CN204168249U - For the standby system of power amplifier in MDAS system - Google Patents
For the standby system of power amplifier in MDAS system Download PDFInfo
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- CN204168249U CN204168249U CN201420645733.6U CN201420645733U CN204168249U CN 204168249 U CN204168249 U CN 204168249U CN 201420645733 U CN201420645733 U CN 201420645733U CN 204168249 U CN204168249 U CN 204168249U
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Abstract
The utility model discloses a kind of standby system for power amplifier in MDAS system, comprises the 2G power amplifier for amplifying 2G input signal V2 and the 3G power amplifier for amplifying 3G input signal V3; Also comprise one first mixed electrical bridge, a 4G power amplifier and the 2nd 4G power amplifier, the input of described first mixed electrical bridge receives a 4G input signal V41 to be amplified and the 2nd 4G input signal V42,2 outputs of described first mixed electrical bridge are connected respectively to the input of a 4G power amplifier and the input of the 2nd 4G power amplifier, the output of this 4G power amplifier and the output of the 2nd 4G power amplifier are connected to the input of one second mixed electrical bridge, and the output of this second mixed electrical bridge is connected to a 4G antenna.The utility model is after a road power amplifier damages, and another road power amplifier still can ensure that signal transmits normally, and when the complexity of system is almost constant, the stability of whole system and reliability improve greatly.
Description
Technical field
The utility model relates to a kind of MDAS system, particularly relates to a kind of standby system for power amplifier in MDAS system.
Background technology
In existing MDAS communication system, there is the 4G power amplifier of two-way, as shown below, this two-way works independently, not backup, and the stability of such communication system can not effectively ensure, any one power amplifier damages and communication all may be caused normally not carry out, and the stability of communication and reliability are not high.
Summary of the invention
The utility model provides a kind of standby system for power amplifier in MDAS system, this standby system for power amplifier in MDAS system is after a road power amplifier damages, another road power amplifier still can ensure that signal transmits normally, and when the complexity of system is almost constant, the stability of whole system and reliability improve greatly.
For achieving the above object, the technical solution adopted in the utility model is: a kind of standby system for power amplifier in MDAS system, comprise the 2G power amplifier for amplifying 2G input signal V2 and the 3G power amplifier for amplifying 3G input signal V3, the output of described 2G power amplifier is connected respectively to 2G antenna, and the output of described 3G power amplifier is connected to 3G antenna; Also comprise one first mixed electrical bridge, a 4G power amplifier and the 2nd 4G power amplifier, the input of described first mixed electrical bridge receives a 4G input signal V41 to be amplified and the 2nd 4G input signal V42,2 outputs of described first mixed electrical bridge are connected respectively to the input of a 4G power amplifier and the input of the 2nd 4G power amplifier, the output of this 4G power amplifier and the output of the 2nd 4G power amplifier are connected to the input of one second mixed electrical bridge, and the output of this second mixed electrical bridge is connected to a 4G antenna.
In technique scheme, further improvement opportunity scheme is as follows:
In such scheme, the gain of a described 4G power amplifier is equal with the gain of the 2nd 4G power amplifier.
Because technique scheme is used, the utility model compared with prior art has following advantages:
The utility model is used for the standby system of power amplifier in MDAS system, and after a road power amplifier damages, another road power amplifier still can ensure that signal transmits normally, and when the complexity of system is almost constant, stability and the reliability of whole system improve greatly; Secondly, when two kinds of standard operating frequencies are close, all dropped in the operating frequency range of power amplifier, can also allow between the power amplifier of different systems and back up mutually between two, such as, just can back up mutually between two between 3G power amplifier and two 4G power amplifiers.
Accompanying drawing explanation
Accompanying drawing 1 is existing MDAS communication power amplification system structural representation;
Accompanying drawing 2 is for the utility model is for the standby system structural representation of power amplifier in MDAS system.
In above accompanying drawing: 1,2G power amplifier; 2,3G power amplifier; 3,2G antenna; 4,3G antenna; 5, the first mixed electrical bridge; 6, a 4G power amplifier; 7, the 2nd 4G power amplifier; 8, the second mixed electrical bridge; 9,4G antenna.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment: a kind of standby system for power amplifier in MDAS system, comprise the 2G power amplifier 1 for amplifying 2G input signal V2 and the 3G power amplifier 2 for amplifying 3G input signal V3, the output of described 2G power amplifier 1 is connected respectively to 2G antenna 3, and the output of described 3G power amplifier is connected to 3G antenna 4, it is characterized in that: also comprise one first mixed electrical bridge 5, one 4G power amplifier 6 and the 2nd 4G power amplifier 7, the input of described first mixed electrical bridge 5 receives a 4G input signal V41 to be amplified and the 2nd 4G input signal V42, 2 outputs of described first mixed electrical bridge 5 are connected respectively to the input of a 4G power amplifier 6 and the input of the 2nd 4G power amplifier 7, the output of this 4G power amplifier 6 and the output of the 2nd 4G power amplifier 7 are connected to the input of one second mixed electrical bridge 8, the output of this second mixed electrical bridge 8 is connected to a 4G antenna 9.
The gain of an above-mentioned 4G power amplifier 6 is equal with the gain of the 2nd 4G power amplifier 7.
The present embodiment course of work is specific as follows: in native system, the input signal of 2G and 3G module section is respectively V2 and V3, exports after being amplified by power amplifier.
The signal of 4G module section input is V41, V42, two paths of signals mixing enters two power amplifier A41 and A42 respectively after power splitter PD4, the output signal of power amplifier enters hybrid network R4, in hybrid network, signal after A41 and A42 amplifies mixes, in the two-way of hybrid network exports, all comprise the signal after the amplification of A41 and A42, like this, if when there being a road power amplifier to damage in A41 and A42, another road power amplifier can normally transmit all signals, and the loss of signal can not be produced, achieve between two power amplifiers and backup each other.Work independently with original two 4G modules, do not back up mutually and compare, allow between two 4G power amplifiers and backup each other, the stability of whole system and reliability are improved greatly, and the complexity of system is almost with original consistent.
When adopting the above-mentioned standby system for power amplifier in MDAS system, after a road power amplifier damages, another road power amplifier still can ensure that signal transmits normally, and when the complexity of system is almost constant, the stability of whole system and reliability improve greatly; Secondly, when two kinds of standard operating frequencies are close, all dropped in the operating frequency range of power amplifier, can also allow between the power amplifier of different systems and back up mutually between two, such as, just can back up mutually between two between 3G power amplifier and two 4G power amplifiers.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection range of the present utility model.
Claims (2)
1. the standby system for power amplifier in MDAS system, comprise the 2G power amplifier (1) for amplifying 2G input signal V2 and the 3G power amplifier (2) for amplifying 3G input signal V3, the output of described 2G power amplifier (1) is connected respectively to 2G antenna (3), and the output of described 3G power amplifier is connected to 3G antenna (4), it is characterized in that: also comprise one first mixed electrical bridge (5), one 4G power amplifier (6) and the 2nd 4G power amplifier (7), the input of described first mixed electrical bridge (5) receives a 4G input signal V41 to be amplified and the 2nd 4G input signal V42, 2 outputs of described first mixed electrical bridge (5) are connected respectively to the input of a 4G power amplifier (6) and the input of the 2nd 4G power amplifier (7), the output of this 4G power amplifier (6) and the output of the 2nd 4G power amplifier (7) are connected to the input of one second mixed electrical bridge (8), the output of this second mixed electrical bridge (8) is connected to a 4G antenna (9).
2. the standby system for power amplifier in MDAS system according to claim 1, is characterized in that: the gain of a described 4G power amplifier (6) is equal with the gain of the 2nd 4G power amplifier (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420645733.6U CN204168249U (en) | 2014-10-31 | 2014-10-31 | For the standby system of power amplifier in MDAS system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420645733.6U CN204168249U (en) | 2014-10-31 | 2014-10-31 | For the standby system of power amplifier in MDAS system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204168249U true CN204168249U (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420645733.6U Active CN204168249U (en) | 2014-10-31 | 2014-10-31 | For the standby system of power amplifier in MDAS system |
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| Country | Link |
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| CN (1) | CN204168249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111756396A (en) * | 2020-07-15 | 2020-10-09 | 维沃移动通信有限公司 | Radio frequency circuit, electronic device, and control method |
-
2014
- 2014-10-31 CN CN201420645733.6U patent/CN204168249U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111756396A (en) * | 2020-07-15 | 2020-10-09 | 维沃移动通信有限公司 | Radio frequency circuit, electronic device, and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200102 Address after: 215000 B12, No. 15, Jinyang Road, Huaqiao Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Kunshan wangfan Information Technology Co., Ltd Address before: 311215 room C-703, 198 enlightenment Road, Xiaoshan economic and Technological Development Zone, Xiaoshan District, Zhejiang, Hangzhou Patentee before: HANGZHOU HOUWAI INFORMATION TECHNOLOGY CO., LTD. |