CN103812564A - Optical antenna system and radio frequency covering device thereof - Google Patents
Optical antenna system and radio frequency covering device thereof Download PDFInfo
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- CN103812564A CN103812564A CN201210453494.XA CN201210453494A CN103812564A CN 103812564 A CN103812564 A CN 103812564A CN 201210453494 A CN201210453494 A CN 201210453494A CN 103812564 A CN103812564 A CN 103812564A
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Abstract
The invention relates to an optical antenna system and a radio frequency covering device thereof. The system comprises a radio frequency access subsystem and an optical antenna subsystem which are connected through an optical fiber. The radio frequency access subsystem comprises a first digital signal processing module, at least one duplexer and an up/down frequency conversion module connected between the first digital signal processing module and the duplexer. The optical antenna subsystem comprises a signal distribution device and at least one radio frequency covering device which are connected through an optical fiber. The signal distribution device comprises a second optical port, a third optical port, a fourth optical port and a second digital signal processing module and a first wavelength division multiplexing/demultiplexing unit which are sequentially connected from the second optical port to the third optical port. The radio frequency covering device comprises a fifth optical port, a sixth optical port and a second wavelength division multiplexing/demultiplexing unit, a radio frequency processing module and a dual polarized antenna module which are sequentially connected from the fifth optical port. The system can conduct synergic covering with a traditional covering network and improves network covering depth.
Description
Technical field
The present invention relates to mobile communication signal covering system, more particularly, relate to optical fiber antenna system and radio frequency cladding system thereof.
Background technology
Mobile communication overlay network, through building for many years and developing, has been obtained very large achievement.But still there are some insoluble scenes: such as villa for the getting permission of site, villages within the city's transmission is laid, selection and the property of shop along street site coordinate all to exist many difficulties, legacy equipment is installed conflict, the transmission to antenna of inconvenience, resident's property and is laid the reasons such as difficulty and often cannot implement because volume is large.Hotel, community can be disposed compartment system in principle, but for the real target area that needs covering---indoor, usually have blind area and the weak area of coverage of signal, the loss of large stadium dome structure long transmission distance makes greatly limited transmission, and legacy system often can not effectively cover.
Summary of the invention
The object of this invention is to provide a kind of optical fiber antenna system and radio frequency cladding system thereof.
Optical fiber antenna system of the present invention comprises radio frequency access subsystem and optical fiber antenna subsystem, and the two connects by optical fiber;
Described radio frequency access subsystem comprises the first digital signal processing module, at least one duplexer and is connected in the up/down frequency-variable module between them, and the first digital signal processing module connects the first light mouth, for communicating by letter with optical fiber antenna subsystem;
Described optical fiber antenna subsystem comprises signal dispensing device and at least one radio frequency cladding system, and the two connects by optical fiber;
Described signal dispensing device comprises the second light mouth, the 3rd light mouth, the 4th light mouth and the second digital signal processing module and the first wavelength-division multiplex/demultiplex unit that connect successively from the second light mouth to the three light mouths, second and third light mouth is respectively used to communicate by letter with radio frequency cladding system with radio frequency access subsystem, the 4th light mouth is connected with the first wavelength-division multiplex/demultiplex unit, for communicating by letter with the local side of FTTX network;
Described radio frequency cladding system comprises the 5th light mouth, the 6th light mouth and the second wavelength-division multiplex/demultiplex unit, radio frequency processing module and the dual-polarized antenna modules that connect successively from the 5th light mouth, the 5th light mouth is for communicating by letter with signal dispensing device, the 6th light mouth is connected with the second wavelength-division multiplex/demultiplex unit, for communicating by letter with the user side of FTTX network.
In optical fiber antenna system of the present invention, can comprise a plurality of optical fiber antenna subsystems, a plurality of optical fiber antenna subsystems are connected with radio frequency access subsystem with cascade system or parallel way.
In optical fiber antenna system of the present invention, described signal dispensing device and radio frequency cladding system can be integrated in same housing, form optical fiber antenna.
In optical fiber antenna system of the present invention, described signal dispensing device and radio frequency cladding system also can be loaded on respectively in different housings, described signal dispensing device has a plurality of the 3rd light mouths, the first wavelength-division multiplex/demultiplex unit connects respectively a plurality of the 3rd light mouths by the first optical splitter, and a plurality of the 3rd light mouths connect respectively plurality of radio cladding system.
In optical fiber antenna system of the present invention, the first wavelength-division multiplex/demultiplex unit can be connected by the second optical splitter with the 4th light mouth.
In optical fiber antenna system of the present invention, described radio frequency cladding system further can also comprise the first radio frequency output interface, and the first radio frequency output interface is connected to described radio frequency processing module.
In optical fiber antenna system of the present invention, described radio frequency cladding system further can also also comprise mixer, the second radio frequency output interface and rf input interface, two inputs of mixer connect respectively described rf input interface and described radio frequency processing module, the output of mixer connects described the second radio frequency output interface, and the second radio frequency output interface is for connecting the cable TV panel of built-in aerial.
In optical fiber antenna system of the present invention, each module of described radio frequency cladding system is installed in same housing and forms an entirety, and the overall dimension of radio frequency cladding system can be 80 × 80 × 80mm to 300 × 150 × 110mm.
Radio frequency cladding system provided by the invention, comprise the 5th light mouth, the 6th light mouth and the second wavelength-division multiplex/demultiplex unit, radio frequency processing module and the dual-polarized antenna modules that connect successively from the 5th light mouth, the 5th light mouth is for communicating by letter with signal dispensing device, the 6th light mouth is connected with the second wavelength-division multiplex/demultiplex unit, for communicating by letter with the user side of FTTX network.
Preferably, the second wavelength-division multiplex/demultiplex unit, radio frequency processing module and dual-polarized antenna modules are cascading from top to bottom, and the overall dimension of radio frequency cladding system is less than 300 × 150 × 110mm.
The present invention has following beneficial effect:
This optical fiber antenna system is made up of radio frequency access subsystem and optical fiber antenna subsystem, adopts the two-way communication of the digital optical fiber mode of up-downgoing between the two, has realized optical fiber to antenna.And optical fiber antenna subsystem adopts wavelength-division multiplex technique, make the transmission of signal between its signal dispensing device and radio frequency cladding system can the fiber-to-the-home cable resource of multiplexing fixed network.Owing to adopting Optical Fiber Transmission, can reduce system loss.
Its radio frequency cladding system is integrated antenna element, realize antenna feeder and active equipment is integrated, without redeploying antenna feeder, directly settling signal covers, can be flexibly hidden be arranged in the fixed network such as mesh box, information box facility or the urban operating mechanism such as lamp stand, monitoring bar on, respective regions is carried out to signal covering, get permission the problem such as difficulty, resident's dislike thereby overcome existing equipment site, can save the expensive expense of antenna feeder installation and embellished antenna simultaneously.
Its radio frequency cladding system utilizes 75 ohmage converter techniques, can cover with Broadcasting Cable Network cable TV network is collaborative, make signal of communication and cable TV signal synchronous transmission to indoor, and can transfer to different rooms, increased the network coverage degree of depth, and saved construction period and expense.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the first embodiment optical fiber antenna system;
Fig. 2 is the internal structure schematic diagram of its radio frequency cladding system;
Fig. 3 is the application schematic diagram of optical fiber antenna system;
Fig. 4 is the application schematic diagram that optical fiber antenna system is registered one's residence;
Fig. 5 is the theory diagram of the second embodiment optical fiber antenna system.
Embodiment
Optical fiber antenna system of the present invention can be utilized existing resource (as residence network, cable TV network), by disposing ground overlay network and the overlay network of registering one's residence, the collaborative covering of realization and traditional overlay network (RRU+ compartment system, macro base station etc.), thereby the degree of depth of increasing network coverage.Below in conjunction with drawings and Examples, the present invention will be further described.
Fig. 1 shows the principle of the first embodiment optical fiber antenna system.As shown in Figure 1, the first embodiment optical fiber antenna system comprises: radio frequency access subsystem 1 and optical fiber antenna subsystem 2, radio frequency access subsystem 1 is for realizing multi-modulation scheme source signal access function, optical fiber antenna subsystem 2 covers for realizing digital data transmission, distribution and radio frequency, and the two connects by optical fiber.In Fig. 1,3 is FTTX network (residence network), and it comprises local side 31(OLT, optical line terminal), user side 32(ONU, optical network unit) and optical splitter 33,4 be mixer, they belong to existing resource.
Radio frequency access subsystem 1 comprises the first digital signal processing module 15 and two duplexers 11,12, two duplexers 11,12 connect the first digital signal processing module 15 by corresponding up/down frequency-variable module 13,14 respectively, be respectively used to the radiofrequency signal of receive/transmitting different systems, the first digital signal processing module 15 connects the first light mouth 16, for communicating by letter with optical fiber antenna subsystem 2.Understandably, in the present invention, in radio frequency access subsystem 1, the quantity of duplexer is not limited to two, and the quantity of duplexer is relevant with the kind of signaling mode, can need to arrange flexibly according to practical application, and can also be one or more.
Optical fiber antenna subsystem 2 comprise in signal dispensing device 21 and at least one radio frequency cladding system 22(Fig. 1 only show a radio frequency cladding system 22), signal dispensing device 21 is connected by optical fiber with radio frequency cladding system 22.
Signal dispensing device 21 comprises the second light mouth 211, the 3rd light mouth (OPT mouth) 212, the 4th light mouth (PON mouth) 213, and the second digital signal processing module 214 connecting successively to the 3rd light mouth 212 from the second light mouth 211 and the first wavelength-division multiplex/demultiplex unit 215, the second light mouth 211 is for communicating by letter with radio frequency access subsystem 1, the 3rd light mouth 212 is for communicating by letter with radio frequency cladding system 22, the 4th light mouth 213 is connected with the first wavelength-division multiplex/demultiplex unit 215, for communicating by letter with the local side 31 of FTTX network 3, specifically can be as shown in fig. 1, the 4th light mouth 213 is connected with the optical splitter 33 of FTTX network 3, realize and communicating by letter with local side 31.
Radio frequency cladding system 22 comprises the 5th light mouth 221, the 6th light mouth (PON mouth) 222 and the second wavelength-division multiplex/demultiplex unit 223, radio frequency processing module 224 and the dual-polarized antenna modules 225 that connect successively from the 5th light mouth 221, the 5th light mouth 221 is for communicating by letter with signal dispensing device 21, the 6th light mouth 222 is connected with the second wavelength-division multiplex/demultiplex unit 223, for communicating by letter with the user side 32 of FTTX network 3.
In down link, radio frequency access subsystem 1 receives after each standard radiofrequency signal, first convert thereof into intermediate-freuqncy signal by converter technique, then carry out after the correlated digital signals processing such as signal filtering, power amplification, convert digital optical signal to, deliver to optical fiber antenna subsystem 2 by optical fiber transmission.After the signal dispensing device 21 of optical fiber antenna subsystem 2 receives digital optical signal, by the second digital signal processing module 214, digital optical signal process is processed, change into analog optical signal, with together with the light signal of the local side 31 from FTTX network after the first wavelength-division multiplex/demultiplex unit 215 is multiplexing, deliver to radio frequency cladding system 22 by optical fiber transmission, in the second wavelength-division multiplex/demultiplex unit 223 after settling signal demultiplexing, the light signal of FTTX is sent to the user side 32 of FTTX network, signal of communication frequency up-converted is become to radiofrequency signal, after amplifying, radiate by the dual-polarized antenna modules 225 in radio frequency cladding system 22.
In up link, the radiofrequency signal of the various standards that radio frequency cladding system 22 is collected dual-polarized antenna modules 225 is carried out the processing such as low noise amplification and filtering, and convert thereof into as digital signal, carry out, after wavelength division multiplexing, delivering to signal dispensing device 21 by optical fiber transmission with the light signal of the user side 32 that comes from FTTX network.Multiplexed signals is after the first wavelength-division multiplex/demultiplex unit 215 demultiplexings, the light signal of FTTX is sent to the local side 31 of FTTX network 3 through the 4th light mouth 213, signal of communication is after the second digital signal processing module 214 is processed, be converted into digital optical signal, by optical fiber transmission to radio frequency access subsystem 1.Radio frequency access subsystem 1 carries out corresponding digital signal processing and frequency conversion to receiving digital optical signal, is reduced into radiofrequency signal and is sent to information source.
Fig. 2 shows the internal structure of radio frequency cladding system 22.As shown in Figure 2, the second wavelength-division multiplex/demultiplex unit 223, radio frequency processing module 224 and the dual-polarized antenna modules 225 of radio frequency cladding system 22 are cascading from top to bottom.In Fig. 2, comprise an independently intermediate frequency process module 220, be arranged between the second wavelength-division multiplex/demultiplex unit 223 and radio frequency processing module 224, for completing the conversion between intermediate-freuqncy signal and radiofrequency signal, i.e. frequency conversion function; Radio frequency processing module 224 mainly completes radiofrequency signal power amplification; Dual-polarized antenna modules 225 mainly completes the transmission-receiving function of radiofrequency signal.In some embodiments, also intermediate frequency process module 220 and radio frequency processing module 224 can be integrated.
Radio frequency cladding system 22 further comprises the first radio frequency output interface 226, the first radio frequency output interface 226 and is connected to radio frequency processing module 224.In the time that optical fiber antenna system is used for registering one's residence covering, by the first radio frequency output interface 226, utilize mixer 4, signal and cable TV (CATV) signal can be closed to road, utilize cable TV network that signal is transferred to each room, realize signal in room by the cable TV panel of built-in aerial and cover.
In design process, pass through to adjust the height of half-wave dipole in antenna, and adopt the material of PCB, can effectively reduce antenna whole height, realize Anneta module microminiaturization, thereby can further dwindle the volume of radio frequency cladding system 22.The overall dimension of radio frequency cladding system 22 is less than 300 × 150 × 110mm conventionally, and effective power (plant capacity and antenna gain sum) is generally 2W to 20W.In some embodiment, the overall dimension of radio frequency cladding system 22 is only 90 × 90 × 90mm, and also having the overall dimension of some relatively high power radio frequency cladding systems 22 is only also 283 × 130 × 108mm.
According to practical application scene, signal dispensing device 21 and radio frequency cladding system 22 can be selected different compound modes: signal dispensing device 21 and radio frequency cladding system 22 can be integrated in formation optical fiber antenna in same housing, realize " 0 loss " optical fiber to antenna, promote information source efficiency; Signal dispensing device 21 and radio frequency cladding system 22 also can be loaded on respectively in different housings, between the two, adopt optical fiber to connect, and, a plurality of the 3rd light mouths 212 are set can to signal dispensing device 21, the first wavelength-division multiplex/demultiplex unit 215 connects respectively a plurality of the 3rd light mouths 212 by the first optical splitter 216, a plurality of the 3rd light mouths 212 connect respectively plurality of radio cladding system 22, can realize like this distribution again of signal, expand networking scale.
This optical fiber antenna system can be in conjunction with traditional communication covering system, dispose by urban operating mechanisms such as the fixed network such as mesh box, information box facility and light pole, monitoring bars register one's residence overlay network and ground overlay network, the collaborative covering of realization and traditional overlay network, the degree of depth of increasing network coverage.Fig. 3 has schematically shown the application of optical fiber antenna system.As shown in Figure 3, this optical fiber antenna system both can be deployed in radio frequency cladding system 22 the municipal resource such as street lamp 3a, monitoring bar 3b, construct outdoor ground overlay network, also can combine with FTTX network 3 and build the overlay network of registering one's residence, in Fig. 3,3c represents the cable TV panel of the built-in aerial in room, and 3d represents the coaxial cable of cable television network, and 3e represents the optical cable of FTTX net.Access when radio frequency access subsystem 1 can be realized 2G, 3G, LTE multi-modulation scheme source signal.
In Fig. 3, optical fiber antenna system comprises a plurality of optical fiber antenna subsystems 2, a plurality of optical fiber antenna subsystems 2 are connected to respectively a plurality of first light mouths of radio frequency access subsystem 1 by a plurality of optical fiber, that is, a plurality of optical fiber antenna subsystems 2 are connected with radio frequency access subsystem 1 with parallel way.In some embodiments, a plurality of optical fiber antenna subsystems 2 also can adopt cascade system to be connected with radio frequency access subsystem 1, or adopt hybrid mode.
Fig. 4 has schematically shown the application that optical fiber antenna system is registered one's residence.As shown in Figure 4, radio frequency cladding system 22 can be arranged in the information box 4a of each floor, in multimedia information box 4a, close road from the radiofrequency signal of radio frequency cladding system 22 with from the cable TV signal of CATV circuit by mixer 4, utilize mounted CATV cable 4b to be distributed to each room 4c-4f, realize the radiation of signal by the cable TV panel 4h that built-in aerial is installed, and do not affect original TV signal.In Fig. 4,4g represents the light current well of building, and 4j represents television set.
Fig. 5 shows the principle of the second embodiment optical fiber antenna system.As shown in Figure 5, the second embodiment optical fiber antenna system comprises: for the optical fiber antenna subsystem 2 of realizing the radio frequency access subsystem 1 of multi-modulation scheme source signal access function and covering for realizing digital data transmission, distribution and radio frequency, the two connects by optical fiber.In Fig. 1,3 is FTTX network (residence network), and it comprises local side 31(OLT, optical line terminal) and user side 32(ONU, optical network unit).
Radio frequency access subsystem 1 comprises the first digital signal processing module 15 and two duplexers 11,12, two duplexers 11,12 connect the first digital signal processing module 15 by corresponding up/down frequency-variable module 13,14 respectively, be respectively used to the radiofrequency signal of receive/transmitting different systems, the first digital signal processing module 15 connects the first light mouth 16, for communicating by letter with optical fiber antenna subsystem 2.
Optical fiber antenna subsystem 2 comprise in signal dispensing device 21 and at least one radio frequency cladding system 22(Fig. 2 only show a radio frequency cladding system 22), signal dispensing device 21 is connected by optical fiber with radio frequency cladding system 22.
Signal dispensing device 21 comprises the second light mouth 211, the 3rd light mouth (OPT mouth) 212, the 4th light mouth (PON mouth) 213 and the second digital signal processing module 214, the first wavelength-division multiplex/demultiplex unit 215 and the first optical splitter 216 that connect successively to the 3rd light mouth 212 from the second light mouth 211, the second light mouth 211 is for communicating by letter with radio frequency access subsystem 1, the 3rd light mouth 212 is for communicating by letter with radio frequency cladding system 22, and the 4th light mouth 213 connects the first wavelength-division multiplex/demultiplex unit 215 by the second optical splitter 217.Can find out, one of difference of the second embodiment and the first embodiment: in the second embodiment, signal dispensing device 21 is integrated with the second optical splitter 217, the 4th light mouth 213 connects the first wavelength-division multiplex/demultiplex unit 215 by the second optical splitter 217, like this, signal dispensing device 21 can be connected to the front end of optical splitter in FTTX network 3, realizes and the communicating by letter of local side 31.
Radio frequency cladding system 22 comprises the 5th light mouth 221, the 6th light mouth (PON mouth) 222, and the second wavelength-division multiplex/demultiplex unit 223 connecting successively from the 5th light mouth 221, radio frequency processing module 224 and dual-polarized antenna modules 225, the 5th light mouth 221 is for communicating by letter with signal dispensing device 21, the 6th light mouth 222 is connected with the second wavelength-division multiplex/demultiplex unit 223, for communicating by letter with the user side 32 of FTTX network 3, radio frequency cladding system 22 also comprises mixer 227, the second radio frequency output interface 228 and rf input interface 229, two inputs of mixer 227 connect respectively described rf input interface 229 and described radio frequency processing module 224, the output of mixer 227 connects described the second radio frequency output interface 228, the second radio frequency output interface 228 is for connecting the cable TV panel of built-in aerial.Can find out, in two: the second embodiment of the difference of the second embodiment and the first embodiment, radio frequency cladding system 22 is integrated with mixer 227, without external mixer, can realize the road with cable TV signal He.In the time of application the second embodiment, need by splitter by Hou He road, mixer 227He road signal separately, realize the Distributed coverage of two kinds of signals, for the selection of splitter at the final area of coverage (in room), should be the same with mixer 227, impedance phase coupling.
The optical fiber antenna system of some embodiment has the feature of multiplexingization of transmission and the microminiaturization of radio frequency cladding system.The integrated design of antenna feeder active equipment, can solve that site is got permission, resident's dislike, saved that antenna feeder is installed and the expense of expensive embellished antenna simultaneously.Radio frequency cladding system is can be flexibly hidden be arranged in the fixed network such as mesh box, information box facility or the urban operating mechanism such as lamp stand, monitoring bar on, can effectively reduce in legacy communications system networking process siting of station property and coordinate difficult, equipment complicated problem is installed.Adopt wavelength division multiplexing and impedance transformation, make its transmission can the fiber-to-the-home cable resource of multiplexing fixed network, the copper cable resource of Broadcasting Cable Network cable TV, realize that antenna is registered one's residence and not distribution, the intensive construction of chummery, greatly shorten construction period.Thereby efficiently solve siting of station difficulty, transmission pipeline lay difficult, lower deployment cost is high and the bottleneck of large restriction networking of networking cycle long four.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is also not only confined to above-described embodiment, and all technical schemes belonging under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. an optical fiber antenna system, is characterized in that, comprising: radio frequency access subsystem (1) and optical fiber antenna subsystem (2), and the two connects by optical fiber;
Described radio frequency access subsystem (1) comprises the first digital signal processing module (15), at least one duplexer (11) (12) and is connected in the up/down frequency-variable module (13) (14) between them, the first digital signal processing module (15) connects the first light mouth (16), for communicating by letter with optical fiber antenna subsystem (2);
Described optical fiber antenna subsystem (2) comprises signal dispensing device (21) and at least one radio frequency cladding system (22), and the two connects by optical fiber;
Described signal dispensing device (21) comprises the second light mouth (211), the 3rd light mouth (212), the 4th light mouth (213) and the second digital signal processing module (214) and the first wavelength-division multiplex/demultiplex unit (215) that connect successively from the second light mouth to the three light mouths, second and third light mouth is respectively used to communicate by letter with radio frequency cladding system (22) with radio frequency access subsystem (1), the 4th light mouth is connected with the first wavelength-division multiplex/demultiplex unit, for communicating by letter with the local side (31) of FTTX network (3);
Described radio frequency cladding system (22) comprises the 5th light mouth (221), the 6th light mouth (222) and the second wavelength-division multiplex/demultiplex unit (223), radio frequency processing module (224) and the dual-polarized antenna modules (225) that connect successively from the 5th light mouth, the 5th light mouth is for communicating by letter with signal dispensing device (21), the 6th light mouth is connected with the second wavelength-division multiplex/demultiplex unit, for communicating by letter with the user side (32) of FTTX network (3).
2. optical fiber antenna system according to claim 1, it is characterized in that, comprise a plurality of optical fiber antenna subsystems (2), a plurality of optical fiber antenna subsystems (2) are connected with radio frequency access subsystem (1) with cascade system or parallel way.
3. optical fiber antenna system according to claim 1, is characterized in that, described signal dispensing device (21) and radio frequency cladding system (22) are integrated in same housing, forms optical fiber antenna.
4. optical fiber antenna system according to claim 1, it is characterized in that, described signal dispensing device (21) and radio frequency cladding system (22) are loaded on respectively in different housings, described signal dispensing device has a plurality of the 3rd light mouths (212), the first wavelength-division multiplex/demultiplex unit (215) connects respectively a plurality of the 3rd light mouths (212) by the first optical splitter (216), and a plurality of the 3rd light mouths connect respectively plurality of radio cladding system.
5. optical fiber antenna system according to claim 1, is characterized in that, the first wavelength-division multiplex/demultiplex unit (215) is connected by the second optical splitter (217) with the 4th light mouth (213).
6. optical fiber antenna system according to claim 1, it is characterized in that, described radio frequency cladding system (22) also comprises the first radio frequency output interface (226), and the first radio frequency output interface (226) is connected to described radio frequency processing module (224).
7. optical fiber antenna system according to claim 1, it is characterized in that, described radio frequency cladding system (22) also comprises mixer (227), the second radio frequency output interface (228) and rf input interface (229), two inputs of mixer (227) connect respectively described rf input interface (229) and described radio frequency processing module (224), the output of mixer connects described the second radio frequency output interface (228), and the second radio frequency output interface is for connecting the cable TV panel of built-in aerial.
8. optical fiber antenna system according to claim 1, it is characterized in that, each module of described radio frequency cladding system (22) is installed in same housing and forms an entirety, and the overall dimension of radio frequency cladding system (22) is 80 × 80 × 80mm to 300 × 150 × 110mm.
9. a radio frequency cladding system, it is characterized in that, comprise the 5th light mouth (221), the 6th light mouth (222) and the second wavelength-division multiplex/demultiplex unit (223), radio frequency processing module (224) and the dual-polarized antenna modules (225) that connect successively from the 5th light mouth, the 5th light mouth is for communicating by letter with signal dispensing device (21), the 6th light mouth is connected with the second wavelength-division multiplex/demultiplex unit, for communicating by letter with the user side (32) of FTTX network (3).
10. radio frequency cladding system according to claim 9, it is characterized in that, the second wavelength-division multiplex/demultiplex unit, radio frequency processing module (224) and dual-polarized antenna modules (225) are cascading from top to bottom, and the overall dimension of radio frequency cladding system is less than 300 × 150 × 110mm.
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| CN201210453494.XA CN103812564A (en) | 2012-11-13 | 2012-11-13 | Optical antenna system and radio frequency covering device thereof |
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| CN201210453494.XA CN103812564A (en) | 2012-11-13 | 2012-11-13 | Optical antenna system and radio frequency covering device thereof |
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| CN202374404U (en) * | 2011-12-22 | 2012-08-08 | 深圳国人通信有限公司 | Multiservice passive optical network system |
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| US20060182446A1 (en) * | 2005-02-17 | 2006-08-17 | Samsung Electronics Co.; Ltd | Integrated wired and wireless WDM PON apparatus using mode-locked light source |
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