Tunable RF Phase Shifters Based on Vanadium Dioxide Metal Insulator Transition
| Autor: | Nicolo Oliva, Andreas Schüler, Alessandro Fumarola, Anna Krammer, Matteo Cavalieri, Andrei A. Muller, Emanuele A. Casu, Adrian M. Ionescu, Wolfgang A. Vitale, Montserrat Fernandez-Bolanos |
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| Rok vydání: | 2018 |
| Předmět: |
phase shifter
Materials science RF switch true-time delay Capacitive sensing Insulator (electricity) 02 engineering and technology 7. Clean energy Capacitance Optical switch law.invention law 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Metal–insulator transition business.industry Vanadium dioxide 020206 networking & telecommunications Biasing 021001 nanoscience & nanotechnology Electronic Optical and Magnetic Materials Capacitor tunable capacitor phase transition Optoelectronics lcsh:Electrical engineering. Electronics. Nuclear engineering 0210 nano-technology business lcsh:TK1-9971 Biotechnology |
| Zdroj: | IEEE Journal of the Electron Devices Society IEEE Journal of the Electron Devices Society, Vol 6, Pp 965-971 (2018) IEEE journal of the Electron Devices Society |
| ISSN: | 2168-6734 |
| DOI: | 10.1109/jeds.2018.2837869 |
| Popis: | This paper presents the design, fabrication, and electrical characterization of a reconfigurable RF capacitive shunt switch that exploits the electro-thermally triggered vanadium dioxide (VO2) insulator to metal phase transition. The RF switch is further exploited to build wide-band RF true-time delay tunable phase shifters. By triggering the VO2 switch insulator to metal transition (IMT), the total capacitance can be reconfigured from the series of two metal-insulator-metal (MIM) capacitors to a single MIM capacitor. The effect of bias voltage on losses and phase shift is investigated, explained, and compared to the state of the art in the field. We report thermal actuation of the devices by heating the devices above VO2 IMT temperature. By cascading multiple stages a maximum of 40° per dB loss close to 7 GHz were obtained. |
| Databáze: | OpenAIRE |
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