Multiferroic heterostructure fringe field tuning of meander line microstrip ferrite phase shifter

Geiler, A. L.; Gillette, S. M.; Chen, Y.; Wang, J.; Chen, Z.; Yoon, S. D.; He, P.; Gao, J.; Vittoria, C.; Harris, V. G.
February 2010
Applied Physics Letters;2/1/2010, Vol. 96 Issue 5, p053508
Academic Journal
Magnetic fringe fields emanating from a multiferroic heterostructure composite of Terfenol-D and lead magnesium niobate-lead titanate were utilized to actively tune a meander line microstrip ferrite phase shifter operating above ferrimagnetic resonance at C-band. Differential phase shifts of 65° were measured when tuned with an applied voltage to the multiferroic heterostructure. This demonstration of magnetoelectric field generation provides an alternative approach to tuning broadband planar microwave magnetic devices where neither strain nor direct electromagnetic coupling is experienced between device and multiferroic transducer.


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