in that including base and test circuit plate, the test circuit plate is fixedly mounted on institute
State base upper surface；
Wherein, be provided with device rest area in the test circuit plate front, include in the device rest area with power distribution/
Accordingly fixture pin, its fixture pin 1 are directly connected synthesizer LRPS-2-1J pins with floor file layer, and fixture pin 2,5 is outstanding
It is empty；Meanwhile fixture pin 3,4,6 is connected with a microstrip line respectively, the other end of every microstrip line is by being arranged on the bottom
Port on seat passes described base, and is connected with high-frequency adapter device.
2. test fixture according to claim 1, it is characterised in that the described positive metal level of test circuit plate and the back of the body
Face metal level realizes electrical connection using via, and the test circuit back does not lay solder mask.
3. test fixture according to claim 1, it is characterised in that three microstrip lines are each passed through on base
Corresponding ports, respectively with coaxially turning the welding of micro-strip high-frequency adapter device.
4. test fixture according to claim 3, it is characterised in that the width design of the microstrip line is 1.5mm, is being turned
45 ° of angles of chamfer are designed as at angle.
5. test fixture according to claim 1, it is characterised in that also including testing cover plate, among the testing cover plate
Elastic crimping device is installed with position, and the testing cover plate is buckled on the upper surface of the test circuit plate.
6. test fixture according to claim 1, it is characterised in that the testing cover plate is process by brass, surface
It is gold-plated.
7. test fixture according to claim 1, it is characterised in that set on the middle position of the test circuit plate
There is device rest area.
8. test fixture according to claim 1, it is characterised in that the base is process by brass, surface gold-plating.
9. according to the test fixture described in claim 1 to 7 any one, it is characterised in that the test circuit plate passes through spiral shell
Silk is fixed on the upper surface of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620773836.XU CN206756876U (en) | 2016-07-21 | 2016-07-21 | A kind of test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620773836.XU CN206756876U (en) | 2016-07-21 | 2016-07-21 | A kind of test fixture |
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| Publication Number | Publication Date |
|---|---|
| CN206756876U true CN206756876U (en) | 2017-12-15 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620773836.XU Active CN206756876U (en) | 2016-07-21 | 2016-07-21 | A kind of test fixture |
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| CN (1) | CN206756876U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110456246A (en) * | 2019-06-18 | 2019-11-15 | 天津工业大学 | A kind of the test circuit and compression bonding apparatus of high frequency power semiconductor devices |
| CN117452176A (en) * | 2023-12-25 | 2024-01-26 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Device power resistance test system, method and fixture |
-
2016
- 2016-07-21 CN CN201620773836.XU patent/CN206756876U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110456246A (en) * | 2019-06-18 | 2019-11-15 | 天津工业大学 | A kind of the test circuit and compression bonding apparatus of high frequency power semiconductor devices |
| CN117452176A (en) * | 2023-12-25 | 2024-01-26 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Device power resistance test system, method and fixture |
| CN117452176B (en) * | 2023-12-25 | 2024-04-02 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Device power resistance test system, method and fixture |
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