CN201975490U - Ultra-wide band CATV signal combiner - Google Patents
Ultra-wide band CATV signal combiner Download PDFInfo
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- CN201975490U CN201975490U CN2011201097294U CN201120109729U CN201975490U CN 201975490 U CN201975490 U CN 201975490U CN 2011201097294 U CN2011201097294 U CN 2011201097294U CN 201120109729 U CN201120109729 U CN 201120109729U CN 201975490 U CN201975490 U CN 201975490U
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Abstract
The utility model discloses an ultra-wide band CATV (Community Antenna Television) signal combiner comprising a combining port, a first port, a second port, a third port, a fourth port, a fifth port, a first low-pass filter, a second low-pass filter, a high-pass filter, a first band filter, a second band filter, and a third band filter. Five paths of signal sources comprise a first signal source with frequency under 860MHz, a second signal source with frequency from 950MHz to 1.1GHz, a third signal source with frequency from 1.2GHz to 1.7GHz, a fourth signal source with frequency from 1.8GHz to 2.3GHz, and a fifth signal source with frequency from 2.4GHz to 2.8GHz. The ultra-wide band CATV signal combiner adopts a circuit design of frequency division and two-stage tandem, can meet the requirements of low insertion loss and high isolation of ultra-wide band signals, improves ultra-wide band signal combining capacity, and meets the business development requirement of the broadcasting three-network integration to broadcast television high-definition interaction data, WiFi, 3G wireless application and the like.
Description
Technical field
The utility model relates to a kind of signals such as Digital Television, high frequency E OC, 3G and WIFI that are used for and closes the equipment that handle on the road, relates in particular to the multiple-frequency signal mixer of super wideband.
Background technology
Mixer is that the radiofrequency signal with the above different frequency of two-way mixes and forms a device of radiofrequency signal output of having a lot of social connections band, uses very extensively at the indoor covering system of moving communicating field, is applicable to repeaters such as GSM, CDMA.In recent years, what wideband had appearred in multimedia application such as mobile communication, WIFI, modulating FM closes the road product, closes the development trend that the road product presents the multichannel wideband.
In January, 2010 State Council's decision accelerates to advance the integration of three networks development of telecommunications network, broadcasting and television network, the Internet, realizes that three nets interconnect, resource-sharing, and multiple services such as speech, data and radio and television are provided for the user.For the radio and TV operator, how to make one wideer, faster, more excellent, the network that adapts to integration of three networks business development demand has become inevitable problem, and Access Network is vital, and this is the core technology of broadcasting and television network technical system of future generation.
Close the road treatment facility and obtained extensive application,, close the road product and become urgent day by day in the innovation research and development of digital TV network system along with the development need of the integration of three networks in the cable TV field.Broadcasting and TV need the business of radio and television, high definition, interaction data at the needs of the integration of three networks, the wireless applications such as WIFI, 3G that also need the user to press for.
At present mixer mainly support mobile communication GSM, DCS, 3G and WIFI multiple-frequency signal close the road,
Be applied in fields such as indoor covering system, the road of closing of wireless mobile service signal often can only be provided, and the road of closing of service signals such as radio and television, interactive television data is not provided, can not be applicable to the innovation needs of the broadcasting and TV integration of three networks for super broadband signal such as radio and television, high definition, interaction data, WIFI, 3G wireless applications.
The utility model content
The purpose of this utility model provides a kind of cable TV signal mixer of super wideband, and handle on the road of closing that can be used for signals such as radio and television, Digital Television, high frequency E OC, 3G and WIFI.
For achieving the above object, technical solution adopted in the utility model is: the cable TV signal mixer of this super wideband, comprise and close road port, first port, second port, the 3rd port, the 4th port, five-port, first low pass filter, second low pass filter, high pass filter, first band pass filter, second band pass filter and the 3rd band pass filter, first low pass filter is used for receiving first signal source through first port, high pass filter is used for receiving the secondary signal source through second port, and first low pass filter is connected with described second low pass filter respectively with high pass filter; Described first band pass filter is used for receiving the 3rd signal source through the 3rd port, second band pass filter is used for receiving the 4th signal source through the 4th port, the 3rd band pass filter is used for receiving the 5th signal source through five-port, and second low pass filter, first band pass filter, second band pass filter and the 3rd band pass filter close the described road port that closes of Lu Houyu and be connected with output signal through inside.
First signal source of above-mentioned 5 tunnel signal sources refers to the following frequency signal of 860MHz, and unidirectional business such as simulated television, Digital Television and FM broadcasting are provided; The secondary signal source refers to 950MHz～1.1GHz frequency signal, is used for EOC high frequency two-way broadband and inserts, and two-way interactive business such as data, video content are provided; The 3rd signal source refers to 1.2GHz～1.7GHz frequency signal, is used for the transmission intermediate frequency signal, and the more broadcasting service of multicapacity such as high definition is provided; The 4th signal source refers to 1.8GHz～2.3GHz frequency signal, is used to realize that the indoor covering or the high-speed data of 3G signal are descending; The 5th signal source refers to 2.4GHz～2.8GHz, is used to realize WIFI, the indoor covering of WIMAX wireless signal.
Compared with prior art, the beneficial effects of the utility model are:
(1) provide the signal of super wideband to close the road disposal ability: the utility model provides 5 receiver ports, close 47-860MHz, 950MHz～1.1GHz frequency signal that the road frequency can be supported low frequency, the ultra-high frequency signal of 2.4GHz～2.8GHz also can be provided, spectral bandwidth covers 2.8GHz nearly, is the novel signal mixer of a super wideband.(2) development need of the broadcasting and TV reply integration of three networks, the also technology that provides a kind of multi-service to merge for communication, telecom operators can be provided the utility model fully.The utility model is supported multifrequency business such as Digital Television, mobile communication, wireless application, can insert the multiple network system on a broadcasting and TV Access Network, carries out the operation of multiple business.(3) the utility model will provide a strong assurance for the access technology innovation of broadcasting and television network technical system of future generation.
Description of drawings
Fig. 1 is a structure principle chart of the present utility model;
Fig. 2 is the connection diagram of one of them embodiment of the digital TV network that relates to of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Referring to Fig. 1, the cable TV signal mixer of super wideband comprises that 5 signal input ports and 1 close road port (being output port), wherein, port one, port 2, port 3, port 4, port 5 are signal input port, and port 6 is the road port that closes as output port.Port one among Fig. 1 is used to import first via signal source, and first via signal source is the following frequency signal of 860MHz, is used for business such as Digital Television and FM broadcasting; Port 2 is used to import the second tunnel signal source, and the second tunnel signal source is 950MHz～1.1GHz frequency signal, is used for EOC high frequency two-way broadband and inserts, and two-way interactive business such as data, video content are provided; Port 3 is used to import the Third Road signal source, and the Third Road signal source is 1.2GHz～1.7GHz frequency signal, is used for the transmission intermediate frequency signal, and the more broadcasting service of multicapacity such as high definition is provided; Port 4 is used to import the four tunnel signal source, and the four tunnel signal source is 1.8GHz～2.3GHz frequency signal, is used to realize that the indoor covering or the high-speed data of 3G signal are descending; Port 5 is used to import the five tunnel signal source, and the five tunnel signal source is 2.4GHz～2.8GHz frequency signal, is used to realize WIFI, the indoor covering of WIMAX wireless signal.
The utility model is different from present GSM/CDMA signal combiner, broadband signal mixer etc., and it supports the super bandwidth signals frequency of 47MHz-2.8GHz, possesses 5 tunnel signal source input ports.Circuit design of the present utility model adopts the mode of frequency-division section, two-stage tandem, and design principle is as follows:
As shown in Figure 1, the signal of port one input links to each other with first low pass filter, and first low pass filter is a low pass filter, and cut-off frequency is 860MHz, guarantees high-quality the passing through of the following frequency signal of 860MHz; The signal of port 2 inputs links to each other with high pass filter, and high pass filter is a high pass filter, and cut-off frequency is 950MHz, guarantees high-quality the passing through of the above frequency signal of 950MHz.
As first low pass filter of the utility model mixer prime part, the conventional design method of high pass filter is to adopt lumped parameter design, be on microstrip line, to use compositions such as inductance coil and electric capacity, this mode be the television system device the mode that generally adopts, advantage is that volume is little, shortcoming is an index error, the reliability deficiency.Consider that lumped parameter reliability deficiency, consistency are relatively poor, easy index deterioration can be out of shape as coil in the vibration place, it is low to fall the experiment percent of pass that rolls, and coil produces Stress Release in long-time the use, index and dispatch from the factory inconsistent, the mode of cavity body filter and cavity machining is adopted in institute's preceding stage design, and entire product is made up of metal and medium.
Be input to second low pass filter after the signal of first low pass filter and high pass filter output mixes, second low pass filter is a low pass filter, and cut-off frequency is 1.1GHz, guarantees high-quality the passing through of the following frequency signal of 1.1GHz.The signal of port 3 inputs links to each other with first band pass filter, and first band pass filter can cover the frequency band that transmits and receives of its passage, and frequency range is 1.2GHz～1.7GHz; The signal of port 4 inputs links to each other with second band pass filter, and second band pass filter can cover the frequency band that transmits and receives of its passage, and frequency range is 1.8GHz～2.3GHz; The signal of port 5 inputs links to each other with the 3rd band pass filter, and the 3rd band pass filter can cover the frequency band that transmits and receives of its passage, and frequency range is 2.4GHz～2.8GHz.
Second low pass filter, first band pass filter, second band pass filter and the 3rd band pass filter as level part behind the utility model mixer adopt the cavity body filter design, be coupled by window between the adjacent cavity, volume by controlling each cavity, height etc., under high-precision processing (percentage millimeter level), the may command resonance frequency, suppress passing through of other frequency, the device, structure, PCB and the technology that adopt have good high frequency characteristics, circuit design must make several signals that good isolation is arranged, and guarantees that the inhibition of 5 road signals reaches best.
The signal of second low pass filter, first band pass filter, second band pass filter and the output of the 3rd band pass filter mixes the back by exporting as the port 6 that closes road port.
The utility model mixer can guarantee low Insertion Loss, the high-isolation requirement of low frequency and the super bandwidth signals of high frequency, and under the prerequisite that guarantees technical indicator, volume is moderate, cost is lower.
The digital TV network that the utility model relates to can use of the prior art any, Fig. 2 shows wherein one type.As shown in Figure 2, the cable TV signal mixer of the super wideband of the utility model generally is installed in the corridor unit of Digital Television cable network, the utility model mixer inserts signal, intermediate-freuqncy signal, 3G signal and WIFI, WIMAX wireless signal by after 5 receiving ports receptions and closing the road processing with broadcast television signal, EOC high frequency two-way broadband, be transferred to the branch distributor of super wideband with closing the road signal by the cable line, the branch distributor of super wideband with input signal equably demultiplexing (for example 4 tunnel) output in the indoor distributor of different user.Each indoor distributor outputs to input signal in the subscriber box in the room, perhaps with one road signal equably demultiplexing output in the subscriber box of chummery not, subscriber box receives the signal of coaxial cable and the standard interface of various signals is provided to the user, the cable TV signal that transmits in the coaxial cable will be blended in, eoc signal, intermediate-freuqncy signal, 3G signal and WIFI Signal Separation are opened, different signal output interfaces is provided respectively, connect different reception signal terminals, business such as Digital Television and FM broadcasting are provided for the user, interactive television is provided simultaneously, HDTV (High-Definition Television), 3G data service and WIFI etc. use covering.
Claims (1)
1. the cable TV signal mixer of a super wideband, it is characterized in that: comprise and close road port, first port, second port, the 3rd port, the 4th port, five-port, first low pass filter, second low pass filter, high pass filter, first band pass filter, second band pass filter and the 3rd band pass filter, first low pass filter is used for receiving first signal source through first port, high pass filter is used for receiving the secondary signal source through second port, and first low pass filter is connected with described second low pass filter respectively with high pass filter; Described first band pass filter is used for receiving the 3rd signal source through the 3rd port, second band pass filter is used for receiving the 4th signal source through the 4th port, the 3rd band pass filter is used for receiving the 5th signal source through five-port, and second low pass filter, first band pass filter, second band pass filter and the 3rd band pass filter close the described road port that closes of Lu Houyu and be connected with output signal through inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201097294U CN201975490U (en) | 2011-04-14 | 2011-04-14 | Ultra-wide band CATV signal combiner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201097294U CN201975490U (en) | 2011-04-14 | 2011-04-14 | Ultra-wide band CATV signal combiner |
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| CN201975490U true CN201975490U (en) | 2011-09-14 |
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| CN2011201097294U Expired - Fee Related CN201975490U (en) | 2011-04-14 | 2011-04-14 | Ultra-wide band CATV signal combiner |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022605A (en) * | 2012-12-29 | 2013-04-03 | 南京理工大学 | Miniature microwave quintplexer |
| CN103311623A (en) * | 2012-03-15 | 2013-09-18 | 江苏江佳电子股份有限公司 | Medium combiner |
| CN105977589A (en) * | 2016-06-24 | 2016-09-28 | 德清利维通讯科技股份有限公司 | Combiner with function of signal enhancement |
| CN108767383A (en) * | 2018-07-27 | 2018-11-06 | 安徽禄讯电子科技有限公司 | A kind of broadband combiner |
| CN109792260A (en) * | 2016-09-30 | 2019-05-21 | 株式会社村田制作所 | High-frequency model and communication device |
| CN111193086A (en) * | 2019-09-27 | 2020-05-22 | 杭州紫光网络技术有限公司 | Novel low intermodulation ultra wide band five way combiners |
-
2011
- 2011-04-14 CN CN2011201097294U patent/CN201975490U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311623A (en) * | 2012-03-15 | 2013-09-18 | 江苏江佳电子股份有限公司 | Medium combiner |
| CN103022605A (en) * | 2012-12-29 | 2013-04-03 | 南京理工大学 | Miniature microwave quintplexer |
| CN103022605B (en) * | 2012-12-29 | 2014-11-12 | 南京理工大学 | Miniature microwave quintplexer |
| CN105977589A (en) * | 2016-06-24 | 2016-09-28 | 德清利维通讯科技股份有限公司 | Combiner with function of signal enhancement |
| CN109792260A (en) * | 2016-09-30 | 2019-05-21 | 株式会社村田制作所 | High-frequency model and communication device |
| CN109792260B (en) * | 2016-09-30 | 2020-11-13 | 株式会社村田制作所 | High-frequency module and communication device |
| CN108767383A (en) * | 2018-07-27 | 2018-11-06 | 安徽禄讯电子科技有限公司 | A kind of broadband combiner |
| CN111193086A (en) * | 2019-09-27 | 2020-05-22 | 杭州紫光网络技术有限公司 | Novel low intermodulation ultra wide band five way combiners |
| CN111193086B (en) * | 2019-09-27 | 2021-03-16 | 杭州紫光通信技术股份有限公司 | Low intermodulation ultra-wideband five-way combiner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20140414 |