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Microwave far-field radiation was simulated using a coax cable inside which a ferroelectric layer with a ground plane was loaded. The ferroelectric layer was electrically biased via a planar permeable electrode allowing an RF electromagnetic field to penetrate, thereby causing reflection. By interpolating the normal-mode frequencies of the cavity resonator formed by the coax cable, it was determined the coupling between the loaded ferroelectric sample and the resonator is second order. An effective electric-bias configuration for a ferroelectric layer is thus proposed.
Microwave Theory and Techniques, IEEE Transactions on (Volume:52 , Issue: 9 )
Date of Publication: Sept. 2004