Zobrazeno 1 - 10
of 45
pro vyhledávání: '"D Jedamzik"'
Autor:
P. D. Hunneyball, Peter P. Edwards, D. Jedamzik, M. J. Bennett, Ru-Shi Liu, M. R. Harrison, R. J. Horley
We have prepared new high Tc superconducting thin films of (Tl,Bi)-Sr-Ca-Cu-O by combining low temperature (500 °C) rf sputtering of Bi-Sr-Ca-Cu-O precursor films and thallium diffusion. A typical film has T c(onset) =80 K, Tc(midpoint) =79 K, and T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ce751cc197da10083f8a06004deed7f
https://ora.ox.ac.uk/objects/uuid:89022f0a-d8ce-4f83-9019-a3a436aebbb1
https://ora.ox.ac.uk/objects/uuid:89022f0a-d8ce-4f83-9019-a3a436aebbb1
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 48:1240-1246
The low-loss and high-selective high-temperature superconducting (HTS) bandpass filters can enhance performance of mobile communications systems. In this paper, we summarize a recent progress of novel HTS preselect bandpass filters that have been dev
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 48:1336-1343
This paper presents a recent investigation of a high-temperature superconducting (HTS) duplexer for cellular base-station applications. The duplexer consists of two HTS hybrids and two HTS bandstop filters. The principle and design of the duplexer ar
Autor:
Michael J. Lancaster, G. Auger, M. Reppel, B. Marcilhac, D.C. Voyce, R.B. Greed, H.J. Chaloupka, Jia-Sheng Hong, D. Jedamzik, R. Mistry, J.-C. Mage, W. Rebernak, H.U. Hafner
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 9:4002-4005
Future third-generation mobile communication systems will require improved sensitivity and selectivity to support the growth in multi-media services, increased coverage, longer talk time and larger numbers of subscribers. The paper describes a transc
Autor:
H.J. Chaloupka, Jia-Sheng Hong, R.B. Greed, Michael J. Lancaster, D.C. Voyce, D. Jedamzik, J.-C. Mage, J.A. Holland
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 9:3893-3896
This paper presents results of thin film high temperature superconducting (HTS) passive microwave components recently developed for advanced communication systems, which include miniature resonators, narrow-band bandpass and bandstop filters, coupler
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 9:4022-4025
The application of High Temperature Superconductors (HTS) has led to the development of new sub-systems for cellular basestations used in network infrastructures. They offer performance advantages in terms of sensitivity and selectivity as well as a
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 47:1656-1663
This paper presents recent developments of an eight-pole planar high-temperature superconducting (HTS) bandpass filter with a quasi-elliptic function response. A novel planar filter configuration that allows a pair of transmission zeros to be placed
Autor:
D. Jedamzik, K. Herrmann, J.F. Walker, T. Harnisch, David F. Moore, W.E. Booij, A.J. Pauza, Mark G. Blamire, N. Cade, F. Baudenbacher
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 7:2494-2497
We report the fabrication and testing of compact interferometers operating at temperatures up to 60-80 K. Focused electron-beam irradiation Josephson junctions are made in YBaCuO, and a focused ion beam is used for precise etching of the tracks of su
Autor:
Neil McN. Alford, Paul Smith, Tim W. Button, S.J. Zammattio, N. Peters, R.B. Greed, B.F. Nicholson, J. Grier, P.R. Whitehead, K. Lamacraft, S.J. Hedges, D. Jedamzik, W.A. Phillips
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 5:2283-2286
A cryogenic downconverter has been designed and built to demonstrate the integration of semiconducting and superconducting components in a complete subsystem cooled by a closed cycle Stirling cryocooler. The frequency selective receiver converts 11 G
Autor:
K. Lamacraft, S.J. Zammattio, W.A. Phillips, S.J. Hedges, T.P. Trowles, R.E. Stephan, B.F. Nicholson, M. J. Adams, D. Jedamzik
Publikováno v:
IEEE Transactions on Applied Superconductivity. 3:1733-1736
GdBa/sub 2/Cu/sub 3/O/sub 7/, which has very similar properties to YBa/sub 2/Cu/sub 3/O/sub 7/ but appears to be more tolerant of processing conditions, is studied. Thin films have been prepared by inverted cylindrical magnetron sputtering on MgO sin