Can be built from wire for portable use or aluminum tubing for permanent installations. It typically has a 50-ohm impedance, requiring no complex matching networks. A Design Study of Printed Moxon Antenna
for a particular HF band (e.g., 20m, 40m). hf antennas for all locations moxon pdf hot
If you prefer a physical copy for your workbench, it is available from several major retailers: Can be built from wire for portable use