Title :
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
fDate :
4/1/2011 12:00:00 AM
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;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2011.2112357
