monocone
Description
The monocone
object creates a monocone antenna on a
circular ground plane. A classical monocone antenna consists of a cone and a ground
plane. To increase the bandwidth of the antenna, you can modify the antenna by merging
the cone with a circular cylinder. By default, the monocone
object
creates the modified version.
Create a classical monocone antenna (without the cylinder on top) using one of these methods:
Set the height of the antenna to equal the sum of the cone height and the feed height.
Set the cone height to equal half of the difference between the total height and the feed height. Then set the radius at the aperture to twice the radius at the junction.
Creation
Description
creates a
monocone antenna with the feedpoint at the center of the ground plane. The
default dimensions are for a resonant frequency of 3.8 GHz.ant
= monocone
sets
properties using one or more name-value pairs. For example, ant
= monocone(Name,Value)ant =
monocone('Height',0.0560)
creates a monocone antenna with a
total height of 0.0560 meters.
Properties
Object Functions
axialRatio | Calculate and/or plot axial ratio of antenna or array |
bandwidth | Calculate and/or plot absolute bandwidth of antenna |
beamwidth | Beamwidth of antenna |
charge | Charge distribution on antenna or array surface |
coneangle2size | Calculates equivalent cone height, broad radius, and narrow radius |
current | Current distribution on antenna or array surface |
design | Design prototype antenna or arrays for resonance around specified frequency or create AI-based antenna from antenna catalog objects |
efficiency | Radiation efficiency of antenna |
EHfields | Electric and magnetic fields of antennas or embedded electric and magnetic fields of antenna element in arrays |
impedance | Input impedance of antenna or scan impedance of array |
info | Display information about antenna, array, or platform |
memoryEstimate | Estimate memory required to solve antenna or array mesh |
mesh | Mesh properties of metal, dielectric antenna, or array structure |
meshconfig | Change meshing mode of antenna, array, custom antenna, custom array, or custom geometry |
optimize | Optimize antenna or array using SADEA optimizer |
pattern | Plot radiation pattern and phase of antenna or array or embedded pattern of antenna element in array |
patternAzimuth | Azimuth plane radiation pattern of antenna or array |
patternElevation | Elevation plane radiation pattern of antenna or array |
rcs | Calculate and plot monostatic and bistatic radar cross section (RCS) of platform, antenna, or array |
resonantFrequency | Calculate and/or plot resonant frequency of antenna |
returnLoss | Return loss of antenna or scan return loss of array |
show | Display antenna, array structures, shapes, or platform |
sparameters | Calculate S-parameters for antennas and antenna arrays |
vswr | Voltage standing wave ratio (VSWR) of antenna or array element |
Examples
References
[1] McDonald, James L., and Dejan S. Filipovic. “On the Bandwidth of Monocone Antennas.” IEEE Transactions on Antennas and Propagation 56, no. 4 (April 2008): 1196–1201. https://doi.org/10.1109/TAP.2008.919226.
Version History
Introduced in R2020a