CN106878641B - A kind of high-power universal transmitter realization device of Whole frequency band multichannel and method - Google Patents
A kind of high-power universal transmitter realization device of Whole frequency band multichannel and method Download PDFInfo
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- CN106878641B CN106878641B CN201710081860.6A CN201710081860A CN106878641B CN 106878641 B CN106878641 B CN 106878641B CN 201710081860 A CN201710081860 A CN 201710081860A CN 106878641 B CN106878641 B CN 106878641B
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- radiofrequency signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/148—Video amplifiers
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
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Abstract
The invention discloses a kind of high-power universal transmitter realization device of Whole frequency band multichannel and method, device includes the optional small-power radiofrequency signal synthesis module of multichannel, and for receiving the multipath signal source from multiple excitation modules, small-power radiofrequency signal is exported after synthesis；The small signal of multichannel carries out point defeated, the generation road a N output signal with phase partitioning module, for receiving small-power radiofrequency signal, and to small-power radiofrequency signal, for the use of High-power amplifier module group；High-power amplifier module group, including N number of High-power amplifier module, each High-power amplifier module receives in the output signal of the road N all the way, and carries out three-level enhanced processing, generates high power RF signal；And high-power bread Anneta module group, including N number of high-power bread Anneta module, it is corresponded with N number of High-power amplifier module, for receiving high power RF signal, and emits covering.The present invention reduces equipment investments, increase signal cover, enhance equipment operation stability.
Description
Technical field
The present invention relates to TV band signal transmitter more particularly to the multichannels of TV full frequency band 470MHz-792MHz
High-power universal transmitter implementation method and device.
Background technique
Existing general television band transmitter (as shown in Figure 1), by taking simulation as an example, single portion can only emit a 8MHz's
Analog channel, power is mostly 5KW, maximum to be no more than 10KW, high-power to reach 30KW using IOT amplifier tube, still
IOT amplifier tube transmitter overall volume is larger, operating voltage superelevation, water-cooling system are complicated.Traditional transmitter is if it is intended to realize
Multichannel shares antenna feeder transmitting, needs to increase multiplexer, but multiplexer itself is used as a powerful synthesizer, strictly
By frequency band and power limit.
In addition, the final stage amplification of transmitter itself is not only limited by power and bandwidth, but also single power amplifier unit event
Barrier will lead to power combing imbalance, and local pyrexia is larger, and serious imbalance may result in absorbing load sparking, and machine is automatic
Drop power is broken.So due to many systems in terms of the high-power synthesis of the final stage of transmitter itself and multiplexer synthesis
About, a traditional transmitter, by taking 16 power amplifier units as an example, most bandwidth can only sit on 20MHz, that is, a transmitter is most
3 can only be mostly cured as and face frequency point use, and the increased multiplexer of multichannel transmitting is expensive, occupies computer room space, is wide
The TV programme covering of electricity brings many restrictions.
Summary of the invention
In view of the above-mentioned problems of the prior art, the present invention provides a kind of high-power universal transmitter of Whole frequency band multichannel
Realization device and method, the goal is to provide a kind of transmitter for TV full frequency band multichannel, the items of the transmitter
Performance and parameter and any of transmission of television technology co-existence, and simultaneously again can be in U frequency range (470MHz-792MHz) band
Multiple channels emit simultaneously in width, the band tolerance caused by the most important high-power synthesis that can break through each link of existing transmitter
System and power limit accomplish high-power, full bandwidth work.
The present invention solves technical problem and adopts the following technical scheme that
A kind of high-power universal transmitter realization device of Whole frequency band multichannel, wherein including the optional small-power radio frequency of multichannel
The small signal of signal synthesizing module, multichannel is with phase partitioning module, High-power amplifier module group and high-power bread Anneta module group:
The optional small-power radiofrequency signal synthesis module of multichannel, with the small signal of the multichannel with phase partitioning module couples,
For receiving the multipath signal source from multiple excitation modules, small-power radiofrequency signal is exported after synthesis；
The small signal of multichannel is with phase partitioning module, with the optional small-power radiofrequency signal synthesis module of multichannel and the big function
The coupling of rate power amplifier module group carries out point defeated a, production for receiving the small-power radiofrequency signal, and to the small-power radiofrequency signal
The raw road N output signal, for High-power amplifier module group use；
The High-power amplifier module group, with the small signal of the multichannel with phase partitioning module and the high-power bread antenna
The coupling of module group, including N number of High-power amplifier module, each High-power amplifier module receive one in the output signal of the road N
Road, and three-level enhanced processing is carried out, generate high power RF signal；And
The high-power bread Anneta module group is coupled with High-power amplifier module group, including N number of high-power bread antenna
Module corresponds with N number of High-power amplifier module, for receiving the high power RF signal, and emits covering；
The N=16.
Optionally, pass through 7/16 standard between the High-power amplifier module group and the high-power bread Anneta module group
The connection of cable feeder line.
Optionally, the multipath signal source of the multiple excitation module includes but is not limited to that the A/V of analog driver output is penetrated
Frequency signal or digital video/audio TS data flow modulation radiofrequency signal.
Optionally, the optional small-power radiofrequency signal synthesis module control of the multichannel needs to input the information source number of synthesis.
A kind of high-power universal transmitter implementation method of Whole frequency band multichannel, wherein include:
The optional small-power radiofrequency signal synthesis module of multichannel receives the multipath signal source from multiple excitation modules, synthesis
Small-power radiofrequency signal is exported afterwards；
The small signal of multichannel receives the small-power radiofrequency signal with phase partitioning module, and to the small-power radiofrequency signal
Point defeated, the generation road a N output signal is carried out, for the use of High-power amplifier module group；
The High-power amplifier module group, including N number of High-power amplifier module, described in each High-power amplifier module receives
In the output signal of the road N all the way, and three-level enhanced processing is carried out, generates high power RF signal；And
High-power bread Anneta module group, including N number of high-power bread Anneta module, with N number of High-power amplifier mould
Block corresponds, and for receiving the high power RF signal, and emits covering；
The N=16.
Optionally, pass through 7/16 standard between the High-power amplifier module group and the high-power bread Anneta module group
The connection of cable feeder line.
Optionally, the multipath signal source of the multiple excitation module includes but is not limited to that the A/V of analog driver output is penetrated
Frequency signal or digital video/audio TS data flow modulation radiofrequency signal.
Optionally, the optional small-power radiofrequency signal synthesis module control of the multichannel needs to input the information source number of synthesis.
The invention has the following beneficial effects:
The present invention is directed to realize the synthesis of the multichannel in front end signal source and transmission, the high-power amplification of middle section, Yi Jimo
The thin feeder cable of multichannel of grade directly transports the transmitting antenna surface packing of RF signal values transmitting tower top.Thoroughly get rid of single portion's hair
Penetrate the high-power synthesis of machine itself, the high-power synthesis of the shared antenna feeder of multi-section transmitter, and the high-power RF in tower top
The end power distribution of signal.The present invention is preferably utilized frequency resource, reduces equipment investment, increase signal cover,
Enhance equipment operation stability.
Detailed description of the invention
Fig. 1 is a kind of television transmitter schematic device in the prior art；
Fig. 2 is the embodiment schematic diagram of the high-power universal transmitter realization device of Whole frequency band multichannel of the present invention；
Fig. 3 is the embodiment flow chart of the high-power universal transmitter implementation method of Whole frequency band multichannel of the present invention.
Specific embodiment
Technical solution of the present invention is further elaborated below with reference to examples and drawings.
Embodiment 1
Present embodiments provide a kind of high-power universal transmitter realization device of Whole frequency band multichannel.It is shown in Figure 2 to be
The specific embodiment of the high-power universal transmitter realization device of Whole frequency band multichannel in the application, including the optional small-power of multichannel are penetrated
The small signal of frequency signal synthesizing module 201, multichannel is the same as phase partitioning module 202, High-power amplifier module group 203 and high-power bread day
Wire module group 204, in which:
The optional small-power radiofrequency signal synthesis module 201 of multichannel is coupled with phase partitioning module 202 with the small signal of multichannel, is used
In receiving the multipath signal source from multiple excitation modules, small-power radiofrequency signal is exported after synthesis；
The small signal of multichannel is with phase partitioning module 202, with the optional small-power radiofrequency signal synthesis module 201 of multichannel and high-power
Power amplifier module group 203 couples, and for receiving small-power radiofrequency signal, and carries out to small-power radiofrequency signal point defeated, the generation road N is defeated
Signal out, for the use of High-power amplifier module group 203；
High-power amplifier module group 203, with the small signal of multichannel with phase partitioning module 202 and high-power bread Anneta module group
204 couplings, including N number of High-power amplifier module, each High-power amplifier module are received in the output signal of the road N all the way, are gone forward side by side
Row three-level enhanced processing generates high power RF signal；And
High-power bread Anneta module group 204 is coupled with High-power amplifier module group 203, including N number of high-power bread day
Wire module corresponds with N number of High-power amplifier module, for receiving high power RF signal, and emits covering.
Wherein, pass through 7/16 standard cable between High-power amplifier module group 203 and high-power bread Anneta module group 204
Feeder line connection.
Wherein, the multipath signal source of multiple excitation modules includes but is not limited to the A/V radiofrequency signal of analog driver output
Perhaps multi-channel analog or digital signal input can be used in digital video/audio TS data flow modulation radiofrequency signal present invention,
And support remotely located and monitoring, important radiofrequency signal synthesis, distribution and amplifying element all have monitoring, acquisition and setting function
Can, by RJ45 network interface connection remote control equipment, can remotely be monitored and the setting and adjusting of running parameter.
Wherein, the optional control of small-power radiofrequency signal synthesis module 201 of multichannel needs to input the information source number of synthesis, this hair
It is bright by taking 4 road signals as an example, 2 tunnel analog signals and 2 railway digital signals.The scalability access signal of device can be opened by panel operation
With corresponding input interface, for example, the device that the present invention designs can access most 8 tunnel synthesis, and device liquid crystal display
Panel can monitor the state of display input signal, and have breaking red alarm function.The output end of the device equally has
Complex RF signal sampling detects function for monitoring, so that the complex RF signal quality of output obtains optimum state.
Wherein, N=16, device realize 16 tunnel power distributions, carry out phase, level and frequency to 16 tunnel output signals and examine
It surveys, and output abnormality phenomenon can be alerted, and display leads to the abnormality of one or more output end of output abnormality,
Ensure that 16 tunnel output signal electrical specifications are identical, guarantees that subsequent high-power amplification is stable, efficient.
Wherein, for further promoted veneer power amplifier overall power, and guarantee High-power amplifier module working frequency range compared with
Width, the present invention uses the broadband amplifier tube BLF888B of Philip production in veneer power amplifier module, due to not considering rear stage
Power combing, therefore veneer power can accomplish 2.5KW, the present invention configures 16 pieces of power amplifier modules, and theoretical power (horse-power) is up to 35KW hereinafter, remote
Super existing mainstream list portion transmitter power.
Wherein, high-power bread Anneta module is using maximum veneer power capacity up to the high-power full frequency band of 3KW or more
Bread Anneta module, for the present invention using the antenna system at four layers of four sides, veneer directly passes through 7/16 feed line connection, whole
Machine power largely improves limitation of the traditional transmitter to power and bandwidth, has really done high-power full range up to 30KW
Band transmitting plays the electrical enlarging function of core amplification component to greatest extent, improves the whole utilization of whole system.
Embodiment 2
Present embodiments provide a kind of high-power universal transmitter implementation method of Whole frequency band multichannel.It is shown in Figure 3 to be
The specific embodiment of the high-power universal transmitter implementation method of Whole frequency band multichannel in the application, Whole frequency band multifrequency in the present embodiment
The high-power universal transmitter implementation method in road includes the following steps:
Step 301: the optional small-power radiofrequency signal synthesis module 201 of multichannel receives the multichannel from multiple excitation modules
Signal source exports small-power radiofrequency signal after synthesis；
Step 302: the small signal of multichannel receives small-power radiofrequency signal with phase partitioning module 202, and believes small-power radio frequency
It number carries out point defeated, the road a N output signal is generated, for the use of High-power amplifier module group 203；
Step 303: High-power amplifier module group 203, including N number of High-power amplifier module, each High-power amplifier module
It receives in the output signal of the road N all the way, and carries out three-level enhanced processing, generate high power RF signal；And
Step 304: high-power bread Anneta module group 204, including N number of high-power bread Anneta module, for receiving height
Power radio-frequency signal, and emit covering.
Wherein, pass through 7/16 standard cable between High-power amplifier module group 203 and high-power bread Anneta module group 204
Feeder line connection.
Wherein, the multipath signal source of multiple excitation modules includes but is not limited to the A/V radiofrequency signal of analog driver output
Or digital video/audio TS data flow modulation radiofrequency signal.
Wherein, the optional control of small-power radiofrequency signal synthesis module 201 of multichannel needs to input the information source number of synthesis.
Wherein, N=16.
Other application is similar to embodiment 1, does not repeat separately.
The sequencing of above embodiments is not only for ease of description, represent the advantages or disadvantages of the embodiments.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. a kind of high-power universal transmitter realization device of Whole frequency band multichannel, which is characterized in that including the optional small-power of multichannel
The small signal of radiofrequency signal synthesis module, multichannel is the same as phase partitioning module, High-power amplifier module group and high-power bread Anneta module
Group, in which:
The optional small-power radiofrequency signal synthesis module of multichannel is used for the small signal of the multichannel with phase partitioning module couples
The multipath signal source from multiple excitation modules is received, small-power radiofrequency signal is exported after synthesis；
The small signal of multichannel is with phase partitioning module, with the optional small-power radiofrequency signal synthesis module of multichannel and the high-power function
The coupling of amplification module group carries out point defeated, a generation N for receiving the small-power radiofrequency signal, and to the small-power radiofrequency signal
Road output signal, for High-power amplifier module group use；
The High-power amplifier module group, with the small signal of the multichannel with phase partitioning module and the high-power bread Anneta module
Group coupling, including N number of High-power amplifier module, each High-power amplifier module receive in the output signal of the road N all the way, and
Three-level enhanced processing is carried out, high power RF signal is generated；And
The high-power bread Anneta module group is coupled with High-power amplifier module group, including N number of high-power bread antenna mould
Block corresponds with N number of High-power amplifier module, for receiving the high power RF signal, and emits covering；
The N=16.
2. the high-power universal transmitter realization device of Whole frequency band multichannel according to claim 1, which is characterized in that described
It is connected between High-power amplifier module group and the high-power bread Anneta module group by 7/16 standard cable feeder line.
3. the high-power universal transmitter realization device of Whole frequency band multichannel according to claim 1, which is characterized in that described
The multipath signal source of multiple excitation modules includes but is not limited to, and the A/V radiofrequency signal or digital video of analog driver output/
The radiofrequency signal of audio TS data flow modulation.
4. the high-power universal transmitter realization device of Whole frequency band multichannel according to claim 1, which is characterized in that described
The optional small-power radiofrequency signal synthesis module control of multichannel needs to input the information source number of synthesis.
5. a kind of high-power universal transmitter implementation method of Whole frequency band multichannel characterized by comprising
The optional small-power radiofrequency signal synthesis module of multichannel receives the multipath signal source from multiple excitation modules, defeated after synthesis
Small-power radiofrequency signal out；
The small signal of multichannel receives the small-power radiofrequency signal with phase partitioning module, and carries out to the small-power radiofrequency signal
Divide defeated, the generation road N output signal, for the use of High-power amplifier module group；
The High-power amplifier module group, including N number of High-power amplifier module, each High-power amplifier module receive the road N
In output signal all the way, and three-level enhanced processing is carried out, generates high power RF signal；And
High-power bread Anneta module group, including N number of high-power bread Anneta module, with N number of High-power amplifier module one
One is corresponding, for receiving the high power RF signal, and emits covering；
The N=16.
6. the high-power universal transmitter implementation method of Whole frequency band multichannel according to claim 5, which is characterized in that described
It is connected between High-power amplifier module group and the high-power bread Anneta module group by 7/16 standard cable feeder line.
7. the high-power universal transmitter implementation method of Whole frequency band multichannel according to claim 5, which is characterized in that described
The multipath signal source of multiple excitation modules includes but is not limited to, and the A/V radiofrequency signal or digital video of analog driver output/
The radiofrequency signal of audio TS data flow modulation.
8. the high-power universal transmitter implementation method of Whole frequency band multichannel according to claim 5, which is characterized in that described
The optional small-power radiofrequency signal synthesis module control of multichannel needs to input the information source number of synthesis.
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| CN201710081860.6A CN106878641B (en) | 2017-02-15 | 2017-02-15 | A kind of high-power universal transmitter realization device of Whole frequency band multichannel and method |
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| CN106878641A CN106878641A (en) | 2017-06-20 |
| CN106878641B true CN106878641B (en) | 2019-06-21 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108649973B (en) * | 2018-03-14 | 2020-01-14 | 湖北楚航电子科技有限公司 | Multi-channel data transmission transmitter and combined data transmission transmitting device |
| CN109687926A (en) * | 2018-12-04 | 2019-04-26 | 安徽省广播电视设备器材有限责任公司 | A kind of broadcasting engineering transmitting antenna frequency modulation system |
| CN109981064B (en) * | 2019-04-02 | 2023-05-02 | 北京环境特性研究所 | Solid-state power amplifier, application of solid-state power amplifier and method for measuring by using solid-state power amplifier |
| CN110691209B (en) * | 2019-10-10 | 2022-02-01 | 成都新光微波工程有限责任公司 | 5G broadcast transmitting system based on distributed power amplifier |
| CN114567385B (en) * | 2022-01-12 | 2023-05-09 | 中国电子科技集团公司第十研究所 | Integrated high-power signal source |
| CN114994617B (en) * | 2022-05-30 | 2023-07-25 | 中国科学院国家空间科学中心 | Double-frequency all-solid-state transmitter for atmospheric radar |
| CN115549726B (en) * | 2022-09-02 | 2024-05-24 | 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） | Floating antenna multi-band communication signal shared line transmission system |
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| CN1989706A (en) * | 2005-04-28 | 2007-06-27 | 松下电器产业株式会社 | Digital broadcasting receiver |
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