5. Conclusion
Piezoelectric thin-film technologies enable the design and industrial manufacture of RF filters (operating at high frequencies). To improve data transmission, we need to increase the number of radio frequency (RF) bands, increase bandwidth, and reduce latency. 5G/6G RF filter technologies, such as SAW and BAW, are based on piezoelectric thin films of materials such as LiNb(Ta)O 3 and Al(Sc)N. These present technical challenges from a performance point of view, especially with regard to the quality factor, which is deemed insufficient, and the limitations of current manufacturing techniques. 5G/6G communications promise significant benefits for modern society beyond cellular networks, facilitating the Internet of Things, smart transport and city systems, autonomous cars, complex manufacturing and more.
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Conclusion
Glossary
Bibliography
Standards and norms
- Standard on Piezoelectricity - ANSI/IEEE 176 - 1987
- Standard Definitions and Methods of Measurement for Piezoelectric Vibrators - ANSI/IEEE 177 - 1966
Patents
CADY (W.G.). – Method of maintaining electric currents of constant frequency, US1472583A (1921).
KADOTA (M.). – Surface acoustic wave device, U.S. patent 8304959 B2 (2012).
BARTASYTE (A.), KUPRENAITE (S.) and ASTIE (V.). – Layered solid element comprising a ferroelectric layer and method for manufacturing the same, EP20 203952 (2020).
Directory
Documentation – Training – Seminars (non-exhaustive list)
DOMOCO 6G White Paper. NTT Docomo – White paper on the evolution of 5G technology and the development of 6G https://www.docomo.ne.jp/english/corporate/technology/whitepaper_6g/
MATTHEWS (P.). Microstrip filters deliver small...
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