High Performance Varactor

Andrea Testino

doi:10.4028/www.scientific.net/AST.67.16

Paper Titles

Preface

Committees

Miniature Ceramic Antennas for Wireless Applications
p.1

Electric Field Breakdown of Polymer Based Nano-Composite at Room and Cryogenic Temperatures
p.10

High Performance Varactor
p.16

Influence of the Annealing on the Thermal Stability of Ge-Sb-Te Materials for Recording Devices
p.22

Preparation and Characterization of Dielectric Behavior of A_2/3Cu₃Ti₄O₁₂ (A = Nd, Sm, Gd, Dy) Ceramics
p.28

Effect of DC Poling Field on Domain Behavior in Lead-Free Piezoelectric Ceramics
p.34

Fractal Geometry and Properties of Doped BaTiO₃ Ceramics
p.42

HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 67High Performance Varactor

High Performance Varactor

Abstract:

A multi-components multi-layer co-fired ceramic varactor with superior performance is here presented. The concept combines a tunable capacitor with optimized properties in a restricted temperature range with PTCR layers to control the overall device temperature. Different prototypes are produced as demonstrator units; one of them is described in detail. The device may be tuned by a primary bias voltage applied to the capacitor and by a secondary voltage applied to the PTCR to set the working temperature. By proper choice of materials, bias voltage and working temperature, the varactor is optimized to the requested figure of merit for a specific application. The prototype here described has shown a tunability >83% @ 2.75 V//m (Patent Pending)

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Periodical:

Advances in Science and Technology (Volume 67)

Pages:

16-21

DOI:

https://doi.org/10.4028/www.scientific.net/AST.67.16

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Online since:

October 2010

Authors:

Andrea Testino

Keywords:

BST, PTC, Thermally Stabilized, Tunable Capacitor, Varactor

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