Antenna Pattern And Body Mask Files - R&S SMW-K44 User Manual

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A.3 Antenna Pattern and Body Mask Files
Option: R&S SMW-K108
Three files describe an antenna: the body mask file *.body_mask, the antenna pat-
tern *.ant_pat file and the phase response *.phase file.
The *.ant_pat file describes the power response matrix of each antenna. The instru-
ment retrieves the phase response matrix from the *.phase file. If the required
*.phase file does not exist, a zero-phase response is assumed. Antenna pattern and
phase files must have the same file name and must be stored in the same directory.
These files should have the same content but different data section <data> (see
Table
The following are two examples of the file format: an extract of the description of an
antenna pattern with three antennas and description of an antenna with four sectors.
Example: Antenna pattern with three antennas
The following is a file content extract from the predefined file
Space_Vehicle_3_antennas.body_mask
<?xml version="1.0" encoding="ISO-8859-1"?>
<antenna_pattern>
<antenna_descr count="3" use_same_pattern="no">
</antenna_descr>
<az_res> 1.00000000e+000 </az_res>
<elev_res> 1.00000000e+000 </elev_res>
<data>
User Manual 1178.6379.02 ─ 01
Parameter
<maxrollangle>
<maxrollrate>
<maxrollacceleration>
<maxrolljerk>
<proximity>
A-4)
<antenna id="1" RollAxis_X_offset="0" PitchAxis_Y_offset=" 0.0000"
YawAxis_Z_offset=" 0.2000"
Roll_offset="0" />
<antenna id="2" RollAxis_X_offset="0" PitchAxis_Y_offset="-0.1414"
YawAxis_Z_offset="-0.1414"
Roll_offset="120"/>
<antenna id="3" RollAxis_X_offset="0" PitchAxis_Y_offset=" 0.1414"
YawAxis_Z_offset="-0.1414"
Roll_offset="240" />
User Environment Files

Antenna Pattern and Body Mask Files

Description
Maximum roll/bank angle (rad)
Maximum rate of change of the roll/bank (rad/s)
Maximum second rate of change (acceleration) of the roll/
bank (rad/s2)
Maximum third rate of change (jerk) of the roll/bank
(rad/s3)
Specifies the maximum allowed deviation from the original
waypoints (m)
Yaw_offset="0" Pitch_offset="0"
Yaw_offset="0" Pitch_offset="0"
Yaw_offset="0" Pitch_offset="0"
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