D.N. Nigomedzyanov1, N.Yu. Lobachev2, E.V. Sarychev3

1-3 PJSC “Radiofizika” (Moscow, Russia)

1,2 Moscow Aviation Institute (National Research University) (Moscow, Russia)

1 nigomedzyanov.57@mail.ru; 2 mr.NikitaYurievich@mail.ru; 3 johnicksev@mail.ru

Bandpass filters are subject to increasingly stringent requirements regarding selectivity (i.e., the ability to discriminate frequency components of a signal). To compare the selectivity of a bandpass filter under development with that of a prototype, a common evaluation method involves the use of the shape factor of the frequency response. This factor is calculated as the ratio of the filter's passband width at one specified attenuation level to its passband width at another specified attenuation level. However, due to a shift in the reference point of the frequency response of the filter under development relative to the prototype, measuring the shape factor at fixed attenuation levels introduces an error in the calculation.

Nigomedzyanov D.N., Lobachev N.Yu., Sarychev E.V. On some aspects of selectivity calculation for bandpass filters. Radiotekhnika. 2026. V. 90. № 4. P. 62−67. DOI: https://doi.org/10.18127/j00338486-202604-08 (In Russian)

1. Dmitriev D.D. Reshaya zadachi importozameshcheniya. Rezul'taty nauchnoj kooperacii voennogo uchebnogo centra SFU s Krasnoyarskim nauchnym centrom Sibirskogo otdeleniya RAN. Vestnik voennogo obrazovaniya. 2023. № 4(43). S. 84-88 (in Russian).
2. Selivanov A.A., Dul'nev P.A. Obshchie operativno-strategicheskie osnovy primeneniya vojsk bespilotnyh sistem. Vestnik Akademii voennyh nauk. 2025. № 4(93). S. 14-25 (in Russian).
3. Vdovin A.V., Kostin K.K. Tekhnologicheskoe preimushchestvo kak napravlenie dostizheniya prevoskhodstva nad protivnikom. Vestnik Akademii voennyh nauk. 2024. 2(87). S. 106-112 (in Russian).
4. Andreev G.I., Zamarin M.E., Sozinov P.A., Soldatov V.P. Osobennosti razvitiya radiotekhnicheskih sistem radioelektronnoj bor'by. Radiotekhnika. 2021. T. 85. № 12. S. 5-30. DOI: https://doi.org/10.18127/j00338486-202112-01 (in Russian).
5. Fomin D.G. Metodika proektirovaniya ob"emno-modul'nyh chastotno-selektivnyh SVCh ustrojstv i ee primenenie. Avtoref. diss. … kand. tekhn. nauk. 2023. 172 s. (in Russian).
6. Darovskih S.N., Fomin D.G., Dudarev N.V., Klygach D.S., Vahitov M.G. Eksperimental'noe issledovanie polosno-propuskayushchih fil'trov na osnove mnogoslojnoj tekhnologii. Vestnik Yuzhno-Ural'skogo gos. un-ta. Ser. Komp'yuternye tekhnologii, upravlenie, radioelektronika. 2022. T. 22. № 4. S. 48-55 (in Russian).
7. Lobachyov N.Yu., Ochkov D.S., Shepelyuk M.Yu., Bliznyuk L.A., Basov N.A. Vliyanie mikrostruktury keramiki na parametry polosno-propuskayushchih fil'trov na ob"emnyh keramicheskih dvuhrezonatornyh monoblokah. Radiotekhnika. 2021. T. 85. № 10. S. 11−18. DOI: https://doi.org/10.18127/j00338486-202110-02 (in Russian).
8. Hodenkov S.A. Issledovanie mikropoloskovyh polosno-propuskayushchih fil'trov. Uspekhi sovremennoj radioelektroniki. 2023. T. 77.
   № 12. S. 50-59. DOI: https://doi.org/10.18127/j20700784-202312-07 (in Russian).
9. Mattej D.L., Yang L., Dzhons E.M.T. Fil'try SVCh, soglasuyushchie cepi i cepi svyazi. M.: Svyaz'. 1971. 900 s. (in Russian).
10. Grushin P.I. Proektirovanie polosovogo fil'tra s minimal'nymi trebovaniyami k realizacii dlya podavleniya pomekh v blizhnej zone. Radiotekhnicheskie i telekommunikacionnye sistemy. 2012. № 4(8). S. 4-9 (in Russian).
11. Bunin A.V., Gevorkyan V.M., Kazancev Yu.A., Mihalin S.N. Diplekser s-diapazona na dielektricheskih rezonatorah. Bazovaya model'.
    Elektronnaya tekhnika. Seriya 1. SVCh-tekhnika. 2010. № 3(506). S. 31-37 (in Russian).
12. Kudryavcev E.M. MathCad. Polnoe rukovodstvo po russkoj versii. Uchebnoe posobie. M.: DMK Press. 2007. 592 s. (in Russian).
13. Shvedov E.G., Tarasova I.A. Statisticheskaya obrabotka dannyh v Excel: Uchebnoe posobie. Volgograd: Volgogradskij gos. tekhnich. un-t. 2015. 64 s. (in Russian).