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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Serzhantov A. M., Tyurnev V. V., Leksikov, Al. A.
Заглавие : Miniature bandpass filter with a wide stopband up to 40F0
Место публикации : Microw. Opt. Technol. Lett.: Wiley-Blackwell, 2012. - Vol. 54, Is. 5. - P.1117-1118. - 2. - ISSN 0895-2477, DOI 10.1002/mop.26751
Примечания : Cited References: 13. - This work was supported in part by the Siberian Branch of the Russian Academy of Sciences under Interdisciplinary integration project No 5 and Federal Target Program "Research and Research-Pedagogical Personnel of Innovation Russia 2009-2013.''
Предметные рубрики: STEPPED IMPEDANCE RESONATOR
OPEN-LOOP RESONATOR
BANDWIDTH
COMBLINE
DESIGN
Coaxial resonators
High selectivity
Metal case
Miniature filter
Narrow band filter
Ultra-wide stopband
Wide stopband
Bandpass filters
Frequency response
Resonators
Ключевые слова (''Своб.индексиров.''): bandpass filter--miniature filter--coaxial resonator--quasi-lumped resonator--ultra wide stopband
Аннотация: A 243-MHz narrowband filter with high selectivity performance has been designed. The filter comprises two electromagnetically coupled quasi-lumped resonators placed into a metal case. Each resonator consists of a tubular capacitor connected in series between two tubular conductors. The measured frequency response of the fabricated filter is presented.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Tyurnev V. V., Shabanov V. F.
Заглавие : One-dimensional photonic crystal bandpass filters
Коллективы : Federal target program Scientific and Pedagogical Personnel for Innovative Russia; Siberian Branch of the Russian Academy of Sciences [109]
Место публикации : Dokl. Phys.: MAIK Nauka-Interperiodica / Springer, 2014. - Vol. 59, Is. 2. - P.73-78. - ISSN 1028-3358, DOI 10.1134/S1028335814020098. - ISSN 1562-6903
Примечания : Cited References: 12. - This study was supported by the Federal target program Scientific and Pedagogical Personnel for Innovative Russia in 2009-2013 and the Siberian Branch of the Russian Academy of Sciences, Integration project no. 109.
Предметные рубрики: RESONATORS
Аннотация: One-dimensional photonic crystals (PC) are periodic multilayer structures consisting of dielectric layers with different refractive indices and thicknesses comparable with electromagnetic wavelengths in a certain frequency range. The synthesized filter contains three half wave-length resonators and four mirrors with quarter wave-length layers. The interior mirrors consist of three layers each, and the exterior ones, of one layer. Thus, the filter comprises 11 layers. In addition, it was demonstrated that, at the pass band frequencies, the half wavelength resonator layers accumulate the energies exceeding by far those of the quarter wavelength mirror layers. Therefore, the Q factor of the mirror material affects the loss in the filter passband much more weakly than the Q factor of the resonator material.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Serzhantov A. M., Bal'va Y. F., Tyurnev V. V., Leksikov Al. A., Galeev R. G.
Заглавие : Implementation of cross couplings in microwave bandpass filters
Коллективы : Siberian Branch of the Russian Academy of Sciences [109]
Место публикации : Microw. Opt. Technol. Lett.: Wiley-Blackwell, 2014. - Vol. 56, Is. 9. - P.2021-2025. - ISSN 0895-2477, DOI 10.1002/mop.28507. - ISSN 1098-2760
Примечания : Cited References: 15. - This work was supported by the Siberian Branch of the Russian Academy of Sciences, Integration Project No. 109.
Предметные рубрики: ULTRA-WIDE STOPBAND
100 DB
RESONATORS
Ключевые слова (''Своб.индексиров.''): microwave filters--elliptic-function bandpass filters--transmission zeros--cross couplings
Аннотация: New quasi-lumped resonator bandpass filters with cross couplings are presented. Coaxial and suspended stripline structures are considered. These filters are notable for their extremely wide and deep upper stopbands at small dimensions. They also have transmission zeros near the passband that significantly improve frequency selectivity. Photographs and measured frequency responses for the four fabricated filters are presented. (C) 2014 Wiley Periodicals, Inc.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Voloshin A. S., Morozov N. V., Galeev R. G.
Заглавие : Broadband microstrip antenna with a hairpin bandpass filter
Коллективы : Ministry of Education and Science of the Russian Federation [14.607.21.0039]
Место публикации : Tech. Phys. Lett.: MAIK Nauka-Interperiodica / Springer, 2015. - Vol. 41, Is. 3. - P.238-241. - ISSN 1063, DOI 10.1134/S1063785015030025. - ISSN 10906533(eISSN)
Примечания : Cited References:8. - This study was supported by the Ministry of Education and Science of the Russian Federation, project no. 14.607.21.0039.
Предметные рубрики: RESONATORS
Аннотация: A new design for a broadband microstrip antenna is proposed, the working band of which is broadened using a bandpass filter based on two hairpin resonators electromagnetically coupled with a half-wave radiating resonator with a rectangular strip conductor. It is shown that the operating frequency range of this antenna is significantly extended as compared with that of analogous antennas, while its directivity and polarization diagrams remain highly stable within this range, which makes this design promising for applications. Operability of the antenna is demonstrated using its operating prototype. The measured characteristics of the antenna prototype agree well with the calculated data.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Tyurnev V. V.
Заглавие : Design of bandpass filters composed of dielectric layers separated by gratings of strip conductors
Коллективы : Ministry of Education and Science of the Russian Federation [14.607.21.0039]
Место публикации : Opt. Lett.: Optical Society of America, 2016. - Vol. 41, Is. 3. - P.536-539. - ISSN 0146-9592, DOI 10.1364/OL.41.000536. - ISSN 1539-4794(eISSN)
Примечания : Cited References:14. - Ministry of Education and Science of the Russian Federation (14.607.21.0039).
Предметные рубрики: Coupling-coefficients
Multilayer structure
Resonators
Formulas
Аннотация: We derive the design formulas for novel multilayer bandpass filters in which every dielectric layer (resonator) is separated from the adjacent layer or external medium by a grating of strip conductors. Every grating acts as a semireflecting mirror. Such novel filters have wide stop bands compared to conventional filters with multilayer dielectric mirrors between resonators at the same passband width. The parameters of the lowpass, lumped-element prototype filter, as well as the theory of resonator-coupling coefficients, are considered in our approach. The computed frequency response of the fifth-order Chebyshev filter that was synthesized using the proposed formulas is also presented.
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