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Power measurements and statistical data of high-speed wideband signals
Keysight wideband power sensors provide detailed and accurate power measurements for high-frequency applications, up to 40 GHz. Designed for wideband signals, these sensors deliver comprehensive peak power analysis, including peak-to-average ratio and rise / fall time measurements, making them ideal for analyzing complex modulation formats and transient signals. With fast measurement speeds, Keysight wideband power sensors perform in dynamic testing environments, ensuring accurate results for radar systems, wireless communications, and electronic warfare. These sensors offer the precision, speed, and reliability needed for the most demanding power measurement tasks.
Detailed peak power analysis
Enables comprehensive measurements of peak power, peak-to-average ratio, and other statistical data of wideband signals.
Wideband signal measurement
Supports up to 30 MHz video bandwidth for time-domain analysis of fast signal transitions and complex modulation.
High-speed measurements
Provides fast measurement speeds for capturing transient signals and ensuring accurate peak power measurements.
Rise / fall time measurements
Measures the rise and fall times of signals, providing detailed insights into signal transitions and characterization.
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Frequency range
50 MHz to 18 GHz, 50 MHz to 40 GHz
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Power range
-35 dBm to +20 dBm
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Connector type
Type-N, 2.4 mm (m)
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Measurement type
Peak and Average/CW
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Video bandwidth
30 MHz
Most popular configurations
P-Series Wideband Power Sensor, 50 MHz to 18 GHz
P-Series Wideband Power Sensor, 50 MHz to 40 GHz
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Frequently asked questions
A wideband power sensor is an RF sensor designed to capture the instantaneous power envelope of a signal over a broad frequency range and with high time resolution. Unlike traditional average power sensors, wideband sensors can resolve fast transients, pulses, and modulation envelopes in real time.
They are also referred to as peak and average sensors, since they support time-domain measurements, such as peak power and rise / fall time, as well as modulation-independent average power.
Wideband power sensors combine high-speed diode detection, broad video bandwidth, and fast sampling to accurately represent the power envelope of an RF signal:
Diode Detection
The RF signal is converted to a baseband voltage using ultra-fast Schottky diodes capable of tracking rapid envelope changes.
Wide Video Bandwidth
The sensor front-end maintains a wide video bandwidth (often up to 30 MHz) to preserve fast signal transitions, such as short pulses or steep modulation edges.
High-Speed Digitization
The detected envelope is sampled at high rates by an internal ADC to capture the full time-domain waveform with nanosecond-level resolution.
Digital Signal Processing
Embedded DSP calculates key parameters like:
- peak power
- average power (total or gated)
- crest factor
- pulse width, rise/fall time, and duty cycle
Triggering and Gating
Supports internal and external triggers, as well as time-gated measurements, allowing users to isolate and analyze specific pulse or burst segments.
Wideband power sensors are ideal for time-domain analysis and precision power characterization of pulsed, bursty, or modulated signals.
Key applications include:
Radar and EW System Testing
Measure peak power, pulse characteristics, and waveform integrity in pulsed radar systems.
Power Amplifier Characterization
Analyze amplifier behavior under real-world modulation or pulsed drive, including crest factor and overshoot.
Wireless Communication Testing
Capture and analyze envelope dynamics of 4G, 5G, Wi-Fi, and other wide signals.
Time-Gated Measurements in ATE
Perform high-speed, synchronized measurements in automated test environments, isolating specific timing intervals.
Transient Signal Analysis
Investigate amplifier settling time, power-on behavior, or pulse-to-pulse variation in sensitive RF systems.