CN215871360U - Amplitude-frequency characteristic optimization device - Google Patents
Amplitude-frequency characteristic optimization device Download PDFInfo
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- CN215871360U CN215871360U CN202122422068.7U CN202122422068U CN215871360U CN 215871360 U CN215871360 U CN 215871360U CN 202122422068 U CN202122422068 U CN 202122422068U CN 215871360 U CN215871360 U CN 215871360U
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Abstract
The utility model provides an amplitude-frequency characteristic optimization device which comprises an optimization circuit and a power supply, wherein the optimization circuit is composed of a plurality of isolators, band-pass filters and low-noise amplifiers, and the power supply is connected with the optimization circuit and supplies power to the optimization circuit. The utility model improves the traditional amplifying and filtering circuit, adopts the low-noise amplifier, and adds the isolators in front of and behind the band-pass filter and the amplifier, thereby effectively reducing the mutual influence among input signals, output signals and power supply, providing good broadband matching between the radio frequency filter and the low-noise amplifier and improving the amplitude-frequency characteristic.
Description
Technical Field
The utility model belongs to the technical field of communication, and particularly relates to an amplitude-frequency characteristic optimization device.
Background
In recent years, our country has paid more attention to the development of communication, and the communication frequency band has gradually advanced to a higher frequency band. However, the increase of the frequency band requires the performance index of communication equipment such as a frequency converter and the like to be high.
The amplitude-frequency characteristic is a very important index, and influences the quality of signal transmission. However, since the frequency band becomes high, the frequency converter usually adopts two or more times of frequency conversion to complete the frequency conversion. After the traditional amplifying and filtering circuit amplifies and filters an input signal, the output signal hardly has good amplitude-frequency characteristics due to the mutual influence among the input signal, the output signal and a power supply; therefore, the debugging difficulty of the amplitude-frequency characteristic is increased, and the normal use of the equipment is influenced.
Disclosure of Invention
The utility model aims to provide an amplitude-frequency characteristic optimization device, which provides good broadband matching and improves the amplitude-frequency characteristic.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
an amplitude-frequency characteristic optimization device comprises an optimization circuit and a power supply, wherein the optimization circuit is composed of a plurality of isolators, a band-pass filter and a low-noise amplifier, and the power supply is connected with the optimization circuit and supplies power to the optimization circuit.
Preferably, the isolators in the optimization circuit are three groups, namely a first isolator, a second isolator and a third isolator; the first isolator is used for isolating the input signal from the band-pass filter; the second isolator is used for isolating the band-pass filter from the low-noise amplifier; the third isolator is used for isolating the low noise amplifier and subsequent circuits.
Furthermore, the first isolator modulates, isolates, converts and demodulates the input signal, and simultaneously isolates the power supply.
Further, the second isolator provides a broadband match between the bandpass filter and the low noise amplifier.
Further, the third isolator modulates, isolates, converts and demodulates the transmitted signal, and simultaneously isolates the power supply.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model improves the traditional amplifying and filtering circuit, adopts the low-noise amplifier, and adds the isolators in front of and behind the band-pass filter and the amplifier, thereby effectively reducing the mutual influence among input signals, output signals and power supply, providing good broadband matching between the radio frequency filter and the low-noise amplifier and improving the amplitude-frequency characteristic.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an optimization circuit according to an embodiment of the present invention.
Wherein: 1. a first isolator;
2. a band-pass filter;
3. a second isolator;
4. a low noise amplifier;
5. and a third isolator.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, an embodiment of the present invention includes an optimization circuit and a power supply, where the optimization circuit is used to optimize the amplitude-frequency characteristics of an input signal; the power supply is used for supplying power to the optimization circuit. The optimization circuit comprises a plurality of isolators, a band-pass filter 2 and a low noise amplifier 4.
In the embodiment, three groups of isolators are adopted to form an optimization circuit together with the band-pass filter 2 and the low-noise amplifier 4; as shown in fig. 2, the three sets of isolators are a first isolator 1, a second isolator 3, and a third isolator 5, respectively; the first isolator 1 is used for isolating the input signal from the band-pass filter 2; the second isolator 3 is used for isolating the band-pass filter 2 and the low noise amplifier 4; the third isolator 5 is used for isolating the low noise amplifier 4 and the subsequent circuits. The band-pass filter 2 is used for filtering an input signal; the low noise amplifier 4 is used for low noise amplification of the input signal.
An input signal enters an optimization circuit, firstly enters a first isolator 1, the first isolator 1 carries out modulation, isolation conversion, demodulation and other transformations on the input signal to obtain an isolated signal, and simultaneously carries out isolation processing on a power supply, so that the isolation performance among the input signal, the output signal and the power supply is improved, and the mutual influence is reduced; the signal enters a band-pass filter 2, and the band-pass filter 2 performs band-pass filtering on the required signal to remove redundant waves; the resulting desired signal then enters a second isolator 3, which second isolator 3 provides a good broadband match between the radio frequency filter 2 and the low noise amplifier 4; then the signal enters a low noise amplifier 4, the low noise amplifier 4 amplifies the input signal with low noise, and compared with a common amplifier, the low noise amplifier has smaller influence on the amplitude-frequency characteristic; then the signal enters a third isolator 5, the third isolator 5 performs modulation, isolation conversion, demodulation and other transformations on the input signal to obtain an isolated signal, and simultaneously performs isolation processing on the power supply, so that the isolation performance among the input signal, the output signal and the power supply is improved, and the mutual influence is reduced; finally, the optimized amplified filtering signal is obtained, and the amplitude-frequency characteristic index is obviously improved compared with the ordinary amplified filtering signal.
The present invention is not limited to the above embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. The amplitude-frequency characteristic optimization device is characterized by comprising an optimization circuit and a power supply, wherein the optimization circuit is composed of a plurality of isolators, band-pass filters and low-noise amplifiers, and the power supply is connected with the optimization circuit and supplies power to the optimization circuit.
2. The amplitude-frequency characteristic optimization device of claim 1, wherein the isolators in the optimization circuit are three groups, namely a first isolator, a second isolator and a third isolator; the first isolator is used for isolating the input signal from the band-pass filter; the second isolator is used for isolating the band-pass filter from the low-noise amplifier; the third isolator is used for isolating the low noise amplifier and subsequent circuits.
3. The amplitude-frequency characteristic optimization device according to claim 2, wherein the first isolator modulates, isolates, converts and demodulates the input signal, and isolates the power supply.
4. The amplitude-frequency characteristic optimizing apparatus as claimed in claim 2, wherein the second isolator provides a broadband matching between the band-pass filter and the low noise amplifier.
5. The amplitude-frequency characteristic optimization device according to claim 2, wherein the third isolator modulates, isolates, converts and demodulates the transmitted signal, and isolates the power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122422068.7U CN215871360U (en) | 2021-10-08 | 2021-10-08 | Amplitude-frequency characteristic optimization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122422068.7U CN215871360U (en) | 2021-10-08 | 2021-10-08 | Amplitude-frequency characteristic optimization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215871360U true CN215871360U (en) | 2022-02-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122422068.7U Active CN215871360U (en) | 2021-10-08 | 2021-10-08 | Amplitude-frequency characteristic optimization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215871360U (en) |
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2021
- 2021-10-08 CN CN202122422068.7U patent/CN215871360U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20230616 Address after: 300222 No. 6, Taishan Road, Hexi District, Tianjin Patentee after: TOEC Technology Co.,Ltd. Address before: 300211 No. 6, Taishan Road, Tianjin, Hexi District Patentee before: TIANJIN GUANGDIAN FENGTAI TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right |