CN204886943U - Subassembly is put to C wave band low noise - Google Patents
Subassembly is put to C wave band low noise Download PDFInfo
- Publication number
- CN204886943U CN204886943U CN201520562871.2U CN201520562871U CN204886943U CN 204886943 U CN204886943 U CN 204886943U CN 201520562871 U CN201520562871 U CN 201520562871U CN 204886943 U CN204886943 U CN 204886943U
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- China
- Prior art keywords
- pass filter
- band pass
- switch
- select
- band
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- Expired - Fee Related
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Abstract
The utility model discloses a subassembly is put to C wave band low noise, its characterized in that: it includes that the clipper -limiter, a band pass filter, a low -noise amplifier, stage matching circuit, the 2nd low -noise amplifier, gain compensating circuit, the N that connect gradually select a switch, N the 2nd band pass filter, the 2nd N to select a switch, driving amplifier and gain adjustment circuit, and wherein, N is the natural number, and a N selects a N output of a switch to select a N input of a switch to be connected through one the 2nd band pass filter and the 2nd N respectively. The utility model provides the high frequency width of signal has improved the gain, and it is stray to have reduced the signal, has improved the flatness of signal through the control to gain compensation and drive circuit. The utility model discloses still can realize enlarging the range of application, the multiplexed output makes things convenient for the extension of function.
Description
Technical field
The utility model relates to a kind of C-band LNA assembly.
Background technology
Existing C-band LNA assembly function is single, and frequency point ranges is narrow, and gain is low, bears power little, and range of application is narrow.Be unfavorable for the market development, do not catch up with the needs in market.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of C-band LNA assembly, has broadband, high-gain, bears the features such as power is large.
The purpose of this utility model is achieved through the following technical solutions: a kind of C-band LNA assembly, it comprises the amplitude limiter, the first band pass filter, the first low noise amplifier, intervalve matching circuit, the second low noise amplifier, gain compensation circuit, the N that connect successively and selects a switch, N number of second band pass filter, the 2nd N to select a switch, driving amplifier and gain adjusting circuit, wherein, N is natural number, and a N selects N number of output of a switch to select N number of input of a switch to be connected respectively by second band pass filter with the 2nd N.
Described first band pass filter comprises 4.4GHz-5.0GHz band pass filter.
Described second band pass filter comprises 4.39GHz-4.560GHz band pass filter, 4.54GHz-4.71GHz band pass filter, 4.69GHz-4.86GHz band pass filter and 4.84GHz-5.01GHz band pass filter.
A described N selects a switch and the 2nd N to select a switch to be four select a switch, N=4.
The beneficial effects of the utility model are: the utility model improves the band width of signal, improves gain, decreases signal spuious, by improve the flatness of signal to the control of gain compensation and drive circuit.The utility model also can realize expanding range of application, and multiple-channel output facilitates the expansion of function.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of a kind of C-band LNA of the utility model assembly.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection range of the present utility model is not limited to the following stated.
As shown in Figure 1, a kind of C-band LNA assembly, it comprises the amplitude limiter, the first band pass filter, the first low noise amplifier, intervalve matching circuit, the second low noise amplifier, gain compensation circuit, the N that connect successively and selects a switch, N number of second band pass filter, the 2nd N to select a switch, driving amplifier and gain adjusting circuit, wherein, N is natural number, and a N selects N number of output of a switch to select N number of input of a switch to be connected respectively by second band pass filter with the 2nd N.
Described first band pass filter comprises 4.4GHz-5.0GHz band pass filter.
Described second band pass filter comprises 4.39GHz-4.560GHz band pass filter, 4.54GHz-4.71GHz band pass filter, 4.69GHz-4.86GHz band pass filter and 4.84GHz-5.01GHz band pass filter.
A described N selects a switch and the 2nd N to select a switch to be four select a switch, N=4.
Radiofrequency signal prevents high power from burning through amplitude limiter protection, after delivering to the first band pass filter (4.4GHz-5GHz) filtering clutter signal, delivering to the first low noise amplifier amplification, signal is input to intervalve matching circuit after amplifying and carries out impedance matching, signal after coupling is delivered to the second low noise amplifier and is amplified, signal again amplifies rear feeding gain compensation circuit and carries out well-balanced adjustment, its signal is sent into four and is selected a switch and band pass filter (4.39GHz-4.56GHz), band pass filter (4.54GHz-4.71GHz), band pass filter (4.69GHz-4.86GHz), the signal that band pass filter (4.84GHz-5.01GHz) and four selects a switch combination to carry out controlling filtering clutter to synthesize a road 4.4GHz ~ 5GHz, this signal is input to driving amplifier again and improves power output, then output to gain adjusting circuit and export the power frequency signal needed.
The utility model improves the band width of signal, improves gain, decreases signal spuious, by improve the flatness of signal to the control of gain compensation and drive circuit.The utility model also can realize expanding range of application, and multiple-channel output facilitates the expansion of function.
This C-band LNA assembly has the advantages such as broadband, high-gain, high power bear, low spurious, flatness are high, operating temperature range is wide, good stability.Show that this C-band LNA assembly is reliable and stable through test of many times, be easy to produce this, have good market prospects, be beneficial to batch production.
Claims (4)
1. a C-band LNA assembly, it is characterized in that: it comprises the amplitude limiter, the first band pass filter, the first low noise amplifier, intervalve matching circuit, the second low noise amplifier, gain compensation circuit, the N that connect successively and selects a switch, N number of second band pass filter, the 2nd N to select a switch, driving amplifier and gain adjusting circuit, wherein, N is natural number, and a N selects N number of output of a switch to select N number of input of a switch to be connected respectively by second band pass filter with the 2nd N.
2. a kind of C-band LNA assembly according to claim 1, is characterized in that: described first band pass filter comprises 4.4GHz-5.0GHz band pass filter.
3. a kind of C-band LNA assembly according to claim 1, is characterized in that: described second band pass filter comprises 4.39GHz-4.560GHz band pass filter, 4.54GHz-4.71GHz band pass filter, 4.69GHz-4.86GHz band pass filter and 4.84GHz-5.01GHz band pass filter.
4. a kind of C-band LNA assembly according to claim 1, is characterized in that: a described N selects a switch and the 2nd N to select a switch to be four select a switch, N=4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520562871.2U CN204886943U (en) | 2015-07-30 | 2015-07-30 | Subassembly is put to C wave band low noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520562871.2U CN204886943U (en) | 2015-07-30 | 2015-07-30 | Subassembly is put to C wave band low noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204886943U true CN204886943U (en) | 2015-12-16 |
Family
ID=54831263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520562871.2U Expired - Fee Related CN204886943U (en) | 2015-07-30 | 2015-07-30 | Subassembly is put to C wave band low noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204886943U (en) |
-
2015
- 2015-07-30 CN CN201520562871.2U patent/CN204886943U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20190730 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |