CN208754250U - A kind of power amplifier device - Google Patents
A kind of power amplifier device Download PDFInfo
- Publication number
- CN208754250U CN208754250U CN201821121817.4U CN201821121817U CN208754250U CN 208754250 U CN208754250 U CN 208754250U CN 201821121817 U CN201821121817 U CN 201821121817U CN 208754250 U CN208754250 U CN 208754250U
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- CN
- China
- Prior art keywords
- module
- filter
- attenuator
- amplifier
- power amplifier
- 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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- Radio Relay Systems (AREA)
Abstract
The utility model discloses a kind of power amplifier devices comprising cabinet is arranged in cabinet and sequentially connected input module, excitation module and output module, and the power module being connected respectively with input module, excitation module and output module；Input module includes sequentially connected first attenuator, the first amplifier and first filter；Excitation module includes sequentially connected second attenuator, the second amplifier and second filter；Output module includes sequentially connected promotion grade, mating end, power amplifier and isolator；The output end of first filter is connected with the input terminal of the second attenuator；The output end of second filter is connected with the input terminal of grade is pushed；The output end of isolator connects Beidou L frequency range transmitting antenna.The utility model is small in size, carries frequency-selecting function, without external filter, it can be achieved that open-circuit-protection, can work in harsh environments, high reliablity.
Description
Technical field
The utility model relates to satellite communication fields, and in particular to a kind of power amplifier device.
Background technique
Power amplifier (English name: power amplifier) referred to as " power amplifier " refers in given distortion rate condition
Under, maximum power output can be generated to drive the amplifier of a certain load.In satellite communication, due to the spacing of satellite and terminal
From farther out, if terminal is directly communicated with satellite, for the connective stability for guaranteeing communication, then need power amplifier device by
Signal amplifies, but existing satellite is big with power amplifier volume, reliability is poor.
Utility model content
For above-mentioned deficiency in the prior art, a kind of power amplifier device provided by the utility model solves existing defend
The problem of star power amplifier device poor reliability.
In order to achieve the above object of the invention, the technical solution adopted in the utility model are as follows:
There is provided a kind of power amplifier device comprising cabinet is arranged in cabinet and sequentially connected input module, excitation
Module and output module, and the power module being connected respectively with input module, excitation module and output module；Input module
Including sequentially connected first attenuator, the first amplifier and first filter；Excitation module includes sequentially connected second declining
Subtract device, the second amplifier and second filter；Output module include sequentially connected promotion grade, mating end, power amplifier and
Isolator；The output end of first filter is connected with the input terminal of the second attenuator；The output end of second filter and promotion
The input terminal of grade is connected；The output end of isolator connects Beidou L frequency range transmitting antenna；
First attenuator is -3dB attenuator；First amplifier is+18 amplifiers；First filter is -3dB filter；
Second attenuator is -2dB attenuator；Second amplifier is+18dB amplifier；Second filter is -2.5dB filter；It pushes
Grade is that+16dB pushes grade；Mating end is -1.5dB mating end；Power amplifier is+16dB power amplifier；Isolator be-
0.5dB isolator.
Further, at least three cavitys, input module, excitation module and output module, power supply mould are provided in cabinet
Block is located in three different cavitys.
The utility model has the following beneficial effects: the utility model is small in size, frequency-selecting function is carried, does not have to external filter,
Open-circuit-protection can be achieved, can work in harsh environments, high reliablity.Output module installs isolator additional, in addition to having choosing
Frequency, it is also ensured that power amplifier is not burnt in the case where being not connected to antenna.
Detailed description of the invention
Fig. 1 is the electrical block diagram of the utility model；
Fig. 2 divides chamber schematic diagram for box house.
Specific embodiment
Specific embodiment of the present utility model is described below, in order to facilitate understanding by those skilled in the art
The utility model, it should be apparent that the utility model is not limited to the range of specific embodiment, to the common skill of the art
For art personnel, if various change the attached claims limit and determine the utility model spirit and scope in,
These variations are it will be apparent that all utilize the innovation and creation of the utility model design in the column of protection.
As shown in Figure 1, the power amplifier device includes cabinet, it is arranged in cabinet and sequentially connected input module, swashs
Module and output module are encouraged, and the power module being connected respectively with input module, excitation module and output module；Input mould
Block includes sequentially connected first attenuator, the first amplifier and first filter；Excitation module includes sequentially connected second
Attenuator, the second amplifier and second filter；Output module includes sequentially connected promotion grade, mating end, power amplifier
And isolator；The output end of first filter is connected with the input terminal of the second attenuator；The output end of second filter with push away
The input terminal of dynamic grade is connected；The output end of isolator connects Beidou L frequency range transmitting antenna；
First attenuator is -3dB attenuator；First amplifier is+18 amplifiers；First filter is -3dB filter；
Second attenuator is -2dB attenuator；Second amplifier is+18dB amplifier；Second filter is -2.5dB filter；It pushes
Grade is that+16dB pushes grade；Mating end is -1.5dB mating end；Power amplifier is+16dB power amplifier；Isolator be-
0.5dB isolator.
As shown in Fig. 2, gain is higher since present apparatus power is larger, small volume, therefore at work, it must just examine
Consider the self-excitation problem of power amplifier itself, therefore the utility model is provided at least three cavitys in cabinet and is preferentially set as three
It is a, input module, excitation module are located in three different cavitys from output module, power module, i.e. excitation module
It is arranged in the same cavity with output module.So that the utility model strengthens shielding, signals leakiness crosstalk can be prevented, more
Good improves isolation.Output end installs isolator additional, in addition to frequency-selecting, it is also ensured that in the case where being not connected to antenna
Do not burn power amplifier.
In conclusion the utility model is small in size, frequency-selecting function is carried, does not have to external filter, it can be achieved that open-circuit-protection,
It can work in harsh environments, high reliablity.
Claims (2)
1. a kind of power amplifier device, it is characterised in that: including cabinet, be arranged in the cabinet and sequentially connected input mould
Block, excitation module and output module, and the power supply mould being connected respectively with the input module, excitation module and output module
Block；The input module includes sequentially connected first attenuator, the first amplifier and first filter；The excitation module packet
Include sequentially connected second attenuator, the second amplifier and second filter；The output module includes sequentially connected promotion
Grade, mating end, power amplifier and isolator；The input terminal phase of the output end of the first filter and second attenuator
Connection；The output end of the second filter is connected with the input terminal for pushing grade；The output end of the isolator connects
Beidou L frequency range transmitting antenna；
First attenuator is -3dB attenuator；First amplifier is+18 amplifiers；The first filter is -3dB
Filter；Second attenuator is -2dB attenuator；Second amplifier is+18dB amplifier；The second filter
For -2.5dB filter；The promotion grade is that+16dB pushes grade；The mating end is -1.5dB mating end；The power amplification
Device is+16dB power amplifier；The isolator is -0.5dB isolator.
2. power amplifier device according to claim 1, it is characterised in that: be provided at least three chambers in the cabinet
Body, the input module, excitation module are located in three different cavitys from output module, power module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821121817.4U CN208754250U (en) | 2018-07-17 | 2018-07-17 | A kind of power amplifier device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821121817.4U CN208754250U (en) | 2018-07-17 | 2018-07-17 | A kind of power amplifier device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208754250U true CN208754250U (en) | 2019-04-16 |
Family
ID=66055584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821121817.4U Expired - Fee Related CN208754250U (en) | 2018-07-17 | 2018-07-17 | A kind of power amplifier device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208754250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110708023A (en) * | 2019-09-30 | 2020-01-17 | 南京微通电子技术有限公司 | High-power ultra-bandwidth power amplifier |
-
2018
- 2018-07-17 CN CN201821121817.4U patent/CN208754250U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110708023A (en) * | 2019-09-30 | 2020-01-17 | 南京微通电子技术有限公司 | High-power ultra-bandwidth power amplifier |
| CN110708023B (en) * | 2019-09-30 | 2023-06-09 | 南京微通电子技术有限公司 | High-power ultra-bandwidth power amplifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190416 Termination date: 20200717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |