SIR 交叉耦合双通带腔体滤波器

doi:10.3969/j.issn.0255-8297.2014.02.015

Journal of Applied Sciences ›› 2014, Vol. 32 ›› Issue (2): 215-220.doi: 10.3969/j.issn.0255-8297.2014.02.015

• Electronic Engineering • Previous Articles

SIR Cross-Coupling Dual-Band Cavity Filter

KOU Xin, XIAO Zhong-yin, HUANG Chun-yan, LI Hao, CHU Jun-jun

School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China

Received:2011-12-21 Revised:2013-03-25 Online:2014-03-25 Published:2013-03-25

Abstract

Abstract: Using stepped impedance resonators (SIR) as a basic resonator unit of cavity filter, a cross-coupling dual-band cavity filter is designed based on frequency transformation. According to the filter specifications,the design parameters of dual-band filter are calculated using frequency transformation. A model of SIR
cross-coupling dual-band cavity filter is then established and simulated by the 3D simulation software HFSS.Simulation results show good agreement with the result of schematic circuit in ADS, indicating that the method is valid and feasible. The simulation shows that the filter size is significantly reduced, while the restrain ability of stop-band is enhanced due to cross coupling. Thus the requirements of small size and good stop-band performance of the filter are met.

Key words: cavity filter, stepped impedance resonators (SIR), dual-band, frequency transformation, crosscoupling

CLC Number:

TN713

KOU Xin, XIAO Zhong-yin, HUANG Chun-yan, LI Hao, CHU Jun-jun. SIR Cross-Coupling Dual-Band Cavity Filter[J]. Journal of Applied Sciences, 2014, 32(2): 215-220.

References

[1] TSAI L C, HSUE C W. Dual band bandpass filters using equal-length coupled-serial-shunted lines and Z-transform technique[J]. IEEE Transactions on Microwave Theory and Techniques, 2004, 52(4): 1111-1117.

[2] CHEN C Y, HSUE C W. A simple and effective method for microstrip dual-band filters design[J]. IEEE Microwave and Wireless Components Letters, 2006, 16(5): 246-248.

[3] WU B, LIANG C H, LI Q, et al. Novel dual-band filter incorporating defected SIR and microstrip SIR[J]. IEEE Microwave and Wireless Components Letters, 2008, 18(6): 392-394.

[4] MOKHTAARI M, BORNEMANN J, RAMBABU K, et al. Coupling matrix design of dual and trip passband filters[J]. IEEE Transactions on Microwave Theory and Techniques, 2006, 54(11): 3940-3946.

[5] CHIOU Y, WU C, KUO J T. New miniaturized dual-mode dual-band ring resonator bandpass filter with microwave C-sections[J]. IEEE Microwave and Wireless Components Letters, 2010, 20(2): 67-69.

[6] SHI J, XUE Q. Novel balanced dual-band bandpass filter using coupled stepped-impedance resonators[J]. IEEE Microwave and Wireless Components Letters, 2010, 20(1): 19-21.

[7] DJAIS A, NEDIL M, HABIB A M, et al. Compact multilayer dual-band filter using slot coupled stepped-impedance resonators structure[J]. Microwave and Optical Technology Letters, 2009, 51(7): 1635-1638.

[8] GUAN X H, MA Z W, CAI p. A novel triple-band microstrip bandpass filter for wireless communication[J]. Microwave and Optical Technology Letters, 2009, 51(6): 1568-1569.

[9] MONDAL P, CHEN K J. Design of dual-band bandpass filters using stub-loaded open-loop resonators[J]. IEEE Transactions on Microwave Theory and Techniques, 2008, 56(1): 150-155.

[10] CHEN F C, CHU Q X, TU Z H. Tri-band bandpass filter using stub loaded resonators, 2008, 44(12): 747-748.

[11] WANG Y, YU M. True inline cross-coupled coaxial cavity filters[J]. IEEE Transactions on Microwave Theory and Techniques, 2009, 57(12): 2958-2965.

[12] G. MACCHIARELLA G, S TAMIAZZO S. Design techniques for dual-passband filters[J]. IEEE Transactions on Microwave Theory and Techniques, 2005, 53(11): 3265-3271.

[13] CAMERON R J. Advanced coupling matrix synthesis techniques for microwave filters[J]. IEEE Transactions on Microwave Theory and Techniques, 2003, 51(1): 1-10.

SIR Cross-Coupling Dual-Band Cavity Filter

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