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Development of a one-chip tunable SAW filter for wireless communication utilizing vacant digital television broadcasting frequencies (TV white spaces)

2014/02/24

Tohoku University in cooperation with Murata Manufacturing Co. Ltd, National Institute of Information and Communication Technology (NICT) and Chiba University has developed the world’s first one-chip tunable surface acoustic wave (SAW) filter capable of selecting a vacant digital television broadcasting frequency (TV white space) for wireless communication. This filter was installed in a cognitive wireless communication system supporting TV white space, which was developed by NICT, and successfully demonstrated. One of the greatest challenges with TV white space utilization was the miniaturization of a filter needed for frequency selection. The development of this one-chip tunable SAW filter opens the path to TV white space utilization in cellphones and smartphones.
 
 
Contact:

Professor Shuji Tanaka
Department of Bioengineering and Robotics
Graduate School of Engineering, Tohoku University
Tel: +81-22-795-6934
E-mail: tanaka@mems.mech.tohoku.ac.jp
http://www.mems.mech.tohoku.ac.jp/index_e.html

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