fractalKoch
Create Koch curve fractal dipole or loop antenna on xy- plane
Description
The fractalKoch
object creates a Koch curve fractal dipole
or loop antenna on an xy- plane. These fractals are used in multiband
and wideband applications like Global System for Mobile Communications (GSM), Universal
Mobile Telecommunication Service (UMTS), and Bluetooth.
A fractal antenna uses a self-similar design to maximize the length or increase the perimeter of a material that transmits or receives electromagnetic radiation within a given volume or area. The main advantage of fractal antennas is that they are compact, which is an important requirement for small and complex circuits. Fractal antennas also have more input impedance or resistance due to increased length or perimeter, respectively.
All fractal antennas are printed structures that are etched on a dielectric substrate.
Creation
Description
creates a Koch
curve fractal antenna on an X-Y plane. The default is a dipole with Koch
curve length chosen for an operating frequency of 0.86 GHz.ant
= fractalKoch
sets properties using one or more name-value pairs. For example,
ant
= fractalKoch(Name,Value)ant = fractalKoch('NumIterations',4)
creates a Koch
curve fractal antenna with four iterations. Enclose each property name in
quotes.
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 |
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
Version History
Introduced in R2018b