Explore a presentation on using metamaterials to replace natural magnetic gyrotropes in this 37-minute conference talk from the 2016 Hackaday SuperConference. Delve into Toshiro Kodera's research, covering topics such as the need for dielectric and magnetic materials, ferrite material applications and drawbacks, metamaterial concepts, and the rotation of magnetic dipole moments in traveling-wave resonators. Examine practical applications including circulators, isolators, and beam-steerable antennas. Learn about tunable metamaterial designs, non-reciprocity features, and measured transmission/reception separation. Gain insights into the advantages and limitations of metamaterials compared to conventional materials in electromagnetic applications.
Overview
Syllabus
Intro
WHO IS TOSHIRO ?
OUTLINE
WHY DO WE NEED MATERIAL? (1/2) Dielectric material
WHY DO WE NEED MATERIAL? (2/2) Magnetic material
FERRITE MATERIAL APPLICATION Circulator, isolator...
FERRITE MATERIAL DRAWBACK Difficulty of integration
WHAT IS METAMATERIAL?
ROTATION OF MAGNETIC DIPOLE MOMENT IN A TRAVELING-WAVE RESONATOR
MNM APPLICATIONS
CIRCULATOR APPLICATION
CIRCULATOR MEASUREMENT
POYNTING-FLOW EVALUATION
ONE MISSING FUNCTION TUNABILITY
TUNABLE MNM DESIGN
BEAM-STEERABLE ANTENNA BY TUNABLE MNM
RADIATION PATTERN
NON-CONVENTIONAL FEATURE BY NON-RECIPROCITY
MEASURED TX/RX SEPARATION
MEASURED FIGURE-OF-8 RING RESPONSE
CONCLUSION PROS AND CONS OVER CONVENTIONAL MATERIALS
Taught by
HACKADAY
