Tunable 3D dielectric resonator using a thermoconductive VO2 material

A temperature-based tunable dielectric resonator is presented showing a tunability of 20 MHz around 11.8 GHz when heated with a drop of the quality factor from 4000 to 286. The puck-shaped alumina resonator contains a thin sapphire sheet coated with VO2. An overview of the thermoconductive VO2 mater...

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Bibliographic Details
Published in:Electronics letters 2014-05, Vol.50 (11), p.821-823
Main Authors: Gonzalez, J.M, Delhote, N, Baillargeat, D, Champeaux, C, Roy, L
Format: Article
Language:English
Subjects:
Al2O3
alumina
Applied sciences
Circuit properties
dielectric resonators
Electric, optical and optoelectronic circuits
Electromagnetism
Electronics
Engineering Sciences
Exact sciences and technology
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Microwave technology
puck‐shaped alumina resonator
quality factor
sapphire
temperature‐based tunable dielectric resonator
thermoconductive VO2 material
thin sapphire sheet
tunable 3D dielectric resonator
tuning
vanadium compounds
VO2
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Description
Summary:A temperature-based tunable dielectric resonator is presented showing a tunability of 20 MHz around 11.8 GHz when heated with a drop of the quality factor from 4000 to 286. The puck-shaped alumina resonator contains a thin sapphire sheet coated with VO2. An overview of the thermoconductive VO2 material used is presented. The design and simulations of the resonator are presented along with the fabricated structure and measurements.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2013.4090