Get the latest Science News and Discoveries

USTC designs new coupled shear saw resonator at high frequency - EurekAlert

<p>Surface Acoustic Wave (SAW) resonators have been widely used in wireless communication below 2 GHz. However, as wireless communication evolves into 5G and 6G, with the new frequency bands above 3 GHz and bandwidth exceeding 500 MHz, conventional SAW technology face serious bottlenecks in terms of high frequency (&gt;3GHz), high quality factor (Q value), and high electromechanical coupling coefficient (k²).</p> The main limitation of traditional SAW technology is that it has been using single piezoelectric coefficient to achieve the conversion between electrical and mechanical energy. To solve the issue, a research team led by Prof. ZUO Chengjie from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) developed a Coupled Shear SAW (CS-SAW) resonator that utilizes two coupling coefficients of different directions (e₁₆ and e₃₄). Their work was published in <em>IEEE Electron Device Letters</em>.

None

Get the Android app