Improvements in superconducting linear phase microwave delay line bandpass filters

Author

Cheung, H.C.H. ; Huang, G. ; Lancaster, M.J. ; Humphreys, R.G. ; Chew, N.G.

Author_Institution

Birmingham Univ., UK

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

2675

Lastpage

2677

Abstract

Microwave delay line filters can be designed to specified amplitude and phase characteristics using a synthesis procedure which takes into account multiple reflections and losses in the delay lines. The time domain synthesis procedure has now been extended so that frequency-dependent loss and delay line dispersion can also be allowed for. Meanwhile experimental results on linear phase microstrip and coplanar filters show significant improvements on stopband attenuation and phase linearity over previously published data on microstrip devices.<>

Keywords

band-pass filters; delay circuits; delay lines; microstrip filters; microwave filters; superconducting microwave devices; time-domain synthesis; coplanar filters; dispersion; frequency-dependent loss; microstrip filters; multiple reflections; phase linearity; stopband attenuation; superconducting linear phase microwave delay line bandpass filters; time domain synthesis; Attenuation; Band pass filters; Delay lines; Frequency synthesizers; Microstrip filters; Microwave filters; Nonlinear filters; Reflection; Superconducting filters; Superconducting microwave devices;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.403141

Filename

403141