Wang, Yi, Su, H.T., Huang, F. and Lancaster, M.J. (2003) Design of wideband superconducting coplanar delay lines. In: High Frequency Postgraduate Student Colloquium, 2003. IEEE, pp. 86-89. ISBN 0780381238 (doi:https://doi.org/10.1109/HFPSC.2003.1242313)

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Abstract

A novel superconducting delay line is presented, it is formed from a coplanar transmission line, the transmission line has a meander structure, which is then curled into a double spiral to maximise the use of the substrate area. Full-wave simulations are conducted on a 0.5 in coplanar line of this type and also a conventional double-spiral line for comparison. Geometric factors limiting the achievable bandwidth are addressed. To extract the device delay and loss without incurring the problems of the input and output connections, AC coupled measurements are done using a 25 ns delay line as a resonator. Quality factors of the resonances from 20 MHz to 20 GHz are measured. The estimated group delay of the delay line is given.

Item Type:	Conference Proceedings
Title of Proceedings:	High Frequency Postgraduate Student Colloquium, 2003
Additional Information:	[1] This speech was first presented at the 2003 High Frequency Postgraduate Student Colloquium. held from 8-9 September 2003 in Belfast, UK. [2] Conference proceedings has othe title: 2003 High Frequency Postgraduate Student Colloquium.
Uncontrolled Keywords:	superconducting microwave circuit, delay line, CPW
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/9739

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