Continuing to add more members to its high performance product portfolio, instrumentation supplier Rohde & Schwarz has further extended the range of its broadband spectrum analyzer. Consequently, R&S FSU67 increases spectrum analyzer measurement frequency range to 67 GHz from the previous benchmark of 50 GHz. According to Rohde & Schwarz, it is the first to cover 20 Hz to 67 GHz in one full-span sweep with a single coaxial input without the need for external harmonic mixers. It is being aimed at the developers of military radar, communications, electronic warfare, and electronic countermeasures systems, as well as commercial microwave radios, next-generation wireless systems, and automotive collision avoidance systems.
To achieve 67 GHz, spectrum analyzers previously required external harmonic mixers that add complexity to the measurement set-up and introduce images and multiple responses that must be eliminated from the displayed results, so the signals of interest can be observed. R&S said that FSU67 eliminates the need for these components for measurement frequencies up to 67 GHz. Thus, increasing performance and repeatability, and reducing test system complexity and cost, added the manufacturer.
In addition, the improved spectrum analyzer also offers an integrated instrument-controlled RF attenuator with a range of 0 to 75 dB in 5-dB steps, thereby eliminating the external manually-operated attenuator required when harmonic mixers are used. The instrument’s reference level range (-130 dBm to +30 dBm) is also much higher than can typically be achieved with harmonic mixers.
It provides both high measurement speed and signal purity along with IEEE-488 or Ethernet LAN connectivity. The instrument is also certified compliant with LXI (LAN eXtension for Instruments) Class C, the LAN-based successor to the IEEE-488 instrumentation bus. The R&S FSU67 can make 80 measurements/s in manual mode and 70 measurements/s over the IEEE-488 bus, giving it the ability to increase production throughput. Plus, it can also control external signal generators via IEEE-488 or TTL bus to act as tracking sources for making scalar transmission, loss, and reflection measurements.
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