Situation Regarding Frequency Bands for Vehicle-to-Vehicle Communication in Japan
The 700MHz band allocated for ITS in Japan has superior radio wave characteristics compared to the 5.9GHz band allocated for vehicle-to-vehicle communication in the United States and Europe, and it has an advantage in terms of being able to communicate without interference from buildings or vehicles ahead, especially in urban areas and intersections.
However, because it is close to the frequency band used in mobile phones, filters with steep attenuation characteristics were required.
In response to such market demands, Kyocera has developed a filter that achieves high steepness based on SAW technology.
What is ITS?
It stands for Intelligent Transport Systems. A new transportation system that uses state-of-the-art information and communication technology to improve transportation efficiency and comfort. Examples include car navigation, ETC.
Features and Applications
- Smaller and thinner
- High attenuation
- Low loss characteristics (less characteristic variation with temperature change due to TC-SAW technology)
700MHz band SAW filter used for non-line side equipment
The no-track side unit in the image is the ITS no-track side unit Smart RSU made by Kyocera.
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