CN106899351A - One kind simulation light delivery module - Google Patents
One kind simulation light delivery module Download PDFInfo
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- CN106899351A CN106899351A CN201710116461.9A CN201710116461A CN106899351A CN 106899351 A CN106899351 A CN 106899351A CN 201710116461 A CN201710116461 A CN 201710116461A CN 106899351 A CN106899351 A CN 106899351A
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- signal
- bosa
- optical
- electric signal
- delivery module
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
Abstract
The embodiment of the present application discloses a kind of simulation light delivery module, is related to the communications field, can solve the problem that the signal in broadband by the problem of the simulated light module transfer loss of signal.Simulation light delivery module includes that radio frequency connector, transmitted in both directions optical signal are received and transmitting combiner BOSA, radiating circuit, receiving circuit and printed circuit board (PCB)；Radio frequency connector, for transmitting telecommunication number and connection printed circuit board (PCB) and radio frequency remote unit RRU, electric signal is the electric signal in broadband；BOSA, for converting electrical signals to optical signal in single fiber, and converts optical signals to electric signal, and optical signal is the optical signal in broadband；Receiving circuit, the gain of the electric signal received for lifting and carries out the impedance matching of port；Radiating circuit, converts optical signal into the gain of electric signal after electric signal and enters the impedance matching of horizontal electrical signal for lifting BOSA；Printed circuit board (PCB), for each device in welding analog light delivery module.The embodiment of the present application is used for the signal transmission of BBU and RRU.
Description
Technical field
The application is related to the communications field, more particularly to a kind of simulation light delivery module.
Background technology
Current base station system uses baseband processing unit (Building Base band Unit, BBU) and remote radio
The distributed arrangement manner of unit (Radio Remote Unit, RRU), wherein, the main processing data signals of BBU, RRU are main
Realize remote radio.Because existing base station is narrowband systems, index request is high, and the volume and weight of RRU is all very big, with full range
The development of band indoor covering system and the 5th third-generation mobile communication technology (5-Generation, 5G) system, big bandwidth, small size
RRU turn into main demand, base station system needs speed-raising and loss of weight, transmitting radio frequency signal on optical fiber (Radio Over Fiber,
ROF) technology turns into the crucial alternative technique of big bandwidth for transmission system speed-raising loss of weight.ROF technologies are passed using optical carrier
Referred to as, optical fiber functions only as the effect of transmission medium to the technology of defeated radiofrequency signal, and wherein radiofrequency signal is passed by electrical to optical converter
It is defeated in optical fiber, by Optical Fiber Transmission, electric signal is finally converted into by optical-electrical converter.
Using ROF technologies, prior art provides a kind of narrow-band analog optical module.Fig. 1 is narrow in a kind of RRU and BBU
With the schematic diagram that simulation optical module is connected by optical fiber.It will be seen from figure 1 that the electric signal interface that the program is used is coaxially to connect
Connect that device is all bitter, the electric signal of RRU sides input is by after amplifier amplification, electric signal is by the conversion chip of electric signal to optical signal turn
Change optical signal into, then gone out by optical connector and Optical Fiber Transmission, the light reached by the optical signal of Optical Fiber Transmission in BBU is input into
Module, optical signal is converted to electric signal by optical signal to electric signal chip, and completing radio frequency after electric signal amplifier amplifies believes
Number output and amplification.Optical signal transmission can only be in a direction transmission, and the interface of electric signal input is coaxial connector interface,
Optical signal is the pluggable interface of optical signal of SC interfaces.But, the narrow band laser that is limited in narrow-band analog optical module and narrow
Band circuit (not shown in figure 1), its bandwidth of operation upper limit is less than 3GHz, broadband to be difficult to realize, if that is, the signal in broadband leads to
Crossing the narrow-band analog optical mode block signal will lose.
The content of the invention
The embodiment of the present application provides a kind of simulation light delivery module, can solve the problem that the signal in broadband is passed by simulating optical module
The problem of the defeated loss of signal.
On the one hand, there is provided one kind simulation light delivery module, simulation light delivery module includes radio frequency connector, transmitted in both directions light
Signal is received and transmitting combiner BOSA, radiating circuit, receiving circuit and printed circuit board (PCB)；Radio frequency connector, for passing
Power transmission signal and connection printed circuit board (PCB) and radio frequency remote unit RRU, electric signal is the electric signal in broadband；BOSA, in list
Optical signal is converted electrical signals in fibre, and converts optical signals to electric signal, optical signal is the optical signal in broadband；Receive electricity
Road, the gain of the electric signal received for lifting and carries out the impedance matching of port；Radiating circuit, for lifting BOSA by light
Signal is converted into the gain of electric signal after electric signal and enters the impedance matching of horizontal electrical signal；Printed circuit board (PCB), for welding analog
Each device in light delivery module.So, the radio frequency connector in the application is just broadband RF connector, and BOSA is
Broadband BOSA, radiating circuit and receiving circuit are used to transmit the electric signal and optical signal in broadband, may be such that broadband electric signal or
Optical signal passes through the broadband RF connector, broadband BOSA, and the radiating circuit and receiving circuit for transmitting broadband are transmitted, so that
The loss when signal for reducing broadband is transmitted in narrow-band analog optical module.
In a kind of possible design, radio frequency connector includes plug and socket；Plug include the first pluggable part and
Second pluggable part, the first pluggable part is used for transmitting radio frequency signal, and the second pluggable part is used to transmit direct current signal,
First pluggable part uses micro coaxle structure, to ensure broadband character so that the electric signal in broadband passes through；Plug also includes the
One welding portion, the first welding portion includes that corresponding first welding portion in the first pluggable part, the second pluggable part are right
The second welding portion answered and the first ground connection welding portion, the first ground connection welding portion are welded on printed circuit board (PCB) length direction
End；Socket includes the 3rd pluggable part and the 4th pluggable part, and the 3rd pluggable part is used for transmitting radio frequency signal,
4th pluggable part is used to transmit direct current signal, and the 3rd pluggable part uses micro coaxle structure, to ensure broadband character, makes
The electric signal for obtaining broadband passes through；Socket also includes the second welding portion, and the second welding portion includes the 3rd pluggable part correspondence
The 3rd welding portion, corresponding 4th welding portion in the 4th pluggable part and the second ground connection welding portion, the second ground connection weldering
Socket part point is welded on the bottom of printed circuit board (PCB)；Wherein, the first pluggable part is installed with the 3rd pluggable part interworking, and second
Pluggable part is connected with the 4th pluggable part to inserting, and the second welding portion of socket is connected with RRU.So, pass through
Using cooperatively for plug and socket, may be such that simulation light delivery module is easily installed and maintenance.
In a kind of possible design, BOSA includes transmitting pin, receives pin and BOSA optical ports；Transmitting pin is used for will
The optical signal output being input into after the conversion of the electric signal of BOSA；Receive the telecommunications that pin is used to be input into after the conversion of the optical signal of BOSA
Number output；BOSA optical ports are used to be input into and export optical signal, launch pin and receive pin and printed circuit plate weld.So may be used
To realize electric signal to optical signal, the conversion of optical signal to electric signal and single fiber bi-directional are transmitted.
In a kind of possible design, receiving circuit includes that the first broad band amplifier, the first reception match circuit, second connect
Receive match circuit, the 3rd reception match circuit, receive power supply circuit and the first microstrip line；Wherein, can in the transmitting terminal of BOSA
Length direction between radio frequency connector, first receives match circuit, the second reception match circuit, connecing against the first microstrip line
Receive power supply circuit, the 3rd reception match circuit and the first broad band amplifier and pass sequentially through the connection of the first microstrip line；First broadband
The gain of the electric signal that amplifier is received for lifting；First receives match circuit, the second reception match circuit and the 3rd
Receiving match circuit is used to carry out impedance matching.First microstrip line can be 50 ohm microstrips, can cause to transmit broadband
Loss of signal and flatness are minimum, and reception power supply circuit can realize width using the scheme of broadband magnetic bead shunt capacitance in parallel to ground
Band characteristic.
In a kind of possible design, on the length direction of the reception pin of BOSA, match circuit is received using successively
Series resistance, parallel resistance are connected to the mode of ground, the first microstrip line magnetic bead in parallel and electric capacity, series connection PI shape attenuators.
In a kind of possible design, radiating circuit includes that the second broad band amplifier 14, first launches match circuit 12, the
Two transmitting match circuits 10, the microstrip line of VTIC circuit 11 and second；Can be between radio frequency connector in the receiving terminal of BOSA
Length direction, the second broad band amplifier 14, first launches the transmitting match circuit 10 of match circuit 12, second and against second
The VTIC circuit 11 of microstrip line 2 ' passes sequentially through the cascade of the second microstrip line；What the second broad band amplifier was received for lifting
The gain of electric signal, the first transmitting match circuit and two transmitting match circuits are used to carry out impedance matching.First microstrip line can be with
It is 50 ohm microstrips, can causes that the loss of signal and flatness that transmit broadband are minimum, VTIC circuit can be using simultaneously
Connection broadband magnetic bead shunt capacitance realizes broadband character to the scheme on ground.
In a kind of possible design, on the length direction of the transmitting pin of BOSA, transmitting match circuit is using successively
The magnetic bead and electric capacity of the second microstrip line in parallel, series resistance, the mode of series connection PI shape attenuators are connected.
In a kind of possible design, simulation light delivery module also includes housing, and housing includes upper cover plate and lower cover；Shell
Body is used to form the device on printed circuit board (PCB) and printed circuit board (PCB) protection and the isolation of electromagnetic signal.
In a kind of possible design, simulation light delivery module also includes activity optical port, and activity optical port is provided with for placing
The groove of BOSA, is reserved with space between groove, activity optical port top is provided with the briquetting of semi-circular recesses, for fixing and compressing
BOSA, activity optical port is connected with optical fiber, for receiving the optical signal of Optical Fiber Transmission and by optical signal by optical fiber output.
By above-mentioned design, because radio frequency connector is connected with RRU, after the electric signal that RRU side joints are received, Ke Yitong
The gain of the electric signal that receiving circuit lifting is received is crossed, and carries out impedance matching, and the electric signal after lifting gain is passed through
BOSA is converted to optical signal transmission and goes out, and so, the bandwidth of the electric signal after lifting gain expands, similarly, when BBU sides
When the optical signal of transmission is by Optical Fiber Transmission to simulation light delivery module, after BOSA converts optical signal into electric signal, hair
Transmit-receive radio road can be sent to RRU by the gain lifting of electric signal and by radio frequency connector so that the bandwidth that RRU is received expands
Electric signal afterwards, so, the radio frequency connector in the application is just broadband RF connector, and BOSA is broadband BOSA, hair
Transmit-receive radio road and receiving circuit are used to transmit the electric signal and optical signal in broadband, may be such that the electric signal or optical signal in broadband by being somebody's turn to do
Broadband RF connector, broadband BOSA, the radiating circuit and receiving circuit for transmitting broadband are transmitted, so as to reduce the letter in broadband
Loss when transmitting number in narrow-band analog optical module, and broadband character is utilized, the indoor covering system of full frequency band can be built,
The more RRU of cloth in the range of radius hundreds of meters, improve system data capacity, realize that the power consumption of RRU is greatly reduced.
Brief description of the drawings
The schematic diagram that Fig. 1 is connected for the narrow-band analog optical module in a kind of RRU and BBU of prior art by optical fiber；
Fig. 2 is network rack when a kind of simulation light delivery module that the embodiment of the present application is provided is connected in distributed cloth station
Structure schematic diagram；
A kind of structural representation of simulation light delivery module that Fig. 3 is provided for the embodiment of the present application；
A kind of circuit diagram of simulation light delivery module that Fig. 4 is provided for the embodiment of the present application；
The structural decomposition diagram of a kind of pluggable simulation light delivery module that Fig. 5 is provided for the embodiment of the present application；
A kind of structural representation of the pluggable part of the plug of simulation light delivery module that Fig. 6 is provided for the embodiment of the present application
Figure；
A kind of structural representation of the welding portion of the plug of simulation light delivery module that Fig. 7 is provided for the embodiment of the present application
Figure；
A kind of structural representation of the pluggable part of the socket of simulation light delivery module that Fig. 8 is provided for the embodiment of the present application
Figure；
A kind of structural representation of the welding portion of the socket of simulation light delivery module that Fig. 9 is provided for the embodiment of the present application
Figure；
A kind of structural representation of the signal end inside socket that Figure 10 is provided for the embodiment of the present application；
Structural representation after a kind of socket and plug mounted in pairing mode that Figure 11 is provided for the embodiment of the present application；
A kind of structural representation of BOSA that Figure 12 is provided for the embodiment of the present application；
A kind of activity optical port and BOSA assembling schematic diagrams that Figure 13 is provided for the embodiment of the present application；
Figure 14 a kind of sets for what the embodiment of the present application was provided for absorbing the kidney-shaped screw hole and floating optical port of location tolerance
The structural representation of meter；
The test bandwidth of a kind of the embodiment of the present application test bandwidth that Figure 15 is provided for the embodiment of the present application and prior art
Comparison diagram；
Figure 16 realizes four capacities of frequency signal and existing skill for a kind of RRU that the embodiment of the present application is provided
Art realizes the contrast schematic diagram of the capacity of single frequency signal；
Figure 17 for the embodiment of the present application provide and a kind of SFP+ structural members be connected with analogue transmission optical module and optical fiber and shown
It is intended to.
Specific embodiment
During the embodiment of the present application can apply to base station system using the distributed arrangement manner of BBU and RRU, can be used for
Transmit the electric signal in broadband and the optical signal in broadband.
Wherein, Fig. 2 is network when simulation light delivery module that the application is referred to below is connected in distributed cloth station
Framework.It can be seen that, the one end for simulating light delivery module is arranged on the side of RRU, simulates the other end and optical fiber of light delivery module
One end connects, and the other end of optical fiber is connected with BBU.
As shown in figure 3, the simulation light delivery module in the embodiment of the present application can include radio frequency connector, transmitted in both directions light
Signal is received and transmitting combiner (Bi-direction Optical Subassembly, BOSA), radiating circuit, reception electricity
Road and printed circuit board (PCB).
Radio frequency connector, for transmitting telecommunication number and connection printed circuit board (PCB) and radio frequency remote unit RRU, electric signal is width
The electric signal of band；
BOSA, for converting electrical signals to optical signal in single fiber, and converts optical signals to electric signal, optical signal
It is the optical signal in broadband；
Receiving circuit, the gain of the electric signal received for lifting and carries out the impedance matching of port；
Radiating circuit, converts optical signal into after electric signal the gain of electric signal and enters horizontal electrical signal for lifting BOSA
Impedance matching；
Printed circuit board (PCB), for each device in welding analog light delivery module.
By above-mentioned design, because radio frequency connector is connected with RRU, after the electric signal that RRU side joints are received, Ke Yitong
The gain of the electric signal that receiving circuit lifting is received is crossed, and carries out impedance matching, and the electric signal after lifting gain is passed through
BOSA is converted to optical signal transmission and goes out, and so, the bandwidth of the electric signal after lifting gain expands, similarly, when BBU sides
When the optical signal of transmission is by Optical Fiber Transmission to simulation light delivery module, after BOSA converts optical signal into electric signal, hair
Transmit-receive radio road can be sent to RRU by the gain lifting of electric signal and by radio frequency connector so that the bandwidth that RRU is received expands
Electric signal afterwards, so, the radio frequency connector in the application can be understood as broadband RF connector, and BOSA is broadband
BOSA, radiating circuit and receiving circuit are used to transmit the electric signal and optical signal in broadband, may be such that electric signal or the light letter in broadband
Number process broadband RF connector, broadband BOSA, the radiating circuit and receiving circuit for transmitting broadband are transmitted, so as to reduce
The loss when signal in broadband is transmitted in narrow-band analog optical module.
In embodiment is applied for, above-mentioned simulation light delivery module can also include activity optical port, and the activity optical port is used to connect
Connect BOSA and optical fiber.Simulation light delivery module can also include driving circuits, and the driving circuits are used to be possessed
The adjustable resistance of temperature sensor is connected to the feedback pin of laser, for the light work(that stable laser changes with temperature characterisitic
Rate.The voltage change of feedback pin is put by the way that feedback signal is carried out into electric current by the triode of drive circuit after operational amplifier
The driving current of big post-compensation laser, optical module in the prior art can also be used for 70 degrees Celsius of expansions of operating temperature range
Open up to 90 degrees Celsius.
So, as shown in figure 4, simulating the circuit diagram of light delivery module for the embodiment of the present application, including penetrate
Frequency connector 1, radiating circuit, receiving circuit, controlling and driving circuits 13, BOSA 8 and activity optical port 9.
From fig. 4, it can be seen that receiving circuit can include that the first broad band amplifier 3, first receives match circuit 7, second
Match circuit the 6, the 3rd is received to receive match circuit 4, receive the microstrip line 2 of power supply circuit 5 and first.Wherein, BOSA's 8
Transmitting terminal can be between radio frequency connector 1 length direction, first receive match circuit 7, second receive match circuit 6, against the
The reception power supply circuit the 5, the 3rd of one microstrip line 2 receives the broad band amplifier 3 of match circuit 4 and first and passes sequentially through the first micro-strip
Line 2 is connected.Wherein, the gain of the electric signal that the first broad band amplifier is received for lifting；First receives match circuit, second
Receiving match circuit and the 3rd reception match circuit is used to carry out impedance matching.Broad band amplifier in the application is for passing
The amplifier of the signal in defeated broadband, it is the broadband reception match circuit for realizing the signal transmission in broadband to receive match circuit,
Receive the power supply circuit that power supply circuit is the signal transmission for broadband.Receiving power supply circuit 5 can be using broadband in parallel magnetic bead simultaneously
Connection electric capacity realizes broadband character to the scheme on ground.
In a kind of possible design, BOSA 8 reception pin length direction on, receive match circuit use according to
Secondary series resistance, parallel resistance are connected to the mode of ground, the first microstrip line magnetic bead in parallel and electric capacity, series connection PI shape attenuators, are gone here and there
Connection PI shapes attenuator can be realized by one resistance of two resistance in parallel and series connection.
Radiating circuit can include that the second broad band amplifier 14, first launches the transmitting match circuit of match circuit 12, second
10th, the microstrip line 2 ' of VTIC circuit 11 and second.Length side that can be between radio frequency connector 1 in the receiving terminal of BOSA 8
To the second broad band amplifier 14, first launches the transmitting match circuit 10 of match circuit 12, second and against the second microstrip line 2 '
VTIC circuit 11 pass sequentially through the second microstrip line 2 ' cascade.The telecommunications that second broad band amplifier 14 is received for lifting
Number gain, first transmitting match circuit 12 and two transmitting match circuit 10 be used for carry out impedance matching.Launching match circuit is
Broadband emission match circuit for realizing the signal transmission in broadband, VTIC circuit is the power supply of the signal transmission for broadband
Circuit.VTIC circuit 11 can realize broadband character using broadband magnetic bead shunt capacitance in parallel to the scheme on ground.
In a kind of possible design, on the length direction of the transmitting pin of BOSA8, transmitting match circuit is using successively
The magnetic bead and electric capacity of the second microstrip line in parallel, series resistance, the mode of series connection PI shape attenuators are connected, and series connection PI shape attenuators can
Realized with by one resistance of two resistance in parallel and series connection.
Above-mentioned microstrip line can be 50 ohm microstrips, can cause that the loss of signal and flatness that transmit broadband are minimum.
Using the circuit design shown in above-mentioned Fig. 4, in order to realize the broadband character of the application, radio frequency connector 1 connects as electric signal
Mouthful, RRU can be input in circuit with input electrical signal by radio frequency connector 1, by 50 ohm microstrips 2 ' that electric signal is defeated
Enter to the second broad band amplifier 14, with the gain of lifting electric signal, then by the electric signal after lifting gain by the first transmitting
The transmitting match circuit 10 of match circuit 12 and second carries out impedance matching, to improve the impedance matching of transmitting chain.This be due to
The major part impedance of radio frequency analog circuit is 50 ohm, and the impedance of BOSA difference is farther out, therefore needs to carry out impedance matching so that mould
Intend signal and reduction as far as possible is lost during transmission.Then, electric signal input BOSA 8, changes electric signal by BOSA 8
It is optical signal, optical signal is sent by optical fiber by activity optical port 9.Wherein, VTIC circuit 11 is in the second transmitting
Power supply is input between terminated line 10 and BOSA 8, and the distance between the ohm microstrip 2 ' of VTIC circuit 11 and 50 needs
Shorten as far as possible.
When BBU is input to the activity optical port 9 of simulation light delivery module by the optical signal that optical fiber sends, optical signal passes through
BOSA 8 converts optical signals to electric signal, and similarly, in order to realize the matched well of port, electric signal needs to be connect by first
Receiving match circuit 7 carries out first order impedance matching, this first receive match circuit 7 can close to BOSA 8, then,
Electric signal receives match circuit 4 and carries out second level impedance matching and third level impedance by the second reception match circuit the 6, the 3rd again
Matching, receives power supply circuit 5 and is received between match circuit 6 and the 3rd receives match circuit 4 second and be input into power supply, here can be with
Shorten the cabling received between the ohm microstrip of power supply circuit 5 and 50 as much as possible.Then, after by three-level impedance matching
Electric signal by the lifting electric signal of the first broad band amplifier 3 gain, the electric signal after lifting gain connects by radio frequency again
Device 1 is input into RRU.
Above-mentioned radio frequency connector can be pluggable structure, as shown in figure 5, being easily installed and maintenance simulation optical transport mould
Block.Radio frequency connector includes plug 20 and socket 21, and one end of plug 20 is fixed by welding on printed circuit board (PCB) 18, socket
21 one end is connected with RRU, and the other end is installed with the interworking of socket 21.The simulation light delivery module can also include housing, housing
Including upper cover plate 16 and lower cover 22, printed circuit board (PCB) 18 is fixed between upper cover plate 16 and lower cover 22 by screw 19, under
Cover plate both sides and intermediate ledge 33 are released with the exposed part of Copper Foil 46 of the both sides of printed circuit board (PCB) 18 and centre, can be formed
Signal shielding and the effect of channel signal isolation, BOSA 8 are fixed by welding on the pad of printed circuit board (PCB) 18, and BOSA8 leads to
Top briquetting 17 is crossed to be fixed in activity optical port 9.The simulation light delivery module have also been devised for improving electromagnetic compatibility characteristic
Shirt rim 15, and it is easy to the Handle Bar 23 extracted, the overall structure size that the simulation light delivery module is formed can be small-sized with compatibility
Pluggable light signal is received and transmitter (Small form-factor pluggable transceiver plus, SFP+),
Can be with digital optical module cage interworking.Simulation optical module in the embodiment of the present application can be with the schematic diagram of compatible SPF+ structural members
Can be as shown in figure 17.
For the structure of above-mentioned plug 20, as shown in fig. 6, the pluggable part 24 of plug 20 can be divided into first can
The pluggable part 27 of insertion/extraction portion 26 and second, the first pluggable part 26 is used for transmitting radio frequency signal, the second pluggable part
27 are used to transmit direct current signal, and the first pluggable part 26 uses micro coaxle structure, to ensure broadband character.
Plug 20 also includes the first welding portion 25, as shown in fig. 7, the first welding portion 25 includes the first pluggable part
26 corresponding first welding portions 36, the ground connection welding portion of the second 27 corresponding second welding portion of pluggable part 35 and first
34, the first ground connection welding portion 34 is welded on the end on printed circuit board (PCB) length direction.
For the structure of above-mentioned socket 21, as shown in figure 8, the pluggable part 37 of socket 21 can be divided into the 3rd can
The pluggable part 38 of insertion/extraction portion 39 and the 4th, the 3rd pluggable part 39 is used for transmitting radio frequency signal, the 4th pluggable part
38 are used to transmit direct current signal, and the 3rd pluggable part 39 uses micro coaxle structure, to ensure broadband character so that the electricity in broadband
Signal passes through.
Socket 21 also includes the second welding portion 41, as shown in figure 9, the second welding portion 41 includes the 3rd pluggable part
39 corresponding 3rd welding portions 43, the ground connection welding portion of the 4th 38 corresponding 4th welding portion of pluggable part 43 and second
40, the second ground connection welding portion 40 is welded on the bottom of printed circuit board (PCB).
In order that socket 21 can be inserted and surface mount, the signal end inside socket 21 can carry out 90 degree curved
Folding, as shown in Figure 10.
Plug 20 and the pairing of socket 21 are used, the schematic diagram after installation can be as shown in figure 11.
For the parts of above-mentioned BOSA 8, as shown in figure 12, by transmitting pin 28, reception pin 29 and BOSA optical ports outside it
30 compositions, it is possible to achieve electric signal to optical signal, the conversion of optical signal to electric signal, i.e. single fiber bi-directional transmission signal, Ke Yichuan
Defeated 1310nm (1260~1350nm), the signal of 1550nm (1470~1610nm) wavelength.
As shown in figure 13, the above-mentioned part of activity optical port 9, for connecting BOSA and fibre-optical splice, its optical adapter interface is
LC/uPC, it is pluggable.Printed circuit board pads insertion BOSA launches in pin gap (44) and reception pin gap (45), carries out
It is welded and fixed.
As shown in figure 14, above-mentioned BOSA optical ports 30 and printed circuit board (PCB) can carry out floating mount design, that is, design kidney-shaped
Screw hole and optical port gap, such as Figure 14, kidney-shaped screw hole (31) effect on printed circuit board (PCB)：BOSA has one in process
Fixed dimensional tolerance, after structural member and printed circuit board (PCB) are assembled, there is certain dislocation, and the design of kidney-shaped screw hole can absorb this
Dislocation, it is to avoid constructive interference.Activity optical port space 32, it is possible to achieve X when optical port and PCB are assembled with structural member, Y, Z-direction
Tolerance-absorbent, and ensure the smooth plug and contraposition of optical connector and optical port.
Design with narrow-band analog optical module of the prior art is contrasted, the simulation optical transport in the embodiment of the present application
Optical device cost and structural member low cost in module, convenient engineering installation.Radio frequency connector, broadband in circuit design amplify
The selection of device, match circuit and power supply circuit, realizes high-gain flat with preferable in frequency band that can be in 6GHz
Degree, to the vector modulation error (Error Vector Magnitude, EVM) and signal to noise ratio (Signal To of whole link
Noise Ratio, SNR) it is beneficial to.The test bandwidth comparison diagram that the embodiment of the present application tests bandwidth and prior art can be as
Shown in Figure 15.
By broadband system using the technical scheme of the application, the height of multiple frequency signals can be realized by a RRU
Capacity, meets the big flow demand of the mobile data of hot zones.If Figure 16 is that a RRU realizes four frequency signals
Capacity realizes the contrast schematic diagram of the capacity of single frequency signal with prior art.
Above-described specific embodiment, purpose, technical scheme and beneficial effect to the application have been carried out further
Describe in detail, should be understood that the specific embodiment that the foregoing is only the application, be not used to limit the application
Protection domain, all technical schemes in the application basis on, any modification, equivalent substitution and improvements done etc. all should
It is included within the protection domain of the application.
Claims (9)
1. it is a kind of to simulate light delivery module, it is characterised in that the simulation light delivery module includes radio frequency connector, transmitted in both directions
Optical signal is received and transmitting combiner BOSA, radiating circuit, receiving circuit and printed circuit board (PCB)；
The radio frequency connector, for transmitting telecommunication number and the connection printed circuit board (PCB) and radio frequency remote unit RRU, the electricity
Signal is the electric signal in broadband；
The BOSA, for the electric signal to be converted into optical signal in single fiber, and the optical signal is converted to described
Electric signal, the optical signal is the optical signal in broadband；
The receiving circuit, the gain of the electric signal received for lifting and carries out the impedance matching of the port；
The radiating circuit, the optical signal is converted into the increasing of the electric signal after the electric signal for BOSA described in lifting
Benefit and the impedance matching for carrying out the electric signal；
The printed circuit board (PCB), for welding each device in the simulation light delivery module.
2. simulation light delivery module according to claim 1, it is characterised in that the radio frequency connector includes plug and inserts
Seat；
The plug includes the first pluggable part and the second pluggable part, and the first pluggable part is used to transmit radio frequency
Signal, the second pluggable part is used to transmit direct current signal, and the first pluggable part uses micro coaxle structure；It is described
Plug also includes the first welding portion, and first welding portion includes corresponding first weld part in the described first pluggable part
Point, corresponding second welding portion in the second pluggable part and the first ground connection welding portion, the first ground connection weld part
Divide the end being welded on the printed circuit board (PCB) length direction；
The socket includes the 3rd pluggable part and the 4th pluggable part, and the 3rd pluggable part is used to transmit radio frequency
Signal, the 4th pluggable part is used to transmit direct current signal, and the 3rd pluggable part uses micro coaxle structure；It is described
Socket also includes the second welding portion, and second welding portion includes corresponding 3rd weld part in the described 3rd pluggable part
Point, corresponding 4th welding portion in the 4th pluggable part and the second ground connection welding portion, the second ground connection weld part
Divide the bottom for being welded on the printed circuit board (PCB)；
Wherein, the described first pluggable part and the described 3rd pluggable part interworking are installed, the second pluggable part with
The 4th pluggable part is connected to inserting connection, the second welding portion of the socket with the RRU.
3. simulation light delivery module according to claim 1 and 2, it is characterised in that the BOSA includes transmitting pin, connects
Closed tube pin and BOSA optical ports；
The transmitting pin is used for the optical signal output that will be input into after the conversion of the electric signal of the BOSA；The reception pin is used for
The electric signal output that will be input into after the conversion of the optical signal of the BOSA；The BOSA optical ports are used to be input into and export optical signal, institute
State transmitting pin and the reception pin and the printed circuit plate weld.
4. the simulation light delivery module according to claim any one of 1-3, it is characterised in that the receiving circuit includes the
One broad band amplifier, first receive match circuit, the second reception match circuit, the 3rd reception match circuit, reception power supply circuit
And first microstrip line；
Wherein, length direction that can be between the radio frequency connector in the transmitting terminal of the BOSA, described first receives matching electricity
Road, described second receive match circuit, the reception power supply circuit against first microstrip line, the 3rd reception match circuit
And first broad band amplifier pass sequentially through first microstrip line connection；
The gain of the electric signal that first broad band amplifier is received for lifting；Described first receives match circuit, described
Second reception match circuit and the 3rd reception match circuit are used to carry out impedance matching.
5. simulation light delivery module according to claim 4, it is characterised in that in the length of the reception pin of the BOSA
On direction, the reception match circuit using be sequentially connected in series resistance, parallel resistance to ground, parallel connection the first microstrip line magnetic bead and
Electric capacity, the mode of series connection PI shape attenuators are connected.
6. simulation light delivery module according to claim 5, it is characterised in that the radiating circuit is put including the second broadband
The big transmitting of device 14, first transmitting of match circuit 12, second match circuit 10, the microstrip line of VTIC circuit 11 and second；
Length direction that can be between the radio frequency connector in the receiving terminal of the BOSA, second broad band amplifier 14, institute
State the first transmitting match circuit 12, the second transmitting match circuit 10 and the VTIC circuit against the second microstrip line 2 '
11 pass sequentially through the second microstrip line cascade；
The gain of the electric signal that second broad band amplifier is received for lifting, the first transmitting match circuit and described
Two transmitting match circuits are used to carry out impedance matching.
7. simulation light delivery module according to claim 6, it is characterised in that in the length of the transmitting pin of the BOSA
On direction, the transmitting match circuit is using the magnetic bead and electric capacity of second microstrip line in parallel successively, series resistance, series connection PI
The mode of shape attenuator is connected.
8. simulation light delivery module according to claim 7, it is characterised in that the simulation light delivery module also includes shell
Body, the housing includes upper cover plate and lower cover；
The housing is used to form the device on printed circuit board (PCB) and the printed circuit board (PCB) protection and the isolation of electromagnetic signal.
9. simulation light delivery module according to claim 8, it is characterised in that the simulation light delivery module also includes living
Dynamic optical port, the activity optical port is provided with the groove for placing the BOSA, space, the activity is reserved between the groove
Optical port top is provided with the briquetting of semi-circular recesses, and for fixing and compressing the BOSA, the activity optical port is connected with optical fiber, uses
In the optical signal for receiving the Optical Fiber Transmission and by optical signal by the optical fiber output.
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| CN201710116461.9A CN106899351B (en) | 2017-02-28 | 2017-02-28 | A kind of simulation light delivery module |
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| CN107659355A (en) * | 2017-09-15 | 2018-02-02 | 北京百卓网络技术有限公司 | optical port testing device |
| CN111541488A (en) * | 2020-04-19 | 2020-08-14 | 大连优迅科技有限公司 | High-speed broadband microwave light emission module |
| CN112543061A (en) * | 2020-11-02 | 2021-03-23 | 安徽光纤光缆传输技术研究所(中国电子科技集团公司第八研究所) | Transmit-receive integrated high-speed signal optical transmission device and signal optical transmission method |
| CN113219828A (en) * | 2021-04-22 | 2021-08-06 | 中国电子科技集团公司第二十九研究所 | Control method for gain consistency of multi-channel analog optical module |
| CN111541488B (en) * | 2020-04-19 | 2024-05-03 | 大连优欣光科技股份有限公司 | High-speed broadband microwave light emitting module |
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| CN107659355A (en) * | 2017-09-15 | 2018-02-02 | 北京百卓网络技术有限公司 | optical port testing device |
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| CN113219828A (en) * | 2021-04-22 | 2021-08-06 | 中国电子科技集团公司第二十九研究所 | Control method for gain consistency of multi-channel analog optical module |
| CN113219828B (en) * | 2021-04-22 | 2022-07-05 | 中国电子科技集团公司第二十九研究所 | Control method for gain consistency of multi-channel analog optical module |
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