volume | PIER Journals

Abstract

A new quasi-lumped suspended-substrate stripline structure admitting implementation of miniature highly selective narrowband filters is studied. Appreciable improvement of the device selectivity is achieved with supplementary strip conductors introduced between the resonators, which induce attenuation poles near both passband edges. Furthermore, these supplementary conductors reducing the coupling between the resona-tors allow diminishing the inter-resonator spacing and the total size. A four-resonator filter is synthesized using the intelligence optimization method. Experimental results of the manufactured filter are presented.

1. Belyaev, B. A., A. A. Leksikov, V. V. Tyurnev, and A. V. Kazakov, Bandpass filter, Patent RU 2237320, Sep. 27, 2004.

2. Tyurnev, V. V. and I. A. Dovbysh, "Resonant properties of double-wire suspended stripline resonator," 15th Int. Crimean Conf. "Microwave & Telecommunication Technology", 487-489, Sevastopol, Ukraine, 2005.

3. Belyaev, B. A., A. A. Leksikov, V. V. Tyurnev, and A. V. Kazakov, "Strip-line filter with suspended substrate," 15th Int. Crimean Conf. "icrowave & Telecommunication Technology", 506-507, Sevastopol, Ukraine, 2005.

4. Menzel, W. and A. Balalem, "Quasi-lumped suspended stripline filters and diplexers," IEEE Trans. Microw. Theory Tech., Vol. 53, 3230-3237, Oct. 2005.
doi:10.1109/TMTT.2005.855139

5. Zhang, Y. K. A. Zaki, A. J. Piloto, J. Tallo, "Miniature broadband bandpass filters using double-layer coupled stripline resonators," IEEE Trans. Microw. Theory Tech., Vol. 54, 3370-3377, Aug. 2006.
doi:10.1109/TMTT.2006.879176

6. Balalem, A., W. Menzel, J. Machac, and A. Omar, "A simple ultra-wideband suspended stripline bandpass filter with very wide stop-band," IEEE Trans. Microw. Wireless Compon. Lett., Vol. 18, 170-172, Mar. 2008.
doi:10.1109/LMWC.2008.916779

7. Belyaev, B. A., M. I. Nikitina, and V. V. Tyurnev, "Effective method of microstrip filter optimization," IEEE --- Russia Conference "High Power Microwave Electronics: Measurements, Identification, Applications", (MIA-ME097) , 104-109, Novosibirsk, Russia, Sep.23-25, 1997 (in Russian).

8. Belyaev, B. A. and V. V. Tyurnev, "The method for microstrip filters parametric synthesis," 16th Int. Crimean Conf. "Microwave & Telecommunication Technology", (CriMiCo02006), Vol. 2, 517-519, Sevastopol, Ukraine, 2006.
doi:10.1109/CRMICO.2006.256088

9. Dovbysh, I. A. and V. V. Tyurnev, "Peculiarities of intelligence optimization of a microstrip filter on folded dual-mode resonators," PIERS Proceedings, 1161-1163, Moscow, Russia, Aug. 18-21, 2009.

10. Dovbysh, I. A. and V. V. Tyurnev, "Intelligence method for optimizing a microstrip filter based on folded dual-mode resonators," J. of Communications Technology and Electronics, Vol. 54, No. 11, 1269-1273, 2009.
doi:10.1134/S1064226909110059

11. Dovbysh, I. A. and V. V. Tyurnev, "Synthesis and investigation of three-section microstrip filter on folded dual-mode stepped-impedance resonators," Progress In Electromagnetics Research M, Vol. 12, 17-28, 2010.
doi:10.2528/PIERM10012507

12. Belyaev, B. A., M. I. Nikitina, and V. V. Tyurnev, "Expert system FILTEX for synthesis of microstrip filters," Elektronnaya Tekhnika. SVCh-tekhnika, No. 1(473), 45-50, 1999 (in Russian).

13. Belyaev, B. A., S. V. Butakov, N. V. Laletin, A. A. Leksikov, and V. V. Tyurnev, "Expert system Filtex32 for computer-aided design of bandpass microstrip filters," 15th Int. Crimean Conf. "icrowave & Telecommunication Technology", (CriMiCo02005), Vol. 2, 504-505, Sevastopol, Ukraine, 2005.

14. Tyurnev, V. V., "Coupling coefficients of resonators in microwave filter theory," Progress In Electromagnetics Research B, Vol. 21, 47-67, 2010.

Dr. Boris Afanasievich Belyaev

Dr. Aleksandr Leksikov

Dr. Alexey Mikhailovich Serzhantov

Prof. Vladimir V. Tyurnev