© Published under licence by IOP Publishing Ltd. A theoretical model of a microwave active ring filter based on a ferrite-ferroelectric layered structure serving as a waveguide for spin-electromagnetic waves is developed. An experimental prototype of the device is fabricated and characterized. The device is implemented as an active-ring resonator with a microwave amplifier and a ferrite-ferroelectric delay line. The resonance properties of this system are studied theoretically and experimentally. The results show dual control of central frequency of the filter with magnetic and electric fields. An effective Q-factor of 50 000 and tuning by 5 MHz with an electric field are achieved at 8 GHz.
CITATION STYLE
Courtillot, V. (2007). True Polar Wander. In Encyclopedia of Geomagnetism and Paleomagnetism (pp. 956–969). Springer Netherlands. https://doi.org/10.1007/978-1-4020-4423-6_308
Mendeley helps you to discover research relevant for your work.