CN105530066A - Synchronizing signal backing plate - Google Patents
Synchronizing signal backing plate Download PDFInfo
- Publication number
- CN105530066A CN105530066A CN201510997316.7A CN201510997316A CN105530066A CN 105530066 A CN105530066 A CN 105530066A CN 201510997316 A CN201510997316 A CN 201510997316A CN 105530066 A CN105530066 A CN 105530066A
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- CN
- China
- Prior art keywords
- special purpose
- purpose interface
- connector module
- synchronizing signal
- group
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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.)
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/15—Backplane arrangements
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
The invention discloses a synchronizing signal backing plate. All terminals of a first group of special interfaces are connected with radio frequency assembly connector modules at an equal interval, and a length error of each signal line is not over 5mil, so that the consistency of lengths of synchronizing signal lines is greatly improved, a synchronizing signal can bear a higher frequency, and a synchronizing effect is improved; and meanwhile, the signal lines are also integrated in the backing plate, so that assembling and repairing time is greatly saved.
Description
Technical field
The present invention relates to electronic engineering field, be specifically related to a kind of synchronizing signal backboard.
Background technology
Traditional radar or the communication technology are all carry out certain coded treatment to reach certain effect to radio wave.Such as radar utilizes coding techniques to improve spatial resolution and to strengthen electronic warfare capability, and communication system utilizes coding techniques to improve the capacity of channel.But along with technical development, only cannot continue to improve the performance of radar or communication system by coding techniques.Radar improves its spatial resolution to continue and strengthens electronic warfare capability, proposes and utilizes multiple transmitting and accept passage to deduce the propagation path of radar signal in space, thus improve resolution.Communication system, in order to hold more communication channel simultaneously, also requires to utilize multiple transmitting and accept passage to improve the channel carrying capacity of base station and to eliminate multipath effect, and further cuts down the multipath effect between building.So with communicating, radar all requires that system can allow multiple transmitting and accept the ability that passage works simultaneously.
One of them key that multiple launch and accept passage works simultaneously is exactly need to operate several digital to analog converters (DAC)/analog to digital converter (ADC) simultaneously.Wherein digital to analog converter is responsible for transmitting terminal and receiving terminal is responsible for by analog to digital converter.A key request of this operation is exactly that multiple digital to analog converter or multiple analog to digital converter must operate at below same clock frequency, otherwise the multichannel ability of system not only can not play, and likely interferes with each other between channel all the better and causes system to run.So people generally adopt coaxial cable to carry out the frequency of domination number weighted-voltage D/A converter or analog to digital converter clock chip to the synchronizing signal transmitting low frequency on engineering, the data-signal of digital to analog converter or analog to digital converter then adopts optical fiber or coaxial cable to transmit.Between coaxial cable, the consistency of length ensures that synchronizing signal can arrive a key index of clock chip simultaneously.But due to the problem of production technology, the consistency of coaxial cable cannot ensure well, so low frequency (1 megahertz or following) synchronizing signal can only be used to reduce the susceptibility of synchronizing signal to cable sample different in size.The problem brought like this is exactly that synchronous signal frequency is low, and synchronous effect is bad.Be exactly that too much cable optic fibre is easy to wrong in the middle of the process of installing or keep in repair in addition, thus affect installation and the maintenance of the complete machine of radar or communication system.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the invention is to provide a kind of synchronizing signal plate, and its synchronous signal frequency is high, and integrated level is high.
To achieve these goals, the technical solution used in the present invention is:
A kind of synchronizing signal backboard, it is characterized in that: comprise a pcb board, described pcb board is provided with the first connector module, second connector module, 3rd connector module the 4th connector module, described first connector module is connected with radio frequency component, described second connector module comprises first group of special purpose interface and second group of special purpose interface, described first group of all terminal of special purpose interface is connected by holding wire is equidistant with the first card module, described second group of special purpose interface is connected with the 3rd connector module and the 4th connector module, described 3rd connector module is connected with host computer, described 4th connector module is connected with slave computer.
As the improvement of technique scheme, described first group of connector module adopts 64 PCIEx4 interfaces.
As the improvement of technique scheme, described holding wire error in length is no more than 5mil.
As the improvement of technique scheme, described holding wire adopts differential signal line.
As the improvement of technique scheme, described first group of special purpose interface comprises the first special purpose interface, the second special purpose interface and the 3rd special purpose interface.
As the improvement of technique scheme, described second group of special purpose interface comprises the first special purpose interface and the second special purpose interface, described first special purpose interface and the 3rd connector model calling, described second special purpose interface and the 4th connector model calling.
As the improvement of technique scheme, backboard is of a size of 1200mm × 530mm × 2.0mm.
As the improvement of technique scheme, back plate dielectric adopts high frequency plate FR4 or Rogers 4350 or 5880.
The invention has the beneficial effects as follows: a kind of synchronizing signal backboard, be connected with radio frequency component connector module 100 is equidistant by all terminals of the first special purpose interface, holding wire error in length is no more than 5mil, substantially increase the extension consistency of synchronous signal line, make synchronizing signal can walk higher frequency, improve synchronous effect, synchronous signal line is also integrated in the middle of backboard, greatly saves the time of assembling and maintenance.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Fig. 1 is the operation principle block diagram of the specific embodiment of the invention;
Fig. 2 is the back plate design schematic diagram of the specific embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details:
With reference to accompanying drawing 1 and Fig. 2, a kind of synchronizing signal backboard of the present invention, comprise a pcb board, described pcb board is provided with the first connector module 1, second connector module 2, 3rd connector module 3 the 4th connector module 4, described first connector module 1 is connected with radio frequency component, described second connector module 2 comprises first group of special purpose interface 21 and second group of special purpose interface 22, described first group of all terminal of special purpose interface 21 is connected by holding wire is equidistant with the first card module 1, described first group of special purpose interface 21 comprises the first special purpose interface 211, second special purpose interface 212 and the 3rd special purpose interface 213, described second group of special purpose interface 22 is connected with the 3rd connector module 3 and the 4th connector module 4, described second group of special purpose interface 22 comprises the first special purpose interface 221 and the second special purpose interface 222, described first special purpose interface 221 is connected with the 3rd connector module 3, and described second special purpose interface 222 is connected with the 4th connector module 4, described 3rd connector module 3 is connected with host computer, and described 4th connector module 4 is connected with slave computer.
In the specific embodiment of the invention, backboard is of a size of 1200mm × 530 × 2.0.First group of connector module 1 preferably adopts employing 64 PCIEx4 interfaces, i.e. the distribution of 64 road radar synchronizing signals and data-signal.In order to ensure the stability of high speed signal 100 ohmage, and reduce the interference of outer signals to synchronizing signal and data-signal.In the present invention, 64 radio frequency interfaces are not unique selection, and the radio-frequency module that this design can be used for arbitrary number is synchronous.
Described first group of all terminal of special purpose interface 21 is connected by holding wire is equidistant with the first card module 1, and holding wire error in length is no more than 5mil, and holding wire adopts differential signal line; Thus meet the extension consistency requirement of high-speed synchronous signal.All signals are all integrated on one piece of circuit board, have accomplished without cable design, greatly save the time of assembling and maintenance.And the interface between all modules, all realize with the form of connector.
Present invention uses high frequency plate FR4 in addition as material medium, and employ the PCB technology of 18 laminates; Dielectric material can also use the low-loss materials such as Rogers 4350 or 5880 to improve the stability of high speed signal further.
More than that the better enforcement of invention is illustrated, but innovation and creation are not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (8)
1. a synchronizing signal backboard, it is characterized in that: comprise a pcb board, described pcb board is provided with the first connector module (1), second connector module (2), 3rd connector module (3) the 4th connector module (4), described first connector module (1) is connected with radio frequency component, described second connector module (2) comprises first group of special purpose interface (21) and second group of special purpose interface (22), described first group of all terminal of special purpose interface (21) is connected by holding wire is equidistant with the first card module (1), described second group of special purpose interface (22) is connected with the 3rd connector module (3) and the 4th connector module (4), described 3rd connector module (3) is connected with host computer, described 4th connector module (4) is connected with slave computer.
2. according to a kind of synchronizing signal backboard according to claim 1, it is characterized in that: described first group of connector module (1) adopts 64 PCIEx4 interfaces.
3. a kind of synchronizing signal backboard according to claim 1, is characterized in that: described holding wire error in length is no more than 5mil.
4. a kind of synchronizing signal backboard according to claim 3, is characterized in that: described holding wire adopts differential signal line.
5. a kind of synchronizing signal backboard according to claim 1, is characterized in that: described first group of special purpose interface (21) comprises the first special purpose interface (211), the second special purpose interface (212) and the 3rd special purpose interface (213).
6. a kind of synchronizing signal backboard according to claim 1, it is characterized in that: described second group of special purpose interface (22) comprises the first special purpose interface (221) and the second special purpose interface (222), described first special purpose interface (221) is connected with the 3rd connector module (3), and described second special purpose interface (222) is connected with the 4th connector module (4).
7., according to a kind of synchronizing signal backboard according to claim 1, it is characterized in that: backboard is of a size of 1200mm × 530mm × 2.0mm.
8. according to a kind of synchronizing signal backboard according to claim 1, it is characterized in that: back plate dielectric adopts high frequency plate FR4 or Rogers 4350 or 5880.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510997316.7A CN105530066B (en) | 2015-12-24 | 2015-12-24 | A kind of synchronizing signal backboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510997316.7A CN105530066B (en) | 2015-12-24 | 2015-12-24 | A kind of synchronizing signal backboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105530066A true CN105530066A (en) | 2016-04-27 |
| CN105530066B CN105530066B (en) | 2018-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510997316.7A Active CN105530066B (en) | 2015-12-24 | 2015-12-24 | A kind of synchronizing signal backboard |
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| Country | Link |
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| CN (1) | CN105530066B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740560A (en) * | 2016-12-13 | 2017-05-31 | 象翌微链科技发展有限公司 | A kind of mobile unit connector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201717351U (en) * | 2010-06-25 | 2011-01-19 | 中国移动通信集团公司 | Antenna back panel |
| CN103678212A (en) * | 2013-11-18 | 2014-03-26 | 航天恒星科技有限公司 | Universal interface detection device based on VPX framework |
| CN104991618A (en) * | 2015-07-24 | 2015-10-21 | 上海航天科工电器研究院有限公司 | VPX bus based integration architecture |
| CN205283556U (en) * | 2015-12-24 | 2016-06-01 | 珠海加中通科技有限公司 | Synchronization signal backplate |
-
2015
- 2015-12-24 CN CN201510997316.7A patent/CN105530066B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201717351U (en) * | 2010-06-25 | 2011-01-19 | 中国移动通信集团公司 | Antenna back panel |
| CN103678212A (en) * | 2013-11-18 | 2014-03-26 | 航天恒星科技有限公司 | Universal interface detection device based on VPX framework |
| CN104991618A (en) * | 2015-07-24 | 2015-10-21 | 上海航天科工电器研究院有限公司 | VPX bus based integration architecture |
| CN205283556U (en) * | 2015-12-24 | 2016-06-01 | 珠海加中通科技有限公司 | Synchronization signal backplate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740560A (en) * | 2016-12-13 | 2017-05-31 | 象翌微链科技发展有限公司 | A kind of mobile unit connector |
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| Publication number | Publication date |
|---|---|
| CN105530066B (en) | 2018-05-11 |
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Address after: No.2 Gangle Road, Tangjiawan Town, Zhuhai City, Guangdong Province 519080 Patentee after: Guangdong Narui Radar Technology Co.,Ltd. Address before: 519080 unit n, room 607, 6th floor, main building, No.10, Keji 1st Road, Gangwan Avenue, Tangjiawan Town, Zhuhai City, Guangdong Province Patentee before: Zhuhai Naruida Technology Co.,Ltd. |