CN202696635U - Mixed distribution device for radio frequency signal and CATV signal - Google Patents
Mixed distribution device for radio frequency signal and CATV signal Download PDFInfo
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- CN202696635U CN202696635U CN 201220328476 CN201220328476U CN202696635U CN 202696635 U CN202696635 U CN 202696635U CN 201220328476 CN201220328476 CN 201220328476 CN 201220328476 U CN201220328476 U CN 201220328476U CN 202696635 U CN202696635 U CN 202696635U
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Abstract
The utility model discloses a mixed distribution device for a radio frequency signal and a CATV (Community Antenna Television) signal. The mixed distribution device for the radio frequency and the CATV signal comprises a plurality of input terminals, at least one microstrip distributor, a CATV low-frequency distributor and a plurality of micro-strip mixers, wherein one of the input terminals is a CATV signal input terminal; other input terminals are radio frequency signal input terminals; the CATV signal input terminal is coupled with a CATV low-frequency distributor; and the radio frequency signal input terminals are coupled with corresponding micro-strip distributors. According to the mixed distribution device disclosed by the utility model, a traditional subsequent mixing-separating mixed distribution mode is changed and a mode of subsequently mixing and separating multi-channel signals is adopted; and in addition, an internal circuit of the mixer is reformed and a micro-strip wire forms an electrical inductor, and thus signal transmission of a Cable and Wi-Fi (Wireless Fidelity) system at low loss and high isolation is realized.
Description
Technical field
The utility model relates to signal transport communication field, more specifically, relates to the devices and methods therefor of the mixed allocation of a kind of MIMO (multiple-input and multiple-output (Multiple-Input Multiple-Out-put)) radiofrequency signal and CATV signal.
Background technology
MIMO represents multiple-input and multiple-output.In the 4th third-generation mobile communication technical standard, be widely adopted IEEE802.16e (Wimax) for example, Long Term Evolution (LTE).In new generation of wireless local area network (LAN) (WLAN) standard, be generally used for IEEE802.11n, but also can be used for other 802.11 technology.MIMO is known as space diversity sometimes, because it uses multiple spatial channel to transmit and receive data, could dispose MIMO when only having website (mobile device) or access point (AP) to support MIMO.
Cable Wi-Fi is the radiofrequency signal of Wi-Fi by existing CATV cable television system, mixer and splitter low-loss ground by special use, height arrives different coaxial cable the insides from CATV signal mixed allocation isolator, be transferred to low-loss in user's the room, realize the green in the room, high-quality WLAN signal covers, and reliable and real operable fast wireless network are provided, Cable Wi-Fi system so that the MIMO technology of 802.11n wireless network utilize with succeeding.
By the retrieval to prior art, technology that radiofrequency signal and CATV signal are mixed and divide equally has appearred, and for example Chinese publication application number is 200820057754, and the utility model name is called " based on the CATV integrated access system of Wi-Fi technology "; China's publication application number 201020695164, the utility model name is called " broadband network system of a kind of hyperfrequency " etc., the basic structure of the circuit of above-mentioned publication radiofrequency signal and CATV signal as shown in Figure 1, AP with the broadband internet interface is installed in the light current well, after closing the CATV signal mixing after distributor amplifies the CATV amplifier, be divided into again several paths, be transferred in the resident family by original coaxial cable again, what transmit in the cable from branch's mixer to resident family is the radiofrequency signal of 5MHz-1GHz and 2.4-2.5GHz, in this section transmission channel, if have the parts that the parts such as the distributor of low-frequency range or amplifier just need to be replaced by wideband 5MHz-2.5GHz, otherwise the Wi-Fi signal just produces very seriously decay.When broadband signal has arrived in the resident family, in general most family has parlor and several bedroom, the CATV distributor of originally necessarily being furnished with low frequency, in the engineering of transforming, must be replaced with the 5MHz-2.5GHz wide-frequency distributor to the CATV distributor of low frequency, last step is that the panel of inserting television set on resident's wall is replaced with the C﹠amp that inside has specialized circuitry; Wi-Fi Termina l panel, the CATV signal just can be separated effectively with the Wi-Fi signal like this, and is distributed to equably each room.The synthetic distributor schematic diagram of prior art as shown in Figure 2, schematic diagram by Fig. 2 can be found out, what this scheme adopted is first Wi-Fi and CATV signal to be closed the road, then separate with one minute eight wideband splitter, close first the road and the prior art adopts, and then carry out shunt with the wideband splitter.Wide-frequency distributor will be done decay get off and will be difficult to from 5M to 2.5G.Although mixer is less than 1DB, eight distributor Insertion Loss are greater than more than the 15DB, and flatness is difficult to meet the demands, and the workload of producing debugging is also much larger.The wideband splitter of mixer and one minute eight is owing to adopting and be fit to realizing such as lumped parameter devices such as magnet rings of low-frequency channel, cause for the Wi-Fi signal that works in 2.4GHZ, decay is just large in the extreme, product performance index just is difficult to satisfy instructions for use, and Wi-Fi signal and CATV signal mutual isolation are also poor.
Cable﹠amp; The Wi-Fi system is the main problem that exists at present: for existing catv network, the branching ratio of coaxial cable is more, the long Wi-Fi signal attenuation to 2.4GHZ of cable is larger, as client cellphone subscriber particularly, picture iPHONE cellphone subscriber, in design, reach the impact on health owing to considering the life-span of battery, the Wi-Fi signal is far smaller than the transmission power level of AP, actual emission power is less than 1/10 of AP, when the Wi-Fi signal of mobile phone emission passes back to AP through catv network, signal has been attenuated very faintly, substantially be submerged in the noise the inside, because wireless network is when receiving and dispatching the transmission of data, the speed of data is directly proportional with the signal to noise ratio of transmitting-receiving two-end and is listed as relation, is difficult to realize like this high speed communication under the condition of low signal-to-noise ratio.Present Cable﹠amp so improve simultaneously the received signal to noise ratio of AP and client; The subject matter that the Wi-Fi system need to solve.The problem of second needs solution is: the problem that Wi-Fi signal and CATV signal are isolated mutually.
Cable﹠amp as from the foregoing; The construction of Wi-Fi system, what at first need to solve is the low-loss of Wi-Fi signal, height is incorporated into the coaxial cable the inside to CATV signal and Wi-Fi isolator.
The utility model content
For solving the defects of prior art, the utility model has designed the mixed allocation devices and methods therefor of a kind of radiofrequency signal based on MIMO and the high isolation of CATV signal low-loss.This technology is on the one hand by changing traditional mixed allocation pattern of dividing afterwards of closing first, employing divides first the mode of closing afterwards to multiple signals, transform by the internal circuit to mixer on the other hand, consist of inductance with microstrip line, thus good realization Cable﹠amp; The signal transmission of the low-loss of Wi-Fi system, high isolation.
According to an aspect of the present utility model, the mixed allocation device of a kind of radiofrequency signal and CATV signal is provided, this mixed allocation device comprises a plurality of inputs, at least one little Tape dispensers, a CATV low frequency distributor and a plurality of little band mixer; Wherein in a plurality of inputs is the CATV signal input part, and remaining is radio-frequency (RF) signal input end, the coupling of described CATV signal input part and described CATV low frequency distributor, and described radio-frequency (RF) signal input end is coupled with corresponding little Tape dispensers; The quantity N of the shunting sign that at least one little Tape dispensers is total equals the quantity N of CATV low frequency distributor shunting sign, and the quantity of described shunting sign equals the quantity N of mixer; And the quantity N of described shunting sign satisfies following formula: N=2
n(n=2,3,4 ...).The signal of coming in from each radio-frequency (RF) signal input end, by corresponding little Tape dispensers, distribute first and be transferred to afterwards a corresponding little input port with mixer, be transferred to corresponding little another one input port with mixer after the signal that the CATV signal input part is come in also distributes by CATV low frequency distributor, export after with mixer the radiofrequency signal after distributing and CATV signal being closed the road by little at last.
Wherein, described little Tape dispensers can be divided equally the radiofrequency signal that enters or be distributed into by a certain percentage N road signal; Described CATV low frequency distributor can be divided equally the CATV signal or be distributed into by a certain percentage N road signal.
Wherein, described a plurality of input is three inputs; Described at least one little Tape dispensers is two little four distributors of being with; Described CATV low frequency distributor is CATV low frequency eight distributors; Described little band mixer is eight little band mixers.
Wherein said a plurality of input is three inputs; Described at least one little Tape dispensers is two little two distributors of being with; Described CATV low frequency distributor is CATV low frequency four distributors; Described a plurality of little band mixer is four little band mixers.
Wherein said a plurality of input is five inputs; Described at least one little Tape dispensers is four little two distributors of being with; Described CATV low frequency distributor is CATV low frequency eight distributors; Described a plurality of little band mixer is eight little band mixers.
Wherein said a plurality of input is two inputs; Described at least one little Tape dispensers is little two distributors of being with; Described CATV low frequency distributor is CATV low frequency four distributors; Described a plurality of little band mixer is four little band mixers.
Wherein said little the first series via of incoming radio frequency signal and the second series via of access CATV signal of comprising with mixer; Wherein the first series via comprises the electric capacity of at least two series connection, each electric capacity along receiving side signal to positive terminal connect one group of series circuit, this series circuit is made of microstrip line and electric capacity, the positive terminal of the electric capacity in one end of this series circuit and the corresponding series via is connected other end ground connection; Three groups of parallel circuitss are connected respectively in this second series via, and wherein each parallel circuits consists of by electric capacity is in parallel with microstrip line, and the two ends of first group of parallel circuits connect respectively an end of capacitor C 4, capacitor C 5, the other end ground connection of capacitor C 4, capacitor C 5; Second group of parallel circuits along receiving side signal to positive terminal connect an end of capacitor C 6, the other end ground connection of capacitor C 6; The 3rd group of parallel circuits along receiving side signal to negative pole end connect capacitor C 7, the other end ground connection of capacitor C 7; Microstrip line M1, M5 connect respectively for the leading portion of the series circuit that forms at three groups of parallel circuitss simultaneously, and rear end.
Wherein, the electric capacity of described at least two series connection is 4.Wherein said electric capacity is patch capacitor.
Wherein, described mixed allocation device also comprises power amplifier, and described power amplifier is arranged on before little at least one radiofrequency signal input port with mixer.
Described device further comprises and described a plurality of input, at least one little Tape dispensers and low frequency distributor between little band mixer of reverse use, be used for receiving 5M to the mixed signal of CATV and the Wi-Fi of 2.5G, from described mixed signal, to isolate CATV signal and Wi-Fi signal.
According on the other hand of the present utility model, the method of a kind of radiofrequency signal and CATV signal mixed allocation has been proposed, the method adopts above-mentioned radiofrequency signal and CATV signal mixed allocation device, the method may further comprise the steps: (1) at first passes through little Tape dispensers with radiofrequency signal, be transferred to a corresponding little input port with mixer after distributing, simultaneously, after being distributed by CATV low frequency distributor, the CATV signal is transferred to corresponding little another one input port with mixer; (2) however export after with mixer the radiofrequency signal after distributing and CATV signal being closed the road by little.
The utility model divides first the method for closing afterwards by adopting to multiple signals, and the internal circuit of mixer is transformed, and consists of inductance with microstrip line, has realized Cable﹠amp; The signal transmission of the low-loss of Wi-Fi system, high isolation.
Description of drawings
Fig. 1 is the basic structure of the circuit of radiofrequency signal and CATV signal in the prior art;
Fig. 2 is the synthetic distributor schematic diagram of prior art in the prior art;
Fig. 3 is according to the radiofrequency signal of the utility model the first embodiment and CATV signal mixed allocation device;
Fig. 4 is according to the radiofrequency signal of the utility model the second embodiment and CATV signal mixed allocation device;
Fig. 5 is according to the radiofrequency signal of the utility model the 3rd embodiment and CATV signal mixed allocation device;
Fig. 6 is according to the radiofrequency signal of the utility model the 4th embodiment and CATV signal mixed allocation device;
Fig. 7 is little circuit theory diagrams with mixer of the present utility model;
Fig. 8 is the circuit theory diagrams of CATV four distributors (that is, splitter or splitter);
Fig. 9 is the circuit theory diagrams of Wi-Fi four distributors (that is, splitter or splitter);
Figure 10 is after CATV and Wi-Fi mixed signal at first occurring, with little with mixer anti-the circuit theory diagrams that use as splitter.
As shown in the figure, in order clearly to realize the structure of embodiment of the present utility model, specific structure and device have been marked in the drawings, but this only needs for signal, be not that intention is limited to the utility model in this ad hoc structure, device and the environment, according to concrete needs, those of ordinary skill in the art can adjust these devices and environment or revise, and the adjustment of carrying out or modification still are included in the scope of accompanying claim.
Embodiment
Below in conjunction with the drawings and specific embodiments a kind of radiofrequency signal and the high mixed allocation of isolating of CATV signal low-loss that the utility model provides is described in detail.What simultaneously here do to illustrate is, more detailed in order to make embodiment, the following examples be the best, preferred embodiment, also can adopt other alternative and implements for some known technology those skilled in the art; And accompanying drawing part only is in order to describe more specifically embodiment, and is not intended to the utility model is carried out concrete restriction.
In general embodiment of the present utility model, this radiofrequency signal and CATV signal mixed allocation device comprise a plurality of inputs, at least one little Tape dispensers, a CATV low frequency distributor and a plurality of little band mixer; Wherein in a plurality of inputs is the CATV signal input part, and remaining is radio-frequency (RF) signal input end, the coupling of described CATV signal input part and described CATV low frequency distributor, and described radio-frequency (RF) signal input end is coupled with corresponding described little Tape dispensers; The quantity N of the shunting sign that at least one little Tape dispensers is total equals the quantity N of CATV low frequency distributor shunting sign, and the quantity of described shunting sign equals the quantity N of mixer; And the quantity N of described shunting sign satisfies following formula: N=2
n(n=2,3,4 ...).The signal of wherein coming in from each radio-frequency (RF) signal input end, by corresponding described little Tape dispensers, distribute first and be transferred to afterwards a corresponding little input port with mixer, be transferred to corresponding little another one input port with mixer after the signal that the CATV signal input part is come in also distributes by CATV low frequency distributor, littlely export after with mixer the radiofrequency signal after distributing and CATV signal being closed the road by described at last.
[embodiment 1]
The radiofrequency signal of the utility model the first preferred embodiment and CATV signal mixed allocation device are as shown in Figure 3.This mixed allocation device comprises three inputs, two little four distributors, CATV low frequency eight distributors and eight little band mixers be with.Two little is the distributors that are made of little band that work in 2.4GHZ-2.5GHZ with four distributors, and the difference of itself and conventional distributor is to adopt microstrip line to consist of inductance, as shown in Figure 9; The distributor that the magnet ring of using in CATV low frequency eight distributors and the traditional C ATV system consists of is consistent.The little of Wi-Fi and CATV can adopt the microstrip circuit of computer-aided design to consist of with mixer.Describedly littlely the radiofrequency signal that enters can be divided equally or distribute by a certain percentage with four distributors; Described CATV low frequency eight distributors can be divided equally the CATV signal or distribute by a certain percentage.
Wherein first, second input is that radiofrequency signal (Wi-Fi) input, the 3rd input are the CATV signal input part.First, second little four distributors and first, second input be with is coupled respectively, thus received RF signal, and radiofrequency signal is divided into eight the tunnel altogether.Simultaneously, CATV low frequency eight distributors and the coupling of the 3rd input, thus receive the CATV signal, and the CATV signal is divided into eight the tunnel.In use, its operation principle is: the signal that each is come in from radio-frequency (RF) signal input end, by corresponding little four distributors of being with, carry out being transferred to a corresponding little input port with mixer after low-loss ground distributes, the signal that the CATV input is come in is also undertaken being transferred to corresponding little another one input port with mixer after low-loss ground distributes by CATV low frequency eight distributors, radiofrequency signal and CATV signal after distributing are carried out exporting after the low-loss height closes the road isolator with mixer by little at last, such benefit is: the wideband splitter of relative 5MHZ-2.5GHZ, Wi-Fi and CATV signal shunt are (namely, distributor or splitter) frequency range relatively much narrow, the performance index of design just are easy to reach, and production cost also declines to a great extent.Wherein, alternatively, described mixed allocation device can also comprise power amplifier (not shown), and described power amplifier is arranged on before little at least one radiofrequency signal input port with mixer.That is, radiofrequency signal (Wi-Fi) is carried out be transferred to before the corresponding little input port with mixer after low-loss ground distributes at corresponding little four props of being with, add power amplifier, to improve the receiving sensitivity of wi-fi signal.
[embodiment 2]
The radiofrequency signal of the utility model the second preferred embodiment and CATV signal mixed allocation device 1 are as shown in Figure 4.This mixed allocation device comprises three inputs, two little two distributors, CATV low frequency four distributors and four little band mixers be with.Two little is the distributors that are made of little band that work in 2.4GHZ-2.5GHZ with two distributors, and the distributor that the magnet ring of using in CATV low frequency four distributors and the traditional C ATV system consists of is consistent, and its circuit theory diagrams as shown in Figure 8.The little of Wi-Fi and CATV can adopt the microstrip circuit of computer-aided design to consist of with mixer.Describedly littlely the radiofrequency signal that enters can be divided equally or distribute by a certain percentage with two distributors; Described CATV low frequency four distributors can be divided equally the CATV signal or distribute by a certain percentage.
Wherein first, second input is that radiofrequency signal (Wi-Fi) input, the 3rd input are the CATV signal input part.First, second little two distributors and first, second input be with is coupled respectively, thus received RF signal, and radiofrequency signal is divided into four the tunnel altogether.Simultaneously, CATV low frequency four distributors and the coupling of the 3rd input, thus receive the CATV signal, and the CATV signal is divided into four the tunnel.In use, its operation principle is: the signal that each is come in from radio-frequency (RF) signal input end, by corresponding little two distributors of being with, carry out being transferred to a corresponding little input port with mixer after low-loss ground distributes, the signal that the CATV input is come in is also undertaken being transferred to corresponding little another one input port with mixer after low-loss ground distributes by CATV low frequency four distributors, radiofrequency signal and CATV signal after distributing is carried out exporting after the low-loss height closes the road isolator with mixer by little at last.
[embodiment 3]
The radiofrequency signal of the utility model the 3rd preferred embodiment and CATV signal mixed allocation device are as shown in Figure 5.This mixed allocation device comprises five inputs, four little two distributors, CATV low frequency eight distributors and eight little band mixers be with.Four little is the distributors that are made of little band that work in 2.4GHZ-2.5GHZ with two distributors, and its principle is identical with traditional high frequency distributor; The distributor that the magnet ring of using in CATV low frequency eight distributors and the traditional C ATV system consists of is consistent.The little of Wi-Fi and CATV can adopt the microstrip circuit of computer-aided design to consist of with mixer.Describedly littlely the radiofrequency signal that enters can be divided equally or distribute by a certain percentage with two distributors; Described CATV low frequency eight distributors can be divided equally the CATV signal or distribute by a certain percentage.
Wherein first, second, third, fourth input is that radiofrequency signal (Wi-Fi) input, the 5th input are the CATV signal input part.First, second, third, fourth little two distributors and first, second, third, fourth input be with is coupled respectively, thus received RF signal.Simultaneously, CATV low frequency eight distributors and the coupling of the 5th input, thus receive the CATV signal.In use, its operation principle is: the signal that each is come in from radio-frequency (RF) signal input end, by corresponding little two distributors of being with, carry out being transferred to a corresponding little input port with mixer after low-loss ground distributes, the signal that the CATV input is come in is also undertaken being transferred to corresponding little another one input port with mixer after low-loss ground distributes by CATV low frequency eight distributors, radiofrequency signal and CATV signal after distributing is carried out exporting after the low-loss height closes the road isolator with mixer by little at last.
[embodiment 4]
The radiofrequency signal of the utility model the 4th preferred embodiment and CATV signal mixed allocation device are as shown in Figure 6.This mixed allocation device comprises two inputs, little four props, CATV low frequency four props and four the little band mixers be with.Little is the distributors that are made of little band that work in 2.4GHZ-2.5GHZ with four props, and its principle is identical with traditional high frequency distributor; The distributor that the magnet ring of using in CATV low frequency four distributors and the traditional C ATV system consists of is consistent.The little of Wi-Fi and CATV can adopt the microstrip circuit of computer-aided design to consist of with mixer.Describedly littlely the radiofrequency signal that enters can be divided equally or distribute by a certain percentage with four props; Described CATV low frequency four props can be divided equally the CATV signal or distribute by a certain percentage.
Wherein first input end is that radiofrequency signal (Wi-Fi) input, the second input are the CATV signal input part.Little four splitters and first input end be with is coupled, thus received RF signal.Simultaneously, CATV low frequency four splitters and the coupling of the second input, thus receive the CATV signal.In use, its operation principle is: the signal that each is come in from radio-frequency (RF) signal input end, divide four props by corresponding little band, carry out being transferred to a corresponding little input port with mixer after low-loss ground distributes, the signal that the CATV input is come in is also undertaken being transferred to corresponding little another one input port with mixer after low-loss ground distributes by CATV low frequency four distributors, radiofrequency signal and CATV signal after distributing is carried out exporting after the low-loss height closes the road isolator with mixer by little at last.
Wherein, alternatively, described mixed allocation device also comprises power amplifier, and described power amplifier is arranged on before little at least one radiofrequency signal input port with mixer.That is, before being transferred to a corresponding little input port with mixer after corresponding little distribution, add power amplifier, to improve the receiving sensitivity of wi-fi signal with radiofrequency signal (Wi-Fi) being carried out low-loss with four props.Although only in the first, the 4th embodiment, added power amplifier, yet be to be understood that for those skilled in the art this power amplifier can be applied among each embodiment of the present utility model.
[embodiment 5]
If at first running into the Cable﹠amp of 5M to 2.5G; During the Wi-Fi mixed signal, can be at first little band mixer anti-use as splitter, thereby obtain CATV and Wi-Fi two paths of signals, its schematic diagram is as shown in figure 10.Then as described above in Example, the distribution that divides first the mode of closing afterwards to realize broadband signal again, its principle such as above-mentioned embodiment here will repeat no more.
Little circuit theory diagrams with mixer of the utility model preferred embodiment as shown in Figure 7.As above embodiment 1-embodiment 5 is described, a little input port (the first input port) incoming radio frequency signal with mixer, another one input port (the second input port) access CATV signal.This little band mixer comprises following components and parts.
Comprising four electric capacity that are connected in series (C8, C9, C10, C11) corresponding to the electric elements in the first series via of incoming radio frequency signal; Each electric capacity along receiving side signal to positive terminal (anode) connect one group of series circuit, thereby four series circuits (M6, C12) in parallel, (M7, C13), (M8, C14), (M9, C15) in whole series via, this series circuit is made of microstrip line and electric capacity, the positive terminal of the electric capacity in one end of this series circuit and the corresponding series via is connected other end ground connection.
Comprising corresponding to the electric elements in the second series via of access CATV signal: three groups of parallel circuitss (C1, M2), (C2, M3) (C3, M4) are connected in series respectively, wherein each parallel circuits consists of by electric capacity is in parallel with microstrip line, the two ends of first group of parallel circuits connect respectively the end of capacitor C 4, C5, the other end ground connection of capacitor C 4, C5; Second group of parallel circuits along receiving side signal to positive terminal (anode of C2) connect an end of capacitor C 6, the other end ground connection of capacitor C 6; The 3rd group of parallel circuits along receiving side signal to negative pole end (negative electrode of C 3) connect capacitor C 7, the other end ground connection of capacitor C 7; The front end of the series circuit that forms at three groups of parallel circuitss simultaneously, and the rear end microstrip line (M1, M5) of connecting respectively.Terminal microstrip line (M5) thus output CATV signal mixes rear output with the radiofrequency signal of electric capacity (C11) output of the first series via end.
Above-mentionedly littlely be preferably patch capacitor with the electric capacity in the mixer, simultaneously need to prove that here the electric elements of above-mentioned the first series via are a kind of preferred embodiments, only be to illustrate the principle of the preferred structure of this first series via, and be not intended to be limited to this, that is, the series capacitance on the first series via (C8, C9, C10, C11) and corresponding series circuit (M6, C12) thereof, (M7, C13), (M8, C14), (M9, C15) also can realize by two groups, three groups, five groups etc.
Adopt little band mixer of foregoing circuit structure, owing to utilizing microstripline as inductance, and can adopt the high frequency patch capacitor to form simultaneously, thus compare with original scheme, have following advantage: the performance parameter that 1, mainly is Insertion Loss and isolation etc. has been got well many than originally; 2, because the consistency of microstrip line, the consistency of production processing easily guarantees, cost performance is higher.
It should be noted that at last, above embodiment is only in order to describe the technical solution of the utility model rather than the present technique method is limited, the utility model can extend to other modification, variation, application and embodiment on using, and therefore thinks that all such modifications, variation, application, embodiment are in spirit of the present utility model and teachings.
Claims (11)
1. mixed allocation device that is used for radiofrequency signal and CATV signal, this mixed allocation device comprises a plurality of inputs, at least one little Tape dispensers, a CATV low frequency distributor and a plurality of little band mixer; Wherein in a plurality of inputs is the CATV signal input part, and remaining is radio-frequency (RF) signal input end, the coupling of described CATV signal input part and described CATV low frequency distributor, and described radio-frequency (RF) signal input end is coupled with corresponding described little Tape dispensers; The quantity N of the shunting sign that at least one little Tape dispensers is total equals the quantity N of CATV low frequency distributor shunting sign, and the quantity N of described shunting sign equals described little quantity N with mixer; And the quantity N of described shunting sign satisfies following formula:
N=2
n（n=2、3、4……）；
It is characterized in that:
The signal of coming in from each radio-frequency (RF) signal input end, by corresponding described little Tape dispensers, distribute first and be transferred to afterwards a corresponding little input port with mixer, simultaneously, be transferred to corresponding little another one input port with mixer after the signal that the CATV signal input part is come in also distributes by CATV low frequency distributor, littlely export after with mixer the radiofrequency signal after distributing and CATV signal being closed the road by described at last.
2. mixed allocation device according to claim 1 is characterized in that, described little Tape dispensers is divided equally the radiofrequency signal that receives or is distributed into by a certain percentage N road signal; Described CATV low frequency distributor is divided equally the CATV signal or is distributed into by a certain percentage N road signal.
3. mixed allocation device according to claim 1 is characterized in that, described a plurality of inputs are three inputs; Described at least one little Tape dispensers is two little four distributors of being with; Described CATV low frequency distributor is CATV low frequency eight distributors; Described little band mixer is eight little band mixers.
4. mixed allocation device according to claim 1 is characterized in that, described a plurality of inputs are three inputs; Described at least one little Tape dispensers is two little two distributors of being with; Described CATV low frequency distributor is CATV low frequency four distributors; Described a plurality of little band mixer is four little band mixers.
5. mixed allocation device according to claim 1 is characterized in that, described a plurality of inputs are five inputs; Described at least one little Tape dispensers is four little two distributors of being with; Described CATV low frequency distributor is CATV low frequency eight distributors; Described a plurality of little band mixer is eight little band mixers.
6. mixed allocation device according to claim 1 is characterized in that described a plurality of input is two inputs; Described at least one little Tape dispensers is little two distributors of being with; Described CATV low frequency distributor is CATV low frequency four distributors; Described a plurality of little band mixer is four little band mixers.
7. each described mixed allocation device is characterized in that according to claim 1-6, described little the first series via of incoming radio frequency signal and the second series via of access CATV signal of comprising with mixer;
Wherein, the first series via comprises the electric capacity of at least two series connection, each electric capacity along receiving side signal to positive terminal connect one group of series circuit, this series circuit is made of microstrip line and electric capacity, the positive terminal of the electric capacity in one end of this series circuit and the corresponding series via is connected other end ground connection;
Wherein three groups of parallel circuitss are connected respectively in this second series via, and wherein each parallel circuits consists of by electric capacity is in parallel with microstrip line, and the two ends of first group of parallel circuits connect respectively an end of capacitor C 4, capacitor C 5, the other end ground connection of capacitor C 4, capacitor C 5; Second group of parallel circuits along receiving side signal to positive terminal connect an end of capacitor C 6, the other end ground connection of capacitor C 6; The 3rd group of parallel circuits along receiving side signal to negative pole end connect capacitor C 7, the other end ground connection of capacitor C 7; Microstrip line M1, M5 connect respectively for the leading portion of the series circuit that forms at three groups of parallel circuitss simultaneously, and rear end.
8. mixed allocation device according to claim 7 is characterized in that, the electric capacity of described at least two series connection is 4.
9. mixed allocation device according to claim 8 is characterized in that, described electric capacity is patch capacitor.
10. mixed allocation device according to claim 7 is characterized in that, described mixed allocation device also comprises power amplifier, and described power amplifier is arranged on before little at least one radiofrequency signal input port with mixer.
11. mixed allocation device according to claim 7, further comprise and described a plurality of input, at least one little Tape dispensers and low frequency distributor between little band mixer of reverse use, be used for receiving 5M to the mixed signal of CATV and the Wi-Fi of 2.5G, from described mixed signal, to isolate CATV signal and Wi-Fi signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220328476 CN202696635U (en) | 2012-07-06 | 2012-07-06 | Mixed distribution device for radio frequency signal and CATV signal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220328476 CN202696635U (en) | 2012-07-06 | 2012-07-06 | Mixed distribution device for radio frequency signal and CATV signal |
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| CN202696635U true CN202696635U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220328476 Expired - Lifetime CN202696635U (en) | 2012-07-06 | 2012-07-06 | Mixed distribution device for radio frequency signal and CATV signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202696635U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752179A (en) * | 2012-07-06 | 2012-10-24 | 全军 | Radio frequency signal and CATV (Community Antenna Television) signal hybrid distribution device, and method for device |
| CN114497943A (en) * | 2021-12-16 | 2022-05-13 | 中国电子科技集团公司第二十九研究所 | Ultra-wideband reconfigurable routing network and frequency band allocation method |
-
2012
- 2012-07-06 CN CN 201220328476 patent/CN202696635U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752179A (en) * | 2012-07-06 | 2012-10-24 | 全军 | Radio frequency signal and CATV (Community Antenna Television) signal hybrid distribution device, and method for device |
| CN102752179B (en) * | 2012-07-06 | 2015-04-15 | 全军 | Radio frequency signal and CATV (Community Antenna Television) signal hybrid distribution device |
| CN114497943A (en) * | 2021-12-16 | 2022-05-13 | 中国电子科技集团公司第二十九研究所 | Ultra-wideband reconfigurable routing network and frequency band allocation method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130123 Effective date of abandoning: 20150415 |
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| RGAV | Abandon patent right to avoid regrant |