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

作者：Corona Chavez A^*; Nogues Hoyos M; Esteras Otal L; Murthy D V B; Sanchez Rinza B

来源：IEEE Transactions on Applied Superconductivity, 2011, 21(2): 68-70.

DOI：10.1109/TASC.2011.2112357

• High-temperature superconductors
• microwave filters
• radioastronomy
• radio frequency interference

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.

• 出版日期2011-4