A BROADBAND, NONRECIPROCAL NETWORK ELEMENT

摘要

A magneto-electric (ME) gyrator, which is a discrete, passive network element, comprises a laminated composite of piezoelectric and magnetostrictive layers. The ME gyrator approximately meets the following criteria: Vy = -a/,, where V is voltage, /is current, and a is a conversion (or gyration) coefficient between voltage and current and non-reciprocity is manifested as a 180° phase shift between open and short circuit (/,F) conditions, and = * 1 (Ib) where c0 is the speed of light in vacuum, ee^is the effective relative dielectric constant, and µe^is the effectßive relative permeability.