CN210514443U - High-performance radio frequency detection circuit - Google Patents
High-performance radio frequency detection circuit Download PDFInfo
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- CN210514443U CN210514443U CN201921223035.6U CN201921223035U CN210514443U CN 210514443 U CN210514443 U CN 210514443U CN 201921223035 U CN201921223035 U CN 201921223035U CN 210514443 U CN210514443 U CN 210514443U
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Abstract
The utility model relates to a radio frequency detection technical field, concretely relates to radio frequency detection circuitry of high performance. The high performance radio frequency detection circuit comprises: the radio frequency voltage-multiplying differential detector comprises a master input end, a radio frequency voltage-multiplying differential detector and a master output end; the radio frequency voltage-doubling differential detector comprises a voltage-stabilizing diode D2, a second capacitor C2, a second resistor R2 and a third resistor R3, wherein the input end of the voltage-stabilizing diode D2 is connected with the total input end, the output end of the voltage-stabilizing diode D2 is connected with one end of a second capacitor C2, one end of a second resistor R2 and one end of a third resistor R3, the other end of the second capacitor C2 is grounded, the other end of the second resistor R2 is grounded, and the other end of the third resistor R3 is connected with the total output end. The high-performance radio frequency detection circuit realizes passive detection signals, can detect single-frequency point signals and has high cost performance.
Description
Technical Field
The utility model relates to a radio frequency detection technical field, concretely relates to radio frequency detection circuitry of high performance.
Background
With the development of the communication industry, the detection of high frequency signals has come along. In the radio and television industry, a high-frequency signal is remotely monitored and network signals are guaranteed to be stable, and a high-performance radio frequency detection circuit is urgently needed to convert the radio frequency signal into an electric signal and transmit the electric signal to a single chip microcomputer and transmit the electric signal to a monitoring platform through a network management protocol. And the signal quality is remotely monitored. Ensuring the normal operation of the network. The designed radio frequency detection circuit does not need to provide voltage, and the detection is directly carried out through the strong and weak energy of the radio frequency signal to convert the radio frequency signal into direct current voltage to be transmitted to a network management system. Conventional level detection chips all require power supply and are integrated chips, such as MAX4003, HMC713MS8, and the like. In the circuit design process, a power supply is required to be provided, and the cost performance is low.
Disclosure of Invention
In order to solve the not enough of existence among the prior art, the utility model provides a radio frequency detection circuit of high performance, the radio frequency detection circuit of high performance realizes passive detected signal, can detect single frequency point signal, the sexual valence relative altitude.
According to the utility model provides a technical scheme, a radio frequency detection circuit of high performance, radio frequency detection circuit of high performance includes: the radio frequency voltage-multiplying differential detector comprises a master input end, a radio frequency voltage-multiplying differential detector and a master output end;
the radio frequency voltage-doubling differential detector comprises a voltage-stabilizing diode D2, a second capacitor C2, a second resistor R2 and a third resistor R3, wherein the input end of the voltage-stabilizing diode D2 is connected with the total input end, the output end of the voltage-stabilizing diode D2 is connected with one end of a second capacitor C2, one end of a second resistor R2 and one end of a third resistor R3, the other end of the second capacitor C2 is grounded, the other end of the second resistor R2 is grounded, and the other end of the third resistor R3 is connected with the total output end.
Further, a first capacitor C1 is connected between the input end of the voltage stabilizing diode D2 and the total input end.
Further, a first resistor R1 is connected between one end of the first capacitor C1 and the total input end.
Further, the first capacitor C1 is used for coupling signals.
Further, the total output end is also connected to one end of a fourth capacitor C4, and the other end of the fourth capacitor C4 is grounded.
Further, the fourth capacitor C4 is used for filtering.
Further, the input end of the zener diode D2 is connected to one end of a third capacitor C3, and the other end of the third capacitor C3 is grounded; the third capacitor C3 is used for filtering.
Furthermore, the main input end is connected with one end of a voltage limiting protector D1, and the other end of the voltage limiting protector D1 is grounded.
From the foregoing, the utility model provides a radio frequency detection circuit of high performance compares with prior art and possesses following advantage: the utility model discloses can detect the radio frequency signal's of input the power detects out relevant voltage, realizes passive detected signal, can detect single-frequency point signal, also can detect the relevant product of wireless signal, the sexual valence relative altitude.
Drawings
Fig. 1 is a structural diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "first", "second", "third", and "fourth" used in the following description are used for distinguishing the respective components, and are not used for limiting the number of the respective components.
The utility model provides a high performance's radio frequency detection circuit, as shown in fig. 1, high performance's radio frequency detection circuit includes total input RFIN, radio frequency voltage doubling differential detector and total output RFOUT, radio frequency voltage doubling differential detector includes zener diode D2 second electric capacity C2, second resistance R2 and third resistance R3, zener diode D2's input is connected total input RFIN, zener diode D2's output is connected second electric capacity C2's one end, second resistance R2's one end and third resistance R3's one end, second electric capacity C2's other end ground connection, second resistance R2's other end ground connection, total output RFOUT is connected to third resistance R3's the other end.
The radio frequency voltage-multiplying differential detector can detect the strength of an input radio frequency signal to detect related voltage, realizes a passive detection signal, can detect a single-frequency point signal, can also detect related products of a wireless signal, and has high cost performance.
The first resistor R1 and the first capacitor C1 are sequentially connected between the input end of the voltage-stabilizing diode D2 and the total input end RFIN in series. The first capacitor C1 is used for coupling signals and filtering direct current signals. The first resistor R1 is used for branching an input signal.
The input end of the voltage stabilizing diode D2 is connected with one end of a third capacitor C3, and the other end of the third capacitor C3 is grounded; the third capacitor C3 is used for filtering. The total output terminal RFOUT is further connected to one terminal of a fourth capacitor C4, and the other terminal of the fourth capacitor C4 is grounded. The fourth capacitor C4 is used for filtering.
The total input end RFIN is connected with one end of a voltage limiting protector D1, and the other end of the voltage limiting protector D1 is grounded. Preferably, the voltage limiting protector D1 is used to protect the circuit from damage or locking due to electrostatic discharge, lightning and other destructive transient voltages. Preferably, the voltage limiting protector D1 adopts an ESD protection tube.
Those of ordinary skill in the art will understand that: the above description is only for the specific embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A high performance radio frequency detection circuit, the high performance radio frequency detection circuit comprising: the radio frequency voltage-multiplying differential detector comprises a master input end, a radio frequency voltage-multiplying differential detector and a master output end;
the radio frequency voltage-doubling differential detector comprises a voltage-stabilizing diode D2, a second capacitor C2, a second resistor R2 and a third resistor R3, wherein the input end of the voltage-stabilizing diode D2 is connected with the total input end, the output end of the voltage-stabilizing diode D2 is connected with one end of a second capacitor C2, one end of a second resistor R2 and one end of a third resistor R3, the other end of the second capacitor C2 is grounded, the other end of the second resistor R2 is grounded, and the other end of the third resistor R3 is connected with the total output end.
2. The high performance radio frequency detection circuit according to claim 1, wherein a first capacitor C1 is connected between the input terminal and the total input terminal of said zener diode D2.
3. The high performance rf detection circuit of claim 2, wherein a first resistor R1 is connected between one end of the first capacitor C1 and the total input.
4. The high performance radio frequency detection circuit according to claim 2 or 3, wherein said first capacitor C1 is used for coupling signal.
5. The high performance rf detection circuit of claim 1, wherein the total output terminal is further connected to one terminal of a fourth capacitor C4, and the other terminal of the fourth capacitor C4 is grounded.
6. The high performance radio frequency detection circuit according to claim 5, wherein said fourth capacitor C4 is used for filtering.
7. The high-performance radio frequency detection circuit according to claim 1, wherein an input terminal of the zener diode D2 is connected to one terminal of a third capacitor C3, and the other terminal of the third capacitor C3 is grounded; the third capacitor C3 is used for filtering.
8. The high performance rf detection circuit of claim 1, wherein the main input terminal is connected to one terminal of a voltage limiting protector D1, and the other terminal of the voltage limiting protector D1 is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921223035.6U CN210514443U (en) | 2019-07-31 | 2019-07-31 | High-performance radio frequency detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921223035.6U CN210514443U (en) | 2019-07-31 | 2019-07-31 | High-performance radio frequency detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210514443U true CN210514443U (en) | 2020-05-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921223035.6U Active CN210514443U (en) | 2019-07-31 | 2019-07-31 | High-performance radio frequency detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210514443U (en) |
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2019
- 2019-07-31 CN CN201921223035.6U patent/CN210514443U/en active Active
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