CN202617121U - Broadband intelligent micro-power light transmission module - Google Patents
Broadband intelligent micro-power light transmission module Download PDFInfo
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- CN202617121U CN202617121U CN 201220241135 CN201220241135U CN202617121U CN 202617121 U CN202617121 U CN 202617121U CN 201220241135 CN201220241135 CN 201220241135 CN 201220241135 U CN201220241135 U CN 201220241135U CN 202617121 U CN202617121 U CN 202617121U
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Abstract
The present utility model discloses a broadband intelligent micro-power light transmission module. The module comprises a radio frequency unit, a photoelectric converting unit, an optical path part and an eight-path radio frequency integration unit, the optical path part comprises an LD laser, an optical branching device (PLC) and a wavelength division multiplexing device (WDM) which are successively connected; the radio frequency unit is used for emitting multi-standard radio frequency signals, converting the radio frequency signals into optical signals through a photoelectric converting unit, and dividing the optical signals into eight parts through the optical branching device (PLC) and the wavelength division multiplexing device (WDM), and the eight-path radio frequency integration unit is used for merging the optical signals. By adopting the module, parts of cables can be saved and installing complexity can be reduced, as 3G communication is widespread, wastes caused by repeated construction can be avoided, and installing and use are more convenient. When the module is in use, indoor places can be covered by CDMA800, GSM900, DCS1800, TD-SCDMA, TD-LTE, WCDMA and other multi-standard radio frequency signals.
Description
Technical field
The utility model relates to the mobile communication technology field, specifically, is meant a kind of broad band intelligent micropower light delivery module.It is applied to multi-modulation scheme signal optical fibre transmission in the mobile communication, is applicable to that multi-modulation scheme radiofrequency signals such as CDMA800, GSM900, DCS1800, TD-SCDMA, TD-LTE and WCDMA are to indoor covering.
Background technology
Along with optical fiber communication is widely used in GSM, how to solve the blind spot problem that wireless signal covers preferably, undoubtedly the optical fiber repeater system plays very important effect; And be to influence the key factor that optical fiber repeater distributes as the intelligent optical module of optical fiber repeater core always.Form present situation according to present China mobile communications network system; Except China Telecom; All there are the GSM900MHz of use, DCS1800MHz system in all the other two China Mobile of tame operator and CHINAUNICOM; CHINAUNICOM has that to use in the world at present the most also be the most ripe 3-G (Generation Three mobile communication system) WCDMA network of technology in addition, moves the TD-SCDMA network that also has domestic independent intellectual property right, can multiple network can coexist in the quite a while in future.And in actual use, for satisfying the demand of unlike signal in the same coverage cell, the signal that must introduce multiple standard simultaneously covers.
As shown in Figure 1, it carries out the scheme block diagram of signal blind compensating for existing to indoor and outdoor intensive building place, during its VAS application-to-terminal service; Be one to one; And its opto-electronic conversion is to realize that by an extra near-end optical module this will cause repeated construction, must cause unnecessary waste.
The utility model content
The purpose of the utility model is to provide a kind of broad band intelligent micropower light delivery module.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of broad band intelligent micropower light delivery module; It comprises radio frequency unit, photoelectric conversion unit, light path part and octuple radio frequency unification unit; Described light path part comprises; The LD laser, optical branching device (PLC), the wavelength division multiplexer (WDM) that link to each other successively, described radio frequency unit is used to launch the multi-modulation scheme radiofrequency signal, and converts this radiofrequency signal to light signal through photoelectric conversion unit; Through described optical branching device and wavelength division multiplexer light signal is divided into eight parts again, through octuple radio frequency unification unit light signal is merged again.
Preferably, above-mentioned downlink radio-frequency signal module comprises successively matching network module, amplifier tube and the high pass filter that links to each other, respectively to the radiofrequency signal that is received mate, amplification and filtering.
Preferably, above-mentioned up radiofrequency signal module comprises the power splitter, amplifier tube, high-pass filtering, radio frequency attenuator, signal amplifier tube and the matching network module that link to each other successively.
Preferably, above-mentioned monitoring module comprises single-chip microcomputer and the communication chip that links to each other successively.
Preferably, above-mentioned light path part comprises LD laser, optical branching device and the wavelength division multiplexer (WDM) that links to each other successively.
Preferably, above-mentioned optical branching device adopts planar optical waveguide optical fiber splitter (PLC).
After adopting technique scheme; During use; This is novel can be simultaneously to carry out opto-electronic conversion with the signal of multiple standards such as GSM900, DCS1800 and WCDMA through same optical module; Send to far-end through one minute eight optical branching device then, synthetic one tunnel radiofrequency signal of up next octuple light signal is sent to the base station; This novel complexity of saving part cable and installation in today that 3G communication is popularized, will be avoided the waste that construction caused of repetition, installs and uses convenient.
Description of drawings
Fig. 1 is the existing scheme block diagram that indoor and outdoor intensive building place is carried out signal blind compensating;
Fig. 2 is the system block diagram of the utility model;
Fig. 3 is the theory diagram of the utility model near-end optical module;
Fig. 4 is the theory diagram of the utility model light path part;
Fig. 5 is the theory diagram of the utility model power splitter.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
With reference to shown in Figure 2, the utility model discloses a kind of broad band intelligent radio-frequency light transmission module, it comprises: radio frequency unit, photoelectric conversion unit, plane waveguide light shunt (PLC), wavelength division multiplexer (WDM), octuple radio frequency unification unit.Described radio frequency unit is used to launch the multi-modulation scheme radiofrequency signal; And convert this radiofrequency signal to light signal through photoelectric conversion unit; Through described plane waveguide light shunt and wavelength division multiplexer light signal is divided into eight parts again, through octuple radio frequency unification unit light signal is merged again.(please the description of section is corresponding consistent therewith with the unit title in Fig. 2)
With reference to shown in Figure 2; The radiofrequency signal of descending multi-modulation scheme becomes light signal to pass through plane waveguide light shunt (PLC) then electrical signal conversion through photoelectric conversion unit; In the present embodiment; It is meant one minute eight optical branching device, receives through detector (PD) to the broadband light module of terminal inner through Optical Fiber Transmission and converts light signal to signal of telecommunication electricity for after the radiofrequency signal of descending multi-modulation scheme, is sent to the downlink radio frequency link and amplifies the back and realized the signal of surrounding enviroment is covered by the antenna emission; After receiving the low noise amplification of upward signal that comes from portable terminal by antenna simultaneously through up radio frequency link; Transfer to far-end broadband light module and electrical signal conversion is become the modulation of light signal, receive to higher level's broadband light module detector (PD) through Optical Fiber Transmission then light signal is changed into the signal of telecommunication through laser (LD).In addition the communication monitoring unit be responsible for whole terminal condition monitoring control and with the communicating by letter of higher level unit.Power subsystem then is for each unit module reliable and stable power supply to be provided.
1 drags 8 optical modules to have 8 optical fiber interfaces, is used to connect subordinate's optical module, and whole module adopts integrated design, the near-end optical module is incorporated into make closely forr a short time together, installs easier.。
With reference to shown in Figure 3, radio frequency unit, it includes downlink radio-frequency signal modules A, up radiofrequency signal module B, light path part 4, power supply 16 and monitoring module C, wherein:
The downlink radio-frequency signal module, it includes matching network module 1, amplifier tube 2, the high pass filter 3 that links to each other successively, wherein:
The signal of this downlink radio-frequency signal module is concrete to be moved towards as follows:
By the modulated radio signal of higher level's multi-modulation scheme, get into matching network module 1, pass through amplifier tube 2 then; Signal is amplified, and the signal after the amplification gets into high pass filter 3, with the low-band signal filtering; Through light path part 4 electrical signal conversion is become the octuple light signal again; Each road light signal all contains GSM900, DCS1800 and WCDMA etc. plants the light signal of standards (Wavelength Division Multiplexing, wavelength division multiplexing is transmitted in through Optical Fiber Transmission to subordinate's optical module through WDM.The gain of wherein amplifying in the scope that partly is employed in 800MHz～2.2GHz is 15dB, and fluctuation is about the amplifier tube of 1dB.
With reference to shown in Figure 4, light path part 4, it includes LD laser, optical branching device and WDM, and line output third order intermodulation is-60dBc under it.
Wherein, optical branching device: adopt (PLC) planar optical waveguide optical fiber splitter, its feature is that volume is little, and operating wavelength range is wide, and reliability is high, and beam split is evenly good; Full optical fiber structure, polarization and Insertion Loss; High reliability, high directivity and return loss.
With reference to shown in Figure 3; Up radiofrequency signal module B; Comprise the power splitter 5, amplifier tube 6, high-pass filtering 7, radio frequency attenuator 8, signal amplifier tube 9 and the matching network module 10 that link to each other successively; Wherein: send light signal that the light signal that has multi-modulation scheme passes over through optical fiber by subordinate's optical module and get into WDM and let PD receive to become to pass the signal of telecommunication that changes multi-modulation scheme into eight PD are changed out 8 full system type pictorial signals of telecommunication to close the road together through amplifier tube 6 amplifications through 5 power are synthetic; Pass through high pass filter 7 filtering unwanted signals then; Then through radio frequency attenuator ATT8, through amplifier tube 9 signal is amplified then, through matching network module 10 the full system type pictorial radiofrequency signal is passed to the base station then.
With reference to shown in Figure 5, power splitter 5 selected frequency scopes are that 200M～2500MH fluctuation is about in the 5dB; Insert power loss 0.8dB; With a radiofrequency signal of octuple PD opto-electronic conversion (RF1～RF8); Two radiofrequency signals are passed through power splitter 5 synthetic a tunnel, and (RF9～RF12) (RF13 RF14), is passing through power splitter 5 unification road radiofrequency signals (RF15) at last on two unification roads at process power splitter 5 then.
It is 20dB that the first order and final stage amplifier tube are selected the gain in the scope of 800MHz～2.2GHz for use, and fluctuation is about 1dB; Attenuator is selected 6 figure place controlling attenuation devices for use, the 0.5dB stepping, and maximum attenuation 31.5dB has the characteristics of low-power consumption, low Insertion Loss.Line output third order intermodulation is-55dBc on it.
Power supply adopts the DC-DC supply voltage to adjust to+5V, to supply with system's operate as normal.
With reference to shown in Figure 3; Monitoring module C; Adopt single-chip microcomputer and communication chip; Utilize half two worker's patterns that the index of whole system is monitored, search descending monitor command and send order to through serial port chip 14 and issue communication chip 12 after MCU13 handles and be modulated to the 433.791MHz radiofrequency signal and carry out the electric light conversion through light path part 4 then through low pass filter 15 and penetrate light signal and send to far-end; Up subordinate responds then response results through communication chip 12 modulation the descending order that searches that comes; Advance people's electric light and convert light signal to through up laser then, the PD that passes to the near-end optical module through optical fiber receives into that opto-electronic conversion becomes the signal of telecommunication, closes the road through a power splitter 5 then; Pass through amplifier 6 again; Pass through low pass filter 11 again, last communication chip 12 receiving demodulations are issued MCU13 with the monitoring parameter of subordinate's optical module; Logical at last MCU sends to serial port chip 14, lets the user know.
During use, this is novel can be simultaneously to carry out one minute eight optical branching device of opto-electronic conversion with the signal of multiple standards such as GSM900, DCS1800, WCDMA through same optical module and sends to subordinate, with up synthetic one tunnel radiofrequency signal of octuple light signal of coming; This novel complexity of saving part cable and installation in today that 3G communication is popularized, will be avoided the waste that construction caused of repetition, installs and uses convenient.
The above; Be merely the preferable embodiment of the utility model; But the protection range of the utility model is not limited thereto; Any technical staff who is familiar with the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection range of the utility model.Therefore, the protection range of the utility model should be as the criterion with the protection range of claim.
Claims (6)
1. broad band intelligent micropower light delivery module; It is characterized in that: it comprises radio frequency unit, photoelectric conversion unit, light path part and octuple radio frequency unification unit; Described light path part comprises LD laser, optical branching device and the wavelength division multiplexer that links to each other successively; Described radio frequency unit is used to launch the multi-modulation scheme radiofrequency signal; And convert this radiofrequency signal to light signal through photoelectric conversion unit, and through described optical branching device and wavelength division multiplexer light signal is divided into eight parts again, through octuple radio frequency unification unit light signal is merged again.
2. broad band intelligent micropower light delivery module according to claim 1; It is characterized in that: described radio frequency unit; Include downlink radio-frequency signal module, up radiofrequency signal module, light path part, power supply and monitoring module; Described downlink radio-frequency signal module received RF signal also carries out amplification filtering, and signal is transferred to light path part; Described up radiofrequency signal module is closed the road with the signal of telecommunication, and amplification filtering sends to near-end; Described power supply provides electric energy for each module; Described monitoring module is monitored the index of above-mentioned each module.
3. broad band intelligent micropower light delivery module according to claim 2; It is characterized in that: described downlink radio-frequency signal module comprises successively matching network module, amplifier tube and the high pass filter that links to each other, respectively to the radiofrequency signal that is received mate, amplification and filtering.
4. according to claim 2 or 3 described broad band intelligent micropower light delivery modules; It is characterized in that: described up radiofrequency signal module comprises the power splitter, amplifier tube, high-pass filtering, radio frequency attenuator, signal amplifier tube and the matching network module that link to each other successively.
5. broad band intelligent micropower light delivery module according to claim 4 is characterized in that: described monitoring module comprises single-chip microcomputer and the communication chip that links to each other successively.
6. broad band intelligent micropower light delivery module according to claim 1 is characterized in that: described optical branching device adopts the planar optical waveguide optical fiber splitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220241135 CN202617121U (en) | 2012-05-25 | 2012-05-25 | Broadband intelligent micro-power light transmission module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220241135 CN202617121U (en) | 2012-05-25 | 2012-05-25 | Broadband intelligent micro-power light transmission module |
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| CN202617121U true CN202617121U (en) | 2012-12-19 |
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| CN 201220241135 Expired - Fee Related CN202617121U (en) | 2012-05-25 | 2012-05-25 | Broadband intelligent micro-power light transmission module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105141368A (en) * | 2015-07-13 | 2015-12-09 | 广州杰赛科技股份有限公司 | Optical fiber distribution system and method supporting multi-communication-standard access |
| CN105245280A (en) * | 2015-07-13 | 2016-01-13 | 广州杰赛科技股份有限公司 | Fiber distribution system with realization of integration of multiple networks and method |
| CN114024604A (en) * | 2021-12-07 | 2022-02-08 | 罗森伯格技术有限公司 | Optical module |
-
2012
- 2012-05-25 CN CN 201220241135 patent/CN202617121U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105141368A (en) * | 2015-07-13 | 2015-12-09 | 广州杰赛科技股份有限公司 | Optical fiber distribution system and method supporting multi-communication-standard access |
| CN105245280A (en) * | 2015-07-13 | 2016-01-13 | 广州杰赛科技股份有限公司 | Fiber distribution system with realization of integration of multiple networks and method |
| CN105141368B (en) * | 2015-07-13 | 2018-11-06 | 广州杰赛科技股份有限公司 | Support the optical fiber distribution system and method for multi-communication standard access |
| CN105245280B (en) * | 2015-07-13 | 2018-11-06 | 广州杰赛科技股份有限公司 | Realize the optical fiber distribution system and method for more net unifications |
| CN114024604A (en) * | 2021-12-07 | 2022-02-08 | 罗森伯格技术有限公司 | Optical module |
| WO2023103386A1 (en) * | 2021-12-07 | 2023-06-15 | 普罗斯通信技术（苏州）有限公司 | Optical module |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20170525 |