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High-Temperature Superconducting Coplanar Left-Handed Transmission Lines and Resonators

High-Temperature Superconducting Coplanar Left-Handed Transmission Lines and Resonators

Wang, Yi and Lancaster, Michael J. (2006) High-Temperature Superconducting Coplanar Left-Handed Transmission Lines and Resonators. Applied Superconductivity, IEEE Transactions on, 16 (3):16879. pp. 1893-1897. ISSN 1051-8223 (doi:https://doi.org/10.1109/TASC.2006.873992)

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Abstract

This paper implements wideband, low-loss, and via-free left-handed transmission lines (LH-TLs) using superconductor thin films. Introducing superconductors greatly reduces the loss inherited in the constituent series capacitors and shunt inductors of such planar LH-TLs. The measured results agree very well with design expectations. The bandwidth of left-handed characteristics is 4.9-10.9 GHz, with a minimum insertion loss of 0.03 dB at 30 K. Open-ended LH-TL resonators are also characterized at the different harmonics; of special interest are those with zero or negative phase constants, which are not possible when using any conventional transmission lines. Temperature-dependence measurements of the LH-TLs reveal the effect of the superconductor kinetic inductance.

Item Type: Article
Additional Information: [1] Journal has other title: IEEE Transactions on Applied Superconductivity. [2] Date of current version: 6 September 2006.
Uncontrolled Keywords: coplanar waveguides (CPWs), left-handed transmission lines (LH-TL), resonators, superconducting microwave devices,
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Pre-2014 Departments: School of Engineering > Mobile & Wireless Communications Research Laboratory
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Last Modified: 14 Oct 2016 09:24
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
Selected for REF2021: None
URI: http://gala.gre.ac.uk/id/eprint/9722

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