| Electronics > Beginners |
| Protection for GPS input |
| (1/2) > >> |
| rakeshm55:
Hi, How to protect Antenna input signals from ESD? I have connected a low capacitance ESD diode. What is the standard mechanism used to protect GPS module (Sensitive to ESD) from ESD faults. |
| Yansi:
You have your answer on the schematic. Other option is to use a diode clamp. |
| dmills:
A Quarter wave stub to ground should work and can be printed right onto the board. regards, Dan. |
| radiolistener:
Here is typical solution to protect from overvoltage. In your case, you can use 1:1 RF transformer. |
| Yansi:
--- Quote from: dmills on May 11, 2019, 02:46:06 pm ---A Quarter wave stub to ground should work and can be printed right onto the board. regards, Dan. --- End quote --- Will ruin impedance matching and will work likely only rather narrowband. Also please keep in mind that GPS is like what... 1600MHz? The 1/4 wave stub will be unacceptably long for most applications on a PCB. |
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