NumLoops
— Number of loops
2 (default) | scalar integer
Antenna Testing. Jeff and I have just had an enjoyable day outside testing candidate antennas for the Mesh Potato. One small problem with the dual loop biquad wire antennas is a feed arrangement – a small piece of coax would be needed to reach the central feed point. This is fine in a traditional point-point Wifi link, but in a mesh. Theory of BiQuad Antenna Design (now a digital TV channel question) Jan 11, 2013 #1. Hi everyone, I'm Designing a BiQuad antenna for WiFi applications. The design and optimization are relatively simple but i need some references of the theory behind this antenna.
Number of loops for the biquad, specified as a scalar integer. Setting this property to 4 supports a double biquad antenna.
Example:
'NumLoops'
,4
Data Types:
double
ArmLength
— Length of two arms
0.0305 (default) | scalar
Length of two arms, specified as a scalar in meters. The default length is chosen for an operating frequency of 2.8 GHz.
Example:
'ArmLength'
,0.0206
Data Types:
double
Width
— Biquad arm width
1.0000e-03 (default) | scalar
Biquad arm width, specified as a scalar in meters.
Example:
'Width'
,0.006
Data Types:
double
ArmElevation
— Angle formed by biquad arms to X-Y plane
45 (default) | scalar
Angle formed by biquad arms to the X-Y plane, specified a scalar in meters.
Example:
'ArmElevation'
, 50
Data Types:
double
Load
— Lumped elements
[1x1 LumpedElement] (default) | lumped element object handle
Lumped elements added to the antenna feed, specified a lumped element object handle. For more information, see
lumpedElement
.Example:
'Load'
, lumpedelement. lumpedelement
is the object handle for the load created using lumpedElement
.Example:
bq.Load = lumpedElement('Impedance',75)
Tilt
— Tilt angle of antenna
0
(default) | scalar | vector
![Biquad Biquad](http://educypedia.karadimov.info/library/simple_double_quad.gif)
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'
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