CN2800677Y - Bypass apparatus for duplex tower top amplifier of mobile communication system - Google Patents
Bypass apparatus for duplex tower top amplifier of mobile communication system Download PDFInfo
- Publication number
- CN2800677Y CN2800677Y CNU2005200006038U CN200520000603U CN2800677Y CN 2800677 Y CN2800677 Y CN 2800677Y CN U2005200006038 U CNU2005200006038 U CN U2005200006038U CN 200520000603 U CN200520000603 U CN 200520000603U CN 2800677 Y CN2800677 Y CN 2800677Y
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- bypass
- duplexer
- port
- switch
- tower top
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Abstract
The utility model relates to a bypass device for duplex tower top amplifiers in mobile communication. The utility model is composed of an uplink and downlink common bypass switch (08/10) and a bypass cable thereof (11), a DT coupler (07) and a circulator (09) which are integrated into one module, wherein the bypass function of the utility model is arranged in front of a duplexer; the bypass switch (08/10) and the bypass cable thereof (11) are used to replace the uplink and downlink common bypass switch and the bypass cable thereof and are respectively connected with an antenna end, a duplexer at the antenna end, a filter, a power amplifier input end and a base station end of a tower top amplifier main body; the downlink signals of the utility model are fed to the antenna via the DT coupler (07), the switch (08), the circulator (09), the power amplifier and the duplexer of the tower top amplifier main body and the switch (10), and the uplink signals of the utility model are fed to a base station via the switch (10), the duplexer, a low noise amplifier, the filter of the tower top amplifier main body, the circulator (09), the switch (08) and the DT coupler (07). When the tower top amplifier does not function, the bypass cable (11) provides a bidirectional conduction loop for signals to ensure that the communication is uninterrupted. The utility model can reduce bypass loss, simplify the integral structure and lower the production cost, and the whole machine is easy to debug.
Description
Affiliated technical field
The utility model relates to a kind of duplex tower top amplifier that is used for mobile communication system, is specifically related to a kind of shunting device of duplex tower top amplifier.
Background technology
In current mobile communication system, generally adopt tower amplifier (being called for short tower puts) technology, put with duplexing tower comprising Dan Gongta and put.Figure 1 shows that the principle schematic that typical duplexing tower is put.From the down link signal of base station or repeater end through duplexer 01, improve its power output by PA03 after, present to antenna through duplexer 06, to enlarge the coverage of base station or repeater; From the uplink signal of antenna end through duplexer 06, undertaken presenting to base station or repeater through duplexer 01, to improve the electric-level gain of its up link after low noise amplifies by LNA05, reduce the noise factor of receiving system, thereby improve the receiving sensitivity of base station or repeater.Wherein, all towers are put all must possess special signal bypass functionality, provides the conducting loop for signal of communication when tower is emitted existing fault or the power down of this machine, uninterrupted to guarantee communication; In duplexing tower is put, also must possess two-way bypass functionality, promptly up bypass functionality and descending bypass functionality, uninterrupted to guarantee the two-way communication signal.As shown in Figure 1, the two-way bypass functionality that traditional duplexing tower is put is set at after the duplexer, adopts separate mode, and descending by-pass switch 02 and bypass cable thereof and up by-pass switch 04 and bypass cable thereof are set respectively in down link and up link.Duplexing tower under this mode is put many drawbacks such as certainly will having shunt loss is big, production cost is high, complicated integral structure, machine debugging difficulty.
Summary of the invention
The purpose of this utility model provides the shunting device that a kind of improved duplexing tower is put, and it can overcome the existing many drawbacks of above-mentioned traditional approach effectively.
The utility model reaches DT coupler 07, circulator 09 formation by the shared by-pass switch 08/10 of up-downgoing, the shared bypass cable 11 of up-downgoing.Its shared by-pass switch 08/10 and shared bypass cable 11 are arranged on before base station end duplexer and the antenna end duplexer by unified, and substitute base station end duplexer with circulator 09.Between them annexation be: the S of switch 08 end is connected with the output of DT coupler 07, and 1. it hold with the common port of circulator 09 and be connected, and 2. it hold with base station one end of shared bypass cable 11 and be connected; The S end of switch 10 is connected with antenna end, and 1. it hold with the common port of antenna end duplexer and be connected, and 2. it hold with antenna one end of shared bypass cable 11 and be connected.Substitute the descending by-pass switch 02 and the up by-pass switch 04 of traditional approach with the shared by-pass switch 08/10 of up-downgoing; Substitute the cable of the bypass of the bypass cable of descending by-pass switch of traditional approachs and up by-pass switch with the shared bypass cable of up-downgoing 11; For further improving voltage standing wave ratio, substitute base station end duplexer with circulator; And the employing integrated technology, with the shared by-pass switch 08/10 of its up-downgoing, the shared bypass cable 11 of up-downgoing, and DT coupler 07, circulator 09 are integrated into a module.Use as the typical case, this shunting device module sets up 6 ports separately.Wherein, port one is connected with the duplexer of antenna end; Port 2 is connected with antenna end; Port 3 is the Modem port of DT coupler, in order to remote monitoring; Port 4 is connected with the base station end; Port 5 is connected with the filter of LNA output; Port 6 is connected with the power amplifier input.
The course of work of the present utility model is: its down link signal is after the DT of this shunting device coupler 07, by-pass switch 08, circulator 09 send tower to and put the power amplifier module of main body and carry out power amplification, send the by-pass switch 10 of this shunting device to by its duplexer, present then to antenna; Its uplink signal is through the by-pass switch 10 of this shunting device, send tower to and put the duplexer of main body, after its LNA module is carried out the low noise amplification, send the circulator 09 of this shunting device to through its filter, through its by-pass switch 08, DT coupler 07 is presented to base station or repeater.When tower is emitted existing fault or the power down of this machine, provide the two-way admittance loop by the shared bypass cable 11 of up-downgoing for signal, uninterrupted to guarantee communication.
The utility model is owing to be arranged on bypass functionality before the duplexer, so its uplink downlink can a shared cover by-pass switch and a bypass cable thereof, and shunt loss is reduced; Because its each parts are integrated into a module, and the intermodule line is reduced, overall structure is simplified.In view of the above, can obviously improve electric property index and the mechanical performance index that duplexing tower is put; And the unification that helps complete machine is debugged; Material cost and production cost also can obviously be reduced, and its outfit of equipment becomes instinct to reduce about 500 yuans.
Brief Description Of Drawings
Fig. 1 is the schematic block diagram of duplex tower top amplifier under the traditional approach and by-pass switch thereof;
Fig. 2 is the formation block diagram of the shunting device of duplex tower top amplifier provided by the utility model;
Fig. 3 is the internal circuit configuration and the port figure thereof of the shunting device of duplex tower top amplifier provided by the utility model;
Its description of reference numerals is as follows:
01,06: duplexer; 02: descending by-pass switch; 03:PA; 04: up by-pass switch; 05:LNA; The 07:DT coupler; 08/10: the shared by-pass switch of up-downgoing; 09: circulator; 11: the shared bypass cable of up-downgoing.
Embodiment
Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail.
Shunting device referring to duplex tower top amplifier provided by the utility model shown in Figure 2 constitutes block diagram.This device reaches DT coupler 07, circulator 09 formation by the shared by-pass switch 08/10 of up-downgoing, the shared bypass cable 11 of up-downgoing.Its bypass functionality is set at before the duplexer; Substitute the descending by-pass switch 02 and the up by-pass switch 04 of traditional approach with the shared by-pass switch 08/10 of up-downgoing; Substitute the descending bypass cable and the up bypass cable of traditional approach with the shared bypass cable 11 of up-downgoing; For further improving voltage standing wave ratio, substitute base station end duplexer with circulator 09.This device adopts integrated technology, and with the shared by-pass switch 08/10 of its up-downgoing, the shared bypass cable 11 of up-downgoing, and DT coupler 07, circulator 09 are integrated into a module.Its course of work is: down link signal is after the DT of this shunting device coupler 07, by-pass switch 08, circulator 09 send tower to and put the power amplifier module of main body and carry out power amplification, send the by-pass switch 10 of this shunting device to by its duplexer, present then to antenna; Uplink signal is through the by-pass switch 10 of this shunting device, send tower to and put the duplexer of main body, after its LNA module is carried out the low noise amplification, send the circulator 09 of this shunting device to through its filter, through its by-pass switch 08, DT coupler 07 is presented to base station or repeater.When tower is emitted existing fault or the power down of this machine, provide the two-way admittance loop by the shared bypass cable 11 of up-downgoing for signal, uninterrupted to guarantee communication.
Internal circuit configuration and port figure thereof referring to the shunting device of duplex tower top amplifier provided by the utility model shown in Figure 3.Use as the typical case, this shunting device module sets up 6 ports separately.Wherein, port one is connected with the duplexer of antenna end; Port 2 is connected with antenna end; Port 3 is the Modem port of DT coupler, in order to remote monitoring; Port 4 is connected with the base station end; Port 5 is connected with the filter of LNA output; Port 6 is connected with the power amplifier input.
The port performance index of the shunting device of duplex tower top amplifier provided by the utility model under the typical test strip part following (referring to subordinate list).Can find out obviously that from this table the shunting device of duplex tower top amplifier provided by the utility model will have the little and low remarkable technical characterstic of insertion loss of port standing-wave ratio in actual applications.
Port performance index subordinate list
| Test event | Test condition | Index | Unit | Remarks | |
| The | 2,4 port Insertion Loss | 947MHz | ≤0.6 | | |
| 2 → 4 port standing waves | 880～960MHz | ≤1.2 | |||
| 4 → 2 port standing waves | 880～960MHz | ≤1.2 | |||
| The working | 1 → 2 port Insertion Loss | 947MHz | ≤0.3 | dB | |
| 4 → 6 port Insertion Loss | 947MHz | ≤1.0 | dB | ||
| 5 → 4 port Insertion Loss | 900MHz | ≤1.0 | dB | ||
| 6, the 3 port degrees of coupling | 947MHz | -80～-75 | dB | 4 ports are imported 6 ports and are connect | |
| 1 → 2 port standing wave | 925～960MHz | ≤1.2 | |||
| 2 → 1 port standing waves | 880～915MHz | ≤1.2 | |||
| 4 → 6 port standing waves | 925～960MHz | ≤1.2 | 5 ports connect load | ||
Claims (3)
1, a kind of shunting device that is used for the duplex tower top amplifier of mobile communication system, by by-pass switch (08/10), bypass cable (11), reach DT coupler (07), circulator (09) formation, it is characterized in that: its shared by-pass switch (08/10) and shared bypass cable (11) are unified to be arranged on before base station end duplexer and the antenna end duplexer, and substitute base station end duplexer with circulator (09); Between them annexation be: the S of switch (08) end is connected with the output of DT coupler (07), and 1. it hold with the common port of circulator (09) and be connected, and 2. it hold with base station one end of shared bypass cable (11) and be connected; The S end of switch (10) is connected with antenna end, and 1. it hold with the common port of antenna end duplexer and be connected, and 2. it hold with antenna one end of shared bypass cable (11) and be connected.
2, the shunting device that is used for the duplex tower top amplifier of mobile communication system according to claim 1, it is characterized in that: the shared by-pass switch of its up-downgoing (08/10), the shared bypass cable of up-downgoing (11), and DT coupler (07), circulator (09) are unified to be integrated on the public module.
3, the shunting device that is used for the duplex tower top amplifier of mobile communication system according to claim 1, it is characterized in that: the typical case of this shunting device module is assembled into: set up 6 ports separately, wherein, port one is connected with the duplexer of antenna end; Port 2 is connected with antenna end; Port 3 is the Modem port of DT coupler; Port 4 is connected with the base station end; Port 5 is connected with the filter of LNA output; Port 6 is connected with the power amplifier input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200006038U CN2800677Y (en) | 2005-01-10 | 2005-01-10 | Bypass apparatus for duplex tower top amplifier of mobile communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200006038U CN2800677Y (en) | 2005-01-10 | 2005-01-10 | Bypass apparatus for duplex tower top amplifier of mobile communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2800677Y true CN2800677Y (en) | 2006-07-26 |
Family
ID=36843158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200006038U Expired - Fee Related CN2800677Y (en) | 2005-01-10 | 2005-01-10 | Bypass apparatus for duplex tower top amplifier of mobile communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2800677Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008014704A1 (en) * | 2006-07-28 | 2008-02-07 | Huawei Technologies Co., Ltd. | Response method for operating of tower mounted amplifier's gain and the tower mounted amplifier |
| US9602145B2 (en) | 2011-02-07 | 2017-03-21 | Qualcomm Incorporated | Insertion loss improvement in a multi-band device |
| CN108123725A (en) * | 2016-11-29 | 2018-06-05 | 西安华为技术有限公司 | The method of signal transmission in tower amplifier and tower amplifier |
-
2005
- 2005-01-10 CN CNU2005200006038U patent/CN2800677Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008014704A1 (en) * | 2006-07-28 | 2008-02-07 | Huawei Technologies Co., Ltd. | Response method for operating of tower mounted amplifier's gain and the tower mounted amplifier |
| CN101114855B (en) * | 2006-07-28 | 2011-07-20 | 华为技术有限公司 | Response method to tower amplifier gain operation |
| US9602145B2 (en) | 2011-02-07 | 2017-03-21 | Qualcomm Incorporated | Insertion loss improvement in a multi-band device |
| CN108123725A (en) * | 2016-11-29 | 2018-06-05 | 西安华为技术有限公司 | The method of signal transmission in tower amplifier and tower amplifier |
| CN108123725B (en) * | 2016-11-29 | 2020-06-16 | 西安华为技术有限公司 | Tower amplifier and method for signal transmission in tower amplifier |
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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: 20060726 Termination date: 20130110 |