Creates birdcage (MRI coil)
The birdcage
object creates to create a birdcage MRI coil.
This antenna is most commonly used in clinical MRI. The antenna structure consists of
two circular coils connected by conductive elements called rungs
. The
number of rungs depends on the size of the coil and is generally an even
number.
The coil is operated at 64 MHz or 128 MHz. The birdcage can be loaded/excited to model a highpass or lowpass coil.
getLowPassLocs | Feeding location to operate birdcage as lowpass coil |
getHighPassLocs | Feeding location to operate birdcage as highpass coil |
show | Display antenna or array structure; display shape as filled patch |
axialRatio | Axial ratio of antenna |
beamwidth | Beamwidth of antenna |
charge | Charge distribution on metal or dielectric antenna or array surface |
current | Current distribution on metal or dielectric antenna or array surface |
EHfields | Electric and magnetic fields of antennas; Embedded electric and magnetic fields of antenna element in arrays |
impedance | Input impedance of antenna; scan impedance of array |
mesh | Mesh properties of metal or dielectric antenna or array structure |
meshconfig | Change mesh mode of antenna structure |
optimize | Optimize antenna or array using SADEA optimizer |
pattern | Radiation pattern and phase of antenna or array; Embedded pattern of antenna element in array |
patternAzimuth | Azimuth pattern of antenna or array |
patternElevation | Elevation pattern of antenna or array |
returnLoss | Return loss of antenna; scan return loss of array |
sparameters | S-parameter object |
vswr | Voltage standing wave ratio of antenna |