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High Dynamic Spectrum Measurements for Microwave and Millimeter-Wave Bands

Anritsu MS2840A213 December 2016 – Anritsu Corporation introduced the MS2840A-051 Noise Floor Reduction and MS2840A-019 2dB Step Attenuator for Millimeter-wave options for the Signal Analyzer MS2840A series. These latest releases are ideal for accurate measurements aimed at improving the performance of wireless equipment and signal sources, as well as for improving phase noise, which is the key to upgrading the measurement resolution of microwave and mm-Wave radar and sensors.

With the demand for high-quality graphics and video in applications such as mobile and satellite communications/broadcasting, achieving faster radio communications is reliant on using wider bandwidth radio signals, with a trend towards using microwave and mmWave bands which offer much wider frequency spectrum options. Ensuring wideband and low error rate radio signals in the microwave and mmWave bands requires the use of transmitters with high dynamic range performance, bringing with it the need for high-dynamic range measuring instruments to optimise designs, in particular, those associated with noise interference.

The Noise Floor Reduction (NFR) option subtracts up to 11 dB from the measured internal noise level of the measurement system, to lower the displayed noise floor and support more accurate measurement of very low-level signals than has been possible previously. In addition, the new 2dB Step Attenuator option can set a 0 to 60 dB attenuator with 2 dB steps across the entire frequency range for 44.5 GHz model, versus a standard specification of 0 to 60 dB attenuation in 10 dB steps. This option improves the measurement dynamic range by optimizing the mixer input level even at high frequencies.

These latest options are especially useful for measuring wideband signals and microwave and mmWave signals requiring measurement of spectrum emissions, adjacent channel leakage power, and high-dynamic range signals at Tx ON and OFF.

The MS2840A Signal Analyzer is a leading solution for signal and spectrum analyzer with excellent close-in phase noise performance comparable to that of high-end analyzers. There are four models with different maximum measurement frequencies of 3.6, 6, 26.5, and 44.5 GHz. The 26.5 and 44.5 GHz models can be expanded to cover a measurement frequency range up to 325 GHz by connecting an external mixer. Due to its high performance, the MS2840A is used widely for development and manufacturing of narrowband radio equipment, radio oscillator modules, wireless backhaul, satellite communications, radar, etc.

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