The Design of Wide-Stopband HTS Bandpass Filter

Hong Yang; Yan Zhou

doi:10.4028/www.scientific.net/AMR.936.2214

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 936The Design of Wide-Stopband HTS Bandpass Filter

The Design of Wide-Stopband HTS Bandpass Filter

Abstract:

This paper presents the design of a wide-stopband HTS bandpass filter (BPF). The 9-pole wide-stopband BPF has a center frequency 2.21GHz and bandwidth 100 MHz. Based on the step impedance resonator,this filter increase the harmonic frequency to more than 3 times of fundamental frequency. Optimization simulation results shows that insertion loss is less than 0.3 dB in the passband,and stopband suppression is greater than 80 dB within 0~f0-BW and greater than 60 db within the f0 + BW ~ 3 f0. Within the passband, dB (S (2, 1)) < -20. This design not only achieved a good wide stopband and solved the interference problem but also had a simple structure which is easy to implement.

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Periodical:

Advanced Materials Research (Volume 936)

Pages:

2214-2219

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.936.2214

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Online since:

June 2014

Authors:

Hong Yang*, Yan Zhou

Keywords:

Bandpass Filter, HTS, Insertion Loss, Stepped Impedance Comb Line, Wide-Stopband

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