Anritsu expands spectrum to millimetre-wave with new mixer

Millimetre-wave sensing device can detect subtle changes in human body surfaces caused by breathing and heartbeat, as well as identify the position of people and objects. These advancements open up new applications in diverse fields, such as medical care, automotive, and facial-recognition security systems. Anritsu contributes to the development of a safer and more secure society by providing solutions to evaluate millimetre-waveband signals and enhancing of millimetre-wave device quality.

Development background

The growing demand for sensing technologies using millimetre-wave radar, particularly in the 60GHz band, has driven advancements in medical applications. This technology is also employed in facial-recognition security systems. Furthermore, automotive radar technology is undergoing advancements with the development of wideband 79GHz band radar capable of detecting small targets such as pedestrians and bicycles at high resolution.

To accurately evaluate sensors designed for detecting mobile objects and automotive radars using ultra-wideband millimetre-wave signals, simple solutions are required to measure transmission signal characteristics.

Product features

Anritsu’s mid-range benchtop MS2830A, MS2840A, and MS2850A signal analysers provide high-performance capabilities and comprehensive options for wireless signal measurements across diverse applications. These models span the RF to microwave/millimetre-wave frequency bands and accommodate narrow- to wide-band signals.

For spectrum, signal, and phase-noise measurements, the measurement frequency range can be extended by installing Anritsu’s External Mixer Connection Function MX284090A. This function supports connection of a recommended external mixer from Eravant or VDI to the signal analyser’s 1st Local Output port.

Image-response-free spectrum measurement up to 7.5GHz

An image response can occur when measuring with external mixers lacking preselectors to eliminate unwanted signals, causing erroneous reception of signals at different frequencies from the intended signal. Anritsu’s signal analysers boast industry-leading* intermediate frequencies (IF) of 1.875GHz (MS2830A) and 1.8755GHz (MS2840A/MS2850A), facilitating conversion of received high-frequency signals to manageable frequencies for processing. This enables suppression of image-response effects up to 7.5GHz using Anritsu’s proprietary PS (Preselector Simulation) function, facilitating measurement of hard-to-distinguish variable signals.

*At December 2024

Simple measurement setup

The single coaxial-cable connection between the signal analyser and recommended external mixers enhances flexibility in positioning the signal analyser and allows the external mixer to be placed close to the device under test.

The MS2830A offers exceptional cost-effectiveness and is suitable for a broad range of applications, including R&D, manufacturing, and maintenance.

The MS2840A stands out with its exceptional phase noise performance and provides a comprehensive suite of options to support higher-performance measurements. These options include 2dB attenuator resolution and noise floor suppression.

The MS2850A signal analyser function supports signal analysis at bandwidths up to 1GHz.