Moxon antenna designer
Design a lightweight Moxon antenna for the upper HF bands. Named after Les Moxon, G6XN who developed it in the early 1950's, and later refined by L. B. Cebik, W4RNL, this antenna is basically a compact version of a 2-element Yagi with folded elements, designed for a single band, with a feed-point impedance very close to 50 ohms. It is constructed using either wire or lightweight tubing, displays good forward gain and very good front-to-back F/B ratio. Read more...
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Set antenna color: |
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Press the "Show antenna" button to display your antenna
configuration here in interactive 3D graphics mode
Antenna feed-point: ⬥
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Antenna performance
Here you can generate plots of radiation patterns, VSWR chart, antenna currents diagram and Smith chart for your antenna over a
choice of ground types. By changing the physical dimensions of the antenna, and refreshing these plots, you can learn a lot about
how such antennas will perform in the field.
Please note that
radiation patterns are here modelled over flat ground -
when the antenna is erected on a hill-top or mountain summit, the surrounding sloping ground will generally cause angles in
the elevation radiation pattern to be lowered in the direction of the
slope: the steeper the slope, the lower the effective elevation take-off angle will be, and the better the chances of making
long-distance contacts.
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Choose ground type of
land in the vicinity of the antenna: |
Conductivity:
S/m
Dielectric const.:
F/m
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| View radiation patterns: |
Set elevation angle for azimuth plot:
°
Set azimuth angle for elevation plot: °
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| View VSWR chart: | |
| Impedance curves scales: | |
| View currents diagram: | |
| View Smith chart: | |
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Antenna gains at 0° elevation: |
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| Antenna impedance: | |
| Frequency range: | |