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Creators/Authors contains: "Saha, Kapil"

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  1. ; ; ; ; ; ; (, IEEE)
    In this work, an Aluminum Scandium Nitride (AlScN) on Diamond Sezawa mode surface acoustic wave (SAW) platform for RF filtering at Ku-band (12-18 GHz) is demonstrated. Thanks to the high acoustic velocity and low-loss diamond substrate, the prototype resonator at 12.9 GHz achieves a high phase velocity (𝑣𝑣p) of 8671 m/s, a maximum Bode-Q of 408, and coupling coefficient (𝑘𝑘eff 2 )of 2.1%, outperforming high-velocity substrates such as SiC and sapphire by more than 20% in velocity. Resonators spanning 8 to 18 GHz are presented. The platform’s high power handling above 12.5 dBm is also experimentally validated. 
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    Free, publicly-accessible full text available June 29, 2026