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BANDPASS FILTER ON CONNECTED MICROSTRIP LINES WITH TWO SECTOR RESONATORS

E. P. Vasiliev, Dr. in technical sciences, Professor, Department of Space Technologies, RSREU, Ryazan, Russia;
orcid.org/0000-0003-2747-7012, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Nguyen Dang Hop, Master student, Department of Radio Control and Communication, RSREU, Ryazan, Russia;
orcid.org/0000-0002-2456-5220, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Lyu Thanh Dat, Master student, Department of Radio Control and Communication, RSREU, Ryazan, Russia;
orcid.org/0000-0003-3347-1469, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

The design of compact bandpass filter based on half-wave resonator with two barrage poles provided by two sector resonators open at the end is considered. A study of the proposed filter design is carried out using analytical relations obtained on the basis of circuit theory and matrix analysis as well as electrodynamics methods of Green's function and finite elements. The aim of this work is to study the original design of bandpass filter with improved quality indicators (compensation of parasitic band at doubled central frequency and increase in stop level and band). The correctness of modeling results is confirmed by a comparative analysis of the data from machine experiment obtained using circuitry and electrodynamics modeling in S-band. The possibility of using the filter in infocommunication systems of space communication is substantiated.

Key words: bandpass filter, sector resonator, coupled microstrip lines, electrodynamics and circuit simulation, machine experiment, S-band.

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