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: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
Related URLs:	Publisher
Last Modified:	14 Oct 2016 09:24
URI:	http://gala.gre.ac.uk/id/eprint/9722

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