CN106656246A - Signal transmission system based on serpentine wire and mobile terminal - Google Patents
Signal transmission system based on serpentine wire and mobile terminal Download PDFInfo
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- CN106656246A CN106656246A CN201610930570.XA CN201610930570A CN106656246A CN 106656246 A CN106656246 A CN 106656246A CN 201610930570 A CN201610930570 A CN 201610930570A CN 106656246 A CN106656246 A CN 106656246A
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- Prior art keywords
- serpentine
- transmission line
- signal
- line
- mobile terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
Abstract
The invention discloses a signal transmission system based on a serpentine wire and a mobile terminal and belongs to the technical field of a mobile terminal. The system comprises a signal transmitting end, a signal receiving end and a serpentine transmission wire, wherein the signal transmitting end is connected with an input port of the serpentine transmission wire, the signal receiving end is connected with an output port of the serpentine transmission wire, the serpentine transmission wire comprises a horizontal transmission wire and a vertical transmission wire, the horizontal transmission wire and the vertical transmission wire are perpendicularly arranged to form an integrated body, a wiring mode of the horizontal transmission wire or the vertical transmission wire is a serpentine wire. On the basis of odd mode coupling characteristics of the serpentine wire, compensation for self-contained effective characteristic impedance of a difference transmission signal is carried out, impedance matching is improved, and relatively low cost is realized.
Description
Technical field
The present invention relates to technical field of mobile terminals, more particularly to a kind of signal transmission system and movement based on serpentine
Terminal.
Background technology
In the prior art, the improvement of the signal transmission characteristicses of the radio circuit in mobile terminal is mainly by increasing electricity
Electrification appearance does the circuit Q factor reduction that the parasitic parameter of inductance capacitance device in match circuit, but match circuit brings, meeting
Matching effect is caused to decline.
The content of the invention
Present invention is primarily targeted at proposing a kind of signal transmission system and mobile terminal based on serpentine, Neng Goutong
The strange mode coupling characteristic of serpentine is crossed, is compensated for differential transmission signals itself validity feature impedance, improve impedance matching,
And cost is relatively low.
For achieving the above object, a kind of signal transmission system based on serpentine that the present invention is provided, including：Signal is launched
The input port connection at end, signal receiving end and snakelike transmission line, the signal transmitting terminal and snakelike transmission line, the signal connects
The output port connection of receiving end and snakelike transmission line, the snakelike transmission line includes level to transmission line and vertically to transmission line,
The level to transmission line and vertically being vertically arranged to transmission line and be integrally formed, the level to transmission line and/or vertically to
Transmission line cabling mode is serpentine.
Alternatively, also including pcb board, the snakelike transmission line is arranged on the pcb board, and the pcb board is four layers of knot
Structure, including：First layer architecture, the second layer architecture, third layer framework and the 4th layer architecture, the snakelike transmission line is arranged at described
On third layer framework.
Alternatively, coupling line, the coupling line and the snakelike transmission line are provided with around the snakelike transmission line
Cabling mode is identical, and the coupling line includes level to coupling line and vertically to coupling line.
Alternatively, interconnection architecture is provided between first layer architecture and third layer framework, is set in the interconnection architecture
It is equipped with via.
Alternatively, the level enters the first layer architecture to the end of coupling line by the via, and in the first layer frame
Short circuit in structure；The vertical end to coupling line enters the first layer architecture by the via, and short in the first layer architecture
Connect, and be connected with the output port.
Alternatively, the serpentine includes straight line and sweep.
Alternatively, the sweep is shaped as rectangle.
Alternatively, the sweep be shaped as it is trapezoidal.
Alternatively, the sweep is shaped as arc.
As another aspect of the present invention, there is provided a kind of mobile terminal, including above-described signal transmission system.
A kind of signal transmission system and mobile terminal based on serpentine proposed by the present invention, the system includes：Signal is sent out
Penetrate the input port connection of end, signal receiving end and snakelike transmission line, the signal transmitting terminal and snakelike transmission line, the signal
The output port connection of receiving terminal and snakelike transmission line, the snakelike transmission line includes level to transmission line and vertically to transmission
Line, the level is to transmission line and is vertically vertically arranged to transmission line and is integrally formed, and the level is to transmission line and/or vertically
It is serpentine to transmission line cabling mode, the strange mode coupling characteristic of serpentine can be passed through, has for differential transmission signals itself
Effect characteristic impedance is compensated, and improves impedance matching, and cost is relatively low.
Description of the drawings
Fig. 1 is the hardware architecture diagram of the mobile terminal for realizing each embodiment of the invention；
Fig. 2 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 1；
Fig. 3 is a kind of signal transmission system exemplary block diagram based on serpentine that the embodiment of the present invention one is provided；
Fig. 4 is cabling schematic diagram of the serpentine of the offer of the embodiment of the present invention one on pcb board；
Fig. 5 be the embodiment of the present invention one provide a kind of signal transmission system based on serpentine under the conditions of lossless etc.
Effect circuit diagram.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that specific embodiment described herein is not intended to limit the present invention only to explain the present invention.
The mobile terminal of each embodiment of the invention is realized referring now to Description of Drawings.In follow-up description, use
For represent element such as " module ", " part " or " unit " suffix only for be conducive to the present invention explanation, itself
Not specific meaning.Therefore, " module " can be used mixedly with " part ".
Mobile terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as moving
Phone, smart phone, notebook computer, digit broadcasting receiver, PDA (personal digital assistant), PAD（Panel computer）、PMP
The mobile terminal of (portable media player), guider etc. and such as numeral TV, desktop computer etc. are consolidated
Determine terminal.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that, except being used in particular for movement
Outside the element of purpose, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Fig. 1 is that the hardware configuration of the mobile terminal for realizing each embodiment of the invention is illustrated.
Mobile terminal 1 00 can include wireless communication unit 110, A/V (audio/video) input block 120, user input
Unit 130, sensing unit 140, output unit 150, memory 160, interface unit 170, controller 180 and power subsystem 190
Etc..Fig. 1 shows the mobile terminal with various assemblies, it should be understood that being not required for implementing all groups for illustrating
Part.More or less of component can alternatively be implemented.Will be discussed in more detail below the element of mobile terminal.
Wireless communication unit 110 generally includes one or more assemblies, and it allows mobile terminal 1 00 and wireless communication system
Or the radio communication between network.For example, wireless communication unit can include broadcasting reception module 111, mobile communication module
112nd, at least one of wireless Internet module 113, short range communication module 114 and location information module 115.
Broadcasting reception module 111 receives broadcast singal and/or broadcast via broadcast channel from external broadcast management server
Relevant information.Broadcast channel can include satellite channel and/or terrestrial channel.Broadcast management server can be generated and sent
The broadcast singal generated before the server or reception of broadcast singal and/or broadcast related information and/or broadcast related information
And send it to the server of terminal.Broadcast singal can include TV broadcast singals, radio signals, data broadcasting
Signal etc..And, broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast phase
Pass information can also be provided via mobile communications network, and in this case, broadcast related information can be by mobile communication mould
Block 112 is receiving.Broadcast singal can be present in a variety of manners, and for example, it can be with the electronics of DMB (DMB)
The form of program guide (EPG), the electronic service guidebooks (ESG) of digital video broadcast-handheld (DVB-H) etc. and exist.Broadcast
Receiver module 111 can receive signal broadcast by using various types of broadcast systems.Especially, broadcasting reception module 111
Can be wide by using such as multimedia broadcasting-ground (DMB-T), DMB-satellite (DMB-S), digital video
Broadcast-hand-held (DVB-H), forward link media（MediaFLO@）Radio Data System, received terrestrial digital broadcasting integrated service
Etc. (ISDB-T) digit broadcasting system receives digital broadcasting.Broadcasting reception module 111 may be constructed such that and be adapted to provide for extensively
Broadcast the various broadcast systems and above-mentioned digit broadcasting system of signal.Via broadcasting reception module 111 receive broadcast singal and/
Or broadcast related information can be stored in memory 160 (or other types of storage medium).
Mobile communication module 112 sends radio signals to base station (for example, access point, node B etc.), exterior terminal
And at least one of server and/or receive from it radio signal.Such radio signal can be logical including voice
Words signal, video calling signal or the various types of data for sending and/or receiving according to text and/or Multimedia Message.
Wireless Internet module 113 supports the Wi-Fi (Wireless Internet Access) of mobile terminal.The module can be internally or externally
It is couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by the module can include WLAN (WLAN) (Wi-Fi), Wibro
(WiMAX), Wimax (worldwide interoperability for microwave accesses), HSDPA (high-speed downlink packet access) etc..
Short range communication module 114 is the module for supporting junction service.Some examples of short-range communication technology include indigo plant
Tooth TM, RF identification (RFID), Infrared Data Association (IrDA), ultra broadband (UWB), purple honeybee TM etc..
Location information module 115 is the module for checking or obtaining the positional information of mobile terminal.Location information module
Typical case be GPS (global positioning system).According to current technology, GPS module 115 is calculated from three or more satellites
Range information and correct time information and for calculate Information application triangulation, so as to according to longitude, latitude
Highly accurately calculate three-dimensional current location information.Currently, the method for calculating position and temporal information is defended using three
The error of star and the position that calculated by using other satellite correction and temporal information.Additionally, GPS module 115
Can be by Continuous plus current location information in real time come calculating speed information.
A/V input blocks 120 are used to receive audio or video signal.A/V input blocks 120 can include the He of camera 121
Microphone 1220, the static map that 121 pairs, camera is obtained in Video Capture pattern or image capture mode by image capture apparatus
The view data of piece or video is processed.Picture frame after process may be displayed on display module 151.At Jing cameras 121
Picture frame after reason can be stored in memory 160 (or other storage mediums) or via wireless communication unit 110 and carry out
Send, two or more cameras 1210 can be provided according to the construction of mobile terminal.Microphone 122 can be in telephone relation mould
Sound (voice data) is received via microphone in formula, logging mode, speech recognition mode etc. operational mode, and can be by
Such acoustic processing is voice data.Audio frequency (voice) data after process can be changed in the case of telephone calling model
For the form output of mobile communication base station can be sent to via mobile communication module 112.Microphone 122 can implement all kinds
Noise eliminate (or suppress) algorithm eliminating (or suppression) in the noise for receiving and producing during sending audio signal or
Person disturbs.
User input unit 130 can generate key input data to control each of mobile terminal according to the order of user input
Plant operation.User input unit 130 allows the various types of information of user input, and can include keyboard, metal dome, touch
Plate (for example, detection is due to the sensitive component of the change of touched and caused resistance, pressure, electric capacity etc.), roller, rocking bar etc.
Deng.Especially, when touch pad is superimposed upon in the form of layer on display module 151, touch-screen can be formed.
Sensing unit 140 detects the current state of mobile terminal 1 00, and (for example, mobile terminal 1 00 opens or closes shape
State), the presence or absence of contact (that is, touch input), the mobile terminal of the position of mobile terminal 1 00, user for mobile terminal 1 00
100 orientation, the acceleration or deceleration movement of mobile terminal 1 00 and direction etc., and generate for controlling mobile terminal 1 00
The order of operation or signal.For example, when mobile terminal 1 00 is embodied as sliding-type mobile phone, sensing unit 140 can be sensed
The sliding-type phone is opened or closed.In addition, sensing unit 140 can detect power subsystem 190 whether provide electric power or
Whether person's interface unit 170 couples with external device (ED).Sensing unit 140 can will be combined below including proximity transducer 1410
Touch-screen to this being described.
Interface unit 170 is connected the interface that can pass through with mobile terminal 1 00 as at least one external device (ED).For example,
External device (ED) can include wired or wireless head-band earphone port, external power source (or battery charger) port, wired or nothing
Line FPDP, memory card port, the port for device of the connection with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Identification module can be that storage uses each of mobile terminal 1 00 for verifying user
Kind of information and subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) can be included
Etc..In addition, the device (hereinafter referred to as " identifying device ") with identification module can take the form of smart card, therefore, know
Other device can be connected via port or other attachment means with mobile terminal 1 00.Interface unit 170 can be used for receive from
The input (for example, data message, electric power etc.) of external device (ED) and the input for receiving is transferred in mobile terminal 1 00
One or more elements can be used for the transmission data between mobile terminal and external device (ED).
In addition, when mobile terminal 1 00 is connected with external base, interface unit 170 can serve as allowing to pass through it by electricity
Power from base provide to mobile terminal 1 00 path or can serve as allow from base be input into various command signals pass through its
It is transferred to the path of mobile terminal.Can serve as recognizing that mobile terminal is from the various command signals or electric power of base input
The no signal being accurately fitted within base.Output unit 150 is configured to provide defeated with vision, audio frequency and/or tactile manner
Go out signal (for example, audio signal, vision signal, alarm signal, vibration signal etc.).Output unit 150 can include showing
Module 151, dio Output Modules 152, alarm modules 153 etc..
Display module 151 may be displayed on the information processed in mobile terminal 1 00.For example, when mobile terminal 1 00 is in electricity
During words call mode, display module 151 can show and converse or other communicate (for example, text messaging, multimedia files
Download etc.) related user interface (UI) or graphic user interface (GUI).When mobile terminal 1 00 is in video calling pattern
Or during image capture mode, display module 151 can show the image of capture and/or the image of reception, illustrate video or figure
UI or GUI of picture and correlation function etc..
Meanwhile, when the display module 151 and touch pad touch-screen with formation superposed on one another in the form of layer, display module
151 can serve as input unit and output device.Display module 151 can include liquid crystal display (LCD), thin film transistor (TFT)
In LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc. at least
It is a kind of.Some in these displays may be constructed such that transparence to allow user from outside viewing, and this is properly termed as transparent
Display, typical transparent display can be, for example, TOLED (transparent organic light emitting diode) display etc..According to specific
The embodiment wanted, mobile terminal 1 00 can include two or more display modules (or other display devices), for example, move
Dynamic terminal can include outside display module (not shown) and internal display module (not shown).Touch-screen can be used for detection and touch
Input pressure and touch input position and touch input area.
Dio Output Modules 152 can mobile terminal in call signal reception pattern, call mode, logging mode,
It is that wireless communication unit 110 is received or in memory 160 when under the isotypes such as speech recognition mode, broadcast reception mode
The voice data transducing audio signal of middle storage and it is output as sound.And, dio Output Modules 152 can be provided and movement
The audio output (for example, call signal receives sound, message sink sound etc.) of the specific function correlation that terminal 100 is performed.
Dio Output Modules 152 can include loudspeaker, buzzer etc..
Alarm modules 153 can provide output so that event is notified to mobile terminal 1 00.Typical event can be with
Including calling reception, message sink, key signals input, touch input etc..In addition to audio or video is exported, alarm modules
153 can in a different manner provide output with the generation of notification event.For example, alarm modules 153 can be in the form of vibrating
Output is provided, when calling, message or some other entrance communication (incomingcommunication) are received, alarm mould
Block 153 can provide tactile output (that is, vibrating) to notify to user.By providing such tactile output, even if
When the mobile phone of user is in the pocket of user, user also can recognize that the generation of various events.Alarm modules 153
The output of the generation of notification event can be provided via display module 151 or dio Output Modules 152.
Memory 160 can store software program for the process and control operation performed by controller 180 etc., Huo Zheke
With the data (for example, telephone directory, message, still image, video etc.) for temporarily storing own Jing outputs or will export.And
And, memory 160 can be storing the vibration of various modes with regard to exporting when touching and being applied to touch-screen and audio signal
Data.
Memory 160 can include the storage medium of at least one type, and the storage medium includes flash memory, hard disk, many
Media card, card-type memory (for example, SD or DX memories etc.), random access storage device (RAM), static random-access storage
Device (SRAM), read-only storage (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory
(PROM), magnetic storage, disk, CD etc..And, mobile terminal 1 00 can perform memory with by network connection
The network storage device cooperation of 160 store function.
The overall operation of the generally control mobile terminal of controller 180.For example, controller 180 is performed and voice call, data
The related control of communication, video calling etc. and process.In addition, controller 180 can be included for reproducing (or playback) many matchmakers
The multi-media module 1810 of volume data, multi-media module 1810 can be constructed in controller 180, or is so structured that and control
Device processed 180 is separated.Controller 180 can be with execution pattern identifying processing, by the handwriting input for performing on the touchscreen or figure
Piece draws input and is identified as character or image.
Power subsystem 190 receives external power or internal power under the control of controller 180 and provides operation each unit
Appropriate electric power needed for part and component.
Various embodiments described herein can be with using such as computer software, hardware or its any combination of calculating
Machine computer-readable recording medium is implementing.For hardware is implemented, embodiment described herein can be by using application-specific IC
(ASIC), digital signal processor (DSP), digital signal processing device（DSPD）, programmable logic device (PLD), scene can
Programming gate array (FPGA), processor, controller, microcontroller, microprocessor, it is designed to perform function described herein
Implementing, in some cases, such embodiment can be implemented at least one in electronic unit in controller 180.
For software is implemented, the embodiment of such as process or function can with allow to perform the single of at least one function or operation
Software module is implementing.Software code can be come by the software application (or program) write with any appropriate programming language
Implement, software code can be stored in memory 160 and be performed by controller 180.
So far, own Jing describes mobile terminal according to its function.Below, for the sake of brevity, will description such as folded form,
Slide type mobile terminal in various types of mobile terminals of board-type, oscillating-type, slide type mobile terminal etc. is used as showing
Example.Therefore, the present invention can be applied to any kind of mobile terminal, and be not limited to slide type mobile terminal.
As shown in Figure 1 mobile terminal 1 00 may be constructed such that using via frame or packet transmission data it is all if any
Line and wireless communication system and satellite-based communication system are operating.
The communication system that mobile terminal wherein of the invention is operable to is described referring now to Fig. 2.
Such communication system can use different air interface and/or physical layer.For example, used by communication system
Air interface includes such as frequency division multiple access (FDMA), time division multiple acess (TDMA), CDMA (CDMA) and universal mobile communications system
System (UMTS) (especially, Long Term Evolution (LTE)), global system for mobile communications (GSM) etc..As non-limiting example, under
The description in face is related to cdma communication system, but such teaching is equally applicable to other types of system.
With reference to Fig. 2, cdma wireless communication system can include multiple mobile terminal 1s 00, multiple base stations (BS) 270, base station
Controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is configured to and Public Switched Telephony Network (PSTN)
290 form interface.MSC280 is also structured to form interface with the BSC275 that can be couple to base station 270 via back haul link.
If any one that back haul link can be in the interface that Ganji knows is constructing, the interface includes such as E1/T1, ATM, IP,
PPP, frame relay, HDSL, ADSL or xDSL.It will be appreciated that as shown in Figure 2 system can include multiple BSC2750.
Each BS270 can service one or more subregions (or region), by multidirectional antenna or the day of sensing specific direction
Each subregion that line is covered is radially away from BS270.Or, each subregion can by for diversity reception two or more
Antenna is covered.Each BS270 may be constructed such that the multiple frequency distribution of support, and each frequency distribution has specific frequency spectrum
(for example, 1.25MHz, 5MHz etc.).
What subregion and frequency were distributed intersects can be referred to as CDMA Channel.BS270 can also be referred to as base station transceiver
System (BTS) or other equivalent terms.In this case, term " base station " can be used for broadly representing single
BSC275 and at least one BS270.Base station can also be referred to as " cellular station ".Or, each subregion of specific BS270 can be claimed
For multiple cellular stations.
As shown in Figure 2, broadcast singal is sent to broadcsting transmitter (BT) 295 mobile terminal operated in system
100.As shown in Figure 1 broadcasting reception module 111 is arranged at mobile terminal 1 00 to receive the broadcast sent by BT295
Signal.In fig. 2 it is shown that several global positioning system (GPS) satellites 300.Satellite 300 helps position multiple mobile terminals
At least one of 100.
In fig. 2, multiple satellites 300 are depicted, it is understood that be, it is possible to use any number of satellite obtains useful
Location information.As shown in Figure 1 GPS module 115 is generally configured to coordinate to obtain the positioning wanted letter with satellite 300
Breath.Substitute GPS tracking techniques or outside GPS tracking techniques, it is possible to use can track the position of mobile terminal other
Technology.In addition, at least one gps satellite 300 can optionally or additionally process satellite dmb transmission.
Used as a typical operation of wireless communication system, BS270 receives the reverse link from various mobile terminal 1s 00
Signal.Mobile terminal 1 00 generally participates in call, information receiving and transmitting and other types of communication.Each of the reception of certain base station 270 is anti-
Processed in specific BS270 to link signal.The data of acquisition are forwarded to the BSC275 of correlation.BSC provides call
Resource allocation and the mobile management function of the coordination including the soft switching process between BS270.BSC275 is also by the number for receiving
According to MSC280 is routed to, it provides the extra route service for forming interface with PSTN290.Similarly, PSTN290 with
MSC280 forms interface, and MSC and BSC275 form interface, and BSC275 correspondingly controls BS270 with by forward link signals
It is sent to mobile terminal 1 00.
Based on above-mentioned mobile terminal hardware configuration and communication system, the inventive method each embodiment is proposed.
Embodiment one
As shown in figure 3, in the present embodiment, a kind of signal transmission system based on serpentine, including：Signal transmitting terminal,
The input port connection of signal receiving end and snakelike transmission line, the signal transmitting terminal and snakelike transmission line, the signal is received
Hold and the output port of snakelike transmission line connects, the snakelike transmission line includes level to transmission line and vertically to transmission line, institute
Level is stated to transmission line and is vertically vertically arranged to transmission line and is integrally formed, the level is to transmission line and/or vertically to biography
Defeated line cabling mode is serpentine.
In the present embodiment, it is possible to pass through the strange mode coupling characteristic of serpentine, for the effective spy of differential transmission signals itself
Levy impedance to compensate, improve impedance matching, and cost is relatively low.
As shown in figure 4, in the present embodiment, also including pcb board, the snakelike transmission line is arranged on the pcb board, institute
It is four-layer structure to state pcb board, including：First layer architecture, the second layer architecture, third layer framework and the 4th layer architecture, it is described snakelike
Transmission line is arranged on the third layer framework.
As can be known from Fig. 4, level is set to serpentine to the cabling of transmission line, and serpentine total length determines signal bandwidth
With the rejection ability of out-of-band radiation, the longer available bandwidth of length is narrower and rejection ability is better.This framework is equivalent in lossless condition
In passive second order bandpass filtering, its equivalent circuit diagram as shown in figure 5, when actually damaging condition, equivalent inductance in this circuit,
Electric capacity is required for being substituted for the high frequency circuit model of high-order, and length means that more greatly equivalent inductance therein, electric capacity are higher
Rank.This characteristic will effectively help us to obtain to be needed the transmission of signal bandwidth and increases the loss outside band.Simultaneously as this
Serpentine is arranged on third layer, and with second, four layers of composition strip lines configuration, distal end is coupled close to zero.And two ends serpentine is attached
Near magnetic field is mutually perpendicular to, and reduces the change of magnetic field strength caused because of coupling, effectively improves and is brought because reducing area occupied
The change of transmission path effective inductance caused by Out-of-band rejection ability reduce, while improving because serpentine itself coupling is caused
Effective inductance value and own inductance value otherness so that the error of actual electrical length and ideal design electrical length compared with
It is little.
In the present embodiment, the preparation method of the parameter of serpentine is obtained by Richard shift theories, specifically such as
Under：
Wherein,
ZinFor the input impedance at any one end transmission line input port；
ZLFor the load impedance at any one end transmission line output port；
β is phase constant, i.e. 2 π/λ；
L is the physical length of transmission line；
ZoFor the transmission line characteristic impedance of transmission line.
The reflectance factor of port：
Generally to ensure | Г in |<0.3 meeting the reliable signal transfer functions of this transmission line.
Richard shift theories：
Open-circuit line：Equivalent parallel capacitive characteristics impedance Z o=1/ (ω C) minimum length：3/8ths wavelength；
Equivalent parallel inductive aspect impedance Z o=ω L minimum lengths：/ 8th wavelength；
Short-circuit line：Equivalent parallel capacitive characteristics impedance Z o=1/ (ω C) minimum length：/ 8th wavelength；
Equivalent parallel inductive aspect impedance Z o=ω L minimum lengths：3/8ths wavelength.
In the present embodiment, coupling line, the coupling line and the snakelike biography are provided with around the snakelike transmission line
The cabling mode of defeated line is identical, and the coupling line includes level to coupling line and vertically to coupling line, respectively with level to transmission
Line is corresponding to transmission line with vertical, because coupling line is tightly coated on around snakelike transmission line, so when level is to transmission
When line is serpentine（As shown in Figure 4）, level to coupling line also be serpentine, when vertically to transmission line be straight line when（Such as Fig. 4 institutes
Show）, also it is vertically straight line to coupling line, vice versa.
Used as another kind of embodiment, the level to transmission line can also be straight line, and be vertically serpentine to transmission line,
Can also realize improving the function of impedance matching.
Used as another kind of embodiment, the level is all serpentine to transmission line and vertically to transmission line.
In the present embodiment, the level is to transmission line and vertically to transmission line simply in transmission line orthogonal two
The address of part cabling, does not limit the concrete direction of two parts cabling, as long as two parts cabling keeps vertical.
In the present embodiment, interconnection architecture, the mutual frame linking are provided between first layer architecture and third layer framework
Via is provided with structure.
In the present embodiment, the level enters the first layer architecture to the end of coupling line by the via, and the
Short circuit in one layer architecture；The vertical end to coupling line enters the first layer architecture by the via, and in the first layer frame
Short circuit in structure, and be connected with the output port.
Correspondingly, interconnection architecture is also equipped between second layer architecture and the 4th layer architecture, is also set in interconnection architecture
It is equipped with via.
In the present embodiment, the serpentine includes straight line and sweep, due to the presence of sweep so that in serpentine
Signal between two adjacent straight lines constitutes strange mould differential signal, the strange mould（odd）The signal of 2 opposite in phase is referred to,
By the strange mode coupling characteristic of serpentine, compensate for differential transmission signals itself validity feature impedance, improve impedance
Match somebody with somebody, and cost is relatively low.
In the present embodiment, the sweep is shaped as rectangle.
Used as another kind of embodiment, being shaped as the sweep is trapezoidal, and the serpentine of composition is shaped as zigzag,
Can realize improving the function of impedance matching.
Used as another kind of embodiment, the sweep is shaped as arc, and the serpentine of composition is shaped as waveform,
Can realize improving the function of impedance matching.
Embodiment two
In the present embodiment, a kind of mobile terminal, except including the existing capability module in Fig. 1, also implementing including more than
Signal transmission system described in example, can pass through the strange mode coupling characteristic of serpentine, for the effective spy of differential transmission signals itself
Levy impedance to compensate, improve impedance matching, and cost is relatively low.
It should be noted that herein, term " including ", "comprising" or its any other variant are intended to non-row
His property is included, so that a series of process, method, article or device including key elements not only include those key elements, and
And also include other key elements being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
Also there is other identical element in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
（Such as ROM/RAM, magnetic disc, CD）In, including some instructions use is so that a station terminal equipment（Can be mobile phone, computer takes
Business device, air-conditioner, or network equipment etc.）Perform the method described in each embodiment of the invention.
The preferred embodiments of the present invention are these are only, the scope of the claims of the present invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of signal transmission system based on serpentine, it is characterised in that include：Signal transmitting terminal, signal receiving end and snake
The input port connection of shape transmission line, the signal transmitting terminal and snakelike transmission line, the signal receiving end and snakelike transmission line
Output port connection, the snakelike transmission line includes level to transmission line and vertical to transmission line, and the level is to transmission line
Vertically it is vertically arranged to transmission line and is integrally formed, the level is to transmission line and/or vertically to transmission line cabling mode
Serpentine.
2. a kind of signal transmission system based on serpentine according to claim 1, it is characterised in that also including pcb board,
The snakelike transmission line is arranged on the pcb board, and the pcb board is four-layer structure, including：First layer architecture, the second layer frame
Structure, third layer framework and the 4th layer architecture, the snakelike transmission line is arranged on the third layer framework.
3. a kind of signal transmission system based on serpentine according to claim 2, it is characterised in that the snakelike transmission
Coupling line is provided with around line, the coupling line is identical with the cabling mode of the snakelike transmission line, and the coupling line includes
Level is to coupling line and vertically to coupling line.
4. a kind of signal transmission system based on serpentine according to claim 3, it is characterised in that first layer frame
Interconnection architecture is provided between structure and third layer framework, in the interconnection architecture via is provided with.
5. a kind of signal transmission system based on serpentine according to claim 4, it is characterised in that the level is to coupling
The end of zygonema enters the first layer architecture, and the short circuit in the first layer architecture by the via；It is described vertical to coupling line
End enters the first layer architecture, and the short circuit in the first layer architecture by the via, and is connected with the output port.
6. a kind of signal transmission system based on serpentine according to claim 1, it is characterised in that the serpentine bag
Include straight line and sweep.
7. a kind of signal transmission system based on serpentine according to claim 6, it is characterised in that the sweep
It is shaped as rectangle.
8. a kind of signal transmission system based on serpentine according to claim 6, it is characterised in that the sweep
It is shaped as trapezoidal.
9. a kind of signal transmission system based on serpentine according to claim 6, it is characterised in that the sweep
It is shaped as arc.
10. a kind of mobile terminal, it is characterised in that including the signal transmission system described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610930570.XA CN106656246A (en) | 2016-10-31 | 2016-10-31 | Signal transmission system based on serpentine wire and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610930570.XA CN106656246A (en) | 2016-10-31 | 2016-10-31 | Signal transmission system based on serpentine wire and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106656246A true CN106656246A (en) | 2017-05-10 |
Family
ID=58821034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610930570.XA Pending CN106656246A (en) | 2016-10-31 | 2016-10-31 | Signal transmission system based on serpentine wire and mobile terminal |
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| Country | Link |
|---|---|
| CN (1) | CN106656246A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6061035A (en) * | 1997-04-02 | 2000-05-09 | The United States Of America As Represented By The Secretary Of The Army | Frequency-scanned end-fire phased-aray antenna |
| CN201210520Y (en) * | 2008-06-20 | 2009-03-18 | 富港电子（东莞）有限公司 | Digital television antenna |
| CN202308292U (en) * | 2011-10-26 | 2012-07-04 | 常州亚邦天线有限公司 | Digital television antenna |
| CN103259080A (en) * | 2012-02-15 | 2013-08-21 | 摩托罗拉解决方案公司 | Hybrid antenna for portable communication devices |
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2016
- 2016-10-31 CN CN201610930570.XA patent/CN106656246A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6061035A (en) * | 1997-04-02 | 2000-05-09 | The United States Of America As Represented By The Secretary Of The Army | Frequency-scanned end-fire phased-aray antenna |
| CN201210520Y (en) * | 2008-06-20 | 2009-03-18 | 富港电子（东莞）有限公司 | Digital television antenna |
| CN202308292U (en) * | 2011-10-26 | 2012-07-04 | 常州亚邦天线有限公司 | Digital television antenna |
| CN103259080A (en) * | 2012-02-15 | 2013-08-21 | 摩托罗拉解决方案公司 | Hybrid antenna for portable communication devices |
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