Rohde and Schwarz NRP-Z22 Three-Path Diode Power Sensor, 2 nW to 2 W, 10 MHz to 18 GHz

The Rohde & Schwarz NRP-Z22 is a three-path diode power sensor engineered for precision power measurements across a 90 dB dynamic range from 2 nW to 2 W. Operating from 10 MHz to 18 GHz, this sensor delivers fast, accurate measurements of both CW and modulated signals with total uncertainty better than 0.2 dB up to 3.6 GHz and 0.3 dB up to 8 GHz. The three-path diode architecture minimizes harmonic sensitivity and ensures reliable inter-range performance in research, development, and production environments.

Technical Specifications

Measurement Range: 2 nW to 2 W (−57 dBm to +33 dBm); −67 dBm lower limit without attenuator; 90 dB dynamic range for CW and modulated signals Frequency Range: 10 MHz to 18 GHz with impedance matching (SWR) of <1.14 (10 MHz–4 GHz), <1.20 (4–12.4 GHz), and 9500 measurements/s (buffered) Uncertainty: <0.2 dB to 3.6 GHz; <0.3 dB to 8 GHz; absolute 0.130–0.150 dB; relative 0.039–0.148 dB at +20 °C to +25 °C Rise/Fall Time: <13 ns Video Bandwidth: 100 kHz (trace/timeslot modes); 30 MHz (standard) Connector: N connector (male)

Key Features

• Continuous average, burst average, timeslot/gate average, and trace measurements


• Automatic burst detection, pulse analysis, and statistical analysis


• High resolution mode and trigger master capability


• Operates with R&S NRP2 base unit or via USB (requires R&S NRP-Z4 adapter, sold separately)


• Supplied with RF power attenuator

Compatibility & Integration Functions with R&S NRP2 base units and laptops/PCs via USB adapter. Supported by Rohde & Schwarz signal generators, signal analyzers, and spectrum analyzers. Compatible with R&S NRPV virtual power meter PC software.