Patent ID: 6940264

Claim:
A near field probe comprising: an antenna having a first dipole and a second dipole for measuring an electromagnetic field, said antenna producing an electrical signal having an output voltage indicative of a field strength for said electromagnetic field; a first diode having an anode connected to the first dipole of said antenna and a cathode connected to the second dipole of said antenna; a second diode having an anode connected to the second dipole of said antenna and a cathode; a first capacitor having a first terminal connected to the cathode of said second diode and a second terminal, wherein said first diode, said second diode and said first capacitor double the output voltage of the electrical signal produced by said antenna; a transmission line transformer having an electrical signal input connected to the cathode of said second diode and the second terminal of said first capacitor, said transmission line transformer isolating said electrical signal from ground providing a signal strength efficiency of approximately ninety eight percent.