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1.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Govorun I. V., Belyaev B. A., Zav'yalov Ya. B., Shumilov T. Y., Afonin A. O., Ugryumov A. V., Galeev R. G.
Заглавие
: A 10 GHz monolithic
filter
based on stripline resonators with a split conductor
Колич.характеристики
:6 с
Место публикации
: Dokl. Phys. - 2023. - Vol. 68, Is. 12. - P.434-439. - ISSN 10283358 (ISSN),
DOI
10.1134/S1028335823120030. - ISSN 15626903 (eISSN)
Примечания
: Cited References: 18. - This work was carried out within the framework of Agreement no. 470 of August 30, 2022, between the Institute of Physics, Siberian Branch, Russian Academy of Sciences; the Regional Science Foundation; and JSC NPP Radiosvyaz, for a competition of scientific, technical, and innovative projects in the interests of the first climate Scientific and Educational Center "Yenisei Siberia"
Аннотация:
The monolithic design of a compact bandpass
filter
X-band is made on the technology of multilayered printed circuit boards. Quarter-wave stripline resonators of the
filter
have two conductors divided by a layer of prepreg having low parameters that bond together the design. This eliminates the influence of the prepreg on the characteristics of the devices, ensuring good repeatability of filters in mass production. To increase the high-frequency stopband of the
filter
, one of the conductors of each resonator is cut in half by a transverse slit. The constructive sizes of the device were obtained by parametric synthesis using the electrodynamic analysis of its 3D model. The experimental data of the five-order
filter
are in good agreement with the electromagnetic simulation of
filter
of the 3D model. The experimental device has a central frequency of the passband of 10 GHz and a fractional bandwidth of 5.7%, and its dimensions and weight are 18.0 × 5.4 × 2.1 mm3 and 0.5 g. The important advantage of the developed design is the possibility of its installation on the board using the surface mounting method.
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2.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Tyurnev V. V., Voloshin A. S., Leksikov An. A., Galeev R. G., Shabanov V. F.
Заглавие
: A Bandpass
Filter
Based on Dielectric Layers with a Strip Conductor Subwavelength Grating at Their Interfaces
Место публикации
: Dokl. Phys. - 2020. - Vol. 65, Is. 9. - P.343-348. - ISSN 10283358 (ISSN),
DOI
10.1134/S1028335820090013
Примечания
: Cited References: 12. - This study was supported by the Ministry of Science and Higher Education of the Russian Federation, state assignment no. FEFE-2020-0013 “Development of the Theory of Self-Configurable Machine-Learning Algorithms for Simulating and Predicting Characteristics of Complex Systems”
Аннотация:
The design of a multilayer bandpass
filter
has been investigated, in which each of the half-wavelength resonators consists of two dielectric layers with outer strip conductor gratings in the form of square grids and inner ones in the form of square patches. The grids serve as mirrors with specified reflective properties, which ensure optimal couplings of the outer resonators with free space and optimal coupling between the resonators. The patch gratings make it possible to tune the resonator eigenfrequency during the
filter
synthesis. The efficiency of the quasi-static calculation of the frequency response for the layered structure is shown for the case of a lattice period smaller than the wavelength in the dielectric and much smaller than the layer thickness. Since the calculation does not require much computing power, the parametric synthesis of the device can be performed on a conventional personal computer. The measured characteristics of the prototype of the synthesized third-order
filter
with a fractional passband width of ∼10% and a central passband frequency of ∼10.6 GHz are in good agreement with the calculation. The proposed design allows one to fabricate multilayer panels radio transparent in a certain frequency band for hiding microwave antennas.
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3.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Tyurnev V. V., Voloshin A. S., Leksikov An. A., Galeev R. G., Shabanov V. F.
Заглавие
: A Bandpass Filter–Polarizer Based on a Dielectric Multilayer with Strip Conductor Gratings
Место публикации
: Dokl. Phys. - 2020. - Vol. 65, Is. 7. - P.225-229. - ISSN 10283358 (ISSN),
DOI
10.1134/S1028335820050067
Примечания
: Cited References: 10. - This study was financially supported by the Ministry of Science and Higher Education of the Russian Federation in the implementation of the integrated project “Creation of a production of earth stations of advanced satellite communications systems to ensure the coherence of hard-to-reach, northern and Arctic territories of Russian Federation,” implemented with the participation of the Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences” (agreement number 075 -11-2019-078 dated 13.12.2019)
Аннотация:
A new design of a multilayer bandpass
filter
is proposed, in which each resonator consists of two identical dielectric layers with parallel strip conductor gratings on their outer surfaces and an orthogonal strip conductor grating between the layers. The
filter
designed on the basis of crossed gratings works simultaneously as a polarizer transparent in a specified frequency band if the electric field vector of a wave is parallel to the outer strip conductors but reflects waves with an orthogonal polarization. The data from a numerical electrodynamic analysis of a 3D model of the proposed device agree well with the results of the measurements performed on the fifth-order filter–polarizer prototype with a relative bandwidth of 14% and a central frequency of 13.4 GHz. The microwave power loss in the
filter
passband is ~1.2 dB under parallel polarization of the electromagnetic wave and more than 40 dB under orthogonal polarization.
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4.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Serzhantov A. M., Leksikov An. A., Bal'va Ya. F., Aleksandrovsky A. S., Galeev R. G
Заглавие
: A high-selectivity waveguide bandpass
filter
with interference suppression by more than 120 dB in rejection band
Колич.характеристики
:5 с
Место публикации
: Tech. Phys. Lett. - 2023. - Vol. 49, Is. 5. - P.72-76. - ISSN 10637850 (ISSN),
DOI
10.21883/TPL.2023.05.56034.19541. - ISSN 10906533 (eISSN)
Примечания
: Cited References: 10. - This study was carried out under agreement No. 470 dated August 30, 2022, between the Kirensky Institute of Physics (Siberian Branch, Russian Academy of Sciences), the Regional Science Foundation, and ”AO ”NPP ”Radiosvyaz“ as part of a competitive tender of research-andengineering and innovative projects for the first climatological research and education center ”Yenisey Siberia“
Аннотация:
The design of a 10th-order waveguide bandpass
filter
with an additional inductive cross-coupling between non-adjacent resonators has been proposed and studied. An inductive coupling is formed by a U-shaped conductor structure with grounded ends that is formed in the
filter
cover. This method of cross-coupling organization ensures not only the temperature stability of the characteristics, but also the manufacturability of the structure. The high selectivity of the device is achieved by both the attenuation poles located near the passband, as well as the level of suppression in the stopbands, exceeding 120 dB. The passband loss of the fabricated
filter
is ~ 0.8 dB at its central frequency f0=18.2 GHz and relative bandwidth Δf/f0=1.5%. The small dimensions (135 x 30 x 10 mm) and the weight of about 200 g of the device, with simultaneously high electrical characteristics show the promise of its use, for example, in on-board and ground-based space communication systems.
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5.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Khodenkov S. A., Govorun I. V., Serzhantov A. M.
Заглавие
: A high-selectivity wideband bandpass dual-mode microstrip
filter
Место публикации
: Dokl. Phys. - 2022. - Vol. 67, Is. 3. - P.89-93. - ISSN 10283358 (ISSN),
DOI
10.1134/S1028335822020021. - ISSN 15626903 (eISSN)
Примечания
: Cited References: 12. - This study was carried out within a State Assignment, project no. FEFE-2020-0013, of the Ministry of Science and Higher Education of the Russian Federation
Аннотация:
A half-wave microstrip resonator design with an irregular strip conductor short-circuited to the screen by its ends has been investigated. Based on the resonances of the first two oscillatory modes of this resonator, a miniaturized second-order
filter
with a fractional bandwidth from 40% to 90% has been implemented, which has a wide high-frequency stopband. A prototype of the designed eight-order
filter
based on four dual-mode resonators with a passband center frequency of 2 GHz and a fractional bandwidth of 40% has been fabricated on an alumina substrate 45.0 × 10.5 × 1.0 mm3 in size with a permittivity of ε = 9.8. The
filter
frequency response slopes are extremely steepness due to two attenuation poles located on the left and right sides of the passband. The experimental characteristics of the prototype are in good agreement with the data of the numerical electromagnetic simulation of the 3D model of the
filter
.
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6.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Serzhantov A. M., Bal'va Y. F., Leksikov An. A., Grushevskii E. O.
Заглавие
: A Highly Selective Bandpass
Filter
Based on Suspended Substrate Resonators with a Two-Sided Stripline Pattern
Коллективы
: Ministry of Education and Science of the Russian Federation [14.575.21.0142, RFMEFI57517X0142]
Место публикации
: Tech. Phys. Lett. - 2019. - Vol. 45, Is. 5. - P485-488. - ISSN 1063-7850,
DOI
10.1134/S1063785019050225. - ISSN 1090-6533(eISSN)
Примечания
: Cited References: 14. - This study was supported in part by the Ministry of Education and Science of the Russian Federation, agreement no. 14.575.21.0142, unique project identifier RFMEFI57517X0142.
Предметные рубрики:
MICROSTRIP
FEATURES
Аннотация:
New resonator design employing a hairpin stripline conductor with a stub situated on one side of a dielectric substrate and regular stripline conductors (connected to a screen) on the other side. Eigenfrequencies of the first three oscillation modes of this resonator can be made closer to each other, so that the resonances of two modes are involved in the formation of the passband while the third mode resonance forms a minimum of the transmission coefficient adjacent to the passband. A structure comprising four resonators of this type has the characteristic of an eighth-order bandpass
filter
arranged in a case with 45 × 16 × 6.25-mm internal dimensions possessing f0 = 0.52 GHz central frequency with a 14% relative bandwidth. The
filter
is highly selective due to the attenuation poles being close to the pass band and a wide high-frequency stopband extending above a fivefold f0 value at a level of –100 dB.
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7.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Serzhantov A. M., Leksikov An. A., Bal'va Y. F., Grushevskii E. O., Khodenkov S. A.
Заглавие
: A highly selective stripline lowpass
filter
with more than 100-dB wide stopband attenuation
Коллективы
: Ministry of Education and Science of the Russian FederationMinistry of Education and Science, Russian Federation [02G25.31.0330]
Место публикации
: Tech. Phys. Lett. - 2020. - Vol. 46, Is. 4. - P.364-367. - ISSN 1063-7850,
DOI
10.1134/S1063785020040173. - ISSN 1090-6533(eISSN)
Примечания
: Cited References: 8. - This study was supported in part by the Ministry of Education and Science of the Russian Federation in the framework of agreement no. 02G25.31.0330.
Аннотация:
A new miniature design of a highly selective lowpass
filter
based on a suspended substrate with a two-sided stripline pattern has been developed. The
filter
frequency response slope (cutoff attenuation rate) and stopband attenuation depth are determined by transmission zeros, the number of which is equal to the
filter
order. An experimental prototype of a fifth-order lowpass
filter
on 0.5-mm-thick alumina substrate with dielectric permittivity ε = 9.8 has been synthesized with the aid of numerical electrodynamic analysis of a three-dimensional model. The cutoff frequency of the
filter
passband at a –1-dB level is fc = 1.75 GHz. The stopband width at a –100-dB attenuation level reaches 4.4fc.
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8.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Khodenkov S. A., Galeev R. G., Shabanov V. F.
Заглавие
: A Lowpass
Filter
Based on a 2D Microstrip Electromagnetic Crystal
Коллективы
: Ministry of Education and Science of the Russian Federation [RFMEFI60417X0179]
Место публикации
: Dokl. Phys. - 2019. - Vol. 64, Is. 3. - P.85-89. - ISSN 1028-3358,
DOI
10.1134/S1028335819030017. - ISSN 1562-6903(eISSN)
Примечания
: Cited References: 14. - This study was supported by the Ministry of Education and Science of the Russian Federation, project no. RFMEFI60417X0179.
Аннотация:
A new construction of a lowpass
filter
was developed based on a two-dimensional microstrip electromagnetic crystal, which had a steeper slope of the frequency response as compared to a
filter
consisting of a one-dimensional microstrip electromagnetic crystal. The investigated lowpass
filter
construction is characterized by a high workability and ease of manufacturing. Electrodynamic numerical simulation of the 3D model of the considered microstrip structure agrees well with the experiment, which allows conducting parametric synthesis of devices with the required properties using a personal computer.
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9.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Leksikov A. A., Serzhantov A. M., Govorun I. V., Afonin A. O., Ugryumov A. V., Leksikov An. A.
Заглавие
: A method of stopband widening in BPF based on two-conductor suspended-substrate resonators
Место публикации
: Prog. Electromagn. Res. Lett. - 2018. - Vol. 72. - P.11-16. - ISSN 19376480 (ISSN),
DOI
10.2528/PIERL17102302
Примечания
: Cited References: 10
Ключевые слова
(''Своб.индексиров.''): fourth order--microwave bandpass
filter
--stopband--stripline resonators--suspended substrates--wide upper stopband
Аннотация:
A method aiming to widen the upper stopband in a microwave bandpass
filter
based on two-conductor suspended-substrate stripline resonators is described in this letter. Applicability of the method is illustrated by simulating and fabricating fourth-order
filter
that has a very wide upper stopband: Δfstop/f0 = 7.92 measured at a level -50 dB, which is achieved because the widths of the inner resonators in the structure are 1.4 times greater than that of the outer ones.
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10.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Tyurnev V. V., Voloshin A. S., Galeev R. G.
Заглавие
: A microwave bandpass
filter
on dielectric layers with metal grids
Коллективы
: Ministry of Education and Science of the Russian Federation [14.575.21.0142, RFMEFI57517X0142]
Место публикации
: Tech. Phys. Lett. - 2018. - Vol. 44, Is. 5. - P.408-411. - ISSN 1063-7850,
DOI
10.1134/S1063785018050152. - ISSN 1090-6533(eISSN)
Примечания
: Cited References: 13. - This study was supported in part by the Ministry of Education and Science of the Russian Federation, project no. 14.575.21.0142 (unique project identifier code RFMEFI57517X0142).
Аннотация:
A bandpass
filter
of new design comprising dielectric layers with surface metal grids is developed and studied. Dielectric layers act as half-wave resonators, while metal grids act as mirrors with preset reflectivity and ensure optimum coupling between adjacent resonators and between the boundary resonators and free space. A test prototype of the third-order
filter
with a central bandpass frequency of ~12 GHz and relative bandwidth ~17% showed good agreement of theory and experiment. The proposed design can be used in making panels radio-transparent within a preset bandwidth for covering microwave antennas.
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11.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Voloshin A. S., Bulavchuk A. S., Galeev R. G.
Заглавие
: A miniature
filter
on a suspended substrate with a two-sided pattern of strip conductors
Место публикации
: Tech. Phys. Lett.: MAIK Nauka-Interperiodica / Springer, 2016. - Vol. 42, Is. 6. - P.622-625. - ISSN 10637850 (ISSN),
DOI
10.1134/S1063785016060195
Примечания
: Cited References: 15. - This study was supported in part by the Ministry of Education and Science of the Russian Federation, project no. 14.607.21.0039.
Предметные рубрики:
HAIRPIN RESONATORS
BANDPASS
FILTER
WIDE-STOPBAND
100 DB
MICROWAVE
FEATURES
DESIGN
Аннотация:
A miniature bandpass
filter
of new design with original stripline resonators on suspended substrate has been studied. The proposed filters of third to sixth order are distinguished for their high frequency-selective properties and mush smaller size in comparison to analogs. It is shown that a broad stopband extending above three-fold central bandpass frequency is determined by weak coupling of resonators at resonances of the second and third modes. A prototype sixth-order
filter
with a central frequency of 1 GHz, manufactured on a ceramic substrate with dielectric permittivity ε = 80, has contour dimensions of 36.6 × 4.8 × 0.5 mm3. Parametric synthesis of the
filter
, based on electrodynamic 3D model simulations, showed quite good agreement with the results of measurements.
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12.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Serzhantov A. M., Leksikov An. A., Bal'va Y. F., Galeev R. G.
Заглавие
: A monolithic miniature multi-conductor strip-resonator bandpass
filter
Место публикации
: Tech. Phys. Lett. - 2021. - Vol. 47, Is. 9. - P.645-648. - ISSN 10637850 (ISSN),
DOI
10.1134/S106378502107004X
Примечания
: Cited References: 10. - This study was supported by the Ministry of Science and Higher Education of the Russian Federation, complex project “Creating High-Tech Production of Earth Stations of Advanced Satellite Communication Systems for Connectivity of Remote, Northern, and Arctic Territories of the Russian Federation” carried out with the participation of the Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, agreement no. 075-11-2019-078 dated December 13, 2019
Аннотация:
A new monolithic design of a miniature bandpass
filter
for manufacture by means of multilayer printed-circuit-board technology has been developed. It is demonstrated using a fourth-order
filter
that multi-conductor strip resonators used in the design ensure both miniaturization and high selectivity of the device. The passband center frequency of the manufactured
filter
is f0 = 546 MHz, the fractional bandwidth is Δf/f0 = 25%, and the insertion loss is 0.8 dB. The
filter
has a wide high-frequency stopband, which extends up to a frequency of 10f0 at a level of –30 dB. The
filter
dimensions are 15.0 × 12.0 × 4.3 mm (0.027λ0 × 0.021λ0 × 0.007λ0, where λ0 is the wavelength in vacuum at frequency f0) and the mass is only 1.8 g. The performances of the
filter
and the accessibility of its design for surface mounting show that the device has great potential.
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13.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Serzhantov A. M., Bal'va Y. F., Leksikov An. A., Galeev R. G.
Заглавие
: A new design of a miniature
filter
on microstrip resonators with an interdigital structure of conductors
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. 5. - P.504-507. - ISSN 1063,
DOI
10.1134/S1063785015050193. - ISSN 10906533(eISSN)
Примечания
: Cited References:14. - This study was supported in part by the Ministry of Education and Science of the Russian Federation, project no. 14.607.21.0039.
Предметные рубрики:
HAIRPIN RESONATORS
FEATURES
Аннотация:
A microstrip bandpass
filter
of new design based on original resonators with an interdigital structure of conductors has been studied. The proposed filters of third to sixth order are distinguished for their high frequency-selective properties and much smaller size than analogs. It is established that a broad stop band, extending up to a sixfold central bandpass frequency, is determined by low unloaded Q of higher resonance mode and weak coupling of resonators in the pass band. It is shown for the first time that, as the spacing of interdigital stripe conductors decreases, the Q of higher resonance mode monotonically drops, while the Q value for the first operating mode remains high. A prototype fourth-order
filter
with a central frequency of 0.9 GHz manufactured on a ceramic substrate with dielectric permittivity ɛ = 80 has microstrip topology dimensions of 9.5 × 4.6 × 1 mm3. The electrodynamic 3D model simulations of the
filter
characteristics agree well with the results of measurements.
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14.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Khodenkov S. A., Leksikov An. A., Shabanov V. F.
Заглавие
: A three-mode microstrip resonator and a miniature ultra-wideband
filter
based on it
Место публикации
: Dokl. Phys.: Maik Nauka-Interperiodica Publishing, 2017. - Vol. 62, Is. 6. - P.289-293. - ISSN 10283358 (ISSN),
DOI
10.1134/S102833581706009X
Примечания
: Cited References: 14
Ключевые слова
(''Своб.индексиров.''): bandpass filters--microwave filters--resonators--
filter
structures--high selectivity--microstrip resonator--oscillation mode--parametric synthesis--passband frequencies--ultra-wideband filters--wide band
filter
--microstrip filters
Аннотация:
An original microstrip resonator design with a strip conductor split by a slot at one of its ends is investigated. It is demonstrated that at the optimal slot sizes, when the eigenfrequency of the second oscillation mode hits the center between the first and third oscillation modes, the resonator can work as a thirdorder bandpass
filter
. The structure formed from only two such resonators electromagnetically coupled by split conductor sections is a miniature six-order wideband
filter
with high selectivity. The test prototype of the
filter
with a central passband frequency of ~1.2 GHz and a passband width of ~0.75 GHz fabricated on a substrate ~(45 × 11 × 1) mm3 in size with a permittivity of 80 is characterized by minimum loss in a passband of 0.5 dB. The parametric synthesis of the
filter
structure was performed using electrodynamic analysis of the 3D model. The measured characteristics of the test prototype agree well with the calculated data.
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15.
Вид документа
: Статья из сборника (выпуск продолж. издания)
Шифр издания
:
Автор(ы)
: Belyaev B. A., Serzhantov A., Balva Y. F., Galeev R., Lemberg K., Leksikov An. A.
Заглавие
: ALD stripline resonator and bandpass filters for VHF and UHF bands
Коллективы
: IEEE MTT-S International Microwave
Filter
Workshop 2021
Место публикации
: 2021 IEEE MTT-S International Microwave
Filter
Workshop, IMFW 2021: Institute of Electrical and Electronics Engineers, 2021. - 2021 IEEE MTT-S International Microwave
Filter
Workshop, IMFW 2021 (17 - 19 November 2021, Perugia, Italy) Conference code: 175723. - P.65-68. - ,
DOI
10.1109/IMFW49589.2021.9642365
Примечания
: Cited References: 15
Аннотация:
It is shown that for an optimal substrate thickness ALD technology will be promising for IF bandpass
filter
designing. A two-conductor stripline ALD resonator with central frequency 200 MHz will have Q-factor 53 with total length 3.7 mm (0.0025λg) and the frequency separation of the first and the second oscillation modes up to 59. Two bandpass filters for VHF and UHF designed and fabricated for commercial application display good agreement between the simulation and the experiment. A 3-pole bandpass
filter
with central frequency 255 MHz and lateral size 15.8×3.2 mm2 has stopband width 13.5f0 , and a 6-pole bandpass
filter
with central frequency 1250 MHz and lateral size 4.4×5.1 mm2 has stopband width 9.4f0.
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16.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Serzhantov A. M., Leksikov An. A., Bal'va Y. F., Grushevskii E. O.
Заглавие
: An ultra-wideband stripline bandpass
filter
with a noise suppression level of more than 100 dB
Коллективы
: Ministry of Science and Higher Education of the Russian Federation [075-11-2019-078]
Место публикации
: Tech. Phys. Lett. - 2020. - Vol. 46, Is. 8. - P.787-791. - ISSN 1063-7850,
DOI
10.1134/S1063785020080179. - ISSN 1090-6533(eISSN)
Примечания
: Cited References: 9. - This work was financially supported by the Ministry of Science and Higher Education of the Russian Federation in the implementation of the integrated project "Creation of a production of earth stations of advanced satellite communications systems to ensure the coherence of hard, northern and Arctic territory of Russian Federation," implemented with the participation of the Federal Research Center "Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences|" (agreement number 075-11-2019-078 dated 13.12.2019)
Аннотация:
An ultra-wideband bandpass
filter
formed by cascading of a novel high-pass
filter
(HPF) and a low-pass
filter
(LPF) on suspended substrates with a two-sided pattern of strip conductor has been investigated. The high selectivity of the HPF is ensured by the transmission zeros near the passband, the number of which is equal to the
filter
order. A second-order HPF has been designed on a 0.5-mm-thick substrate with a permittivity of ε = 9.8 using the numerical electrodynamic analysis of a 3D model of the
filter
. The experimental HPF prototype has a cutoff frequency of fb = 0.25 GHz at a level of –3 dB and a passband that extends to 5 GHz. The ultra-wideband bandpass
filter
formed by cascading of the LPF and the designed HPF has a fractional bandwidth of Δf/f0 = 150% with a central frequency of f0 = 1 GHz. It has the broad and deep high-frequency stopband, which extends to a frequency of 7.8f0 at a suppression level of –100 dB.
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17.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Leksikov Al. A., Serzhantov A. M., Tyurnev V. V., Bal'va Y. F., Leksikov An. A.
Заглавие
: Bandpass
filter
with an ultra wide stopband designed on miniaturized coaxial resonators
Место публикации
: J. Commun. Technol. Electron.: Pleiades Publishing, 2013. - Vol. 58, No. 2. - P.110-117. -
DOI
10.1134/S1064226913020022
Аннотация:
Characteristics of a new miniaturized coaxial resonator are theoretically investigated. It is shown that the first resonant frequency of the resonator can be significantly lowered relative to the second one and the resonator dimensions can be considerably decreased as compared to those of a traditional dielectric filled quarter wavelength coaxial resonator. Based on the investigated resonator, a fourth order bandpass
filter
has been designed and fabricated. The
filter
stopband at a level of no worse than –90 dB extends to the frequency that exceeds the passband center frequency by a factor of 47. Calculated frequency responses are in good agreement with those measured on the fabricated
filter
prototypes.
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18.
Вид документа
: Статья из сборника (выпуск продолж. издания)
Шифр издания
:
Автор(ы)
: Belyaev B. A., Khodenkov S. A.
Заглавие
: 8-order
filter
based on 2-D photonic crystal with dual-mode microstrip resonators
Коллективы
: International Scientific Conference Reshetnev Readings
Место публикации
: IOP Conf. Ser.: Mater. Sci. Eng. - 2017. - Vol. 255, Is. 1. - Ст.012020. - ,
DOI
10.1088/1757-899X/255/1/012020
Примечания
: Cited References: 5. - The authors would like to acknowledge the Zhejiang Boen Company and MAPEI Company for providing gratuitously, respectively, the steel fibers and micro silica fume. The first author would also like to acknowledge the grant obtained under the scope of the Erasmus Mundus - Marhaba project. The third author wishes to acknowledge the grant SFRH/BSAB/114302/2016 provided by FCT.
Ключевые слова
(''Своб.индексиров.''): bandpass filters--crystal filters--microwave filters--photonic crystals--poles--resonators
Аннотация:
The design of 8-order band-pass
filter
based on 2-D photonic crystal is suggested. Strip conductors in all dual-mode resonators are in the form of irregular rectangular frame with a gap and are connected at certain points with the ground. At optimal placement of such resonators on a substrate attenuation pole is observed on the amplitude-frequency characteristic of the
filter
, near low and high bandwidth slope that significantly improves its frequency-selective properties. The change of gap between input and output resonators allows to control the frequency of these poles.
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19.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Serzhantov A. M., Tyurnev V. V.
Заглавие
: A miniature dual-band
filter
based on microstrip dual-mode resonators
Место публикации
: Tech. Phys. Lett.: MAIK Nauka-Interperiodica / Springer, 2012. - Vol. 38, Is. 9. - P.839-842. - ISSN 1063-7850,
DOI
10.1134/S1063785012090180
Примечания
: Cited References: 16. - This study was supported in part by the Siberian Branch of the Russian Academy of Sciences (interdisciplinary integration project no. 109) and the federal targeted program "Scientific and Pedagogical Personnel of Innovative Russia (2009-2013)."
Предметные рубрики:
PASSBAND RESPONSE
DESIGN
Аннотация:
A microstrip dual-band bandpass
filter
(DBF) with an original miniature design is described. The
filter
consists of thee microstrip dual-mode resonators, which are rendered dual-mode by splitting their regular strip conductors from one end by longitudinal slots. The formation of one passband of the DBF involves the resonances of even modes of each microstrip double-mode resonator, while the other passband is formed by the resonances of odd modes. The proposed device is simple to manufacture and allows the central frequencies and widths of each passband to be tuned within broad limits. A method of DBF tuning has been developed. Good prospects of the proposed microstrip DBF are confirmed by the high characteristics of its working prototype.
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20.
Вид документа
: Статья из журнала
Шифр издания
:
Автор(ы)
: Belyaev B. A., Tyurnev V. V., Shabanov V. F.
Заглавие
: An optical bandpass
filter
based on a three-component multilayer structure
Место публикации
: Dokl. Phys.: MAIK Nauka-Interperiodica / Springer, 2014. - Vol. 59, Is. 6. - P.245-248. - ISSN 1028-3358,
DOI
10.1134/S1028335814060019. - ISSN 1562-6903
Примечания
: Cited References: 10. - This work was supported by the Siberian Branch, Russian Academy of Sciences, Integration project no. 109.
Предметные рубрики:
PHOTONIC CRYSTAL
Аннотация:
Optical bandpass filters usually represent multi-layer dielectric structures in which the layers with high and low refractive indices alternate. In the case when the mirror layers have a thickness multiple to the quarter wavelength, their reflectance is the largest. In this case, they do not disturb the resonant frequencies of resonators, while the stopbands have an identical depth on both sides of the passband. The optical filters, the multilayer mirrors in which contain only the quarter wavelength layers and are fabricated from two materials, have a substantial disadvantage consisting of the high optical passband ripple. It is related to the impossibility of a smooth fine tuning of the reflectance of such mirrors both between resonators and on the input and output of the
filter
. The prototype
filter
contains resonators in the form of half wave-length dielectric layers with a low refractive index, each of which is separated from the next resonator or from free space on the input and output of the device by a multilayer dielectric mirror consisting of quarter wavelength layers.
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