CN2812413Y

CN2812413Y - Nine-network multiplexing platform

Info

Publication number: CN2812413Y
Application number: CN 200520110166
Authority: CN
Inventors: 王景锁
Original assignee: DONGFANG XINLIAN SCIENCE-TECHNOLOGY Co Ltd BEIJING
Current assignee: DONGFANG XINLIAN SCIENCE-TECHNOLOGY Co Ltd BEIJING
Priority date: 2005-06-20
Filing date: 2005-06-20
Publication date: 2006-08-30
Anticipated expiration: 2015-06-20

Abstract

The utility model relates to a nine-network multiplexing platform which is formed by cascading various combiners, wherein each combiner comprises a cavity, an inner conductor, a tuning screw, a nut, an installing screw, a joint and a cover plate; the utility model is provided with the combiners, and is also provided with an absorption circuit. Each combiner adopts a third-level structure to enable the combiner to be an input port. 15 output ports enable each operator to access. Thus, the executive cost is reduced, the isolation among networks is ensured and the utility model can provide sufficient high isolation importantly applied in engineering. The utility model is suitable for composite networks, and can be adapted to the harsh environment of the networks. Owing to a good response mode, after composite networks, the utility model further optimizes the networks, so the utility model is suitable for applying.

Description

Nine nets close channel platform

Technical field

Nine nets that the utility model relates to a kind of wireless communication field close channel platform, particularly relate to a kind of mixer of networking, the frequency band that it comprises is: trunking communication, CDMA, GSM move, a kind of nine nets of GSM UNICOM, DCSU, DCSM, PHS, WCDMA and nine network systems of WLAN close channel platform.

Background technology

In present mobile communication, often include a plurality of nets, cause many nets to mix, equipment complexity, repetition, the phase mutual interference interacts, the cost height, communication efficiency is poor.Cluster, CDMA, GSM move in the existing networking, GSM UNICOM, DCS, PHS, WCDMA and WLAN frequency range transmit in the same space that to exist between them isolation low, mutual interference, interact and transmit not smooth problem, in nine net frequencies of operation at present from 800MHz to 2.5GHz, each operation commercial city is a net of respectively building each, at most also is that two nets and three nets are synthetic.

This shows that above-mentioned existing mixer obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem that mixer exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.

Because the defective that above-mentioned existing mixer exists, the utility model people is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, close channel platform in the hope of nine nets of founding a kind of new structure, can improve general existing mixer, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the utility model that has practical value finally.

Summary of the invention

Main purpose of the present utility model is, overcome the defective that existing mixer exists, and nine nets that a kind of new structure is provided close channel platform, to be solved is cluster in the existing networking, CDMA, Tie Tong, GSM moves, GSM UNICOM, DCS, PHS, WCDMA, the problem of in same system, transmitting with the WLAN frequency range, solving the technical problem that isolation is low between them all can insert each net, keep certain isolation between net and the net, be independent of each other, do not disturb mutually, make each net can both good unimpeded communication, and the reduction construction cost, thereby be suitable for practicality more, and have the value on the industry.

Another purpose of the present utility model is, provides a kind of nine nets to close channel platform, and the interface that it provided can insert each operator, thereby is suitable for practicality more.

A purpose more of the present utility model is, provides a kind of nine nets to close channel platform, and technical problem to be solved is to make the signal of various frequencies can not produce interference, makes it that sufficiently high isolation be arranged, thereby is suitable for practicality more.

An also purpose of the present utility model is, provides a kind of nine nets to close channel platform, reduces construction cost, makes the least possible antenna of use in the networking process, thereby is suitable for practicality more.

The purpose of this utility model and solve its technical problem and realize by the following technical solutions.

Close channel platform according to nine nets that the utility model proposes, combine by six mixers.Each mixer adopts cascade form.Wherein the structure division of each mixer comprises: compositions such as cavity, inner wire, tuning screw, screw, mounting screw, joint, absorption circuit, cover plate.Each mixer adopts the coaxial cavity structure, the input and output joint is connected on the cavity, forms the input/output terminal of each mixer, links to each other with inner wire with the inner core of silver-coated copper wire with joint, between its each chamber, the mode by coupling aperture connects each chamber in the coaxial cavity mixer.Each mixer has mounting screw on its cover plate, these screws can make cover plate contact closely with cavity, and are unlikely between cover plate and cavity the space is arranged.In aforesaid each mixer tuning screw is arranged on the cover board, change the electrical length of inner wire by the distance between adjustment tuning screw and the inner wire.In addition, the tuning screw on the cover plate can change the stiffness of coupling between the adjacent cavity.

The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.

Aforesaid nine nets close channel platform, and wherein said six mixers are by TETRA﹠amp; CDMA﹠amp; GSM/DCS/PHS﹠amp; WCDMA﹠amp; The WLAN mixer, TETRA﹠amp; The CDMA/GSM mixer, the DCSM/DCSU mixer, the PHS/WCDMA/WLAN mixer, the TETRA/CDMA mixer, the cascade of GSMM/GSMU mixer forms, and its connection procedure is TETRA﹠amp; CDMA﹠amp; GSM/DCS/PHS﹠amp; WCDMA﹠amp; The TETRA﹠amp of WLAN mixer; CDMA﹠amp; The GSM delivery outlet is connected to TETRA﹠amp; The input port of CDMA/GSM mixer, the DCS delivery outlet is connected to the input port of DCSM/DCSU mixer, PHS﹠amp; WCDMA﹠amp; The WLAN delivery outlet is connected to the input port of PHS/WCDMA/WLAN, TETRA﹠amp; The TETRA﹠amp of CDMA/GSM mixer; The delivery outlet of CDMA is connected to the input port of TETRA/CDMA mixer, and the GSM delivery outlet is connected to the input port of GSMM/GSMU mixer, wherein at GSMM/GSMU mixer, TETRA﹠amp; CDMA﹠amp; GSM/DCS/PHS﹠amp; WCDMA﹠amp; All add perception and capacitive absorption circuit in WLAN mixer and the PHS/WCDMA/WLAN mixer, improve squareness factor by elliptic function, wherein, perceptual loop be installed in frequency low a road in, the capacitive absorption circuit be installed in frequency high a road in

Aforesaid nine nets close channel platform, and wherein said cascade forms the mixer level and adopts tertiary structure:

The first order: at first using TETRA﹠amp; CDMA﹠amp; GSM/DCS/PHS﹠amp; WCDMA﹠amp; The WLAN mixer is divided into three sections to nine nets, i.e. three outlet frequencies, and first section for 800MHz-1000MHz comprises the C net, G net, cluster, Tie Tong.Second section for 1700MHz-1800MHz comprises DCS UNICOM, and DCS moves, and the 3rd section is 1900MHz-2.5GHz, comprises PHS, WCDMA, WLAN, the second level: use TETRA﹠amp for above-mentioned first section; The CDMA/GSM mixer is divided into collection C net and G net, the third level: with nine nets all separately, concrete scheme is: above-mentioned partial TETRA﹠amp; The TETRA﹠amp of CDMA/GSM mixer; The CDMA mouth connects the input port of TETRA/CDMA mixer, the GSM mouth connects the input port of GSMM/GSMU mixer, cluster, CDMA, GSM can be moved like this, GSM UNICOM separately, above-mentioned second section is divided into DCS UNICOM with DCSU/DCSM and DCS moves, above-mentioned the 3rd section is divided into PHS with the PHS/WCDMA/WLAN mixer, WCDMA and WLAN three road signals, like this, just constituted an input port, 15 delivery outlets.

The utility model compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, in order to reach aforementioned goal of the invention, major technique of the present utility model thes contents are as follows:

Via as can be known above-mentioned, the utility model proposes a kind of nine nets and close channel platform, be to form by the different various mixer cascades of structure.Each mixer structure division comprises: cavity, inner wire, tuning screw, screw, mounting screw, joint, absorption circuit, cover plate.Each mixer makes it to become an input port by adopting tertiary structure, 15 delivery outlets, and in the mixer that has, added absorption circuit, sufficiently high isolation can be provided, further improved isolation, guaranteed the isolation between the networking, made the signal of various frequencies can not produce interference.After combination, fewer loss is arranged again, be fit to application in engineering.Such classification cascade structure can make each operator insert, and has reduced the cost of construction.In engineering, has very important use.It is adapted at using in the networking, can adapt to the residing adverse circumstances of network.And,, be suitable for more using because good response forms makes it play the effect that network is further optimized after networking.

By technique scheme, nine nets that the utility model proposes close channel platform and have following advantage at least:

1, nine nets that the utility model proposes close channel platform, and rationally distributed for the coaxial cavity structure, adaptability is strong, and very wide application space is arranged in networking.

2, nine nets that the utility model proposes close channel platform, by the classification cascade structure, make it to become an input port, and 15 delivery outlets can make each operator insert, and have reduced the cost of construction.And guaranteed isolation between the networking to make the signal of various frequencies can not produce interference, sufficiently high isolation can be provided, can improve the performance of network greatly, strengthened the reliability of network, in engineering, have very important use.

3, nine nets that the utility model proposes close channel platform, and the interface of each operator is provided, and can reduce construction cost greatly, simplify work progress.

In sum, nine nets of the utility model special construction close channel platform, and its each net all can be inserted, keep certain isolation between net and the net, be independent of each other, do not disturb mutually, make each net can both good unimpeded communication, thereby be suitable for practicality more, and have the value on the industry.It has above-mentioned many advantages and practical value, and in like product, do not see have similar structural design to publish or use and really genus innovation, no matter it structurally or bigger improvement all arranged on the function, have large improvement technically, and produced handy and practical effect, and more existing mixer has the multinomial effect of enhancement, thus be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.

Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, below with preferred embodiment of the present utility model and conjunction with figs. describe in detail as after.

Embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.

Description of drawings

Fig. 1: the structural representation of PHS/WCDMA/WLAN mixer in the utility model;

Fig. 2 A: PHS﹠amp in the utility model; The front view of WCDMA/WLAN mixer;

Fig. 2 B: PHS﹠amp in the utility model; Partial sectional view is looked on the right side of WCDMA/WLAN mixer;

Fig. 3 A: the PHS﹠amp in the utility model; The front view of the PHS/WCDMA mixer in the WCDMA/WLAN mixer;

Fig. 3 B: the PHS﹠amp in the utility model; Part sectioned view is looked on the left side of the PHS/WCDMA mixer in the WCDMA/WLAN mixer;

Fig. 4 A: polytetrafluoroethylene piece front view in the utility model;

Fig. 4 B: polytetrafluoroethylene piece left view in the utility model;

Fig. 4 C: polytetrafluoroethylene piece vertical view in the utility model;

Fig. 5: capacitive absorption circuit structure chart in the utility model;

Fig. 6: perceptual absorption circuit structural representation in the utility model;

Fig. 7: the inner wire schematic diagram in the utility model;

Fig. 8: the PHS﹠amp in the utility model; The cover plate figure of PHS/WCDMA mixer in the WCDMA/WLAN mixer;

Fig. 9: the utility model TETRA﹠amp; The structure chart of CDMA/GSM mixer;

Figure 10: the utility model TETRA﹠amp; CDMA﹠amp; GSM/DCS/PHS﹠amp; WCDAM﹠amp; The structure chart of WLAN mixer

Figure 11: the top view structure figure of the utility model GSMM/GSMU mixer;

Figure 12: the top view structure chart of the utility model TETRA/CDMA mixer;

Figure 13: the top view structure chart of the utility model DCSU/DCSM mixer;

Figure 14: the utility model nine nets close the structured flowchart of channel platform.

Wherein:

1:PHS﹠amp; WCDMA/WLAN mixer 2:PHS/WCDMA mixer

3: input port silver-coated copper wire 4: the joint mounting screw

5:SMA-KFD40 joint 6: coupling aperture

7: cover plate mounting screw 8: nut

9: pad 10: the delivery outlet silver-coated copper wire

11: capacitive absorption circuit 12 cavitys

13: cover plate 14: perceptual absorption circuit

15 frequency tuning screws 16: coupling tuning screw

17 cover plates are installed screwed hole 18: inner wire

19: groove 20: the cover plate through hole

21: cover plate screwed hole 22: joint is installed screwed hole

23: perceptual absorption circuit welding hole

25: counterbore 26: the inner wire hold-down screw

The 27:N-KFD12 joint

28: the polytetrafluoroethylene piece

A-W: chamber

29:TETRA﹠amp; CDMA﹠amp; GSM/DCS/PHS﹠amp; WCDMA﹠amp; The WLAN mixer

30:PHS/WCDMA/WLAN mixer 31:DCSM/DCSU mixer

32:TETRA﹠amp; CDMA/GSM mixer 33:TETRA/CDMA mixer

The 34:GSMM/GSMU mixer

Embodiment

For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to closing its embodiment of channel platform, structure, feature and effect thereof according to nine nets that the utility model proposes, describe in detail as after.

See also Fig. 1, Fig. 2 A, Fig. 2 B, Fig. 3 A, Fig. 3 B, Fig. 4 A, Fig. 4 B, Fig. 4 C, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, shown in Figure 14, nine nets of the utility model preferred embodiment close channel platform, it mainly forms institute by six each and every one mixer cascades forms, and comprises TETRA﹠amp; CDMA﹠amp; GSM/DCS/PHS﹠amp; WCDMA﹠amp; WLAN mixer 29, TETRA﹠amp; CDMA/GSM mixer 32, DCSM/DCSU mixer 31, PHS/WCDMA/WLAN mixer 30, TETRA/CDMA mixer 33, GSMM/GSMU mixer 34 forms.See also the structured flowchart that nine nets shown in Figure 14 close channel platform.PHS/WCDMA/WLAN mixer wherein is by PHS﹠amp; WCDMA/WLAN mixer and PHS/WCDMA mixer combine.At this we with PHS/WCDMA/WLAN as a mixer.

Now as an illustration with the structure of wherein PHS/WCDMA/WLAN mixer 30.As shown in Figure 1: PHS/WCDMA/WLAN mixer 30 is by PHS/WCDMA mixer 2 and PHS﹠amp; 1 two mixer cascades of WCDMA/WLAN mixer form PHS﹠amp; The inlet of WCDMA/WLAN mixer 1 is as the inlet of whole mixer, its PHS﹠amp; The outlet on WCDMA road is connected to the inlet of PHS/WCDMA, constitutes an inlet and three outlets of whole mixer.Two mixers are by compositions such as separately cavity, inner wire, inner wire hold-down screw, tuning screw, pad, screw, joint, joint hold-down screw, cover plate, cover plate mounting screws.The PHS/WCDMA mixer contains absorption circuit and polytetrafluoroethylene piece in addition.

Shown in Fig. 3 A, 3B, joint is installed on the through hole of the side of cavity 12 separately, and inner wire 18 usefulness inner wire hold-down screws 26 are installed to the bottom of cavity 12.Cover plate 13 usefulness cover plate hold-down screws 17 are installed to the top of cavity 12, and the capacitive absorption circuit 11 of PHS/WCDMA mixer is installed to the groove 19 interior (seeing Fig. 3 A) in adjacent two chambeies of cavity by polytetrafluoroethylene piece 28.Capacitive absorption circuit 11 is contained in the WCDMA road.Frequency tuning screw 15 and coupling tuning screw 16 are deep in the cavity 12 by the cover plate screwed hole 21 on the cover plate, be tuned to can be fixing behind the suitable position with nut 8.Be lined with pad 9 between nut 8 and cover plate 13, it is more firm to make it to connect.Perception absorption circuit 14 is installed on the PHS road, sees Fig. 6.

As shown in Figures 2 and 3, have joint that screwed hole 22 is installed in the input and output notch portion of cavity 12, and joint is a standarized component, can by joint screwed hole 22 be installed with joint mounting screw 4 and attach it on the cavity 12 PHS﹠amp; N-KFD12 joint 27 inner cores of WCDMA/WLAN mixer 1 and inner wire by input port silver-coated copper wire 3 both are coupled together with scolding tin.Wherein, on its public mouthful, adopt diagram Y-shaped branched structure that the inner wire 18 in joint inner core and each chamber is linked to each other input port silver-coated copper wire 3, directly be connected with inner wire 18 with the inner core of scolding tin SMA-5 joint 5 at output.Another output directly is connected the inner core of N-KFD joint 12 with inner wire 18.The inlet of PSH/WCDMA mixer is a SMA-KFD40 joint 27, and it receives PSH﹠amp; The PHS﹠amp of WCDMA/WLAN mixer; The WCDMA mouth.The inner core of the SMA-KFD40 joint 27 of PHS/WCDMA mixer 2 also is connected into illustrated branched structure, with delivery outlet silver-coated copper wire 10 it is linked to each other with inner wire 18.

Be equipped with the counterbore 25 of the sunk screw of can packing in the bottom of cavity 12, inner wire hold-down screw 26 is connected on the threaded inner wire in bottom by counterbore 25.Like this, after tightening inner wire mounting screw 26, the bottom that is fixed on cavity 12 that inner wire 18 just can be firm.

Capacitive absorption circuit 11 is installed on the groove 19 in adjacent two chambeies of cavity by polytetrafluoroethylene piece 28.The slit that its two ends and two inner wires 18 are formed equates.

The screwed hole 21 that cover plate mounting screw 7 is arranged above cavity, this screwed hole 7 is corresponding with the through hole 20 on the cover plate 13, with cover plate 13 top that is installed to cavity 12 tightly, many screws can guarantee the compactness that cover plate 12 is connected with cavity 13 with cover plate mounting screw 7.

Cover plate screwed hole 21 is arranged on cover plate 13, thereby frequency tuning screw 15 and the tuning nail 16 of coupling can be deep in the cavity 12 by cover plate screwed hole 21, frequency and coupling are adjusted, when be tuned to behind the suitable position, with nut 8 frequency tuning screw 15 and coupling tuning screw 16 are fixed on cover plate 13 tops.Between cover plate 13 and nut 8, pad 9 is arranged, make tuning screw more firm.

As Figure 10, TETRA﹠amp; CDMA﹠amp; GSM/DCS/PHS﹠amp; WCDMA﹠amp; The first order that WLAN mixer 29 closes channel platform as whole nine nets, its input port is as the input port of whole mixer.Its TETRA﹠amp; CDMA﹠amp; The GSM delivery outlet is received TETRA﹠amp; On the input port of CDMA/GSM mixer, the DCS delivery outlet is received the input port of DCSU/DCSM mixer, PHS﹠amp; WCDMA﹠amp; The WLAN delivery outlet is connected to PHS﹠amp; On the input port of WCDMA/WLAN mixer, PHS﹠amp; WCDMA﹠amp; The WALN mouth is received on the input port of PHS/WCDMA/WLAN mixer.The structure of its internal structure and other mixer is similar.But consider that it provides effect just along separate routes, and its isolation that provides can meet the demands also, just not add absorption circuit therein.

As shown in Figure 9, TETRA﹠amp; The second level that CDMA/G SM mixer 32 closes channel platform as nine nets, its input port is connected to TETRA﹠amp; CDMA﹠amp; GSM/DCS/PHS﹠amp; WCDMA﹠amp; The TETRA﹠amp of WLAN mixer 29; CDMA﹠amp; The GSM mouth, its TETRA﹠amp; The CDMA delivery outlet is connected to the input port of TETRA/GSM mixer 33.The GSM delivery outlet is connected to the input port of GSMM/GSMU mixer 34.Its internal structure includes inner wire and absorption circuit equally, at its high-end capacitive absorption circuit 11 that is equipped with, at its low side perceptual absorption circuit 14 is installed.

As shown in figure 13, the similar of DCSM/DCSU mixer 31 and GSMM/GSMU mixer 34, this mixer also is to adopt bilevel version, the input port of DCSM/DCSU mixer 31 is connected to TETRA﹠amp; CDMA﹠amp; G SM/DCS/PHS﹠amp; WCDMA﹠amp; On the DC S delivery outlet of WLAN mixer 29.Its delivery outlet has constituted DCS uplink and downlink separately.Because it is far away that they are separated by, so do not have absorption circuit in its inside.

As shown in figure 12, this figure is the top view of TETRA/CDMA mixer 33 owing to adopted the cause of same bottom surface, so in its vertical view and the top view only to see three connectors.And because vertical view in be the low side of cluster and CDMA, in the top view is the high-end of TETRA and CDMA, overlook thus with top view be symmetrical.The input port of this mixer is connected to TETRA﹠amp; The TETRA﹠amp of CDMA/GSM mixer 32; On the CDMA delivery outlet.The delivery outlet of himself has constituted the uplink and downlink of cluster and CDAM.Install perceptual absorption circuit 13 it high-end, install capacitive absorption circuit 11 at its low side.

As shown in figure 11, the input port of GSMM/GSMU mixer 34 is connected to TETRA﹠amp; On the GSM delivery outlet of CDMA/GSM mixer 32, the delivery outlet of himself has constituted GSM and has moved uplink and downlink with UNICOM.Same is to install capacitive absorption circuit 11 in UNICOM's section in this mixer, installs perceptual absorption circuit 13 in mobile section.And because the output of four road signals is arranged, what also adopt is the version of the shared bottom surface of TETRA/CDMA mixer 33.

The utility model will be transferred survey by network analyzer, at first network analyzer will be carried out preheating about 30 minutes, with its correction, then the utility model is received network analyzer then, has finished the preparation of transferring before surveying.Debugging at first is fixed on frequency range in 2 to 3 times the scope that requires bandwidth, make its centre frequency just for requiring the centre frequency of bandwidth, at first use the tuning nail of screwdriver regulating frequency, it is carried out coarse adjustment, then alternately regulating frequency and coupling are followed closely, and make it to meet the requirements of technical indicator.

After debugging good single mixer respectively, its form by Figure 14 is coupled together.Be the utility model.Its connection procedure is TETRA﹠amp; CDMA﹠amp; GSM/DCS/PHS﹠amp; WCDMA﹠amp; The TETRA﹠amp of WLAN mixer 29; CDMA﹠amp; The GSM delivery outlet is connected to TETRA﹠amp; The input port of CDMA/GSM mixer 32, the DCS delivery outlet is connected to the input port of DCSM/DCSU mixer 31, PHS﹠amp; WCDMA﹠amp; The WLAN delivery outlet is connected to the input port of PHS/WCDMA/WLAN mixer 30.TETRA﹠amp; The TETRA﹠amp of CDMA/GSM mixer 32; The delivery outlet of CDMA is connected to the input port of TETRA/CDMA mixer 33, and the GSM delivery outlet is connected to the input port of GSMM/GSMU mixer 34.Like this, just constituted an input port, nine nets of nine delivery outlets close channel platform.

The technological innovation that the utility model nine nets that above-mentioned structure like this constitutes close channel platform all has many saving graces for technical staff of the same trade now, and the progressive that possesses skills really.

Be that basic design of the present utility model is divided into three grades of connections with six mixers as mentioned above, make it to become an input port, 15 delivery outlets, its each net all can be inserted, keep certain isolation between net and the net, be independent of each other, do not disturb mutually, make each net can both good unimpeded communication.But, in technical field of the present utility model,, can improve other exercisable embodiment of the present utility model as long as possess the most basic knowledge.In the utility model substantive technical scheme has been proposed the patent protection request, its protection range should comprise all variation patterns with above-mentioned technical characterstic.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.

Claims

1, a kind of nine nets close channel platform, it is characterized in that: it is combined by six mixers, each mixer adopts cascade form, wherein the structure division of each mixer comprises: cavity, inner wire, tuning screw, screw, mounting screw, joint, absorption circuit, compositions such as cover plate, each mixer adopts the coaxial cavity structure, the input and output joint is connected on the cavity, the input/output terminal of forming each mixer, link to each other with inner wire with the inner core of silver-coated copper wire joint, in the coaxial cavity mixer between its each chamber, mode by coupling aperture connects each chamber, each mixer has mounting screw on its cover plate, these screws can make cover plate contact closely with cavity, and be unlikely to that the space is arranged between cover plate and cavity, in aforesaid each mixer tuning screw is arranged on the cover board, change the electrical length of inner wire by the distance between adjustment tuning screw and the inner wire.In addition, the tuning screw on the cover plate can change the stiffness of coupling between the adjacent cavity.

2, nine nets according to claim 1 close channel platform, it is characterized in that described six mixers are by TETRA﹠amp; CDMA﹠amp; GSM/DCS/PHS﹠amp; WCDMA﹠amp; The WLAN mixer, TETRA﹠amp; The CDMA/GSM mixer, the DCSM/DCSU mixer, the PHS/WCDMA/WLAN mixer, the TETRA/CDMA mixer, the cascade of GSMM/GSMU mixer forms, and its connection procedure is TETRA﹠amp; CDMA﹠amp; GSM/DCS/PHS﹠amp; WCDMA﹠amp; The TETRA﹠amp of WLAN mixer; CDMA﹠amp; The GSM delivery outlet is connected to TETRA﹠amp; The input port of CDMA/GSM mixer, the DCS delivery outlet is connected to the input port of DCSM/DCSU mixer, PHS﹠amp; WCDMA﹠amp; The WLAN delivery outlet is connected to the input port of PHS/WCDMA/WLAN, TETRA﹠amp; The TETRA﹠amp of CDMA/GSM mixer; The delivery outlet of CDMA is connected to the input port of TETRA/CDMA mixer, and the GSM delivery outlet is connected to the input port of GSMM/GSMU mixer, wherein at GSMM/GSMU mixer, TETRA﹠amp; CDMA﹠amp; GSM/DCS/PHS﹠amp; WCDMA﹠amp; All add perception and capacitive absorption circuit in WLAN mixer and the PHS/WCDMA/WLAN mixer, improve squareness factor by elliptic function, wherein, perceptual loop be installed in frequency low a road in, the capacitive absorption circuit be installed in frequency high a road in.

3, nine nets according to claim 1 and 2 close channel platform, it is characterized in that described cascade forms the mixer level and adopts tertiary structure: