Exciter
— Antenna type used as exciter
dipole
(default) | any single-element antenna object
These days it is very important to sort out the software which is best suited to our required antenna design. Complex antenna structures cannot be simulated.
Antenna type used as an exciter, specified as any single-element antenna object. Except reflector and cavity antenna elements, you can use any of the single elements in the Antenna Toolbox™ as an exciter.
Example:
'Exciter',horn
Example:
ant.Exciter = horn
Radius
— Radius of parabolic reflector
0.1500
(default) | positive scalar integer
Radius of the parabolic reflector, specified as a positive scalar integer in meters.
Example:
'Radius',0.22
Example:
ant.Radius = 0.22
Data Types:
double
FocalLength
— Focal length of parabolic dish
0.0750
(default) | positive scalar integer
Focal length of the parabolic dish, specified as a positive scalar integer in meters.
Example:
'FocalLength',0.0850
Example:
ant.FocalLength = 0.0850
Data Types:
double
FeedOffset
— Signed distance from focus
[0 0 0]
(default) | three-element vector
Signed distance from the focus of the parabolic dish, specified as a three-element vector in meters. By default, the antenna exciter is at the focus of the parabola. Using the
FeedOffset
property, you can place the exciter anywhere on the parabola.Example:
'FeedOffset',[0.0850 0 0]
Example:
ant.FeedOffset = [0.0850 0 0]
Data Types:
double
Load
— Lumped elements
[1x1 lumpedElement] (default) | lumped element object handle
Lumped elements added to the antenna feed, specified as a lumped element object handle. For more information, see
lumpedElement
.Example:
'Load',lumpedelement
. lumpedelement
is the object handle for the load created using lumpedElement
.![Software Software](http://www.l-com.com/multimedia/diagrams/d_HG5829D_1.gif)
Example:
ant.Load = lumpedElement('Impedance',75)
Tilt
— Tilt angle of antenna
0
(default) | scalar | vector
Tilt angle of the antenna, specified as a scalar or vector with each element unit in degrees. For more information, see Rotate Antennas and Arrays.
Example:
'Tilt',90
Example:
'Tilt',[90 90]
,'TiltAxis',[0 1 0;0 1 1]
tilts the antenna at 90 degree about two axes, defined by vectors.Data Types:
double
TiltAxis
— Tilt axis of antenna
[1 0 0]
(default) | three-element vector of Cartesian coordinates | two three-element vectors of Cartesian coordinates | 'X'
| 'Y'
| 'Z'
Tilt axis of the antenna, specified as:
- Three-element vectors of Cartesian coordinates in meters. In this case, each vector starts at the origin and lies along the specified points on the X-, Y-, and Z-axes.
- Two points in space, each specified as three-element vectors of Cartesian coordinates. In this case, the antenna rotates around the line joining the two points in space.
- A string input describing simple rotations around one of the principal axes, 'X', 'Y', or 'Z'.
For more information, see Rotate Antennas and Arrays.
Example:
'TiltAxis',[0 1 0]
Example:
'TiltAxis',[0 0 0;0 1 0]
Example:
ant.TiltAxis = 'Z'