HTS selective bandstop filter for radio astronomy applications

Author

Pal, Srikanta ; Lancaster, Michael J.

Author_Institution

Dept. Elec.tron. & Commun. Eng., Birla Inst. of Technol., Mesra, India

fYear

2011

fDate

18-22 Dec. 2011

Firstpage

1

Lastpage

4

Abstract

A six-pole High Temperature Superconducting (HTS) microstrip bandstop filter operating at S band is presented in this paper. The filter has applications in radio astronomy receivers. The zig-zag loop resonator and a meandering transmission line are developed to reduce the parasitic effect of the direct resonator-to-resonator coupling and to reduce the size of the filter structure. An elliptical behavior in the frequency characteristic is introduced by designing the resonators to resonate at asynchronous frequencies and also by varying the inter resonator path length.

Keywords

UHF filters; astronomical instruments; band-stop filters; microstrip filters; microstrip lines; radio receivers; radioastronomy; resonator filters; superconducting filters; superconducting microwave devices; HTS selective bandstop filter; S band region; asynchronous frequencies; direct resonator-to-resonator coupling analysis; elliptical behavior; frequency 2 GHz to 4 GHz; frequency characteristics; interresonator path length; meandering transmission line; parasitic effect; radio astronomy receivers; six-pole high temperature superconducting microstrip bandstop filter; zig-zag loop resonator; Band pass filters; Filtering theory; High temperature superconductors; Microstrip filters; Microwave filters; Resonator filters; Superconducting filters; cross-coupling; formatting Bandstop filter; high-temperature superconducting (HTS); spiral resonator;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Electromagnetics Conference (AEMC), 2011 IEEE

Conference_Location

Kolkata

Print_ISBN

978-1-4577-1098-8

Type

conf

DOI

10.1109/AEMC.2011.6256894

Filename

6256894