CN201928297U - Three-frequency-range signal mixing/separating device and three-frequency-range signal bidirectional amplifier - Google Patents
Three-frequency-range signal mixing/separating device and three-frequency-range signal bidirectional amplifier Download PDFInfo
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- CN201928297U CN201928297U CN2010206441950U CN201020644195U CN201928297U CN 201928297 U CN201928297 U CN 201928297U CN 2010206441950 U CN2010206441950 U CN 2010206441950U CN 201020644195 U CN201020644195 U CN 201020644195U CN 201928297 U CN201928297 U CN 201928297U
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Abstract
The utility model provides a three-frequency-range signal mixing/separating device and a three-frequency-range signal bidirectional amplifier comprising the same. The three-frequency-range signal mixing/separating device consists of two low-pass filters and two high-pass filters which form a bidirectional signal transmitting device, a common connecting port is arranged at one side end of the bidirectional signal transmitting device while a three-signal connecting port is arranged at the other side end of the bidirectional signal transmitting device, the first high-pass filter is adopted as a high-frequency digital signal transmitting channel, and branches of a first low-pass filter circuit are connected with the second high-pass filter and the second low-pass filter and are respectively adopted as a television signal transmitting channel and a low-frequency digital signal transmitting channel in a connected manner. The three-frequency-range signal bidirectional amplifier consists of two three-frequency-range signal mixing/separating devices and a positive amplifying module. The three-frequency-range signal mixing/separating device and the three-frequency-range signal bidirectional amplifier comprising the same resolve the difficult technical problem that existing wired broadband bidirectional transmission networks cannot transmit high-frequency-range signals.
Description
Technical field
The utility model relates to the signal mixing/separator that uses in the coaxial broadband network system of cable broadband bilateral network EPON+EOC and reach by its two-way amplifier that constitutes, this signal mixing/separator and two-way amplifier realize that TV signal, low-frequency data signal, high-frequency data signal mix and separated transmission.
Background technology
At present, two-way amplifier composition in the cable broadband system mainly is made of two cover bidirectional filters and a forward amplification module, a reverse amplification module, as shown in Figure 1, constitute the TV signal transmission channel through the forward amplification module between the high-pass filtering circuit in the two cover bidirectional filters, low-pass filter circuit in the two cover bidirectional filters constitutes the low-frequency digital signal transmission channel through reverse amplification module, and the operating frequency range of two-way amplifier is 5-30/47-860MHz or 5-65/87-860MHz.Continuous development along with network technology, for example high definition television is soft, the development of hardware, the information more appearance of horn of plenty two-way mutual service system is also imperative, so that the user both can pass through descending programme information TV reception, also can participate in program by the upward signal that returns selects, as telecast demanding, the TV shopping information feedback, video education, e-bank, rich email, multiple interactive information service such as interactive entertainment, in emerging EPON+EOC system, because existing two-way amplifier frequency working range only is 5-860MHz, can't in the EPON+EOC system, bear the transmission that frequency range is the high-frequency digital signal of 950～1500MHz, therefore can not become while transmitting television signals in the EPON+EOC system, low-frequency digital signal, the two-way amplifier of high-frequency digital signal.
Summary of the invention
Goal of the invention of the present utility model is to comprise the three frequency band signals mixing/separators and the three frequency band signals two-way amplifiers that include three frequency band signals mixing/separators of high-frequency digital signal for the cable broadband bilateral network provides a kind of transmission simultaneously.Described three frequency band signals are for comprising TV band signal, low frequency digital frequency band signals and high-frequency digital frequency band signals.
The three frequency band signals mixing/separator technology schemes that the utility model provides, its technology contents is: a kind of three frequency band signals mixing/separators, form a side by two low pass filters and two high pass filters and have a public connecting end mouth, another side has the bidirectional signal transmission apparatus of three signal connection end mouths, the same side ports of first high pass filter and first low-pass filter circuit is connected to the public connecting end mouth, the opposite side port of first high pass filter is the high-frequency digital signal connectivity port, the same side ports of second high pass filter and second low pass filter is connected to the opposite side port of first low pass filter, the opposite side port of second high pass filter is the TV signal connectivity port, the opposite side port of second low pass filter is the low-frequency digital signal connectivity port, wherein the working frequency range of first high pass filter is 950-1500MHz, the working frequency range of first low pass filter is 5-860MHz, the working frequency range of second high pass filter is 47-860MHz or 87-860MHz, and the working frequency range of second low pass filter is 5-30MHz or 5-65MHz.
In above-mentioned overall technical architecture, described high pass filter and low pass filter all adopt the oval filter circuit with precipitous transition band characteristic, and its isolation performance is superior.
The utility model also provides three frequency band signals two-way amplifier technical schemes, its technology contents is: a kind of three frequency band signals two-way amplifiers, form by above-mentioned three frequency band signals mixing/separators and the forward amplification module of two covers, the public connecting end of two covers, three frequency band signals mixing/separators is respectively as this two-way amplifier input external-connected port and output external-connected port, wherein the TV signal connectivity port of a cover three frequency band signals mixings/separators is connected to the TV signal connectivity port of another set of three frequency band signals mixing/separators through forward amplification module input, first overlaps three frequency band signals mixing/separators mixes with another set of three frequency band signals/the high-frequency digital signal connectivity port of separator between, the corresponding connection between the low-frequency digital signal connectivity port.
Three frequency band signals mixing/separators that the utility model provides and three frequency band signals two-way amplifier technical schemes, solved the technical barrier that cable broadband transmitted in both directions network can not the carry high frequency segment signal, this also provides corresponding space for the design of EPON+EOC system simplification integration technology.
Description of drawings
Fig. 1 is the circuit composition frame chart of existing two-way amplifier
Fig. 2 is the circuit composition frame chart of these three frequency band signals two-way amplifiers
Fig. 3 is the circuit composition frame chart of these three frequency band signals mixing/separators.
Embodiment
The disclosed three frequency band signals mixing/separators of the utility model, as shown in Figure 3, it is formed a side by 1,2 and two high pass filters 3,4 of two low pass filters and has the bidirectional signal transmission apparatus that a public connecting end mouth and another side have three signal connection end mouths.Working frequency range be first high pass filter 3 and the working frequency range of 950-1500MHz be 5-860MHz first low pass filter 1 same side ports and connect after be connected in the public connecting end mouth, the opposite side port of first high pass filter 3 is as the high-frequency digital signal connectivity port, working frequency range be second high pass filter 4 and the working frequency range of 47-860MHz or 87-860MHz be 5-30MHz or 5-65MHz second low pass filter 2 same side ports and connect after be connected in the opposite side port of first low pass filter 1, the opposite side port of second high pass filter 4 is as the TV signal connectivity port, and the opposite side port of second low pass filter 4 is as the low-frequency digital signal connectivity port.Described high pass filter and low pass filter preferably adopt the oval filter circuit with precipitous transition band characteristic, and its isolation performance is superior, also can adopt other filter circuit to form.
The utility model also discloses the three frequency band signals two-way amplifiers that include three frequency band signals mixing/separators, and it is formed as shown in Figure 2.Three frequency band signals two-way amplifiers are by three above-mentioned frequency band signals mixing/separators 5 of two covers, 6 and one forward amplification module is formed, the public connecting end of two covers, three frequency band signals mixing/separators is respectively as this two-way amplifier input external-connected port IN and output external-connected port OUT, the TV signal connectivity port of one cover, the three frequency band signals mixing/separators 5 in left side is connected to the TV signal connectivity port that three frequency band signals mixing/separators 6 are overlapped on one of right side through forward amplification module input, between the high-frequency digital signal connectivity port of left side three frequency band signals mixing/separators 5 and right side three frequency band signals mixing/separators 6, the corresponding connection between the low-frequency digital signal connectivity port.
Claims (3)
1. frequency band signals mixing/separator, it is characterized in that it forms a side by two low pass filters and two high pass filters and have a public connecting end mouth, another side has the bidirectional signal transmission apparatus of three signal connection end mouths, the same side ports of first high pass filter and first low-pass filter circuit is connected to the public connecting end mouth, the opposite side port of first high pass filter is the high-frequency digital signal connectivity port, the same side ports of second high pass filter and second low pass filter is connected to the opposite side port of first low pass filter, the opposite side port of second high pass filter is the TV signal connectivity port, the opposite side port of second low pass filter is the low-frequency digital signal connectivity port, wherein the working frequency range of first high pass filter is 950-1500MHz, the working frequency range of first low pass filter is 5-860MHz, the working frequency range of second high pass filter is 47-860MHz or 87-860MHz, and the working frequency range of second low pass filter is 5-30MHz or 5-65MHz.
2. according to three frequency band signals mixing/separators of claim 1, it is characterized in that high pass filter, low pass filter all adopt the oval filter circuit with precipitous transition band characteristic.
3. three frequency band signals two-way amplifiers that the three frequency band signals mixing/separators that include claim 1 constitute, it is characterized in that it by two the cover above-mentioned three frequency band signals mixing/separators and a forward amplification module form, the public connecting end of two covers, three frequency band signals mixing/separators is respectively as this two-way amplifier input external-connected port and output external-connected port, wherein the TV signal connectivity port of a cover three frequency band signals mixings/separators is connected to the TV signal connectivity port of another set of three frequency band signals mixing/separators through forward amplification module input, first overlaps three frequency band signals mixing/separators mixes with another set of three frequency band signals/the high-frequency digital signal connectivity port of separator between, the corresponding connection between the low-frequency digital signal connectivity port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206441950U CN201928297U (en) | 2010-12-01 | 2010-12-01 | Three-frequency-range signal mixing/separating device and three-frequency-range signal bidirectional amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206441950U CN201928297U (en) | 2010-12-01 | 2010-12-01 | Three-frequency-range signal mixing/separating device and three-frequency-range signal bidirectional amplifier |
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| Publication Number | Publication Date |
|---|---|
| CN201928297U true CN201928297U (en) | 2011-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206441950U Expired - Fee Related CN201928297U (en) | 2010-12-01 | 2010-12-01 | Three-frequency-range signal mixing/separating device and three-frequency-range signal bidirectional amplifier |
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| Country | Link |
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| CN (1) | CN201928297U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105681721A (en) * | 2014-11-21 | 2016-06-15 | 中兴通讯股份有限公司 | Signal hybrid output method and device and control equipment |
| CN115118656A (en) * | 2021-03-23 | 2022-09-27 | 嘉雨思科技股份有限公司 | Routing integrated circuit elements |
-
2010
- 2010-12-01 CN CN2010206441950U patent/CN201928297U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105681721A (en) * | 2014-11-21 | 2016-06-15 | 中兴通讯股份有限公司 | Signal hybrid output method and device and control equipment |
| CN115118656A (en) * | 2021-03-23 | 2022-09-27 | 嘉雨思科技股份有限公司 | Routing integrated circuit elements |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20151201 |
|
| EXPY | Termination of patent right or utility model |