CN201332130Y - DCS1800/PHS double-frequency mixer - Google Patents
DCS1800/PHS double-frequency mixer Download PDFInfo
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- CN201332130Y CN201332130Y CNU2009200385193U CN200920038519U CN201332130Y CN 201332130 Y CN201332130 Y CN 201332130Y CN U2009200385193 U CNU2009200385193 U CN U2009200385193U CN 200920038519 U CN200920038519 U CN 200920038519U CN 201332130 Y CN201332130 Y CN 201332130Y
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Abstract
The utility model discloses a DCS1800 and PHS double-frequency mixer, belonging to the electronic information and mobile communication technical field, the utility model adopts the resonant cavity form, designs cavity filters respectively suitable for DCS1800 and PHS network signals on the same cavity by applying the basal principle of the filter. The utility model has high isolation degree in the narrow frequency range and has excellent response form, and the mixer has high technical index band external inhibition, small insert loss and small volume, is convenient for mounting and debugging, the whole system performance can be improved, the reliability of the network can be reinforced, the multi-system cover can be simplified, the DCS1800 and PHS double-frequency mixer is suitable for the application of engineering implement, and is a communication network apparatus with small volume, light weight, low cost and strong practicability.
Description
Technical field
The utility model is the network optimization product that belongs in electronic information and the mobile communication technology field, specifically is a kind of DCS1800 and PHS dual-frequency channel merger.
Background technology
PHS (Personal Handy-phone System, personal handhold telephone system) is meant a kind of wireless local telephony, adopts the microcellulor communication technology.The PHS technology is actually the digital mobile communication technology, belongs to the communication technology of the second generation.The PHS base station range is limited, and communication base station and terminal room distance are shorter.Therefore, the power of communications that adopts less, and need more base station when covering than large tracts of land.
DCS1800 (DigitalCellularSystemat1800MHz, the 1800MHz Digital Cellular System), China's mobile communication undergoes an unusual development rapidly, on the one hand because the restriction of 900MHz frequency resource, phenomenons such as frequency resource anxiety, channel deficiency have appearred in some areas, and traffic density is excessive; Utilize technology such as multiple frequency multiplex mode, multilayer covering, frequency hopping to come the increase capacity on the other hand, also have many limitations.Have only and carry out traffic by the DCS1800 net and share, could thoroughly address the above problem.
Therefore existing mass communication network optimization project when doing the signal covering, reduces the space in order to save cost, and the unlike signal system transmissions tends to use mixer to make multiple signals merge into one road signal.Therefore in DCS1800 and PHS co-space feedback system, dual-frequency channel merger is indispensable device.
Summary of the invention
The utility model is in order to solve the problem of DCS1800 and two system's co-space feedback systems of PHS, provide a kind of with DCS1800 and PHS network signal Design of Filter the dual-frequency channel merger on same cavity.
DCS1800 described in the utility model and PHS dual-frequency channel merger, comprise the cover plate on cavity and the cavity, inside cavity is provided with two filters, be respectively DCS1800 filter and PHS filter, three joint DCS1800 ports, the PHS port, public port is separately positioned on the cavity outside, DCS1800 port wherein, the PHS port is connected with the PHS filter input end with the DCS1800 filter input end respectively, public port is connected with the PHS filter output jointly with the DCS1800 filter output, and the partition wall of two filters in this junction has groove realization coupling.
The DCS1800 filter comprises 7 resonant cavitys that link to each other successively, i.e. first to the 7th resonant cavity, a resonant rod has been installed in the center of each resonant cavity, first resonant rod is connected with DCS1800 port and public port by coupled-wires respectively with last resonant rod, and between first resonant cavity and the 3rd resonant cavity, between the 3rd resonant cavity and the 5th resonant cavity chamber, between the 5th resonant cavity and the 7th resonant cavity chamber perceptual cross-couplings device is installed.Coupled-wires is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.Perception cross-couplings device is 3 installations tuning cross-lines on the cover board.
The PHS filter comprises 5 resonant cavitys that link to each other successively, i.e. the 8th to the 12 resonant cavity, a resonant rod has been installed in the center of each resonant cavity, first resonant rod is connected with PHS port and public port by coupled-wires respectively with last resonant rod, and between the 9th resonant cavity and the 11 resonant cavity capacitive cross-couplings device is installed.Coupled-wires is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.Capacitive cross-couplings device be 1 be fixed on cavity recessed poor in the tuning bar that flies.
The utility model adopts the resonant cavity form, and utilization filter basic principle will be applicable to that respectively the cavity body filter design of DCS1800 and PHS network signal is on same cavity.And be processed into cavity and, do not need with aluminum, under the prerequisite of influence technique index not, provide cost savings greatly electroplate in the technical finesse of inside cavity surface utilization electric conductive oxidation.Adopt above technology to make it in very narrow frequency range, accomplish very high isolation, has fabulous response forms, and it is high that the technical indicator band suppresses outward, Insertion Loss is little, volume is little, be convenient to Installation and Debugging, improve the performance of whole system, strengthen the reliability of network, simplified the multisystem covering preferably, and be more suitable for the engineering construction application.It is little to make it become volume, in light weight, the communication network equipment that cost is low, practical.
According to optimizing Principles of Network, index of the present utility model is:
Description of drawings
Fig. 1 is the planar structure schematic diagram of the utility model cavity;
Fig. 2 is this practical structure of cover plate schematic diagram;
Fig. 3 is the structural representation of this practical cavity side, and a is a left view, and b is a right view.
Embodiment
The utility model adopts lumped parameter and distributed constant principle, according to index, in conjunction with Chebyshev's type Design of Bandpass principle.See Fig. 1-3.The utility model comprises cavity 1 (1), cover plate 2 (1), resonant rod 7 (12), tuning screw 6 (22), mounting cover plate bolt (47), resonant rod screw (12) is installed, joint (3), mounting bracket (2), tuning bar (1), the tuning cross-line (3) of flying, inside cavity comprise that two filters are respectively DCS1800 and the PHS filter is formed.
It is respectively DCS1800 port 3, PHS port 4, public port 5 that whole mixer has three joints; DCS1800 port 3 is connected in public port 5 through first resonant cavity, 11 to the 7th resonant cavitys 17 by coupled-wires 8; PHS port 4 connects and access public port 5 by coupled-wires 8 through the 8th resonant cavity the 21 to the 12 resonant cavity 25.In network optimization compartment system, use this mixer, can make DCS1800 and PHS system share the same antenna, the signal that comes out respectively from two system base-stations enters DCS1800 port 3, the PHS port 4 of mixer separately, and the filter by separately closes the road to public port 5 again.
Inside cavity comprises that two filters are respectively DCS1800 and the PHS filter is formed.
The DCS1800 filter has 7 resonant cavitys, a resonant rod 7 (connecting with resonant rod screw 6 is installed) has been installed in the center of each resonant cavity, first is connected by coupled-wires 8 with joint with last resonant rod, coupled-wires 8 is that the silver-jacketed wire with ф 1 is fixed on resonant rod and the joint with scolding tin, coupling window is realized the coupling amount by two adjacent partition wall flutings of resonant rod, and between first resonant cavity 11 and the 3rd resonant cavity 13, between the 3rd resonant cavity 13 and the 5th resonant cavity 15, perceptual cross-couplings device (3 tuning cross-lines 9 also are installed on the cover plate 2) is installed between the 5th resonant cavity 15 and the 7th resonant cavity chamber 17.
The PHS filter has 5 resonant cavitys, a resonant rod 7 (with the resonant rod screw is installed) has been installed in the center of each resonant cavity, first is connected by coupled-wires 8 with joint with last resonant rod, coupled-wires 8 is that the silver-jacketed wire with ф 1 is fixed on resonant rod and the joint with scolding tin, coupling window is realized the coupling amounts by the adjacent partition walls fluting of two resonant rods, and capacitive cross-couplings device (1 tuning fly bar 10 be fixed on that cavity is recessed and be pickled with grains or in wine in) is installed between the 9th resonant cavity 22 and the 11 resonant cavity 24.
1 external stability of the utility model cavity has 18 two of mounting brackets, the convenient installation.After the product Installation and Debugging are finished, handle through stoving black varnish, outward appearance is generous durable again.
Claims (7)
1, a kind of DCS1800 and PHS dual-frequency channel merger, it is characterized in that: comprise the cover plate (2) on cavity (1) and the cavity (1), cavity (1) inside is provided with two filters, be respectively DCS1800 filter and PHS filter, three joint DCS1800 ports (3), PHS port (4), public port (5) is separately positioned on cavity (1) outside, DCS1800 port (3) wherein, PHS port (4) is connected with the PHS filter input end with the DCS1800 filter input end respectively, public port (5) is connected with the PHS filter output jointly with the DCS1800 filter output, and the partition wall of two filters in this junction has groove realization coupling.
2, DCS1800 according to claim 1 and PHS dual-frequency channel merger, it is characterized in that: the DCS1800 filter comprises 7 resonant cavitys (11-17) that link to each other successively, i.e. first to the 7th resonant cavity, a resonant rod (7) has been installed in the center of each resonant cavity (11-17), first resonant rod is connected with DCS1800 port (3) and public port (5) by coupled-wires (8) respectively with last resonant rod, and between first resonant cavity (11) and the 3rd resonant cavity (13), between the 3rd resonant cavity (13) and the 5th resonant cavity chamber (15), between the 5th resonant cavity (15) and the 7th resonant cavity chamber (17) perceptual cross-couplings device is installed.
3, DCS1800 according to claim 2 and PHS dual-frequency channel merger is characterized in that: coupled-wires is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.
4, DCS1800 according to claim 2 and PHS dual-frequency channel merger is characterized in that: perceptual cross-couplings device is 3 tuning cross-lines (9) that are installed on the cover plate (2).
5, according to claim 1,2,3 or 4 described DCS1800 and PHS dual-frequency channel merger, it is characterized in that: the PHS filter comprises 5 resonant cavitys (21-25) that link to each other successively, i.e. the 8th to the 12 resonant cavity, a resonant rod has been installed in the center of each resonant cavity (21-25), first resonant rod is connected with PHS port (4) and public port (5) by coupled-wires (8) respectively with last resonant rod, and between the 9th resonant cavity (22) and the 11 resonant cavity (24) capacitive cross-couplings device is installed.
6, DCS1800 according to claim 5 and PHS dual-frequency channel merger is characterized in that: coupled-wires is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.
7, DCS1800 according to claim 5 and PHS dual-frequency channel merger is characterized in that: capacitive cross-couplings device be 1 be fixed on cavity recessed poor in the tuning bar (10) that flies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200385193U CN201332130Y (en) | 2009-01-13 | 2009-01-13 | DCS1800/PHS double-frequency mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200385193U CN201332130Y (en) | 2009-01-13 | 2009-01-13 | DCS1800/PHS double-frequency mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201332130Y true CN201332130Y (en) | 2009-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200385193U Expired - Fee Related CN201332130Y (en) | 2009-01-13 | 2009-01-13 | DCS1800/PHS double-frequency mixer |
Country Status (1)
| Country | Link |
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| CN (1) | CN201332130Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789536A (en) * | 2010-01-07 | 2010-07-28 | 东莞市苏普尔电子科技有限公司 | Multi-frequency combining method and combiner manufactured by implementing same |
| CN104319444A (en) * | 2014-10-31 | 2015-01-28 | 湖北三江航天险峰电子信息有限公司 | Double-frequency cavity filter compatible to working frequencies of GPS and Beidou |
| CN105390778A (en) * | 2015-12-22 | 2016-03-09 | 江苏贝孚德通讯科技股份有限公司 | 13-14 open-type cross coupling structure |
-
2009
- 2009-01-13 CN CNU2009200385193U patent/CN201332130Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789536A (en) * | 2010-01-07 | 2010-07-28 | 东莞市苏普尔电子科技有限公司 | Multi-frequency combining method and combiner manufactured by implementing same |
| CN104319444A (en) * | 2014-10-31 | 2015-01-28 | 湖北三江航天险峰电子信息有限公司 | Double-frequency cavity filter compatible to working frequencies of GPS and Beidou |
| CN105390778A (en) * | 2015-12-22 | 2016-03-09 | 江苏贝孚德通讯科技股份有限公司 | 13-14 open-type cross coupling structure |
| CN105390778B (en) * | 2015-12-22 | 2019-02-01 | 江苏贝孚德通讯科技股份有限公司 | A kind of open cross coupling structure of 13-14 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20130113 |