High Tc superconducting CPW bandstop filters for radio astronomy front ends

S. Wallage, J. L. Tauritz, G. H. Tan, P. Hadley, J. E. Mooij

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Abstract

We have designed and tested a superconducting coplanar waveguide (CPW) bandstop filter consisting of 8 coupled line sections at a center frequency of 1. 53 GHz. A packaged 94. 7% bandwidth low pass Chebychev design yielded a filter with a center frequency of 1. 56 GHz less than 1. 2 dB insertion loss in the passband and better than 28 dB rejection at 20 Kelvin. With a skirt selectivity of 1. 53 (=BW1 dB/BW-28 dB) and low insertion loss this filter is an excellent candidate for suppressing contiguous spurious signals in cooled low-noise receiving front ends.

Originalspracheenglisch
Seiten (von - bis)3489-3491
Seitenumfang3
FachzeitschriftIEEE transactions on applied superconductivity
Jahrgang7
Ausgabenummer2 PART 3
PublikationsstatusVeröffentlicht - 1997
Extern publiziertJa

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bandstop filters
Radio astronomy
Waveguide filters
radio astronomy
Notch filters
Coplanar waveguides
Insertion losses
insertion loss
skirts
waveguides
filters
rejection
low noise
selectivity
bandwidth
Bandwidth

ASJC Scopus subject areas

  • !!Electrical and Electronic Engineering
  • !!Physics and Astronomy (miscellaneous)

Dies zitieren

Wallage, S., Tauritz, J. L., Tan, G. H., Hadley, P., & Mooij, J. E. (1997). High Tc superconducting CPW bandstop filters for radio astronomy front ends. IEEE transactions on applied superconductivity, 7(2 PART 3), 3489-3491.

High Tc superconducting CPW bandstop filters for radio astronomy front ends. / Wallage, S.; Tauritz, J. L.; Tan, G. H.; Hadley, P.; Mooij, J. E.

in: IEEE transactions on applied superconductivity, Jahrgang 7, Nr. 2 PART 3, 1997, S. 3489-3491.

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Wallage, S, Tauritz, JL, Tan, GH, Hadley, P & Mooij, JE 1997, 'High Tc superconducting CPW bandstop filters for radio astronomy front ends' IEEE transactions on applied superconductivity, Jg. 7, Nr. 2 PART 3, S. 3489-3491.
Wallage, S. ; Tauritz, J. L. ; Tan, G. H. ; Hadley, P. ; Mooij, J. E. / High Tc superconducting CPW bandstop filters for radio astronomy front ends. in: IEEE transactions on applied superconductivity. 1997 ; Jahrgang 7, Nr. 2 PART 3. S. 3489-3491.
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