Resonator (left) and dielectric constant measurement result example (right) developed for dielectric constant measurement developed this time
AIST: Millimeter-wave band high-speed wireless communication / material measurement technology – Next generation wireless communication and in-vehicle radar
wrap up
Realize technology to measure the dielectric constant of electronic materials over an ultra-wide band of 10 GHz to 170 GHz
Development of an electromagnetic field analysis algorithm that can precisely determine a resonator and a dielectric constant to be fed by a micro coaxial line
Contributing to the development of advanced technologies such as next-generation wireless communication and in-vehicle radar by using the millimeter wave band
Social background of development
Electromagnetic waves in the millimeter wave band with a frequency of 30 GHz to 300 GHz:
It has high rectilinearity, it is suitable for large capacity high speed information transmission of relatively short distance.
Next Generation Wireless LAN Standard (WiGig)
5th generation mobile communication system (5G),
Millimeter wave band automotive radar and so on, the use is expanding rapidly in a wide range of fields.
For example,
WiGig using 60 GHz band
It realizes high speed communication more than 10 times the existing wireless LAN (2.4 / 5.8 GHz band).
Security system at airport and railway station
In the broadcast material transmission system of 4K / 8K uncompressed video, etc., it is under consideration for use in the frequency band of 100 GHz or more.
https://www.aist.go.jp/aist_j/press_release/pr2019/pr20190117/pr20190117.html