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USB-capable power sensor can measure up to 40GHz

Posted: 11 Feb 2011 ?? ?Print Version ?Bookmark and Share

Keywords:power sensor? USB-capable sensor? power sensor 40GHz?

Rohde & Schwarz has expanded its USB-capable power sensor portfolio with the R&S NRP Z85 and R&S NRP Z86.

According to the company press release, the R&S NRP Z85 and R&S NRP Z86 are the world's "first" wideband sensors to measure power from 50MHz to 40GHz without requiring a base unit. Instead of a base unit, the sensors are connected to a PC via a USB interface. This solution displays envelope power over a dynamic range of 47dBm to +20dBm. High-resolution pulse analysis is also another feature of the new power sensor. Additionally, the R&S NRP Z85 and R&S NRP Z86 provide high-precision continuous-average measurements over the 60dBm to +20dBm range. The sensors suit a variety of applications in the development and maintenance of microwave and radar systems as well as in the design and production of microwave components.

The wideband power sensors can be operated from a PC via the R&S NRP Z4 USB adapter, or in combination with an R&S NRP/NRP2 power meter. They can also be connected to any signal generator or virtually any signal, spectrum and network analyzer from Rohde & Schwarz. Users can read the power measured from the DUT directly at the generator or analyzer.

The R&S NRP Z85 and Z86 have a video bandwidth of up to 30MHz and a sampling rate of 80MHz. The rise time of less than 13ns enables easy measurement of the most frequently analyzed pulse shapes. The power sensors can measure both peak power and average power over a defined time interval as well as perform statistical signal analysis (CCDF, PDF).

With a measurement uncertainty of 0.18dB at 40GHz, the sensors offer accuracy for continuous-average measurements. The power sensors' automatic pulse analysis function provides peak power and average power measurements as well as detailed information on other important power and time characteristics of pulsed signals. These include, for example, pulse top level, pulse duration, pulse period, pulse duty cycle and pulse rise and fall times. Using equivalent time sampling, the R&S NRP Z85 and Z86 can display pulsed signals with a high time resolution. This is done by sampling a series of consecutive waveforms of a pulsed signal. The measurements are time-shifted relative to one another, yielding a compacted sequence of samples, which over time are combined into a complete waveform.

The new R&S NRP-Z85 and R&S NRP-Z86 wideband power sensors are now available from Rohde & Schwarz. The R&S NRP Z85 connects to the DUT via a 2.92mm connector, the R&S NRP Z86 via a 2.4mm connector.

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