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Magnetic Loop Antenna

This small transmitting loop antenna is 1 meter high above average ground, so the radiation pattern is not donut-shaped as expected for a small loop in free space. The value of the tuning capacitor is indicated for each resonance frequency.

Large loop: 70 cm in diameter, RG-8 cable.

Small loop: 15 cm in diameter, RG-6 cable. Inductive coupling between the feedline and the large loop, spacing of 2 cm.

The color scale on the loops indicates the current flowing for a reference voltage of 1 V.

Download the project files from this link >.

Go to AN-SOF main menu > Run > Run Bulk Simulation and select the five “.nec” files to run the calculations automatically. You can do it with the trial version of AN-SOF.

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