biquad
Create biquad or double-biquad antenna
Description
The biquad
antenna is center fed and symmetric about its
origin. The default length is chosen for an operating frequency of 2.8
GHz.
The width of the strip is related to the diameter an equivalent cylinder:
, where:
d is the diameter of equivalent cylindrical dipole.
r is the radius of equivalent cylindrical dipole.
For a given cylinder radius, use the cylinder2strip
utility function to calculate the equivalent width. The
default strip dipole is center-fed. The feed point coincides with the origin. The origin
is located on the yz- plane.
Creation
Description
creates a biquad
antenna.bq
= biquad
creates a
biquad antenna with additional properties specified by one or more
name-value pair arguments. bq
= biquad(Name,Value)Name
is the property name and
Value
is the corresponding value. You can specify
several name-value pair arguments in any order as Name1
,
Value1
, ...
,
NameN
, ValueN
. Properties not
specified retain their default values.
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 R2015b