Abstract
This work deals with the design, realization and characterization of a miniature and frequency agile antenna based on a ferroelectric Ba0,80Sr0,20TiO3 thin film. The notch antenna is loaded with a variable metal/insulator/metal (MIM) capacitor and is achieved by a monolithic method. The MIM capacitance is 3.7pF, which results in a resonant frequency of 670MHz compared to 2.25GHz for the unloaded simulated antenna; the resulting miniaturization rate is 70%. The characterization of the antenna prototype shows a frequency tunable rate of 14.5% under an electric field of 375kV/cm, with a tunability performance η= 0.04.
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