Abstract
ABSTRACTThis article experimentally studies the application of vanadium dioxide (VO2) thin film for tunable inductor design. VO2's temperature‐dependent conductivity is used for implementing a tunable inductor using VO2 as the control material. Two different configurations of inductors are designed. One design uses a short VO2 bar as a circuit switch and the other uses VO2 to replace the full spiral coil inductor. The frequency range in the experiments is 0.3–2 GHz. Experimental results show a 32% tuning range (1–0.68 nH) through applied temperature variation (25–100°C) in the devices. These results are matched by a working circuit π model. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1057–1061, 2017
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