Antenna and electromagnetic simulation of metallic objects
Input form tabSimulation results tab
IMPORTANT: no results are available yet because the simulator hasn't been run. Click here to run the simulator:
IMPORTANT: the results below pertain to a previous simulator run. Schematic changes have been since made that aren't included in the results. Click here to run the simulator to update the results:
This form is longer than a single screen height, and therefore it's scrollable (a scrollbar is either visible or will appear on the right side of this form container upon swiping the trackpad to scroll).
Panel width:
Form panel width: pixels
Allows to change the width of the form planel relative to the schematic panel on the right.
Example library of common antenna configurations
Select an example from the dropdown to load it:
Added wires (after adding a wire, it will appear in this list):
No wires added as yet...
Set simulation frequency:
Frequency: MHz
(between 0.5 MHz and 10,000 MHz / 10 GHz)
Antenna calculators and wizards:
The wizards help generate many antenna types, but the quickest way to see the simulator at work is to instead select a built-in example from the example library dropdown above.
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Add wire by coordinates:
From point (x1, y1, z1):
x1:
y1:
z1:
To point (x2, y2, z2):
x2:
y2:
z2:
Add wire in polar coordinates:
From point (x1, y1):
x1:
y1:
Angle in degrees above the x-axis (theta; azimuth; 0 - 360):
degrees
Wire length in wavelengths (rho; wires can also be longer than one wavelength; 0.5 is a typical choice for a dipole antenna):
lamdas
(The wavelength is determined by the chosen frequency.)
Add wire in spherical coordinates:
From point (x1, y1, z1):
x1:
y1:
z1:
Angle in degrees above the x-axis (theta, azimuth, 0 - 360):
degrees
Elevation angle with the z-axis (phi, elevation, 0 - 180):
degrees
Wire length in wavelengths (rho; wires can also be longer than one wavelength; 0.5 is a typical choice for a dipole antenna):
lamdas
(The wavelength is determined by the chosen frequency.)
Delete wire
ID of wire to delete:
Add Excitation to wire:
ID of wire to add excitation to:
Excitation voltage:
V
Excitation phase:
°
(Excitation frequency is determined by the global frequency as set above.)
Excitation to be located at the center of the wire (common for dipole antennas)
Excitation to be located at the start of the wire (common for monopole antennas)
Excitation to be located at the end of the wire
Excitation to be located at a custom wire location as specified below
Excitation at a percentage of the distance between the start and end of the wire:
%
Excitation to be located at a custom wire location as specified below
Excitation at a segment index along the wire (from 1 to the index of the last wire segment, which is the same as the total number of wire segments, as reported in the wire list above):
(If an excitation was already added to the wire specified by the ID field, it will overwrite the existing one.)
(Remove excitation from the wire specified by the ID field, if an excitation was previously added.)
Add load to wire:
(It's recommended to first run the simulation without a load, and only afterwards refine the simulation by adding a load as necessary. When adding a load, it's scaled internally for better results.)
ID of wire to add a load to:
Load resistance:
Ohms
Load reactance:
Ohms
(negative numbers for net capacitance and positive for net inductance)
Load to be placed at center of the wire
Load to be placed at a custom wire location as specified below
Load placement at a percentage of the distance between the start and end of the wire:
%
Load to be placed at a custom wire location as specified below
Load placement at a segment index along the wire (from 1 to the index of the last wire segment, which is the same as the total number of wire segments, as reported in the wire list above):
(If a load was already added to the wire specified by the ID field, it will overwrite the existing one.)
(Remove load from the wire specified by the ID field, if a load was previously added.)
Run simulation:
Total number of segments: 0
(The simulation supports up to 5,000 segments at present. A number of segments greater than 2000 may take a number of minutes to process. For large simulations, free alternatives like EZNEC, 4NEC2, or MMANA-GAL, may be a better fit)
(For multi-wire antennas, some aspects of the computation will made more more precise in future updates to the simulator.)