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.

• Periodical: Advanced Materials Research (Volume 936)
• Pages: 2214-2219
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.936.2214
• Online since: June 2014
• Authors: Hong Yang*, Yan Zhou
• Keywords: Bandpass Filter, HTS, Insertion Loss, Stepped Impedance Comb Line, Wide-Stopband

References

[1] Narayan Rana. Compact Wide Stopband SIR Filter for Radio Altimeter[C]. Aerospace Conference, Big Sky, MT. 2012IEEE, 2012. pp: 1-5.

DOI: 10.1109/aero.2012.6187095

[2] Xingbing Ma, Hongxing Zheng, Chengguang Sun. Compact Lowpass Filter with Wide Stopband[C]. ConsumerElectronics. 2012IEEE. 2012. PP: 1720-1722.

[3] T. Zhang, J. Du, Y.J. Guo and X. -W. Sun. On-chip integration of HTS bandpass and lowpass filters with Josephson mixer[J]. ELECTRONICS LETTERS, 2012, 48 (12): 729-731.

DOI: 10.1049/el.2012.1411

[4] LIN Ya, GAO Mingwu, CAI Kai, HUANG Yipei. Design of microstrip bandpass filter with upper-skirt frequency suppression[J]. Journal of Chongqing university of post and telecommunications, 23(1): 61-64.

[5] HAN Hongshuo, CHEN Jie. 21st century foreign deep space exploration development plans and progress. Spacecraft Engineering, 2008 V01. 17 No. 3.

[6] Lung-Hwa Hsieh and Kai Chang, Compact Elliptic-Function Low-pass Filters Using　Microstrip Stepped Impedance Hairpin Resonators[J]. IEEE Ttans. Microwave TheoryTech, January2003. 51(1): 193-199.

DOI: 10.1109/tmtt.2002.806901

[7] LIU Yuan, QIAN Kewei. Nover optimization algorithms for cross-coupled filter[J]. Journal of Chongqing university of post and telecommunications, 24(6): 770-775.

[8] GAN Benba, WU Wanchun. The structure and design of modern filter [M]. beijing: Science Press, (1973).

[9] LIU Guoying. Research of high sensitivity channelized superheterodyne receiver front-end system[D]. chengdu: University of Electronic Science and Technology, (2009).

[10] HAN Fangmao. Research of high sensitivity channelized receiver front-end subsystem[D]. chengdu: University of Electronic Science and Technology, (2008).