CN209640417U - It is a kind of with the circuit with antenna detection Yu Anti-surging function - Google Patents
It is a kind of with the circuit with antenna detection Yu Anti-surging function Download PDFInfo
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- CN209640417U CN209640417U CN201821367655.2U CN201821367655U CN209640417U CN 209640417 U CN209640417 U CN 209640417U CN 201821367655 U CN201821367655 U CN 201821367655U CN 209640417 U CN209640417 U CN 209640417U
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- resistance
- input head
- capacitor
- aerial signal
- signal input
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Abstract
The utility model is suitable for antenna detection field, it provides a kind of with the circuit with antenna detection Yu Anti-surging function, the circuit includes aerial signal input head ANT1, aerial signal input head ANT2, resistance R2, resistance R1, capacitor C2 capacitor C1 and coil inductance L1, solve that antenna detection circuit structure in the prior art is complicated, the technical issues of without Anti-surging function.
Description
Technical field
The utility model belongs to antenna detection field more particularly to a kind of with the electricity with antenna detection Yu Anti-surging function
Road.
Background technique
Current existing antenna detection is all mobile communication field, such as 4G antenna, the detection of WIFI aerial signal, cellular base station
Antenna detection.It is complicated that there is antenna detection circuit structures, not the technical issues of the function of Anti-surging.
Summary of the invention
The purpose of this utility model is to provide a kind of with the circuit with antenna detection Yu Anti-surging function, it is intended to it solves
Certainly antenna detection circuit structure in the prior art is complicated, the technical issues of without Anti-surging function.
The utility model is realized in this way a kind of with the circuit with antenna detection Yu Anti-surging function, the circuit packet
Include aerial signal input head ANT1, aerial signal input head ANT2, resistance R2, resistance R1, capacitor C2 capacitor C1 and coil inductance
L1, one end of the aerial signal input head ANT1 is connect with the end thereof contacts of the aerial signal input head ANT2 and position phase
Right, the other end of the aerial signal input head ANT1 connects one end of the resistance R2, the other end difference of the resistance R2
One end of the one end the resistance R1 and capacitor C2 is connected, the other end of the aerial signal input head ANT2 is separately connected the electricity
Hold one end of C1 and one end of the coil inductance L1, the other end of the resistance R1 connects power supply, and the capacitor C2's is another
The other end of end and the coil inductance L1 are all connected with GND.
The further technical solution of the utility model is: the coil turn of the coil inductance L1 is 17 circles.
The further technical solution of the utility model is: the internal diameter of the coil inductance L1 is 2.3mm.
The further technical solution of the utility model is: the line footpath of the coil inductance L1 is 0.4mm.
The further technical solution of the utility model is: the inductance of the coil inductance L1 is 198.6nH.
The beneficial effects of the utility model are: realizing antenna detection by using such circuit, and by using big line
Diameter coil inductance leads to low frequency and hinders high frequency, and the characteristic of resistance to high current realizes Anti-surging function, and such circuit structure is simple and practical.
Detailed description of the invention
Fig. 1 is provided by the embodiment of the utility model a kind of with electrical with antenna detection and the circuit of Anti-surging function
Schematic diagram.
Specific embodiment
Fig. 1 shows provided by the utility model a kind of with the circuit with antenna detection Yu Anti-surging function, the electricity
Road includes aerial signal input head ANT1, aerial signal input head ANT2, resistance R2, resistance R1, capacitor C2 capacitor C1 and coil
Inductance L1, one end of the aerial signal input head ANT1 is connect with the end thereof contacts of the aerial signal input head ANT2 and position
It sets relatively, the other end of the aerial signal input head ANT1 connects one end of the resistance R2, the other end of the resistance R2
It is separately connected one end of the one end the resistance R1 and capacitor C2, the other end of the aerial signal input head ANT2 is separately connected institute
One end of capacitor C1 and one end of the coil inductance L1 are stated, the other end of the resistance R1 connects power supply, the capacitor C2's
The other end of the other end and the coil inductance L1 are all connected with GND.As aerial signal input head ANT1 and aerial signal input head
When ANT2 is not inserted into signal wire, and when aerial signal input head ANT1 and aerial signal input head ANT2 are open circuit, then ANT_
Voltage is 3.3V at DIAG, is detected as high level.When aerial signal input head ANT1 and aerial signal input head ANT2 insertion is believed
When number line, and aerial signal input head ANT1 and aerial signal input head ANT2 is short circuit, then voltage is 0.3V ANT_DIAG at,
It is detected as low level.And the two elements of resistance R2, coil inductance L1 are in cable TV signal frequency that (49.75MHz is extremely
Respectively in high impedance and high induction reactance in 863.25MHz), signal cannot be passed to other places, Zhi Nengtong by the two elements
Cross capacitor C1 output.So this circuit has low-loss feature to signal, and works as and have surge voltage in the aerial signal of input
When, because coil inductance L1 is low-resistance to surge, surge current can lead the earth by L1, to achieve the purpose that Anti-surging.
The coil turn of the coil inductance L1 is 17 circles.
The internal diameter of the coil inductance L1 is 2.3mm.
The line footpath of the coil inductance L1 is 0.4mm.
The inductance of the coil inductance L1 is 198.6nH.
Antenna detection is realized by using such circuit, and is led to low frequency by using big line footpath coil inductance and hindered high frequency,
The characteristic of resistance to high current realizes Anti-surging function, and such circuit structure is simple and practical.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (5)
1. a kind of with the circuit with antenna detection Yu Anti-surging function, it is characterised in that: the circuit includes that aerial signal is defeated
Enter an ANT1, aerial signal input head ANT2, resistance R2, resistance R1, capacitor C2 capacitor C1 and coil inductance L1, the antenna letter
One end of number input head ANT1 is opposite with the connection of the end thereof contacts of the aerial signal input head ANT2 and position, the antenna letter
The other end of number input head ANT1 connects one end of the resistance R2, and the other end of the resistance R2 is separately connected the resistance R1
The other end of one end and one end of capacitor C2, the aerial signal input head ANT2 is separately connected one end and the institute of the capacitor C1
One end of coil inductance L1 is stated, the other end of the resistance R1 connects power supply, the other end of the capacitor C2 and coil electricity
The other end of sense L1 is all connected with GND.
2. circuit according to claim 1, which is characterized in that the coil turn of the coil inductance L1 is 17 circles.
3. circuit according to claim 2, which is characterized in that the internal diameter of the coil inductance L1 is 2.3mm.
4. circuit according to claim 3, which is characterized in that the line footpath of the coil inductance L1 is 0.4mm.
5. circuit according to claim 4, which is characterized in that the inductance of the coil inductance L1 is 198.6nH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821367655.2U CN209640417U (en) | 2018-08-23 | 2018-08-23 | It is a kind of with the circuit with antenna detection Yu Anti-surging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821367655.2U CN209640417U (en) | 2018-08-23 | 2018-08-23 | It is a kind of with the circuit with antenna detection Yu Anti-surging function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209640417U true CN209640417U (en) | 2019-11-15 |
Family
ID=68471924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821367655.2U Active CN209640417U (en) | 2018-08-23 | 2018-08-23 | It is a kind of with the circuit with antenna detection Yu Anti-surging function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209640417U (en) |
-
2018
- 2018-08-23 CN CN201821367655.2U patent/CN209640417U/en active Active
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