A High-Temperature Superconducting Notch Filter to Suppress Cellular-Band Interference in Radiotelescopes

Author

Corona-Chavez, A. ; Nogues-Hoyos, M. ; Esteras-Otal, L. ; Murthy, D.V.B. ; Sanchez-Rinza, B.

Author_Institution

Nat. Inst. of Astrophys., Opt. & Electron., Puebla, Mexico

Volume

21

Issue

2

fYear

2011

fDate

4/1/2011 12:00:00 AM

Firstpage

68

Lastpage

70

Abstract

An experimental high-temperature superconducting four-pole filter for mitigation of the IMT 2000 cellular band in radiotelescopes is presented. The filter uses a novel capacitive cross-coupling to achieve a quasi-elliptic response. Composite right/left-handed (CRLH) zeroth-order resonators are used to avoid harmonic generation throughout the UHF and L-bands.

Keywords

notch filters; radioastronomy; radiofrequency interference; radiotelescopes; IMT 2000 cellular band; cellular-band interference; composite right-left-handed zeroth-order resonators; high-temperature superconducting notch filter; radiotelescopes; Couplings; Harmonic analysis; High temperature superconductors; Layout; Microwave filters; Power transmission lines; Superconducting microwave devices; High-temperature superconductors; microwave filters; radio frequency interference; radioastronomy;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2011.2112357

Filename

5724290