CN1265685C - High Frequency Circuit Board with Signal Pickup Pad and Its Measurement Tool - Google Patents
High Frequency Circuit Board with Signal Pickup Pad and Its Measurement Tool Download PDFInfo
- Publication number
- CN1265685C CN1265685C CN 03138339 CN03138339A CN1265685C CN 1265685 C CN1265685 C CN 1265685C CN 03138339 CN03138339 CN 03138339 CN 03138339 A CN03138339 A CN 03138339A CN 1265685 C CN1265685 C CN 1265685C
- Authority
- CN
- China
- Prior art keywords
- circuit board
- signal
- signal acquisition
- holding wire
- frequency circuit
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- 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
Links
- 238000005259 measurement Methods 0.000 title description 10
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 239000000523 sample Substances 0.000 claims abstract description 23
- 239000004922 lacquer Substances 0.000 claims description 24
- 238000003466 welding Methods 0.000 claims description 24
- 239000000758 substrate Substances 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 10
- 238000004891 communication Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Measuring Leads Or Probes (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The invention relates to a high-frequency circuit board with signal acquisition pads and a measuring tool thereof. The transmission line set has a signal line and a ground plane or a ground line on both sides of the signal line, and the signal capturing pad set has three contact pads electrically connected to the signal line and the two ground planes respectively. The probe connected with the network analyzer is contacted with the three contact pads at the same time, so that the transmission signal in the signal line can be correctly captured for the network analyzer to measure and analyze the high-frequency signal.
Description
Technical field
The present invention relates to a kind of high-frequency circuit board and survey tool thereof, particularly relate to a kind of high-frequency circuit board and survey tool thereof that can come the high-frequency signal of measuring circuit plate by the signal acquisition pad.
Background technology
Along with the continuous development innovation of wireless communication technique, the use of mobile phone has become one of indispensable communication tool of modern, and WLAN (wireless LAN WLAN) also has the trend that replaces wired local area network gradually.In addition, no matter be the radio communication product that is applied to WLAN or bluetooth (bluetooth) technology, for example wireless personal digital assistant device, Wireless Keyboard, wireless mouse or other information household appliances (InformationApplication miscellaneous, IA) product also is widely used, makes radio communication product nowadays just like become one of necessity of people's life.
General radio communication product all comprises high-frequency electronic element and antenna, and this high-frequency electronic element and antenna need be fixed and be electrically connected on the circuit board, and then forms a microwave circuit (microwave circuit) with specific function.Fig. 1 is the schematic appearance of existing high-frequency circuit board, and this circuit board 10 is to fix several electronic components 11 on the multilager base plate of metallic circuit (substrate) 19 having.Right-hand member at circuit board 10 is provided with several external connector 12, and this external connector 12 can be online by the system or the main frame of socket or winding displacement and outside.
Need cover one deck welding resistance lacquer (solder mask) on the surface of substrate 19 to protect outermost wiring (conductor pattern).Fig. 1 upper left corner part is that welding resistance is coated with lacquer strip off to show the wiring of lower floor, wherein comprises the ground plane 13 in two zones and is positioned at middle signal line 14.One end of this holding wire 14 and the coaxial connector of belt switch (coaxial connectors withswitch; Or can be described as interrupt switch) 15 join and the other end connects a joint 16.In addition, an antenna 18 is electrically connected by a coaxial cable line 17 and this joint 16.
Fig. 2 is the schematic diagram that prior art is used for the transmission signals of measuring circuit plate 10.Prior art is to adopt a kind of measuring probe (measurement probe) 21 of special use to insert in the coaxial connector 15 of belt switch, and this measuring probe 21 can be by the transmission signals on the coaxial connector 15 acquisition circuit boards 10 of belt switch.Transmission signals can be sent to network analyzer 80 simultaneously, and is carried out the measurement and the analysis of various high frequency electrical characteristics by network analyzer 80.But mostly this surveying work is to come to carry out at circuit board 10 unassembled one-tenth radio communication products, so the coaxial connector 15 of its inner belt switch can't be used again after radio communication product is finished, that is it is the element of a transitional purposes, but is necessary expenditure on material cost.
In sum, the high-frequency circuit board that presses for a kind of simpler and easy, low cost and tool measurement function on the market solves the problems referred to above.
Summary of the invention
Main purpose of the present invention provides a kind of high-frequency circuit board of tool signal acquisition pad, it is to form one group of signal acquisition pad on circuit board, do not need to establish in addition connector or switch and just can effectively reduce the material cost of manufacturing by high frequency signals transmitted on the signal acquisition pad measuring circuit plate.
Second purpose of the present invention provides the survey tool of easy high-frequency circuit board, with the coaxial fitting is that basic part reprocessing just can be made into a measuring probe, this measuring probe and HF measurement system is online, and the signal acquisition pad on the contact circuit plate just can be finished the work of measurement.
For achieving the above object, the present invention discloses a kind of high-frequency circuit board and survey tool thereof of tool signal acquisition pad, and this circuit board is provided with at least one group of transmission line and one group of signal acquisition pad.This group transmission line has a holding wire and is positioned at the ground plane or the earth connection of these holding wire both sides, and this group signal acquisition spacer has three contact mats, and these three contact mats are electrically connected with this holding wire and two ground planes respectively.The survey tool that network analyzer is linked contacts this three contact mats simultaneously, just can correctly capture the transmission signals in this holding wire, carries out the measurement and the analysis of signal for network analyzer.
Wherein this survey tool is to extend two grounded probes on the ground connection housing of coaxial fitting, and the coaxial line with coaxial fitting is defined as signal probe again, thereby forms the probe of measurement high-frequency circuit board of the present invention.
According to an aspect of the present invention, provide a kind of high-frequency circuit board of tool signal acquisition pad, comprise:
At least one group of transmission line has a holding wire and at least one ground plane, and described holding wire is connected with an antenna;
The welding resistance lacquer, described welding resistance lacquer covers described holding wire and described at least one ground plane; And
At least one group of signal acquisition pad is located at the surface that described welding resistance is coated with lacquer, and this signal acquisition pad comprises:
One signal contact mat is electrically connected with described holding wire; And
At least one ground connection contact mat is electrically connected with described at least one ground plane.
According to one embodiment of present invention, described transmission line is positioned at the lower floor of this signal acquisition pad.
According to an aspect of the present invention, provide a kind of survey tool of high-frequency circuit board of tool signal acquisition pad, described high-frequency circuit board comprises:
At least one group of transmission line has a holding wire and at least one ground plane, and described holding wire is connected with an antenna;
The welding resistance lacquer, described welding resistance lacquer covers described holding wire and described at least one ground plane; And
At least one group of signal acquisition pad is located at the surface that described welding resistance is coated with lacquer, and this signal acquisition pad comprises:
One signal contact mat is electrically connected with described holding wire; And
At least one ground connection contact mat is electrically connected with described at least one ground plane;
Described survey tool comprises:
One coaxial fitting has a grounded part and an axial line that protrudes; And
At least one grounded probe is used to be electrically connected to the grounded part of this coaxial fitting;
Wherein, contact described signal contact point and described at least one ground connection contact mat of the signal acquisition pad of described high-frequency circuit board respectively by this axial line and at least one grounded probe, and then capture the transmission signals of this high-frequency circuit board.
According to one embodiment of present invention, described survey tool also comprises a metal extension, and the below of described coaxial fitting is located in this metal extension, and combines with the grounded part of this coaxial fitting.
According to one embodiment of present invention, described grounded probe is fixed in the surface of this metal extension.
According to one embodiment of present invention, described coaxial fitting is to adopt sub-miniature A connector, sub-miniature B connector, sub-miniature C connector or BNC connector.
According to a further aspect in the invention, provide a kind of survey tool of high-frequency circuit board of tool signal acquisition pad, described high-frequency circuit board comprises:
At least one group of transmission line has a holding wire and at least one ground plane, and described holding wire is connected with an antenna;
The welding resistance lacquer, described welding resistance lacquer covers described holding wire and described at least one ground plane; And
At least one group of signal acquisition pad is located at the surface that described welding resistance is coated with lacquer, and this signal acquisition pad comprises:
One signal contact mat is electrically connected with described holding wire; And
At least one ground connection contact mat is electrically connected with described at least one ground plane;
Described survey tool comprises:
One coaxial fitting has grounded part and axial line; And
One substrate, surface thereof engages with described coaxial fitting, and another surface is provided with a signal electrode and at least one grounding electrode; It is characterized in that described signal electrode and this axial line are electrically connected, this grounding electrode is electrically connected with this grounded part;
Wherein contact described signal contact mat and described at least one ground connection contact mat of the signal acquisition pad of this high-frequency circuit board respectively, and then capture the transmission signals of this high-frequency circuit board by described signal electrode and described at least one grounding electrode.
Description of drawings
The present invention will illustrate according to accompanying drawing, wherein:
Fig. 1 is the schematic appearance of existing high-frequency circuit board;
Fig. 2 is a schematic diagram of measuring the transmission signals of available circuit plate;
Fig. 3 is the outside drawing of the high-frequency circuit board of tool signal acquisition pad of the present invention;
Fig. 4 is the schematic appearance of survey tool of the present invention;
Fig. 5 is the schematic diagram that circuit board of the present invention is measured operation;
Fig. 6 is the schematic appearance of another preferred embodiment of survey tool of the present invention.
Component symbol explanation among the figure:
30 circuit boards
31 electronic components
32 external connector
33 transmission lines, 331 holding wires, 332,333 ground planes
34 signal acquisition pads, 341 signal contact mats, 342,343 ground connection contact mats
36 joints
37 welding resistances lacquer
39 substrates
40 survey tools
41 signal probes
42,43 grounded probes
44 sub-miniature A connectors, 441 grounded parts
45 metal extension boards
51 SMA female joints
52 coaxial wires
60 survey tools
61 signal electrodes
62,63 grounding electrodes
64 sub-miniature A connectors, 641 axial lines
65 substrates
80 network analyzers
Embodiment
Fig. 3 is the outside drawing of the high-frequency circuit board of tool signal acquisition pad of the present invention.This circuit board 30 is to fix several electronic components 31 on the multilager base plate 39 with metallic circuit, and its right-hand member is provided with several external connector 32, and this external connector 32 can be online by the system or the main frame of socket or winding displacement and outside.
The surface of substrate 39 generally all needs to cover one deck welding resistance lacquer 37 to protect outermost wiring, is that welding resistance is coated with lacquer 37 strip ofves to show the wiring of lower floor in Fig. 3 upper left corner part.Wherein comprise the ground plane 332 and 333 in two zones, and be positioned at this ground plane 332 and 333 middle signal lines 331, this holding wire 331 constitutes one group of transmission line 33 with ground plane 332 and 333.Holding wire 331 1 ends link to each other with joint 36, and this joint 36 can be in conjunction with coaxial wire and antenna (scheming not shown) to receive or to transmit high-frequency signal from the outside.
Coat with lacquer 37 surfaces in welding resistance and be provided with one group of signal acquisition pad 34, this signal acquisition pad 34 comprises a signal contact mat 341 and two ground connection contact mats 342 and 343, wherein signal contact mat 341 is electrically connected with holding wire 331, and two ground connection contact mats 342 and 343 then are electrically connected in ground plane 332 and 333 respectively.Fig. 4 is the schematic appearance of survey tool of the present invention.For cooperating the surveying work of circuit board 30, the invention provides a survey tool 40 to capture the transmission signals of its transmission line 33.This survey tool 40 utilizes a sub-miniature A connector 44 to be basic part, or with other type coaxial fitting as basic part, for example: sub-miniature B connector, sub-miniature C connector or BNC connector or the like, but this sub-miniature A connector 44 has the axial line of a transmitting high-frequency signal and the grounded part 441 of housing.One metal extension board 45 is fixed on sub-miniature A connector 44 belows, and is electrically connected or directly combines with the grounded part of sub-miniature A connector 44.Get two thicker metal wires and be welded in metal extension board 45 belows, thereby form two grounded probes 42 and 43, this grounded probe 42 and 43 distance should be decided on the distance of ground connection contact mat 342 and 343.In addition, these sub-miniature A connector 44 axial lines own can be used as signal probe 41.
Fig. 5 is the schematic diagram that circuit board of the present invention is measured operation.The present invention is socketed on survey tool 40 in the SMA female joint 51, and the other end of this SMA female joint 51 is online by a coaxial wire 52 and a network analyzer 80.User's SMA female joint 51 of can taking makes the end of signal probe 41, grounded probe 42 and 43 touch signal contact mat 341 and two ground connection contact mats 342 and 343 respectively, and circuit board 30 will be captured to network analyzer 80 via holding wire 331, ground plane 332 and 333 high frequency signals transmitted, and utilizes the various measurement functions in the network analyzer 80 to carry out the measurement of high frequency electrical characteristic.
Fig. 6 is the schematic appearance of another preferred embodiment of survey tool of the present invention.Be with survey tool 40 differences of Fig. 4: the below of sub-miniature A connector 64 replaces probe with substrate 65.The surface of this substrate 65 has signal electrode 61, grounding electrode 62 and 63, and wherein signal electrode 61 is connected with the axial line 641 of sub-miniature A connector 64, and grounding electrode 62 and 63 then is electrically connected in the grounded part of sub-miniature A connector 64.Therefore signal electrode 61, grounding electrode 62 and 63 will be distinguished activation signal pad 341 and two ground mats 342 and 343, but with regard to measuring circuit plate 30 high frequency signals transmitted.
The signal acquisition pad that the present invention discloses is directly to form on substrate in the substrate manufacture process, need not extra coaxial connector or switch, therefore can save relevant Master Cost.In addition, also propose supporting survey tool, make practical application of the present invention have more integrality.
Technology contents of the present invention and technical characterstic disclose as above, yet the personage who is familiar with this technology still may be based on teaching of the present invention and announcement and done all replacement and modifications that does not deviate from spirit of the present invention.Therefore, protection scope of the present invention should be not limited to the content that embodiment discloses, and should comprise various do not deviate from replacement of the present invention and modifications, and is contained by the present patent application claim.
Claims (7)
1, a kind of high-frequency circuit board of tool signal acquisition pad comprises:
At least one group of transmission line has a holding wire and at least one ground plane, and described holding wire is connected with an antenna;
The welding resistance lacquer, described welding resistance lacquer covers described holding wire and described at least one ground plane; And
At least one group of signal acquisition pad is located at the surface that described welding resistance is coated with lacquer, and this signal acquisition pad comprises:
One signal contact mat is electrically connected with described holding wire; And
At least one ground connection contact mat is electrically connected with described at least one ground plane.
2, the high-frequency circuit board of tool signal acquisition pad according to claim 1 is characterized in that described transmission line is positioned at the lower floor of this signal acquisition pad.
3, a kind of survey tool of high-frequency circuit board of tool signal acquisition pad, described high-frequency circuit board comprises:
At least one group of transmission line has a holding wire and at least one ground plane, and described holding wire is connected with an antenna;
The welding resistance lacquer, described welding resistance lacquer covers described holding wire and described at least one ground plane; And
At least one group of signal acquisition pad is located at the surface that described welding resistance is coated with lacquer, and this signal acquisition pad comprises:
One signal contact mat is electrically connected with described holding wire; And
At least one ground connection contact mat is electrically connected with described at least one ground plane;
Described survey tool comprises:
One coaxial fitting has a grounded part and an axial line that protrudes; And
At least one grounded probe is used to be electrically connected to the grounded part of this coaxial fitting;
Wherein, contact described signal contact point and described at least one ground connection contact mat of the signal acquisition pad of described high-frequency circuit board respectively by this axial line and at least one grounded probe, and then capture the transmission signals of this high-frequency circuit board.
4, survey tool according to claim 3 is characterized in that also comprising a metal extension, and the below of described coaxial fitting is located in this metal extension, and combines with the grounded part of this coaxial fitting.
5, survey tool according to claim 4 is characterized in that described grounded probe is fixed in the surface of this metal extension.
6, survey tool according to claim 3 is characterized in that described coaxial fitting is to adopt sub-miniature A connector, sub-miniature B connector, sub-miniature C connector or BNC connector.
7, a kind of survey tool of high-frequency circuit board of tool signal acquisition pad, described high-frequency circuit board comprises:
At least one group of transmission line has a holding wire and at least one ground plane, and described holding wire is connected with an antenna;
The welding resistance lacquer, described welding resistance lacquer covers described holding wire and described at least one ground plane; And
At least one group of signal acquisition pad is located at the surface that described welding resistance is coated with lacquer, and this signal acquisition pad comprises:
One signal contact mat is electrically connected with described holding wire; And
At least one ground connection contact mat is electrically connected with described at least one ground plane;
Described survey tool comprises:
One coaxial fitting has grounded part and axial line; And
One substrate, surface thereof engages with described coaxial fitting, and another surface is provided with a signal electrode and at least one grounding electrode; It is characterized in that described signal electrode and this axial line are electrically connected, this grounding electrode is electrically connected with this grounded part;
Wherein, contact described signal contact mat and described at least one ground connection contact mat of the signal acquisition pad of this high-frequency circuit board respectively by described signal electrode and described at least one grounding electrode, and then capture the transmission signals of this high-frequency circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03138339 CN1265685C (en) | 2003-05-27 | 2003-05-27 | High Frequency Circuit Board with Signal Pickup Pad and Its Measurement Tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03138339 CN1265685C (en) | 2003-05-27 | 2003-05-27 | High Frequency Circuit Board with Signal Pickup Pad and Its Measurement Tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1553759A CN1553759A (en) | 2004-12-08 |
| CN1265685C true CN1265685C (en) | 2006-07-19 |
Family
ID=34323701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03138339 Expired - Fee Related CN1265685C (en) | 2003-05-27 | 2003-05-27 | High Frequency Circuit Board with Signal Pickup Pad and Its Measurement Tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1265685C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7816932B2 (en) * | 2008-02-21 | 2010-10-19 | Teradyne, Inc. | Test system with high frequency interposer |
| JP5782824B2 (en) * | 2011-05-18 | 2015-09-24 | 三菱電機株式会社 | High frequency characteristic measuring device |
| TWI572090B (en) * | 2014-06-26 | 2017-02-21 | 仁寶電腦工業股份有限公司 | Electronic device and testing system |
| CN106535470B (en) * | 2016-12-26 | 2018-09-25 | 郑州云海信息技术有限公司 | A kind of PCB layout method, line width determining device and PCB based on SMA interfaces |
| TWI750912B (en) * | 2020-11-20 | 2021-12-21 | 萬旭電業股份有限公司 | High-frequency measurement line structure |
-
2003
- 2003-05-27 CN CN 03138339 patent/CN1265685C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1553759A (en) | 2004-12-08 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060719 Termination date: 20120527 |