Delta loop antenna designer

Design a delta-loop antenna for a single amateur HF band, which requires one single central support only, and which propagates at low elevation angles, predominantly in vertical polarization. These attributes make the delta-loop antenna an attractive proposition for single-band DX work.  Read more...

Set antenna color:    
Band: kHz
Loop length: m?
Length units
Antenna wire diameter
Wire diam. : mm
Antenna foot height
Foot height: m
Antenna apex height above foot, as fraction of wavelength
Apex height: λ m
Antenna apex angle  (calculated)
Apex angle: degrees
Antenna feed-point impedance  (estimated)
Impedance: Ω  ?
Antenna overview
Antenna sections lengths Foot height Full height Est. F-P
#1 #2 #3 #4
Press the "Show antenna" button to display your antenna
configuration here in interactive 3D graphics mode
Antenna feed-point:

Antenna performance

Here you can generate plots of propagation patterns, VSWR chart, antenna currents and Smith charts 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 your antenna will perform in the field.

Choose ground type of
land in the vicinity
of the antenna:
   Conductivity: S/m    Dielectric const.: F/m
Choose patterns to view:
View VSWR chart:
Impedance curves scales:   
View currents diagram:
View Smith chart:
Antenna gains
at 0° elevation:
Antenna impedance:
Frequency range: