Configurable mmWave Radar Module

Space holds vast promise. Orbiting satellites have already enabled global communications and allowed us to learn about our planet's climate. This paper will explain radar, how it works, and why it is suited to space applications. It will also discuss considerations for space companies when deploying any sensing technology. There is no one-size-fits-all when it comes to sensing. Our team works with space missions to assess if mmWave radar is right, and where it is, identify optimal configurations, software, and security to deliver against the performance and SWaP-C goals.

Camera systems are in widespread use as sensors that provide information about the surrounding environment. But this can struggle with image interpretation in complex scenarios. In contrast, mmWave radar technology offers a more straightforward view of the geometry and motion of objects, making it valuable for applications like autonomous vehicles, where radar aids in mapping surroundings and detecting obstacles. Radar’s ability to provide direct 3D location data and motion detection through Doppler effects is advantageous, though traditionally expensive and bulky. Advances in SiGe device integration are producing more compact and cost-effective radar solutions. Plextek aims to develop mm-wave radar prototypes that balance cost, size, weight, power, and real-time data processing for diverse applications, including autonomous vehicles, human-computer interfaces, transport systems, and building security.

This paper presents a range of novel low-cost millimeter-wave radio-frequency sensors that have been developed using the latest advances in commercially available electronic chip-sets. The recent emergence of low-cost, single chip silicon germanium transceiver modules combined with license exempt usage bands is creating a new area in which sensors can be developed. Three example systems using this technology are discussed, including: gas spectroscopy at stand off distances, non-invasive dielectric material characterization and high performance micro radar.

This paper describes the design and characterization of a frequency-scanning meanderline antenna for operation at 60 GHz. The design incorporates SIW techniques and slot radiating elements. The amplitude profile across the antenna aperture has been weighted to reduce sidelobe levels, which makes the design attractive for radar applications. Measured performance agrees with simulations, and the achieved beam profile and sidelobe levels are better than previously documented frequency-scanning designs at V and W bands.

Recent high profile reports of lunar lander failures due to loss of altitude and doppler sensing data show the necessity for a suite of sensors, making radar now essential for mission assurance.

Detecting micro-debris in real-time is key to safer space operations. Next-gen mmWave radar technology enables high-resolution tracking of even the smallest fragments in LEO, reducing collision risks and enhancing space situational awareness. Discover how this innovation supports a more sustainable orbital future.

Plextek and Texas Instruments: Optimizing mmWave radar capabilities to solve key design challenges

Discover the challenges and solutions for accurately modelling RF propagation in urban settings. Explore the innovative neural network model revolutionising urban RF systems.

Discover our advanced mmWave radar platform for safer and more efficient space missions.

We explore the role of custom RF system design in communication and safety within the mining industry, ensuring robust data handling and operational efficiency in challenging conditions.

We continue to advance radar technology for the CLEAR mission, reinforcing the partnership with ClearSpace and the UK Space Agency for sustainable space safety and debris removal.

Fusing mmWave technology and healthcare innovation to devise a ground-breaking, non-invasive pain management solution, demonstrating our commitment to advancing healthtech.

Pioneering a ground-breaking collaboration in advanced in-orbit servicing, setting new benchmarks for space debris removal and satellite maintenance.

Looking deeper into the cutting edge of imaging radar data processing, where innovative techniques and practical applications combine to drive forward solutions.

At the forefront of space technology innovation, we address complex engineering challenges in the sector, delivering low size, weight, and power solutions tailored for the harsh environment of space.

A practical guide for programmers on processing imaging radar data, featuring example Python code and a detailed exploration of a millimetre-wave radar's data processing pipeline.