CN110470970A - A kind of method of dynamic monitoring passive intermodulation - Google Patents
A kind of method of dynamic monitoring passive intermodulation Download PDFInfo
- Publication number
- CN110470970A CN110470970A CN201910613519.XA CN201910613519A CN110470970A CN 110470970 A CN110470970 A CN 110470970A CN 201910613519 A CN201910613519 A CN 201910613519A CN 110470970 A CN110470970 A CN 110470970A
- Authority
- CN
- China
- Prior art keywords
- power
- load
- winding thread
- passive intermodulation
- pad
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Structure Of Telephone Exchanges (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a kind of method of dynamic monitoring passive intermodulation, determines the secondary shunting net winding thread in calibration network figure and be copied to edges of boards test-strips, multiple ground holes are set around it；Load holes are being set close to one end of coupling slit width, power hole is arranged in the other end far from coupling slit width；Power insert hole and power supply shield opening are set around power hole；Setting load pad and load isolation ring, are arranged power pad and isolated from power ring at power hole at load holes；It tests to obtain passive intermodulation value by cable weld load pad and power pad.The present invention is by identification calibration network figure, and automatic addition time shunting net winding thread to edges of boards test-strips carries out ground hole according to certain rule, load holes are arranged, realization dynamic monitoring passive intermodulation.And edges of boards test strip designs are used, figure is small, saves jigsaw space, promotes jigsaw utilization rate；Edges of boards test-strips passive intermodulation value only need to be detected simultaneously, actual production unit will not be scrapped, saves scrap cost.
Description
Technical field
The present invention relates to passive intermodulation technical fields, more particularly, to a kind of method of dynamic monitoring passive intermodulation.
Background technique
Passive intermodulation: refer to that two or more frequencies mix in nonlinear device and just produce spurious signal.
As 5G commercial deployment time closes on, the construction of 5G Base communication facility will be improved day by day.Believed according to China's Industry
The data of net are ceased, 5G base station number will reach 14,000,000 in 2024, and antenna for base station also will increase dramatically.In face of user
Transmission demand real-time for data, a large amount of, the network capacities of 1000 times of 4G LTE systems and the extremely low time delay of 1ms it is extensive
Mimo antenna array system is considered as the most potential transmission technology of 5G.The feeding network of mimo antenna array includes on a large scale
Power division network and calibration network.For realize signal conformance, calibration network for printed circuit board (PCB) Jie's thickness consistency,
Dk consistency, the coupling technologies such as slit width consistency and passive intermodulation (PIM) have higher requirement.
It is designed for different calibration networks, the thick consistency that is situated between, Dk consistency, the monitoring method of coupling slit width consistency are basic
Unanimously, but since passive intermodulation is influenced by combined factors such as material, design, processing, for the figure of different calibration networks design,
Passive intermodulation is difficult to realize uniformly monitor.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of methods of dynamic monitoring passive intermodulation, can be automatic
Identify calibration network figure, the mutual tone pitch of testing passive.
The technical scheme adopted by the invention is that: a kind of method of dynamic monitoring passive intermodulation, comprising the following steps:
Determine the secondary shunting net winding thread in calibration network figure；
It replicates the secondary shunting net winding thread to edges of boards and tests strip area；
Multiple ground holes are set around the secondary shunting net winding thread；
Load holes are set in one end of the close coupling slit width of the secondary shunting net winding thread, in the secondary shunting net winding thread
The other end far from coupling slit width is arranged power hole, the coupling slit width be the secondary shunting net winding thread and main shunting net winding thread it
Between gap；
Power insert hole and power supply shield opening are set around the power hole；
Load pad and load isolation ring are correspondingly arranged at the position of the load holes, at the position of the power hole
It is correspondingly arranged power pad and isolated from power ring；
The load pad and the power pad are welded by cable, obtains passive intermodulation using the testing lines
Value.
Further, the step determines that the secondary shunting net winding thread in calibration network figure specifically includes:
It identifies the main shunting net winding thread in the calibration network figure, determines secondary point close with the main shunting net winding thread
Drift net winding thread.
Further, the main shunting net winding thread is the longest grid line of length in the calibration network figure.
Further, the pitch of holes of multiple ground holes is between 1.5~2.0mm, each ground hole and institute
The distance between time shunting net winding thread is stated between 1.0~1.5mm, the aperture of each ground hole between 0.2~1.0mm it
Between.
Further, the aperture of the load holes is between 0.2~1.0mm, the aperture of the power hole between 0.8~
Between 1.5mm.
Further, the aperture in the power insert hole is between 0.8~1.5mm, the aperture of the power supply shield opening
Between 0.2~0.8mm.
Further, the diameter of the load pad is between 1.0~2.0mm.
Further, the load isolation ring around the load pad one week and closely load pad, it is described
The width of load isolation ring is between 0.5~0.8mm.
Further, the diameter of the power pad is between 0.5~0.8mm.
Further, the isolated from power ring around the power pad one week and closely power pad, it is described
The width of isolated from power ring is between 0.5~0.8mm.
The beneficial effects of the present invention are:
The present invention is directed to different calibration network figures, automatic to add time shunting net winding thread by identifying calibration network figure
To edges of boards test-strips, ground hole is carried out according to certain rule, load holes are arranged, realization dynamic monitoring passive intermodulation.And it uses
Edges of boards test strip designs, figure is small, saves jigsaw space, promotes jigsaw utilization rate；It is passive that only edges of boards test-strips need to be detected simultaneously
Mutual tone pitch will not scrap actual production unit, save scrap cost.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of an embodiment of the method for dynamic monitoring passive intermodulation in the present invention；
Fig. 2 is the structural schematic diagram of alignment network graphic of the present invention；
Fig. 3 is the structural schematic diagram of time shunting net winding thread in the present invention.
In figure, 1, main shunting net winding thread；2, secondary shunting net winding thread；21, secondary shunting net winding thread；3, slit width is coupled；4, it is grounded
Hole；5, load holes；6, power hole；7, power insert hole；8, power supply shield opening.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
Embodiment one
A kind of method for present embodiments providing dynamic monitoring passive intermodulation, as shown in Figure 1, comprising the following steps:
S1. the secondary shunting net winding thread in calibration network figure is determined；
S2. time shunting net winding thread to edges of boards are replicated and test strip area；
S3. multiple ground holes are set around secondary shunting net winding thread；
S4. load holes are set in one end of the close coupling slit width of secondary shunting net winding thread, in the separate of secondary shunting net winding thread
Power hole is arranged in the other end for coupling slit width, wherein coupling slit width is the seam between time shunting net winding thread and main shunting net winding thread
Gap；
S5., power insert hole and power supply shield opening are set around power hole；
S6. it is correspondingly arranged load pad and load isolation ring at load holes, power pad is correspondingly arranged at power hole
With isolated from power ring；
S7. by cable weld load pad and power pad, passive intermodulation value is obtained using testing lines.
In the present embodiment, step S1 determines that the secondary shunting net winding thread in calibration network figure specifically includes: identification calibration net
Main shunting net winding thread in network figure, the determining and close secondary shunting net winding thread of main shunting net winding thread.
In the present embodiment, main shunting net winding thread is the longest grid line of length in calibration network figure.
Fig. 2 is the structural schematic diagram of alignment network graphic of the present invention, and in figure, 1 is main shunting net winding thread, and 2 is time shunt
Grid line, 3 be the gap coupled between slit width, that is, main shunting net winding thread 1 and secondary shunting net winding thread 2.Fig. 3 is secondary point in the present invention
The structural schematic diagram of drift net winding thread.In conjunction with Fig. 2 and Fig. 3, above-mentioned steps S1~S7 is described:
Step S1: the secondary shunting net winding thread in calibration network figure is determined.Specifically, line attribute sieve is carried out using software
Choosing further screens the longest grid line of length in calibration network figure, that is, is main current-dividing network line 1.Recognize main shunting net
After winding thread 1, the determining and close secondary shunting net winding thread 2 of main shunting net winding thread 1.Referring to Fig. 2, in the present embodiment, secondary current-dividing network
Line has 16.
Step S2: time shunting net winding thread to edges of boards are replicated and test strip area.Specifically, each current-dividing network is successively replicated
Edges of boards test strip area beside line 2 to calibration network figure is tested.
Step S3: multiple ground holes are set around secondary shunting net winding thread.Specifically, it referring to Fig. 3, is shunted in Fig. 2 times
For grid line 21, after secondary shunting net winding thread 21 is copied to edges of boards test strip area, it is arranged around secondary shunting net winding thread 21
Multiple ground holes 4.Preferably, the pitch of holes between multiple ground holes 4 is between 1.5~2.0mm, each ground hole 4 with time
The distance between shunting net winding thread 2-1 is between 1.0~1.5mm, and the aperture of each ground hole 4 is between 0.2~1.0mm.
Step S4: being arranged load holes 5 in one end of the close coupling slit width 3 of secondary shunting net winding thread 21, can be with referring to Fig. 2
Find out one end close to coupling slit width 3 for one end below in Fig. 3 shunting net winding thread 21；In the separate of secondary shunting net winding thread 21
The other end setting power hole 6 for coupling slit width 3, referring to Fig. 2, it can be seen that the other end far from coupling slit width 3 is secondary point in Fig. 3
The upper surface of drift net winding thread 21 one end.Preferably, the aperture of load holes 5 is between 0.2~1.0mm, the aperture of power hole 6 between
Between 0.8~1.5mm.
Step S5: power insert hole and power supply shield opening are set around power hole.Specifically, around power hole 6
Power insert hole 7 and power supply shield opening 8 are set.Referring to Fig. 3, it is provided with three power insert holes 7 and four power supply shield openings 8.
Preferably, the aperture in each power insert hole 7 is between 0.8~1.5mm, the aperture of each power supply shield opening 8 between 0.2~
Between 0.8mm.
Step S6: it is correspondingly arranged load pad and load isolation ring at load holes, power supply is correspondingly arranged at power hole
Pad and isolated from power ring.Specifically, load pad (not shown) is correspondingly arranged at the position of top-level graphical load holes 5
With load isolation ring (not shown), wherein load isolation ring surrounds load pad one week and next to load pad, excellent
Selection of land loads the diameter of pad between 1.0~2.0mm, and the width of load isolation ring is between 0.5~0.8mm；The bottom of at
Power pad (not shown) and isolated from power ring (not shown) are correspondingly arranged at the position of layer pattern power hole 6,
In, isolated from power ring surrounds power pad one week and is located next to power pad, and the diameter of power pad is between 0.5~0.8mm
Between, the width of isolated from power ring is between 0.5~0.8mm.
Step S7: by cable weld load pad and power pad, passive intermodulation value is obtained using testing lines.Specifically
Ground passes through cable weld load pad and power pad, a termination load equipment of cable, another termination passive intermodulation respectively
Instrument, centre are load holes and power hole in PCB circuit board, test to obtain PCB using passive intermodulation instrument, cable, load equipment
The passive intermodulation value of circuit board.
The present invention, on the one hand, for different calibration network figures, automatic identification alignment pattern network, automatic addition time
Shunting net winding thread carries out ground hole according to certain rule, load holes are arranged, realization dynamic to edges of boards test-strips (PIM-Coupon)
Passive intermodulation is monitored, applied widely, compatibility is strong；On the other hand, the passive intermodulation value of actual graphical can be preferably reacted,
It is practical；In another aspect, the unit after welding can not deliver goods to client because passive cross modulation test is needed using welding, use
Edges of boards test strip designs, figure is small, saves jigsaw space, promotes jigsaw utilization rate, while it is passive only to detect edges of boards test-strips
Mutual tone pitch will not scrap actual production unit, save scrap cost.
It is to be illustrated to preferable implementation of the invention, but the invention is not limited to the implementation above
Example, those skilled in the art can also make various equivalent variations on the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (10)
1. a kind of method of dynamic monitoring passive intermodulation, which comprises the following steps:
Determine the secondary shunting net winding thread in calibration network figure；
It replicates the secondary shunting net winding thread to edges of boards and tests strip area；
Multiple ground holes are set around the secondary shunting net winding thread；
Load holes are set in one end of the close coupling slit width of the secondary shunting net winding thread, in the separate of the secondary shunting net winding thread
Power hole is arranged in the other end for coupling slit width, and the coupling slit width is between the secondary shunting net winding thread and main shunting net winding thread
Gap；
Power insert hole and power supply shield opening are set around the power hole；
Load pad and load isolation ring are correspondingly arranged at the position of the load holes, it is corresponding at the position of the power hole
Power pad and isolated from power ring are set；
The load pad and the power pad are welded by cable, obtains passive intermodulation value using the testing lines.
2. a kind of method of dynamic monitoring passive intermodulation according to claim 1, which is characterized in that the step determines school
Secondary shunting net winding thread in pseudo-crystalline lattice figure specifically includes:
Identify the main shunting net winding thread in the calibration network figure, the determining and close secondary shunting net of the main shunting net winding thread
Winding thread.
3. a kind of method of dynamic monitoring passive intermodulation according to claim 1 or 2, which is characterized in that the main shunting
Grid line is the longest grid line of length in the calibration network figure.
4. a kind of method of dynamic monitoring passive intermodulation according to claim 3, which is characterized in that multiple ground holes
Pitch of holes between 1.5~2.0mm, the distance between each ground hole and the secondary shunting net winding thread are between 1.0
~1.5mm, the aperture of each ground hole is between 0.2~1.0mm.
5. a kind of method of dynamic monitoring passive intermodulation according to claim 3, which is characterized in that the hole of the load holes
Diameter is between 0.2~1.0mm, and the aperture of the power hole is between 0.8~1.5mm.
6. a kind of method of dynamic monitoring passive intermodulation according to claim 3, which is characterized in that the power insert hole
Aperture between 0.8~1.5mm, the aperture of the power supply shield opening is between 0.2~0.8mm.
7. a kind of method of dynamic monitoring passive intermodulation according to claim 3, which is characterized in that the load pad
Diameter is between 1.0~2.0mm.
8. a kind of method of dynamic monitoring passive intermodulation according to claim 3, which is characterized in that the load isolation ring
Around the load pad one week and closely load pad, the width of the load isolation ring between 0.5~0.8mm it
Between.
9. a kind of method of dynamic monitoring passive intermodulation according to claim 3, which is characterized in that the power pad
Diameter is between 0.5~0.8mm.
10. a kind of method of dynamic monitoring passive intermodulation according to claim 3, which is characterized in that the isolated from power
Ring around the power pad one week and closely power pad, the width of the isolated from power ring is between 0.5~0.8mm
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910613519.XA CN110470970B (en) | 2019-07-09 | 2019-07-09 | Method for dynamically monitoring passive intermodulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910613519.XA CN110470970B (en) | 2019-07-09 | 2019-07-09 | Method for dynamically monitoring passive intermodulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110470970A true CN110470970A (en) | 2019-11-19 |
| CN110470970B CN110470970B (en) | 2021-09-21 |
Family
ID=68507530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910613519.XA Active CN110470970B (en) | 2019-07-09 | 2019-07-09 | Method for dynamically monitoring passive intermodulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110470970B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289808A (en) * | 2020-02-25 | 2020-06-16 | 广州兴森快捷电路科技有限公司 | Method for dynamically monitoring amplitude and phase deviation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133098A (en) * | 2013-05-03 | 2014-11-05 | 英飞凌科技股份有限公司 | Integration of current measurement in wiring structure of an electronic circuit |
| CN105891602A (en) * | 2016-03-29 | 2016-08-24 | 厦门红相电力设备股份有限公司 | GPS shunting phase-shifting test method and system for grounding device |
| US9863987B2 (en) * | 2015-11-03 | 2018-01-09 | Commscope Italy S.R.L. | Apparatus and methods for dynamic passive intermodulation distortion testing |
| CN107942157A (en) * | 2017-10-31 | 2018-04-20 | 广东生益科技股份有限公司 | Passive cross modulation test fixture and device |
| US9977068B1 (en) * | 2015-07-22 | 2018-05-22 | Anritsu Company | Frequency multiplexer for use with instruments for measuring passive intermodulation (PIM) |
| CN108886190A (en) * | 2016-02-05 | 2018-11-23 | 斯宾纳有限公司 | Filter construction for PIM measurement |
| CN208272136U (en) * | 2018-05-28 | 2018-12-21 | 广东通宇通讯股份有限公司 | A kind of feeding network of extensive mimo antenna |
-
2019
- 2019-07-09 CN CN201910613519.XA patent/CN110470970B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133098A (en) * | 2013-05-03 | 2014-11-05 | 英飞凌科技股份有限公司 | Integration of current measurement in wiring structure of an electronic circuit |
| US9977068B1 (en) * | 2015-07-22 | 2018-05-22 | Anritsu Company | Frequency multiplexer for use with instruments for measuring passive intermodulation (PIM) |
| US9863987B2 (en) * | 2015-11-03 | 2018-01-09 | Commscope Italy S.R.L. | Apparatus and methods for dynamic passive intermodulation distortion testing |
| CN108886190A (en) * | 2016-02-05 | 2018-11-23 | 斯宾纳有限公司 | Filter construction for PIM measurement |
| CN105891602A (en) * | 2016-03-29 | 2016-08-24 | 厦门红相电力设备股份有限公司 | GPS shunting phase-shifting test method and system for grounding device |
| CN107942157A (en) * | 2017-10-31 | 2018-04-20 | 广东生益科技股份有限公司 | Passive cross modulation test fixture and device |
| CN208272136U (en) * | 2018-05-28 | 2018-12-21 | 广东通宇通讯股份有限公司 | A kind of feeding network of extensive mimo antenna |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289808A (en) * | 2020-02-25 | 2020-06-16 | 广州兴森快捷电路科技有限公司 | Method for dynamically monitoring amplitude and phase deviation |
| CN111289808B (en) * | 2020-02-25 | 2022-09-13 | 广州兴森快捷电路科技有限公司 | Method for dynamically monitoring amplitude and phase deviation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110470970B (en) | 2021-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105764024A (en) | Method and device for testing handling capacity of wireless device | |
| CN106027170B (en) | The digital miniaturization radio equipment automatic testing equipment of one kind and system | |
| CN111426940A (en) | Test system of radar chip | |
| DE60129970T2 (en) | PROCESS AND ARRANGEMENT FOR TRANSMITTERS / RECEIVERS | |
| CN105162714B (en) | The method for testing performance and system of rf terminal | |
| CN105388367A (en) | Method for characterizing and acquiring electromagnetic environment in narrow and small bay section | |
| CN110470970A (en) | A kind of method of dynamic monitoring passive intermodulation | |
| CN108072776A (en) | Probe card and multi-signal transmission board thereof | |
| DE112009005186T5 (en) | SIGNAL DETECTION DEVICES AND CIRCUIT BOARD | |
| US7173434B2 (en) | Method for determining the RF shielding effectiveness of a shielding structure | |
| CN106546856A (en) | A kind of wave filter integrated test system | |
| DE60217085T2 (en) | PRESSURE APPARATUS, PRESSURE APPARATUS DIAGNOSTIC PROCEDURE AND PRESSURE CONTROL DIAGNOSTIC PROGRAM | |
| CN201586640U (en) | Testing and sorting control system for multi-station sound surface filtering device | |
| CN105830509B (en) | Mobile terminal locating method, base station and node | |
| CN106872790B (en) | Method and system for detecting via hole loss | |
| CN109001617A (en) | ATE test board and electronic component setting method based on ATE test board | |
| CN202396086U (en) | Circuit board impedance strip and circuit board | |
| CN202230136U (en) | PCB impedance test board and in-process PCB | |
| CN115967454A (en) | Wireless communication module inspection method and system for improving inspection efficiency | |
| CN109061435A (en) | A kind of detection device and method of back drill working ability | |
| CN107426923A (en) | A kind of printed circuit board (PCB) and its radio frequency test method | |
| CN108445299A (en) | A kind of insertion loss test-strips | |
| CN110536569A (en) | It is a kind of to avoid the pcb board processing method that layer is inclined after pressing | |
| CN208780787U (en) | A kind of ATE test board | |
| CN106405288A (en) | Method for obtaining electromagnetic transmission matrix of linear impedance stabilization network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |