Rohde & Schwarz NRP-Z11
Average Power Sensor, 10 MHz - 8 GHz

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Product Overview

The Power Sensors R&S NRP-Z11, R&S NRP-Z21, R&S NRP-Z22, R&S NRP-Z23 and R&S NRP-Z24 fuse multiple-path architecture, multiple-diode technology and a simultaneously scanning multichannel measurement system into a unique high-performance concept. Multiple-path architecture means combining two or three diode detectors to obtain a large dynamic range for modulated signals. This is achieved by operating each detector exclusively in the square-law region, and only using the optimally driven detectors for the measurement. Multiple diodes comprise several zero-bias Schottky diodes connected in series and integrated on one chip. When used in an RF detector, they expand its square-law region, because the measurement voltage is split among several diodes – so that each one is driven less – while at the same time the detected voltages of the individual diodes are added.

Features and specifications of the Rohde & Schwarz NRP-Z11 include:

• 10 MHz - 8 GHz frequency range
• 200 pW - 200 mW power
• The multipath architecture - 3 signal paths, each fitted with triple diodes
• 6 dB wide overlap ranges, smooth transitions
• Simultaneous scanning and analysis
• Chopper stabilization of the signal paths for repetitive signals
• Advantages over conventional technology include: high signal/noise ratio throughout, low modulation effect, negligible delays and discontinuities when switching signal paths, and the ability to perform a time-domain analysis of the test signal within the available video bandwidth.These sensors not only compete with peak power meters, they are even superior in two respects:No restrictions on the RF bandwidth of the test signal
• Large dynamic range

Other models in this series:

• Rohde & Schwarz NRP-Z37 Power Sensor