The Moxon Rectangle folds these elements. The tips of the driven element and the reflector are bent 90 degrees inward, facing each other. This geometry yields several distinct advantages:
The loop size is too small. Lengthen the elements slightly.
The length of the reflector's rear-facing sides.
Before downloading static PDFs, it is highly recommended to use an automated Moxon calculator. Input your target center frequency and the wire or tubing diameter, and the software generates exact dimensions for lengths, widths, and gap spacing. hf antennas for all locations moxon pdf hot
Use non-conductive, UV-stabilized monofilament line, zip ties, or plexiglass spacers to lock in the exact gap distance (Dimension C) between the driven element and reflector tips.
And if you’ve built a Moxon before, drop your build tips below. 👇
Invented by Les Moxon (G6XN), the Moxon rectangle consists of two parallel elements: a driven element and a reflector, bent into a rectangular or "U" shape. The ends are folded inward, reducing the overall width by about 30–40% compared to a standard two-element Yagi. The Moxon Rectangle folds these elements
First published in 1982 and completely revised and expanded for a second edition in 1993, HF Antennas for All Locations is the culmination of his lifelong work. One reviewer passionately noted that it is "one of the most impressive technical books on any subject that I own," praising the author's complete command of the material, both theoretical and practical. It is this rare synthesis of deep theory and real-world application that makes the book so highly sought after.
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Two small plexiglass or heavy plastic strips (for the tip gaps) One 1:1 current balun UV-rated zip ties and marine-grade epoxy Assembly Instructions: Lengthen the elements slightly
A 20-meter Moxon rectangle reduces that width by approximately 30%, bringing it down to about 23 feet. This smaller turning radius allows operators to mount the antenna on lightweight, inconspicuous television rotors or push-up fiberglass masts. It delivers high performance without drawing unwanted attention from neighbors. 2. Portable and Field Operations (POTA/SOTA)
The brilliance of the Moxon antenna lies in its geometry. A standard two-element Yagi consists of a straight driven element and a straight reflector spaced roughly 0.15 to 0.2 wavelengths apart. The Moxon takes these two elements and folds their ends toward each other.
Conceived by the late Les Moxon (G6XN), the Moxon antenna is a two-element parasitic array that, on the surface, resembles a Yagi-Uda but with a clever twist. The driven element and reflector are folded inward at their ends, forming a rectangular loop. This folding isn't just for aesthetics; it serves two critical functions.
Because the Moxon can be built as a small magnetic loop variant (though less common) or a wire version strung between trees, it offers directivity without a large rotator. Some amateurs hide Moxons in attics or along fences.
This folding mechanism achieves three critical design victories:
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