Each band generally uses a driven element and reflector. Folded geometry reduces turning radius while retaining useful directivity.
Antennas · F1SYH
Hexbeam
The Hexbeam is a compact directional wire antenna using folded elements supported by six spreaders.
HF
Directive
Multibande
Operating principle
Main characteristics
Typical gain
≈ 5 à 7 dBi
Impedance
Proche de 50 Ω
Polarization
Horizontale
Difficulty
Avancée
Dimensions and design
Dimensions differ between classic and broadband versions. Plans must not be mixed between the two geometries.
Construction and tuning
Step 1
Build a strong central hub.
Step 2
Install six identical insulated spreaders.
Step 3
Measure every wire pair accurately.
Step 4
Maintain vertical spacing.
Step 5
Install multiband feed and a choke.
Advantages
- Small turning radius.
- Several bands on one structure.
- Lower weight than many aluminium beams.
- Good front-to-back performance.
Limitations
- Complex mechanical structure.
- Many wires and attachment points.
- Sensitive to spacing errors.
- Weather and UV aging.
History and origin
The modern Hexbeam geometry was popularized by several amateur experimenters. Broadband variants later improved band coverage.
Safety
Inspect spreaders, cords, insulators and hub fasteners regularly.