CN201436696U - CDMA+GSM+3G/DCS1800 dual-frequency mixer - Google Patents
CDMA+GSM+3G/DCS1800 dual-frequency mixer Download PDFInfo
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- CN201436696U CN201436696U CN2009200458461U CN200920045846U CN201436696U CN 201436696 U CN201436696 U CN 201436696U CN 2009200458461 U CN2009200458461 U CN 2009200458461U CN 200920045846 U CN200920045846 U CN 200920045846U CN 201436696 U CN201436696 U CN 201436696U
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Abstract
The utility model discloses a CDMA+GSM+3G/DCS1800 dual-frequency mixer, which uses resonant cavity form, designs cavity filters which are suitable for CDMA+GSM, 3G and DCS1800 respectively filter network signal by the filter basic principle on a same cavity, uses a comb filter technique structure, and has no extra sensitive cross coupling device and capacitive cross coupling device, wherein the cavity is made of aluminium material and the internal surface of the cavity is acted with conduction oxidation technology process without silver plating process, which greatly saving cost in condition without inflecting the technique index. By the technology process, the mixer is convenient for assembling and debugging, thereby enhancing production efficiency, and the mixer has advantages of high outband rejection of technical index, low insertion loss and small volume, greatly enhances performance of whole system, enhances reliability of the network, simplifies multi-system shrouding, and is more suitable for engineering implement. The mixer becomes communication network optimizing equipment with small volume, light weight, low cost and strong practice property.
Description
Technical field
The utility model relates to the network optimization product in a kind of electronic information and the mobile communication technology field, specifically is a kind of CDMA+GSM+3G/DCS1800 dual-frequency channel merger.
Background technology
GSM full name is: Global System for Mobile Communications, Chinese implication is a global system for mobile communications, is commonly called as " Global Link ", is a kind of mobile communication technology standard that originates from Europe, is second generation mobile communication technology.
CDMA full name is: Code-Division Multiple Access, Chinese implication is a code division multiple access, is a kind of advanced person's of occurring in the digital mobile communication process in recent years radio spread spectrum communication technology.
3G full name is: 3rd Generation, Chinese implication is for just being meant third generation digital communication.With the main distinction in preceding two generations are liftings on the speed of transmission voice and data, it can realize seamless roam in the world better, and handle multiple media formats such as image, music, video flowing, multiple information services such as comprising web page browsing, videoconference, ecommerce is provided, also will considers favorable compatibility simultaneously with existing second-generation system.For this service is provided, wireless network must can be supported different data transmission baudss, that is to say the transmission speed that can support 2Mbps (megabit/per second), 384kbps (kilobit/per second) at least and 144kbps in the environment of indoor, outdoor and driving respectively.
DCS1800 full name is: DigitalCellularSystemat1800MHz, the Chinese implication is 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 top order 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 each system's co-space feedback system, dual-frequency channel merger is indispensable device.
Summary of the invention
The utility model provides a kind of with DCS1800 and GSM, CDMS and the dual-frequency channel merger of 3G grid traffic filter design on same cavity in order to solve the problem that DCS1800 adds GSM, CDMS and 3G system co-space feedback system.
CDMA+GSM+3G/DCS1800 dual-frequency channel merger described in the utility model, comprise the cover plate on cavity and the cavity, inside cavity is provided with three filters, be respectively the CDMA+GSM filter, 3G filter and DCS1800 filter, three joint DCS1800 ports, CDMA+GSM and 3G port, public port is separately positioned on the cavity outside, wherein the DCS1800 port is connected with the DCS1800 filter input end, CDMA+GSM and 3G port are to be connected with the 3G filter input end by the CDMA+GSM filter, and the partition wall of two filters in this junction has groove and realize coupling.The DCS1800 port is connected with the DCS1800 filter input end, and public port is connected with the 3G filter output with the CDMA+GSM filter jointly with the DCS1800 filter output, and the partition wall of three filters in this junction has groove realization coupling.
The DCS1800 filter comprises 5 resonant cavitys that link to each other successively, and a resonant rod has been installed in the center of each resonant cavity, and first resonant rod is connected with DCS1800 port and public port by coupled-wires respectively with last resonant rod.Coupled-wires is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.
The CDMA+GSM filter is a big groove, five resonant rods have been installed, first resonant rod is connected with CDMA+GSM, 3G port and public port by coupled-wires respectively with last resonant rod, and coupled-wires is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.
The 3G filter comprises 7 resonant cavitys that link to each other successively, a resonant rod has been installed in the center of each resonant cavity, first resonant rod is connected with CDMA+GSM, 3G port and public port by coupled-wires respectively with last resonant rod, and coupled-wires is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.
The utility model adopts the resonant cavity form, utilization filter basic principle will be applicable to that respectively the cavity body filter design of CDMA+GSM, 3G and DCS1800 FL-network signal is on same cavity, adopt the comb filter structure, there are not extra perceptual cross-couplings device and capacitive cross-couplings device, and be processed into cavity and use the electric conductive oxidation technical finesse on the inside cavity surface with aluminum, do not need electroplate, under the prerequisite of influence technique index not, provide cost savings greatly.Adopt above technology to make it easy to assembling and setting, improve speed of production, and the technical indicator band suppresses high outward, Insertion Loss is little, volume is little, the performance of raising 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 structural representation after the utility model cover plate is opened;
Fig. 2 is the structural representation of the utility model side, and wherein a is a left view, and b is right profile, and c is a right view.
Embodiment
The utility model adopts lumped parameter and distributed constant principle, according to technical requirement, in conjunction with Chebyshev's type Design of Bandpass principle.See Fig. 1-2.The utility model comprises cavity 1 (1), cover plate 2 (1), resonant rod 7A (5), resonant rod 8B (5), resonant rod 9C (7), tuning screw 6 (33), mounting cover plate bolt (54), resonant rod screw (17) is installed, joint (3), mounting bracket 16 (2), inside cavity comprise that three filters are respectively CDMA+GSM filter, 3G filter and DCS1800 filter and form.
It is respectively DCS1800 port 3 that whole mixer has three joints, CDMA+GSM, 3G port 4, public port 5; DCS1800 port 3 connects public port 5 by coupled-wires 10 again through first resonant cavity, 11 to the 5th resonant cavitys 15; CDMA+GSM and 3G port 4 are pickled with grains or in wine 21 by coupled-wires 8 accesses are logical, through the 6th resonant cavity the 31 to the 12 resonant cavity 37, connect and access public port 5 by coupled-wires 10 again.
Inside cavity comprises that three filters are respectively DCS1800, CDMA+GSM and the 3G filter is formed.
The DCS1800 filter has 5 resonant cavity 11-15, a resonant rod 7A has been installed in the center of each resonant cavity, each resonant rod 7A connects with screw 6, first is connected by coupled-wires 10 with joint with last resonant rod, coupled-wires 10 is that the silver-jacketed wire with ф 1.5 is fixed on resonant rod and the joint with scolding tin, and coupling window is realized the coupling amounts by two adjacent partition walls flutings of resonant rod.
The CDMA+GSM filter is a big groove 21, five resonant rod 8B have been installed, first resonant rod and last resonant rod are connected by coupled-wires 10 and CDMA+GSM and 3G port 4 and public port 5 respectively, coupled-wires 10 is that the silver-jacketed wire with ф 1.5 is fixed on resonant rod and the joint with scolding tin, and how many coupling amounts realizes by two resonant rod neighbor distance.
The 3G filter comprises 7 resonant cavity 31-37 that link to each other successively, a resonant rod 9C has been installed in the center of each resonant cavity, first resonant rod is connected with CDMA+GSM, 3G port 4 and public port 5 by coupled-wires 10 respectively with last resonant rod, coupled-wires 10 is that the silver-jacketed wire with ф 1.5 is fixed on resonant rod and the joint with scolding tin, and coupling window is realized the coupling amounts by two adjacent partition walls flutings of resonant rod.
There are two mounting brackets 16 on the utility model cavity 1 outside both sides, the convenient installation.After the product Installation and Debugging are finished, handle through stoving black varnish, outward appearance is generous durable again.
Claims (5)
1. CDMA+GSM+3G/DCS1800 dual-frequency channel merger, it is characterized in that: it comprises the cover plate (2) on cavity (1) and the cavity (1), cavity (1) inside is provided with three filters, be respectively DCS1800, CDMA+GSM and 3G filter, three joint DCS1800 ports (3), CDMA+GSM and 3G port (4), public port (5) are separately positioned on cavity (1) outside, and wherein DCS1800 port (3), CDMA+GSM and 3G port (4) are connected with the filter input end of DCS1800 filter input end with CDMA+GSM and 3G respectively; Public port (5) is connected with the filter output of 3G with CDMA+GSM with the DCS1800 filter output, and the partition wall of two filters in this junction has groove realization coupling.
2. CDMA+GSM+3G/DCS1800 dual-frequency channel merger according to claim 1, it is characterized in that: the DCS1800 filter comprises 5 resonant cavitys (11-15) that link to each other successively, a resonant rod 7A has been installed in the center of each resonant cavity (11-15), and first resonant rod is connected with DCS1800 port (3) and public port (5) by coupled-wires (10) respectively with last resonant rod.
3. CDMA+GSM+3G/DCS1800 dual-frequency channel merger according to claim 1 and 2, it is characterized in that: the CDMA+GSM filter comprises one logical poor (21), order has been installed five resonant rod 8B in logical poor (21), and first resonant rod is connected with CDMA+GSM, 3G port (4) and public port (5) by coupled-wires (10) respectively with last resonant rod.
4. CDMA+GSM+3G/DCS1800 dual-frequency channel merger according to claim 1 and 2, it is characterized in that: the 3G filter comprises 7 resonant cavitys (31-37) that link to each other successively, a resonant rod 9C has been installed in the center of each resonant cavity (31-37), and first resonant rod is connected with CDMA+GSM, 3G port (4) and public port (5) by coupled-wires (10) respectively with last resonant rod.
5. CDMA+GSM+3G/DCS1800 dual-frequency channel merger according to claim 1 and 2 is characterized in that: coupled-wires is that silver-jacketed wire is fixed on resonant rod and the joint with scolding tin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200458461U CN201436696U (en) | 2009-05-14 | 2009-05-14 | CDMA+GSM+3G/DCS1800 dual-frequency mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200458461U CN201436696U (en) | 2009-05-14 | 2009-05-14 | CDMA+GSM+3G/DCS1800 dual-frequency mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201436696U true CN201436696U (en) | 2010-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200458461U Expired - Fee Related CN201436696U (en) | 2009-05-14 | 2009-05-14 | CDMA+GSM+3G/DCS1800 dual-frequency mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201436696U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623778A (en) * | 2012-03-20 | 2012-08-01 | 中国计量学院 | Cavity combiner with double-layered communal port |
| 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 |
-
2009
- 2009-05-14 CN CN2009200458461U patent/CN201436696U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623778A (en) * | 2012-03-20 | 2012-08-01 | 中国计量学院 | Cavity combiner with double-layered communal port |
| CN102623778B (en) * | 2012-03-20 | 2014-07-02 | 中国计量学院 | Cavity combiner with double-layered communal port |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100407 Termination date: 20120514 |