This paper investigates for the first time the microwave properties of arrays of magnetic nanowires embedded into a planar substrate. Our experiments show that the structure acts like an equivalent microwave ferrite substrate having several advantages. Resonances are indeed obtained in the measured transmission terms of a microstrip transmission line deposited on the equivalent substrate. Those resonances are tunable according to a DC magnetic field applied to the structure. Observed results agree very well with the ferromagnetic resonance. Those observations open the road to a new generation of planar ferrite devices.
Huynen, I., Goglio, G., Pignard, S., Radulescu, A., Piraux, L., Vanhoenacker-Janvier, D., & Vander Vorst, A. (1999). A novel nanostructured magnetic planar substrate for wideband tunable microwave applications. 29th European Microwave Conference 99. Incorporating MIOP ’99.Conference Proceedings, Vol. 3, p. 367-70. https://hdl.handle.net/2078.5/221362