CN208656760U - A kind of Beidou antenna radio-frequency unit - Google Patents
A kind of Beidou antenna radio-frequency unit Download PDFInfo
- Publication number
- CN208656760U CN208656760U CN201821176053.9U CN201821176053U CN208656760U CN 208656760 U CN208656760 U CN 208656760U CN 201821176053 U CN201821176053 U CN 201821176053U CN 208656760 U CN208656760 U CN 208656760U
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- China
- Prior art keywords
- amplifier
- attenuator
- duplexer
- filter
- input terminal
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- 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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- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
The utility model discloses a kind of Beidou antenna radio-frequency units comprising radio-frequency antenna, the input terminal of radio-frequency antenna are connected with the second duplexer；The input terminal of second duplexer is separately connected S-band low noise amplification channel and L-band low noise amplification channel.Direct current biasing when the utility model at work, S and L signal can work under the conditions of Integrated Service Digital Network, and two low working method high compared to existing three is physically easier to perform and safeguards that, so that present apparatus better reliability, using effect is more preferably.
Description
Technical field
The utility model relates to antenna rf fields, and in particular to a kind of Beidou antenna radio-frequency unit.
Background technique
Beidou antenna radio-frequency unit is the device for the carry out data communication with Beidou satellite system, existing Beidou transmitting-receiving
Body product is big, reliability is low so that its effect is poor in actual use.
Utility model content
For above-mentioned deficiency in the prior art, a kind of Beidou antenna radio-frequency unit provided by the utility model solves existing
The problem for having Beidou antenna radio-frequency unit reliability low.
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 Beidou antenna radio-frequency unit comprising radio-frequency antenna, the input terminal of radio-frequency antenna and the second duplexer
It is connected；The input terminal of second duplexer is separately connected S-band low noise amplification channel and L-band low noise amplification channel；S wave
Section low noise amplification channel includes sequentially connected first filter, the first amplifier, second filter, the second amplifier, the
One attenuator, third amplifier and the second attenuator；The input terminal of first filter is the input in S-band low noise amplification channel
End；The output end of second attenuator is as the output end in S-band low noise amplification channel and the input terminal of the second duplexer of connection；
L-band low noise amplification channel includes sequentially connected third attenuator, first duplexer, the 4th attenuator, letter
Number selector, the 4th amplifier, third filter, the 5th amplifier, the 6th amplifier, power amplifier tube and isolator；Third
The input terminal of attenuator is the input terminal in L-band low noise amplification channel；The output end of isolator is logical for L-band low noise amplification
The output end in road and the input terminal for connecting the second duplexer.
Further, first filter is -0.4dB filter；First amplifier is+18dB amplifier；Second filter
For -2.5dB filter；Second amplifier is+20dB amplifier；First attenuator is -2dB attenuator；Third amplifier be+
20dB amplifier；Second attenuator is -1dB attenuator；Third attenuator is -3dB attenuator；First duplexer is -2.5dB double
Work device；4th attenuator is -3dB attenuator；Signal selector is -2.5dB signal selector；4th amplifier is that+18dB is put
Big device；Third filter is -2.5dB filter；5th amplifier is+18dB amplifier；6th amplifier is+15dB amplification
Device；Power amplifier tube is+18 power amplifier tubes；Isolator is -0.4dB isolator；Second duplexer is -2.5dB duplexer.
The utility model has the following beneficial effects: the utility model is low in energy consumption, small in size, high reliablity, working direct current is inclined
It sets, S and L signal can work under the conditions of Integrated Service Digital Network, and two low working method high compared to existing three is physically easier to perform and safeguards.
Detailed description of the invention
Fig. 1 is the structural block diagram of the utility model.
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 Beidou antenna radio-frequency unit includes radio-frequency antenna, the input terminal of radio-frequency antenna and the second duplexer
It is connected；The input terminal of second duplexer is separately connected S-band low noise amplification channel and L-band low noise amplification channel；S wave
Section low noise amplification channel includes sequentially connected first filter, the first amplifier, second filter, the second amplifier, the
One attenuator, third amplifier and the second attenuator；The input terminal of first filter is the input in S-band low noise amplification channel
End；The output end of second attenuator is as the output end in S-band low noise amplification channel and the input terminal of the second duplexer of connection；
L-band low noise amplification channel includes sequentially connected third attenuator, first duplexer, the 4th attenuator, letter
Number selector, the 4th amplifier, third filter, the 5th amplifier, the 6th amplifier, power amplifier tube and isolator；Third
The input terminal of attenuator is the input terminal in L-band low noise amplification channel；The output end of isolator is logical for L-band low noise amplification
The output end in road and the input terminal for connecting the second duplexer.
First filter is -0.4dB filter；First amplifier is+18dB amplifier；Second filter is -2.5dB filter
Wave device；Second amplifier is+20dB amplifier；First attenuator is -2dB attenuator；Third amplifier is+20dB amplifier；
Second attenuator is -1dB attenuator；Third attenuator is -3dB attenuator；First duplexer is -2.5dB duplexer；4th declines
Subtracting device is -3dB attenuator；Signal selector is -2.5dB signal selector；4th amplifier is+18dB amplifier；Third filter
Wave device is -2.5dB filter；5th amplifier is+18dB amplifier；6th amplifier is+15dB amplifier；Power amplifier tube
For+18 power amplifier tubes；Isolator is -0.4dB isolator；Second duplexer is -2.5dB duplexer.
Direct current biasing when the utility model at work, S and L signal can work under the conditions of Integrated Service Digital Network, compared to existing three
High two low working method is physically easier to perform and safeguards that, so that present apparatus better reliability, using effect is more preferably.
Claims (2)
1. a kind of Beidou antenna radio-frequency unit, it is characterised in that: including radio-frequency antenna, the input terminal of the radio-frequency antenna and second
Duplexer is connected；The input terminal of second duplexer is separately connected S-band low noise amplification channel and L-band low noise is put
Big channel；S-band low noise amplification channel include sequentially connected first filter, the first amplifier, second filter,
Second amplifier, the first attenuator, third amplifier and the second attenuator；The input terminal of the first filter is that S-band is low
The input terminal of noise amplification channel；The output end of second attenuator as S-band low noise amplification channel output end simultaneously
Connect the input terminal of second duplexer；
L-band low noise amplification channel includes sequentially connected third attenuator, first duplexer, the 4th attenuator, letter
Number selector, the 4th amplifier, third filter, the 5th amplifier, the 6th amplifier, power amplifier tube and isolator；It is described
The input terminal of third attenuator is the input terminal in L-band low noise amplification channel；The output end of the isolator is L-band low noise
The output end of sound amplification channel and the input terminal for connecting second duplexer.
2. Beidou antenna radio-frequency unit according to claim 1, it is characterised in that: the first filter is -0.4dB filter
Wave device；First amplifier is+18dB amplifier；The second filter is -2.5dB filter；Second amplifier
For+20dB amplifier；First attenuator is -2dB attenuator；The third amplifier is+20dB amplifier；Described second
Attenuator is -1dB attenuator；The third attenuator is -3dB attenuator；The first duplexer is -2.5dB duplexer；Institute
Stating the 4th attenuator is -3dB attenuator；The signal selector is -2.5dB signal selector；4th amplifier be+
18dB amplifier；The third filter is -2.5dB filter；5th amplifier is+18dB amplifier；Described 6th
Amplifier is+15dB amplifier；The power amplifier tube is+18 power amplifier tubes；The isolator is -0.4dB isolator；Institute
Stating the second duplexer is -2.5dB duplexer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821176053.9U CN208656760U (en) | 2018-07-25 | 2018-07-25 | A kind of Beidou antenna radio-frequency unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821176053.9U CN208656760U (en) | 2018-07-25 | 2018-07-25 | A kind of Beidou antenna radio-frequency unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208656760U true CN208656760U (en) | 2019-03-26 |
Family
ID=65786550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821176053.9U Expired - Fee Related CN208656760U (en) | 2018-07-25 | 2018-07-25 | A kind of Beidou antenna radio-frequency unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208656760U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039615A (en) * | 2021-12-17 | 2022-02-11 | 成都金诺信高科技有限公司 | Antenna transceiving circuit |
-
2018
- 2018-07-25 CN CN201821176053.9U patent/CN208656760U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039615A (en) * | 2021-12-17 | 2022-02-11 | 成都金诺信高科技有限公司 | Antenna transceiving circuit |
| CN114039615B (en) * | 2021-12-17 | 2023-05-05 | 成都金诺信高科技有限公司 | Antenna receiving and transmitting circuit |
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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: 20190326 Termination date: 20200725 |
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| CF01 | Termination of patent right due to non-payment of annual fee |