Extraordinary tunability of high-frequency devices using Hf0.3Zr0.7O2 ferroelectric at very low applied voltages
Abstract
This paper presents the applications of the Hf0.3Zr0.7O2 ferroelectric with a thickness of 10 nm for tuning high-frequency devices such as filters, phase shifters, and phased antenna arrays in the X band when the low bias voltages in the range −3 V–+3 V are applied. In this respect, we show that a bandpass filter shifts its central frequency located at 10 GHz with 3 GHz, a phase shifter produces a phase difference of about 60 degrees in the X band, while the antenna array formed by two patched antennas is steering its lobe with ±32° at 10 GHz. These results open the way for the tunability of high frequency devices for very low power applications, which represent one of the most challenging issues in applied physics.
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PHO could have applications in low power microwave applications.
“PHO could have applications in low power microwave applications, where recently, simulations of hafnia ferroelectrics have shown promise taking advantage of the tunability over a small applied voltage range.38”
From The other model antiferroelectric: PbHfO3 thin films from ALD precursors (2021) · cites this paper as [38]
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The other model antiferroelectric: PbHfO3 thin films from ALD precursors
Hanrahan, B., Milesi-Brault, C., Leff, A., Payne, A., Liu, S., Guennou, M., & Strnad, N. (2021) · APL Materials · doi:10.1063/5.0035730 · Cited by 19 · see citing works
- Authors
- Dragoman, M., Aldrigo, M., Modreanu, M., & Dragoman, D.
- Affiliations
- National Institute for Research and Development in Microtechnologies (RO)
- Tyndall National Institute (IE)
- University of Bucharest (RO)
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2017-03-06
- Volume
- 110
- Issue
- 10
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2594312706
- Cited by
- 42
- References
- 0
- Citations by year
- 2026: 1 · 2025: 3 · 2023: 5 · 2022: 5 · 2021: 6 · 2020: 4 · 2019: 7 · 2018: 8 · 2017: 3
- FWCI
- 2.50
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Applied Physics Letters (publishedVersion)
- Arrow@dit (Dublin Institute of Technology) (acceptedVersion)
- Cork Open Research Archive (University College Cork, Ireland) (acceptedVersion)
- Cork Open Research Archive (University College Cork, Ireland) (submittedVersion)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Ferroelectric and Negative Capacitance Devices
- Physical Sciences › Materials Science › Materials Chemistry › Ferroelectric and Piezoelectric Materials
- Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Multiferroics and related materials
- Keywords
- ferroelectric thin films, phase shifters, phased array antenna, X-band, low bias voltage, microstrip antenna
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