Agilent
U2000 Series USB Power Sensors
Data Sheet
Features
Perform power measurement
without a power meter
Frequency range from 9 kHz to 24
GHz (sensor dependent)
Dynamic range from –60 dBm to
+20 dBm
Internal zeroing capability and
external calibration-free measurements
1
Introduction
The Agilent U2000 Series USB power sensors are average, dynamic wide-range
power sensors that can be used with a PC or any selected Agilent USB-based
instrument. With internal zeroing, there is no need to disconnect the sensor or
power off the device-under-test (DUT). The U2000 Series does not require any
50 MHz reference signal calibration, thus allowing factory calibration to ensure
measurement accuracy.
All the specifi cations provided in this data sheet are valid ONLY after proper
calibration of the power sensor and apply to continuous wave (CW) signals
unless otherwise stated.
Simplifi ed measurement setup
with built-in triggering
The specifi cations are valid for a temperature range from 0 °C to +55 °C unless
otherwise stated. Specifi cations provided for a temperature of 25 °C ± 10
°C are valid for a relative humidity range of 15% to 75% and conform to the
standard environmental test conditions.
The U2000 Series USB power sensors have two independent measurement
paths (high and low power paths) as shown below:
Table 1: Low power path and high power path for Agilent U2000 Series USB power sensors
Sensor Power Range
U2000A, U2001A, U2002A, U2004A –60 dBm to +20 dBm
Low Power Path: –60 dBm to –10dBm
High Power Path: –10 dBm to +20 dBm
Table 2: Product specifi cations for Agilent U2000 Series USB power sensors
Model Frequency Range Maximum SWR (25
°C±10 °C)
U2000A 10 MHz to 18.0 GHz 10 MHz to 30 MHz: 1.15
30 MHz to 2 GHz: 1.13
2 GHz to 14 GHz: 1.19
14 GHz to 16 GHz: 1.22
16 GHz to 18 GHz: 1.26
Maximum SWR (0-55 °C) Maximum Power Connector
10 MHz to 30 MHz: 1.21
30 MHz to 2 GHz: 1.15
2 GHz to 14 GHz: 1.20
14 GHz to 16 GHz: 1.23
16 GHz to 18 GHz: 1.27
+25 dBm (320 mW) average
+33 dBm peak (2 W) <10 us
Ty pe
Type-N (m)
U2001A 10 MHz to 6.0 GHz 10 MHz to 30 MHz: 1.15
30 MHz to 2 GHz: 1.13
2 GHz to 6 GHz: 1.19
U2002A 50 MHz to 24 GHz 50 MHz to 2 GHz: 1.13
2 GHz to 14 GHz: 1.19
14 GHz to 16 GHz: 1.22
16 GHz to 18 GHz: 1.26
18 GHz to 24 GHz: 1.30
U2004A 9 kHz to 6.0 GHz 9 kHz to 2 GHz: 1.13
2 GHz to 6 GHz: 1.19
10 MHz to 30 MHz: 1.21
30 MHz to 2 GHz: 1.15
2 GHz to 6 GHz: 1.20
50 MHz to 2 GHz: 1.15
2 GHz to 14 GHz: 1.20
14 GHz to 16 GHz: 1.23
16 GHz to 18 GHz: 1.27
18 GHz to 24 GHz: 1.30
9 kHz to 2 GHz: 1.15
2 GHz to 6 GHz: 1.20
2
+25 dBm (320 mW) average
+33 dBm peak (2 W) <10 us
+25 dBm (320 mW) average
+33 dBm peak (2 W) <10 us
+25 dBm (320 mW) average
+33 dBm peak (2 W) <10 us
Type-N (m)
3.5 mm (m)
Type-N (m)
Why Zeroing Is Important For U2000 Series USB Power
Sensor?
Zeroing a power sensor is performed to reduce zero offset and noise impact to
improve RF power measurement accuracy. The U2000 Series USB power sensor
has two types of zeroing, namely the Internal Zeroing (INT) and External Zeroing
(EXT).
When performing External Zeroing, the RF signal source (typically signal output
from a device under test) should be turned off or disconnected from the power
sensor input, then the power sensor is zeroed. For Internal Zeroing, the RF signal
source can be turned on or left connected to the power sensor input. The power
sensor will isolate the RF signal source from the diode sensor before zeroing.
Users are recommended to perform external zeroing for input signals power
below -30 dBm to obtain a maximum degree of accuracy in their measurements.
External Zeroing can be used for RF signal level that falls into the power dynamic
range (from –60 dBm to 20 dBm). Figure 1 shows the External Zeroing setting in
the N1918A Power Panel.
Figure 1: Setting External Zeroing (EXT) in the N1918A Power Panel
3
Figure 2: Typical SWR chart for U2000A, 10 MHz to 18 GHz (25 °C ±10 °C)
Figure 3: Typical SWR chart for U2001A, 10 MHz to 6 GHz (25 °C ±10 °C)
4
Loading...