Hey,
I am doing a mini project on rf signal detection(detected by cell phones) using a 5 inch long antenna and IC CA 3130 op amp as a currrent to voltage regulator. The circuit diagram I found online is attached in this. Can anyone help me to understand why have we chosen the capacitor C1(0.22), it acts like a loop antenna. I just want to know how did we come to this value? and what other values will work?
Thank you
I am doing a mini project on rf signal detection(detected by cell phones) using a 5 inch long antenna and IC CA 3130 op amp as a currrent to voltage regulator. The circuit diagram I found online is attached in this. Can anyone help me to understand why have we chosen the capacitor C1(0.22), it acts like a loop antenna. I just want to know how did we come to this value? and what other values will work?
Thank you