Ya.F. Bal’va – Ph.D. (Phys.-Math.), Research Scientist, Kirensky Institute of Physics , Siberian Branch,  Russian Academy of Sciences (Krasnoyarsk)

E-mail: ya.f.balva@iph.krasn.ru

A.A. Leksikov – Ph.D. (Eng.), Research Scientist, Kirensky Institute of Physics , Siberian Branch,  Russian Academy of Sciences (Krasnoyarsk)

E-mail: laa@iph.krasn.ru

E.O. Grushevsky – Post-graduate Student, Kirensky Institute of Physics , Siberian Branch, 

Russian Academy of Sciences (Krasnoyarsk)

E-mail: gr.e.o@iph.krasn.ru

M.O. Savishnikov – Post-graduate Student, Siberian Federal University (Krasnoyarsk)

E-mail: savishnikov2012@yandex.ru

V.S. Denisenko – Post-graduate Student, Siberian Federal University (Krasnoyarsk) E-mail: blovef1@gmail.com

A new design of a multimode stripline resonator on a suspended substrate is proposed and investigated. A miniature ultra-wideband bandpass filters based on the structure possess extremely wide high-frequency stopband that extends over 3 octaves.

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