Calculating the "Magic Wand" antenna by WB5ISM
The idea for this two-meter full-wave loop antenna came to QST in February 1973.
Antenna description is here: The Magic Wand Antenna
The length of the tuning line conductors for connecting the
power cable is approximately 70% of the "A" side of the square.
Example of a 403 MHz antenna for receiving weather balloons (RA3TOX)
Example of connecting the power cable. After tuning the antenna to
resonance, the cable can be soldered directly to the terminals.