CN208723859U - A kind of novel low noise amplification switch block - Google Patents
A kind of novel low noise amplification switch block Download PDFInfo
- Publication number
- CN208723859U CN208723859U CN201821323419.0U CN201821323419U CN208723859U CN 208723859 U CN208723859 U CN 208723859U CN 201821323419 U CN201821323419 U CN 201821323419U CN 208723859 U CN208723859 U CN 208723859U
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- China
- Prior art keywords
- amplification
- filter
- switch block
- signal
- signal input
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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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- Amplifiers (AREA)
Abstract
The utility model discloses a kind of novel low noise amplification switch block, including the first amplification switch block and the second amplification switch block, the first amplification switch block includes several signal input ports, the filter amplification circuit being connected with each signal input port, input signal is connect after filter amplification circuit filter and amplification with power splitter, and power splitter divides two-way to be separately connected with switch K1 and switch K2；The second amplification switch block includes several signal input ports, and the filter amplification circuit being connected with each signal input port, output signal of the input signal after filter amplification circuit filter and amplification is connect with switch K3 respectively；3 switches are respectively equipped with signal output port.The utility model provides multi-band signal enlarging function, while high gain, noise coefficient are small, degree of suppression is high, switching speed is fast.
Description
Technical field
The utility model belongs to signal processing technology field, and in particular to a kind of novel low noise amplification switch block.
Background technique
Low-noise amplifier is the very low amplifier of noise coefficient.Be typically used as all kinds of radio receivers high frequency or
Intermediate-frequency preamplifier (such as WiFi inside mobile phone, computer or iPAD), and highly sensitive electron detection equipment are put
Big circuit.Meanwhile low-noise amplifier is modern radar, radio communication, the important component in electronic warfare system, in the system of reception
In it be always at the position of front end, the received small-signal of whole system is amplified, and reduce the interference of noise, to whole
The sensitivity of a reception system and noise-induced play conclusive effect.Only one most frequency range of existing low-noise amplifier
Signal input part, the amplification of multi-band signal cannot be provided, while performance is difficult to accomplish that high gain, noise coefficient are small, inhibit
Degree is high.
Summary of the invention
Goal of the invention: the utility model aim is in view of the deficiencies of the prior art, to provide a kind of amplification of multifrequency, gain
The novel low noise high, noise coefficient is small, degree of suppression is high, switching speed is fast amplifies switch block.
Technical solution: novel low noise described in the utility model amplifies switch block, including the first amplification switch block and
Second amplification switch block, the first amplification switch block includes several signal input ports, with each signal input part
The connected filter amplification circuit of mouth, input signal are connect after filter amplification circuit filter and amplification with power splitter, and power splitter is divided to two
Road is separately connected with switch K1 and switch K2；The second amplification switch block includes several signal input ports, and each
The connected filter amplification circuit of signal input port, output signal difference of the input signal after filter amplification circuit filter and amplification
It is connect with switch K3；3 switches are respectively equipped with signal output port.
Above-mentioned technical proposal is further improved, the filter amplification circuit includes sequentially connected filter, limiter
And amplifier.
Further, the first amplification switch block includes 6 road signal input ports, and the second amplification switch block includes
3 road signal input ports.
Further, the signal input port and signal output port are SMA-50-K type.
The utility model has the advantages that the utility model provides the signal input port of two kinds of frequency ranges, it is defeated to receive multichannel in each frequency range
Enter；There is the performance that gain is big, noise coefficient is small, and degree of suppression is high, switching speed is fast simultaneously, be suitable for various military radars, lead to
In the machine systems such as letter, electronic countermeasure, observing and controlling.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Specific embodiment
Technical solutions of the utility model are described in detail below by attached drawing, but the protection scope of the utility model
It is not limited to the embodiment.
Embodiment 1: a kind of novel low noise amplification switch block, as shown in Figure 1, including 9 signal input port XS1~
XS9, wherein XS1~XS6 is for receiving L-band electromagnetic wave, and XS7~XS9 is for receiving pattern-band electromagnetic wave.First switch amplification
Component include 6 signal input port XS1~XS6, every road input signal after filter amplification circuit filter and amplification with power splitter
Connection, power splitter divide two-way to connect respectively with switch K1 and switch K2；The filter amplification circuit includes sequentially connected filtering
Device, limiter and amplifier；Switch K1 and switch K2 is equipped with signal output port XS11 and XS12.
Second switch amplifier module includes 3 signal input port XS7~XS9, and every road input signal is through filter and amplification electricity
It is connect respectively with switch K3 after the filter and amplification of road；The filter amplification circuit includes sequentially connected filter, limiter and puts
Big device；Switch K3 is equipped with signal output port XS13.The signal input port and signal output port are SMA-50-K type.
The electrical characteristics of novel low noise amplification switch block provided by the utility model are as shown in the table:
Table 1
As described above, although the utility model has been indicated and described referring to specific preferred embodiment, it must not
It is construed to the limitation to the utility model itself.In the spirit and scope for not departing from the utility model that appended claims define
Under the premise of, it can various changes can be made in the form and details to it.
Claims (4)
1. a kind of novel low noise amplifies switch block, it is characterised in that: opened including the first amplification switch block and the second amplification
Component is closed, the first amplification switch block includes several signal input ports, the filter being connected with each signal input port
Wave amplifying circuit, input signal are connect after filter amplification circuit filter and amplification with power splitter, and power splitter divides two-way and switch K1
It is separately connected with switch K2；The second amplification switch block includes several signal input ports, with each signal input part
The connected filter amplification circuit of mouth, output signal of the input signal after filter amplification circuit filter and amplification connect with switch K3 respectively
It connects；3 switches are respectively equipped with signal output port.
2. novel low noise according to claim 1 amplifies switch block, it is characterised in that: the filter amplification circuit packet
Include sequentially connected filter, limiter and amplifier.
3. novel low noise according to claim 1 amplifies switch block, it is characterised in that: the first amplification switching group
Part includes 6 road signal input ports, and the second amplification switch block includes 3 road signal input ports.
4. novel low noise according to claim 1 amplifies switch block, it is characterised in that: the signal input port and
Signal output port is SMA-50-K type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821323419.0U CN208723859U (en) | 2018-08-16 | 2018-08-16 | A kind of novel low noise amplification switch block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821323419.0U CN208723859U (en) | 2018-08-16 | 2018-08-16 | A kind of novel low noise amplification switch block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208723859U true CN208723859U (en) | 2019-04-09 |
Family
ID=65977897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821323419.0U Expired - Fee Related CN208723859U (en) | 2018-08-16 | 2018-08-16 | A kind of novel low noise amplification switch block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208723859U (en) |
-
2018
- 2018-08-16 CN CN201821323419.0U patent/CN208723859U/en not_active Expired - Fee Related
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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: 20190409 Termination date: 20190816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |