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U-band finline bandstop filter with dual-mode resonator

Published online by Cambridge University Press:  16 May 2014

Y. Yang ,
Y.H. Zhang ,
Y. Fan  and
Y.X. Li
Y. Yang
Affiliation:
EHF Key Lab of Fundamental Science, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
Y.H. Zhang*
Affiliation:
EHF Key Lab of Fundamental Science, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
Y. Fan
Affiliation:
EHF Key Lab of Fundamental Science, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
Y.X. Li
Affiliation:
EHF Key Lab of Fundamental Science, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
*
Corresponding author: Y.H. Zhang Email: [email protected]
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Abstract

In this work, multi-mode resonator technology is applied to finline bandstop filter (BSF) to improve its performance. A finline BSF with two transmission zeros in the stopband is realized by using a new kind of dual-mode finline resonator proposed in this paper. The bandwidth of the designed filter is clearly broadened to three times that of the traditional finline BSF without enlarging its size. Its measured bandwidth under 20 dB rejection is about 600 MHz and the insertion loss in the passband is below 0.4 dB including the insertion loss of two finline-to-waveguide transitions. There is a good agreement between the simulated and measured results.

Keywords

FiltersPassive components and circuitsFinlineBandstop filters (BSFs)Dual-mode resonator
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 7 , Issue 2 , April 2015 , pp. 135 - 139
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2014 

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References

REFERENCES

[1]Knorr, J.B.; Shayda, P.M.: Millimeter-wave fin-line characteristics. IEEE Trans. Microw. Theory Tech., 28 (1980), 737–743.Google Scholar
[2]Knorr, J.B.: Equivalent reactance of a shorting septum in a fin-line-theory and experiment. IEEE Trans. Microw. Theory Tech., 29 (1981), 1196–1202.Google Scholar
[3]Ramakrishna, P.V.; Chadha, D.: Computation of the propagation characteristics of finlines. J. Electromagn. Waves Appl., 7 (1993), 943–958.Google Scholar
[4]Fernandes, H.C.C.: TTL method applied to the fin-line resonators. J. Electromagn. Waves Appl., 15 (2001), 933–943.Google Scholar
[5]Meier, P.J.: Integrated fin-line millimeter components. IEEE Trans. Microw. Theory Tech., 22 (1974), 1209–1216.Google Scholar
[6]Omar, A.S.; Schunemann, K.: Realizations and design of fin-line bandstop filters, in IEEE MTT-S Int., Microwave Symp. Digest, Boston, MA, 1983.Google Scholar
[7]Vahldieck, R.: Quasi-planar filters for millimeter-wave applications. IEEE Trans. Microw. Theory Tech., 37 (1989), 324–334.Google Scholar
[8]Biswas, A.; Beat, B.: Accurate characterization of coupled stub in asymmetric finline and realization of bandstop filter, in 18th Eur. Microwave Conf., Stockholm, 1988.Google Scholar
[9]Bastioli, S.; Marcaccioli, L.; Sorrentino, R.: Compact dual-mode rectangular waveguide filters using square ridge resonators. Int. J. Microw. Wirel. Tech., 1 (2009), 241–247.Google Scholar
[10]Sarkar, P.; Ghatak, R.; Pal, M.; Poddar, D.R.: A planar compact dual-band bandpass filter using stepped impedance resonator and interdigital capacitor. Int. J. Microw. Wirel. Tech., 3 (2001), 671–674.Google Scholar
[11]Nosrati, M.; Daneshmand, M.: Compact microstrip ultra-wideband double/single notch-band band-pass filter based on wave's cancellation theory. IET Microw. Antennas Propag., 6 (2012), 862–868.Google Scholar
[12]Nosrati, M.; Daneshmand, M.: Developing single-layer ultra-wideband band-pass filter with multiple (triple and quadruple) notches. IET Microw. Antennas Propag., 7 (2013), 612–620.Google Scholar
[13]Li, Z.P.; Su, T.; Zhang, Y.L.; Wang, S.J.; Liang, C.H.: Ultra-wideband multi-stub loaded ring resonator bandpass filter with a notched-band. Prog. Electromagn. Res. C, 41 (2013), 27–39.Google Scholar
[14]Mirzaee, M.; Virdee, B.S.; Noghanian, S.: Compact ultra-wideband bandpass filter with variable notch characteristics based on transversal signal-interaction concepts. Int. J. RF Microw. Comput.-Aided Eng., 14 (2014), 1–11.Google Scholar