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User20527
Level 1
Level 1
First question asked
Hello.

I have been using the diodes as an RF detector for 2.4GHz signals. After few tests the diodes keep breaking down and I have to change the diodes. Reverse Voltage ( Vr) is below the max ratings for both of them. Circuit used for this is in the document "RF and microwave power detection with
Schottky diodes" as attached.

Can you please help me understand why this is happening and any suggestions on how I can stop this from happening?

Thank you
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1 Solution
Kieran_Pan
Moderator
Moderator
Moderator
250 sign-ins 10 likes received First question asked

Hello,

Have you checked that the bypass capacitor is chosen to be 1nF?
So that it has low ohmic capacitive reactance up to 6 GHz.
RL between 10kohm and 1Mohm

Best regards,
Kieran

View solution in original post

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1 Reply
Kieran_Pan
Moderator
Moderator
Moderator
250 sign-ins 10 likes received First question asked

Hello,

Have you checked that the bypass capacitor is chosen to be 1nF?
So that it has low ohmic capacitive reactance up to 6 GHz.
RL between 10kohm and 1Mohm

Best regards,
Kieran

0 Likes