Design of absorptive superconducting filter. Issue 11 (2nd May 2017)

• Record Type: Journal Article
• Authors: Ma, Pnegyu; Wei, Bin; Heng, Yong; Luo, Chenjie; Guo, Xubo; Cao, Bisong
• Is Part Of: Electronics letters. Volume 53:Issue 11(2017)
• Page Start: 728
• Page End: 730
• Publication Date: 2017-05-02
• Subjects: superconducting filters -- band‐pass filters -- Chebyshev filters -- resonator filters; absorptive superconducting filter design -- n‐pole absorptive reciprocal filter -- single‐mode resonators -- four‐pole Chebyshev response -- absorptive band‐pass filter design -- four‐pole filters -- two‐quadrature hybrids -- circuit structure -- superconducting wafers -- magnesium oxide substrate; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2017.0768
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : An n ‐pole absorptive reciprocal filter consists of at least 2 n single‐mode resonators is proved. An absorptive band‐pass filter with four‐pole Chebyshev response is designed with two four‐pole filters and two‐quadrature hybrids. The quadrature hybrids are used to divide the signals into two paths. Additional two ports are introduced to absorb the reflected energy. This circuit structure is easy in fabrication on superconducting wafers. The filter is successfully designed and fabricated on an MgO substrate. The measured results match well with the simulations.