I have an antenna I made with about 2 feet of insulated copper wire, stripped at one end. The antenna is connected to the positive side of a 1000uF capacitor, using this circuit. I am using a 741 op-amp. The negative voltage for it comes from a separate battery with its positive lead connected to ground, and its negative lead connected to the op-amp. When I test the voltage of the output of this op-amp, it is constant. It has no frequency. This leads me to believe that my antenna has absolutely no signals coming from it. How can I fix my antenna?
I am also using a silicon diode.