What Is Millimeter Wave Radar Evaluation Kit?
Millimeter wave radar evaluation kit is a device that uses millimeter wave band radio waves to measure the positional relationship with an evaluation object. It can measure not only distance to an object but also angle and relative velocity with high accuracy.
The use of the millimeter wave band offers the following advantages:
- Resistant to Environmental Changes
Because it uses radio waves, it is resistant to environmental changes. Measurements can be made without being affected by weather or illumination. - Excellent Resolution
Resolution improves in higher frequency ranges, such as 77 GHz. It can distinguish and recognize multiple objects even if they are located in close proximity to each other.
Applications of the Millimeter Wave Radar Evaluation Kit
An example of where the millimeter wave radar evaluation kit is used is in the automatic detection of automobiles.
Compared to trains and airplanes, automobiles are vehicles that are more prone to collisions with other objects. Object detection systems are being developed to assist in avoiding collisions.
While low-frequency radar has been used in the past, the use of high-resolution millimeter-wave radar is rapidly advancing. Legislation on the use of millimeter-wave radar is being developed around the world.
In recent years, the application of millimeter-wave radar is being considered not only for automobiles but also for drones.
Principle of Millimeter Wave Radar Evaluation Kits
Detection of objects is made possible by sensing radio waves in the millimeter wave band.
Radio waves have the characteristics of waves and travel through the air at a specific vibration. The specific frequency of oscillation is called frequency, and they are classified according to their frequency. Millimeter wave bands are waves with frequencies between 30 GHz and 300 Hz.
The higher the frequency of the wave, the stronger the straightness. The higher the frequency, the stronger the straightness, which means that information is less impaired, and thus a large amount of information can be transmitted faster. In addition, the short wavelength of the millimeter wave band enables highly accurate sensing even in smaller sizes.
The millimeter wave band has been used in automobiles and other vehicles, but in recent years it has also been introduced in the field of communications, such as smartphones, where it is being discussed as 5G and can transmit information at higher speeds than 4G.
However, there are challenges to the introduction of millimeter wave bands in the telecommunications field. One of them is the maintenance of base stations. The shorter wavelength of the millimeter wave band shortens the distance that radio waves can reach. The solution to this problem is to increase the number of base stations, but this may take time due to cost issues.