As a non-contact sensing technology, millimeter wave radar sensor is widely applied in advanced driving assistance system, and autonomous driving. With the development of technology, the application of millimeter wave radar is constantly expanding, no longer being limited to vehicle but gradually extending to smart space, smart home, smart security, health monitoring etc.

Classified by working frequency, there are three types of millimeter wave radar sensor for civilian market—24 GHz millimeter wave band, 60 GHz millimeter wave band, and 77 GHz millimeter wave band. Among them, 76-79 GHz millimeter wave band have limitation in non-auto field, while 24/60 GHz millimeter wave band can be applied in home, office, hotel, hospital and other scenarios. Therefore, what are the differences between them? Let’s take a look.

Differences between 24/60 GHz millimeter wave band

In terms of millimeter wave radar sensor, the higher working band, the shorter wavelength, the wider band width, the higher resolution.

24 GHz millimeter wave radar is the earliest one to enter civilian market. And the appearance of 60 GHz millimeter wave radar has addressed issues such as limited band width and insufficient precision of 24 GHz millimeter wave radar to certain degree. It’s foreseeable that market competition will gradually shift to 60 GHz millimeter wave radar in the future. However, due to the relatively mature application, and the controllable cost of 24 GHz, which offers the best value for money, it still owns considerable room in civilian market.

The concrete differences are as follows——

In practical applications of smart scenarios, 24 GHz millimeter wave sensor has achieved precise static human presence detection, and human track tracing, while 60 GHz millimeter wave sensor has been applied in advanced functional scenarios such as human posture detection, vital signs monitoring, and partitioned track tracing.

According to actual demands, users can chose intelligent sensing solutions that match scenarios, ensuring accurate function realization and precisely cost control.

Merrytek promotes the upgrading of millimeter wave radar application

Merrytek is the pioneering enterprise that unlocks the application of millimeter wave radar sensing in China, being awarded to National-level “Little Giant” enterprise due to its strong self-development capacity. The company focuses on cutting-edge innovation in millimeter wave radar sensing field, continuously launches industrial benchmarking products to facilitate the development and progress of the industry——

• In 2015, Merrytek introduced the first human minor motion detection sensor which is applied in panel lights for office lighting.
• In 2018, Merrytek creatively launched “5.8 GHz lifebeing presence sensor” which uses Merrytek self-developed “low impedance double-fed large beam microwave module “. The product is widely applied in smart office, smart home, smart hotel and other related intelligent scenarios.
• In 2021, Merrytek released the second-generation “24 GHz millimeter wave lifebeing presence sensor”. The product uses Merrytek self-designed RF antenna—“24 G horizontal half-wave folding antenna” characterized by large beam angle, and low signals reception loss. The product achieved overlapping motion/minor motion/breath detection are, becoming a highlight in the industry.
• In 2023, Merrytek launched “medium-space presence sensor”, and “small-space presence sensor” and “AI posture sensor” that based on 60 GHz millimeter wave technology for various industry application scenarios, greatly improving and expanding sensor applications in smart space, and providing more comprehensive intelligent control solutions to the industry.

Based on 24 GHz millimeter wave radar sensing technology, Merrytek will continuously optimize experience of existing products and upgrade their performance. Based on 60 GHz millimeter wave radar sensing technology, Merrytek will stick to developing more competitive products and realize innovative functions.

With excellent technical research and development capacity, Merrytek repeatedly broke through industry pain points and issues, developed millimeter wave radar sensor for sleeping sensing, single station sensing and other specific scenarios, and highly recognized by the market. In future, the company will continue to explore the innovative application of millimeter wave radar sensing technology further, promote the industry to maintain a sustainable development trend, and build a convenient and wonderful intelligent life experience for everyone.