CN2652064Y - Separated bi-directional base station power amplifier - Google Patents
Separated bi-directional base station power amplifier Download PDFInfo
- Publication number
- CN2652064Y CN2652064Y CNU2003201149824U CN200320114982U CN2652064Y CN 2652064 Y CN2652064 Y CN 2652064Y CN U2003201149824 U CNU2003201149824 U CN U2003201149824U CN 200320114982 U CN200320114982 U CN 200320114982U CN 2652064 Y CN2652064 Y CN 2652064Y
- Authority
- CN
- China
- Prior art keywords
- base station
- amplifying unit
- duplexer
- power amplifier
- port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a detachable bidirectional base station power amplifier, which comprises a downlink amplifying circuit and an uplink overhead amplifying unit. The downlink amplifying unit wherein is arranged in the base station. One port of the downlink amplifying unit is connected with an I/O port of the base station through a cable and the other port is connected with the uplink overhead amplifying circuit. The uplink overhead amplifying circuit is arranged on a tower top. The tower top is positioned with an antenna. One port of the uplink overhead amplifying circuit is connected with the antenna through a cable. The downlink amplifying circuit arranged indoors in the base station avoids being influenced by external environment, thus adapting to high-power operation. Besides, the uplink overhead amplifying circuit is positioned on the tower top, thus reducing loss during signal transmission and improving signal receiving sensitivity.
Description
[technical field]
The utility model is about a kind of two-way signaling amplifier, especially a kind of split type two-way base station power amplifier that is applicable to the mobile communication base station.
[background technology]
The employing of existing base station discloses CN1282452A number as Chinese patent, denomination of invention is a kind of masthead units that patent application disclosed of " self-contained masthead units of cellular communications network ", this masthead units comprises a power amplifier, duplexer and be a local power supply of power amplifier power supply, this power amplifier is used to amplify the output communication signal of receiving from the base station, this masthead units can also comprise a low noise amplifier, be used for amplifying the signal of communication of coming in, and the signal of communication of coming in after will amplifying is sent to the base station, and one or two amplifier amplifies the signal of base station and signal that the base station receives improves the coverage of base station by installing additional at cat head.Yet, owing to step on the top mounting condition and weather conditions limit, the size of its power and the volume of equipment are restricted, particularly during high power work, outside air temperature is very high, also have solar radiation, the reliability of amplifier is restricted, if power is done greatly, be placed in the machine room, because the technical limitations of low noise amplifier material, it is unrestrictedly low that its noise factor can not be done, the whole receiving sensitivity of loss meeting influence of the cable from the machine room to the antenna.Promptly because power amplifier and low noise amplifier place on machine room or the cat head simultaneously, so can not realize the requirement of high-power and high receiving sensitivity simultaneously.
[utility model content]
The purpose of this utility model is to provide a kind of split type two-way base station power amplifier that can have big amplifying power and preferable receiving sensitivity simultaneously.
The purpose of this utility model is achieved in that this split type two-way base station power amplifier comprises descending amplifying unit and up cat head amplifying unit, descending amplifying unit is connected with the port of base station, up cat head amplifying unit is connected with antenna, and the indoor descending amplifying unit that is positioned over the base station electrically connects by cable with the up cat head amplifying unit that is positioned over the cat head that antenna is housed.
Up cat head amplifying unit comprises a up low noise amplifier and a coupled duplexer, and two ports of this duplexer connect descending amplifying unit and antenna respectively, and up low noise amplifier connects two other port of this duplexer.
Compared with prior art, the utlity model has following advantage: 1) since descending amplifying unit be positioned over indoor, so can avoid being subjected to the influence of external environment, thereby can be suitable for high power work; Because up cat head amplifying unit is positioned on the cat head, thereby reduce loss in the signal transmission, and then improved the receiving sensitivity of signal.2) only be provided with a duplexer owing to up tower amplifier, it is four that six input/output ports of its more existing two duplexers have reduced, and the cavity minimizing, so also lowered the loss in the signal transmission.
[description of drawings]
Fig. 1 is the overall structure block diagram of the split type two-way base station power amplifier of the utility model.
Fig. 2 is the structured flowchart of the descending amplifying unit that links to each other with base station and up cat head amplifying unit of the split type two-way base station power amplifier of the utility model.
Fig. 3 is the structured flowchart of the up cat head amplifying unit that links to each other with descending amplifying unit and antenna of the split type two-way base station power amplifier of the utility model.
Fig. 4 is the schematic diagram of duplexer of the up cat head amplifying unit of the split type two-way base station power amplifier of the utility model.
[embodiment]
See also Fig. 1 to Fig. 4, the split type two-way base station of the utility model comprises a descending amplifying unit 2 and a up cat head amplifying unit 3, this descending amplifying unit 2 is connected with an output/input port of base station 1 by cable, a port of this up cat head amplifying unit 3 is connected with descending amplifying unit 2 by cable, and its another one port links to each other with antenna 4 by cable.
Descending amplifying unit 2 is placed in the machine room at 1 place, base station, it comprises a downlink power amplifier 24, first duplexer 22, the power supply of second duplexer 23 and a power supply, a port of first duplexer 22 is connected by the input/output end port of cable with base station 1, its another port is connected with a port of downlink power amplifier 24, a port of second duplexer 23 is connected with a port of up cat head amplifying unit 3 by cable, its another port is connected with another port of downlink power amplifier 24, and power supply provides power supply in order to give this descending amplifying unit 2.Between the input/output end port of first duplexer 22 and base station 1, be connected with microwave by-pass switch 21 respectively between the port of second duplexer 23 and up cat head amplifying unit 3, between first and second duplexer 22,23 and with downlink power amplifier 24, be arranged in parallel adjustable attenuator 25.When breaking down or have a power failure, microwave by-pass switch 21 can allow signal directly 1 lead to up cat head amplifying unit 3 from the base station.When descending amplifying unit 2 operate as normal, first duplexer 22 receives transmitting of base station 1, downlink power amplifier 24 is amplified this and is transmitted signals to the degree that is fit to broadcasting, and the signal after this amplification outputs to second duplexer 23, is transported to up cat head amplifying unit 3 then.Adjustable attenuator 25 is used to regulate the gain of upward signal, and regulates the influence of up cat head amplifying unit 3 backs to base station 1 up receptivity is installed.In addition, setting is safeguarded, in this descending amplifying unit 2, monitoring unit can also be set for the ease of using and making things convenient for.
Up cat head amplifying unit 3 is positioned on the cat head that antenna 4 is installed, comprise a up low noise amplifier 32 and a duplexer 31, the power supply of this up low noise amplifier 32 is to come from descending amplifying unit 2 feedbacks by the cable that is connected between descending amplifying unit 2 and the up masthead units 3, port of duplexer 31 and descending power amplifying unit 2 are connected by cable, its another port is connected with antenna 4 by cable, and this up low noise amplifier 32 connects two other port of this duplexer 31.This duplexer 31 is by synthetic one of two existing duplexers, because each existing duplexer has two cavitys, get final product then only comprising three cavitys after its merging one, and with two existing duplexers totally six input/output ports reduce to four ports, thereby reduced the power loss of signal in transmission.This duplexer 31 has four input/output ports, be respectively two mixed signal input/output ports and two upward signal input/output ports, up low noise amplifier 32 connects these two upward signal input/output ports, and two mixed signal input/output ports connect descending amplifying unit 2 and antenna 4 respectively.
The descending amplifying unit 2 of this split type two-way base station power amplifier and up cat head amplifying unit 3 are placed apart, because the machine room that descending amplifying unit 2 is positioned over base station 1 is indoor, so can avoid being subjected to the influence of external environment, thereby can be suitable for high power work; Because up cat head amplifying unit 3 is positioned on the cat head, thereby reduce loss in the signal transmission, and then improved the receiving sensitivity of signal.
Claims (6)
1. split type two-way base station power amplifier, comprise descending amplifying unit and up cat head amplifying unit, descending amplifying unit is connected with the port of base station, up cat head amplifying unit is connected with antenna, it is characterized in that: the indoor descending amplifying unit that is positioned over the base station electrically connects by cable with the up cat head amplifying unit that is positioned over the cat head that antenna is housed.
2. split type two-way base station power amplifier as claimed in claim 1, it is characterized in that: described up cat head amplifying unit comprises a up low noise amplifier and a coupled duplexer, two ports of this duplexer connect descending amplifying unit and antenna respectively, and up low noise amplifier connects two other port of this duplexer.
3. split type two-way base station power amplifier as claimed in claim 1 or 2, it is characterized in that: described descending amplifying unit comprises downlink power amplifier, first duplexer, second duplexer and power supply, a port of this first duplexer connects the base station, another port connects a port of downlink power amplifier, a port of second duplexer connects the another port of downlink power amplifier, another port of this second duplexer connects up cat head amplifying unit, and power supply is used for to this unit power supply.
4. split type two-way base station power amplifier as claimed in claim 3, it is characterized in that: described descending amplifying unit also comprises adjustable attenuator, and this adjustable attenuator connects this first and second duplexer, and it is used to regulate the gain of upward signal.
5. split type two-way base station power amplifier as claimed in claim 3, it is characterized in that: this descending amplifying unit also comprises by-pass switch, this switch connects the base station and first duplexer, this another switch connects second duplexer and up cat head amplifying unit, and this two by-pass switch directly electrically connects.
6. split type two-way base station power amplifier as claimed in claim 5, it is characterized in that: described by-pass switch is a microwave switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201149824U CN2652064Y (en) | 2003-10-27 | 2003-10-27 | Separated bi-directional base station power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201149824U CN2652064Y (en) | 2003-10-27 | 2003-10-27 | Separated bi-directional base station power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2652064Y true CN2652064Y (en) | 2004-10-27 |
Family
ID=34345671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201149824U Expired - Fee Related CN2652064Y (en) | 2003-10-27 | 2003-10-27 | Separated bi-directional base station power amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2652064Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346579C (en) * | 2005-11-18 | 2007-10-31 | 杭州天寅无线通信有限公司 | Double mode transmission mode for antenna feed line signal |
| CN100418384C (en) * | 2005-11-30 | 2008-09-10 | 李学军 | Multi-carrier base station amplifier |
| CN101208871B (en) * | 2005-06-24 | 2012-09-05 | 思科技术公司 | Multiplexing method and system for time division duplex communication systems |
-
2003
- 2003-10-27 CN CNU2003201149824U patent/CN2652064Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101208871B (en) * | 2005-06-24 | 2012-09-05 | 思科技术公司 | Multiplexing method and system for time division duplex communication systems |
| CN100346579C (en) * | 2005-11-18 | 2007-10-31 | 杭州天寅无线通信有限公司 | Double mode transmission mode for antenna feed line signal |
| CN100418384C (en) * | 2005-11-30 | 2008-09-10 | 李学军 | Multi-carrier base station amplifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |