Ferroelectrics for Tunable High-Power Applications

Holger Maune,Daniel Kienemund,Alex Wiens,Sebastian Preis,Christian Schuster, D. Walk,Olof Bengtsson,Rolf Jakoby

2018 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)（2018）

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摘要

This paper presents recent development of ferroelectric varactors for tuning applications. While Barium-StrontiumTitanate (BST) based thick-film components have formerly been realized in planar interdigital (IDC) topology, low-sintering BST composites offer the possibility of metal-insulator-metal (MIM) structures. The possibilities and limits of this technology are discussed in respect to high-power applications, especially the power handling capability and linearity are considered. Thick-film components with very high power rating of 1kW show acoustic effects, which have to be carefully considered in the design.

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关键词

high power rating,ferroelectrics,high-power applications,ferroelectric varactors,tuning applications,thick-film components,planar interdigital topology,low-sintering BST composites,metal-insulator-metal structures,power handling capability,power handling linearity,power handling linearity,power 1.0 kW

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