High Tc superconducting CPW bandstop filters for radio astronomy front ends

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

doi:10.1109/77.622145

High Tc superconducting CPW bandstop filters for radio astronomy front ends

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	3489-3491
Number of pages	3
Journal	IEEE Transactions on Applied Superconductivity
Volume	7
Issue number	2
DOIs	https://doi.org/10.1109/77.622145
Publication status	Published - 1997
Externally published	Yes

ASJC Scopus subject areas

Electrical and Electronic Engineering
Physics and Astronomy (miscellaneous)

Access to Document

10.1109/77.622145

Cite this

@article{29f02e4ebdb44a51820d167e5c956f19,

title = "High Tc superconducting CPW bandstop filters for radio astronomy front ends",

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.",

author = "S. Wallage and Tauritz, {J. L.} and Tan, {G. H.} and P. Hadley and Mooij, {J. E.}",

year = "1997",

doi = "10.1109/77.622145",

language = "English",

volume = "7",

pages = "3489--3491",

journal = "IEEE Transactions on Applied Superconductivity",

issn = "1051-8223",

publisher = "Institute of Electrical and Electronics Engineers",

number = "2 ",

}

TY - JOUR

T1 - High Tc superconducting CPW bandstop filters for radio astronomy front ends

AU - Wallage, S.

AU - Tauritz, J. L.

AU - Tan, G. H.

AU - Hadley, P.

AU - Mooij, J. E.

PY - 1997

Y1 - 1997

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0031163496&partnerID=8YFLogxK

U2 - 10.1109/77.622145

DO - 10.1109/77.622145

M3 - Article

AN - SCOPUS:0031163496

SN - 1051-8223

VL - 7

SP - 3489

EP - 3491

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 2

ER -

High Tc superconducting CPW bandstop filters for radio astronomy front ends

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this