Emerging ferroelectric ceramic-polymer composites for sub-THz tunable devices

The paper presents the recent research in ferroelectric ceramic-polymer composites for sub-THz tunable devices. Developed composites are very promising group of materials due to the possibility of fabrication of materials with desired electrical and mechanical properties. Appropriate selection of components for ceramic slurry enables to obtain composites with low losses and high tunability. Using tape-casting technology and water-dispersible polymers environmentally friendly thin and flexible ferroelectric tapes can be realized. Particular emphasis is made on measurement methods of electrical properties in sub-THz range. In addition, various composites, process of fabrication and characterization of developed ferroelectric ceramic-polymer composites are discussed.