Search for dissertations about: "ferroelectric varactors"
Showing result 1 - 5 of 12 swedish dissertations containing the words ferroelectric varactors.
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1. Ferroelectric Na₀₅̣ K₀₅̣ NbO₃ varactors for microwave applications
Abstract : .... READ MORE
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2. Ferroelectric Thin Films on Si-substrate for Tunable Microwave Applications
Abstract : The thesis presents the development of microwave tunable devices based onferroelectric thin films. The main tasks in this work are the fabrication, optimization, andintegration of ferroelectric thin film into Si-MMIC. READ MORE
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3. Piezoelectric and ferroelectric device technologies for microwave oscillators
Abstract : The purpose of this thesis is to investigate piezoelectric and ferroelectric thin film device technologies for application in microwave oscillators.Thin film varactors based on ferroelectric materials are considered. READ MORE
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4. High Temperature Superconducting and Tunable Ferroelectric Microwave Devices
Abstract : This thesis addresses some applications of High Temperature Superconductors (HTS) and ferroelectric materials in tunable microwave devices and circuits. The work is divided into three main areas: i) modeling of multilayered structures including ferroelectric layers, ii) realization and characterization of tunable coplanar waveguides (CPW), capacitors and resonators based on ferroelectrics, and iii) an investigation of microstrip HTS K-band filters. READ MORE
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5. Integration of Ferroelectric HfO2 onto a III-V Nanowire Platform
Abstract : The discovery of ferroelectricity in CMOS-compatible oxides, such as doped hafnium oxide, has opened new possibilities for electronics by reviving the use of ferroelectric implementations on modern technology platforms. This thesis presents the ground-up integration of ferroelectric HfO2 on a thermally sensitive III-V nanowire platform leading to the successful implementation of ferroelectric transistors (FeFETs), tunnel junctions (FTJs), and varactors for mm-wave applications. READ MORE