Atec Anristu-MA2400A Series - Manual

MICROWAVE COMPONENTS
504 For product ordering information, see pages 5 – 12
POWER SENSORS
MA2400A/B Series
10 MHz to 50 GHz
The MA2400A/B Series Power Sensors consist of MA247XA Series
Power Sensors, MA246XA/B Series Power Sensors, MA248XA
Series Universal Power Sensors, MA242XA/B Series Thermal Power
Sensors, and MA244XA Series High Accuracy Power Sensors.
These units are broadband microwave measurement components.
All models except the MA246XA/B Series Power Sensors, are used
with the ML2430A Series Power Meters. The MA246XA/B Series
Power Sensors are used only with the ML2400A Series Power Meter.
Features
• 10 MHz to 50 GHz range
• N, K, and V type RF connectors
• 90 dB dynamic range provides stable power readings to –70 dBm
• MA244XA Series High Accuracy Power Sensors contain an addi-
tional matching circuit to improve return loss performance
• MA242XA/B Series Thermal Power Sensors provide measuring
speeds to 4 ms rise and fall times in addition to exceptional return
loss performance
• MA246XB power sensors have fast 1 millisecond rise and fall times
needed for CDMA measurements
• MA248XA Universal sensors measure average power of modulat-
ed signals such as W-CDMA, multi-tone, etc.
• All MA2400A/B Series Power Sensors contain internal EEPROMs
for storage of calibration data as a function of frequency, power,
and temperature. This allows the power meter to interpolate and
correct readings automatically
Fast thermal sensors
Anritsu’s thermal sensors provide excellent power measurement ac-
curacy over 50 dB of dynamic range with more speed than any oth-
er thermal sensor available (see fig. 1). Thermal sensors use
Seebeck elements where the combined effect of a thermal gradient
and charge migration between dissimilar metals gives a true reading
of average power on any incident waveform. Anritsu thermal sensors
have class-leading SWR and built in EEPROM with calibration factor
and linearity correction data. This results in assured accuracy
when measuring any signal. Anritsu’s fast thermal power sensors
improve sensor rise time and fall time to less than 4.0ms– an or-
der of magnitude faster than previous thermal sensors. Settled
power measurements are now 10 times faster; that means re-
duced test time.
MA242XA Series
Thermal Sensors
Traditional
Thermal Sensor
1000
100
10
1
0.1
-70 -60 -50 -40 -30 -20 -10
0
10 20
Rdgs/sec
Pin
Standard diode sensors
Diode sensors have greater speed, sensitivity and dynamic range
than thermal sensors (see fig. 2). All Anritsu diode sensors use a
dual diode architecture that gives improved sensitivity and dynamic
range over single diode architectures. The MA2470A Series Power
Sensors 90 dB dynamic range is both fast and accurate. Linearity is
better than 1.8%, typically < 1.0% through 18 GHz.
MA2470A power sensors offer an ideal combination of speed and
dynamic range for general purpose power measurements. A single
sensor replaces the two sensors that were previously required with
sensors limited to 50 dB dynamic range.
MA2470A, Sampling Rate
MA2470A, Reading Rate
MA2470A, GPIB Continuous
Auto-Averaged Readings
Traditional
Diode Sensor
Traditional
Thermal Sensor
100000
10000
1000
100
10
1
0.1
-70 -60 -50 -40 -30 -20 -10
0
10 20
Rdgs/sec
Pin
MA2472A
MA2475A
Fig. 1 Fast Thermal Sensors
Fig. 2 Standard Diode Sensors