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A high temperature superconducting quasi‐elliptic notch filter for radioastronomy
Author(s) -
CoronaChavez Alonso,
LlamasGarro Ignacio,
J. Lancaster Michael
Publication year - 2010
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.24863
Subject(s) - microwave , band stop filter , capacitive sensing , resonator , superconductivity , interference (communication) , electrical engineering , filter (signal processing) , engineering , electronic engineering , physics , optoelectronics , materials science , topology (electrical circuits) , condensed matter physics , telecommunications , low pass filter , channel (broadcasting)
A novel miniaturized high temperature superconductor (HTS) four‐pole filter for the Radio Frequency Interference Mitigation of the 900 MHz cellular band in radiotelescopes is presented. This circuit incorporates a new type of capacitive cross‐coupling between nonadjacent resonators to achieve a quasi‐elliptic response. Design procedure along with simulation and experimental results are shown. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 88–90, 2010; Published online in Wiley InterScience (www.interscience. wiley.com). DOI 10.1002/mop.24863