Design a vertical-plane delta-loop antenna for a single amateur HF band, in one of two different configurations:
For each configuration, different feed-point positions in the loop may be chosen, each of which will result in the antenna displaying different
polarization properties, radiation patterns and feed-point impedances.
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Delta loop antenna designer
Antenna feed-point: ⬥
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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 -
generally speaking, when an antenna is erected on a hill-top or mountain summit, surrounding sloping ground will often cause angles in
the elevation radiation pattern to be lowered in the direction of the
slope.
The degree to which the elevation pattern may be lowered depends on many factors, including the main configuration of your delta-loop
antenna (whether apex-up or apex-down), and the choice of feed-point position, both of which affect the polarization direction.
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: |
View VSWR chart: | |
Impedance curves scales: | |
View currents diagram: | |
View Smith chart: | |
Antenna gains at 0° elevation: |
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Antenna impedance: | |
Frequency range: | |