ORBIT FR StarBot 4300 - Manual (Page 4)

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Standard system components
Arch
• Different arch sizes available
• A choice of probes available
according to the frequency
range
Positioner
• An innovative 6 axis portable
robot offering versatile
positioning of a probe array
ORBIT/FR positioning
equipment catalog
Antennas
• A choice of reference
antennas (horns, dipoles
and loops) and a single
probe positioner.
MVG antenna catalog
Absorbers
and anechoic
chambers
• A selection of standard,
adapted and specialty
absorbers
• Anechoic chambers or outdoor
radomes with integrated
design, production, installation
and testing services
AEMI absorber catalog
Mechanical characteristics &
RF equipment characteristics
Angular coverage 182.95°
Probe array diameter 6 m
Frequency range 500 MHz - 18 GHz
Measurement capability CW, pulsed mode
Available movement 6 axis portable robot
(see figure on next page).
ANGLE BETWEEN PROBES
500 MHz - 6 GHz 2.95°
6 GHz - 18 GHz 2.95°
NUMBER OF PROBES
500 MHz - 6 GHz 63 + 1 ref. channel
6 GHz - 18 GHz 63 + 1 ref. channel
System specifications
Measurement time for 20 frequencies* < 5 min
Typical dynamic range 45 - 50 dB
10 dBi AUT 20 dBi AUT 30 dBi AUT
PEAK GAIN ACCURACY (dB)
0.07 - 0.3 GHz - - -
0.3 - 0.4 GHz - - -
0.5 - 0.8 GHz ± 1.2 dB ± 1.0 dB ± 0.7 dB
0.8 - 1.0 GHz ± 0.8 dB ± 0.7 dB ± 0.7 dB
1.0 - 6.0 GHz ± 0.8 dB ± 0.7 dB ± 0.7 dB
6.0 - 18.0 GHz ± 1.1 dB ± 0.9 dB ± 0.8 dB
PEAK GAIN REPEATABILITY (dB)
-10 dB sidelobes accuracy (dB)
0.5 - 0.8 GHz ± 1.5 dB ± 0.9 dB ± 0.6 dB
0.8 - 1.0 GHz ± 1.3 dB ± 0.8 dB ± 0.6 dB
1.0 - 6.0 GHz ± 1.2 dB ± 0.8 dB ± 0.6 dB
6.0 - 16.0 GHz ± 1.5 dB ± 1.1 dB ± 0.9 dB
16.0 - 18.0 GHz ± 1.5 dB ± 1.1 dB ± 0.9 dB
-20 dB sidelobes accuracy (dB)
0.5 - 0.8 GHz - ± 1.5 dB ± 0.8 dB
0.8 - 1.0 GHz - ± 1.3 dB ± 0.8 dB
1.0 - 6.0 GHz - ± 1.2 dB ± 0.8 dB
6.0 - 16.0 GHz - ± 2.2 dB ± 1.8 dB
16.0 - 18.0 GHz - ± 2.2 dB ± 1.8 dB
* • Hemispherical measurement surface (over 180° in Azimuth - typical for
antenna measurement around an aircraft)
• No oversampling
• CW mode: acquisition is asynchronous of RF signal. For pulsed mode
with acquisition synchronous of RF pulse signal, the measurement time
will be linked to the duty cycle of RF pulse signal
I StarBot 4300
A single probe positioner
Photo courtesy of Alenia Aer
onautica
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