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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Belyaev B. A., Khodenkov S., Dmitriev D.
Заглавие : Investigation of microstrip band-pass filters based on 2D electromagnetic crystal
Коллективы : Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology
Место публикации : Proceedings - 2018 Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology, USBEREIT 2018: Institute of Electrical and Electronics Engineers Inc., 2018. - P.245-248. - , DOI 10.1109/USBEREIT.2018.8384595
Примечания : Cited References: 14. - This study was supported by the Ministry of Education and Science of the Russian Federation, agreement no. 14.575.21.0142.
Ключевые слова (''Своб.индексиров.''): microstrip filter--2d electromagnetic crystal--strip conductor--amplitude-frequency characteristics--irregular resonator
Аннотация: Electrodynamic numerical analysis of 3D models was used in order to study microstrip filters of 4-th and 6-th order. When constructing 2D microwave structures, irregular resonators with Π-shaped slit in a grounded strip conductor were used. The band-pass filters tuned by manual parametric synthesis have high frequency-selective properties, including extended high frequency stopband.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Boev N. M., Izotov A. V., Solovyev P. N., Tyurnev V. V.
Заглавие : Study of the weak field sensor on the resonant microstrip structure with a thin ferromagnetic film
Место публикации : Russ. Phys. J. - 2018. - Vol. 61, Is. 8. - P.1367-1375. - ISSN 10648887 (ISSN), DOI 10.1007/s11182-018-1544-x
Примечания : Cited References: 19. - This research was performed with support of the Russian Ministry of Education and Science, project No. RFMEFI60417X0179.
Ключевые слова (''Своб.индексиров.''): microstrip resonator--thin magnetic film--frequency response--sensor of weak magnetic fields--quality factor--scattering matrix--magnetometer
Аннотация: The paper examines the characteristics of the miniature sensor of weak magnetic fields on the resonant microstrip structure with a thin ferromagnetic film. The authors calculated the frequency response of irregular microstrip resonator containing anisotropic magnetic film in quasi-static approximation. The resonator is connected to transmission lines via coupling capacities. The authors determined the optimal directional angles of the constant magnetic displacement field ensuring maximum sensitivity of the sensor. They examined the impact of angular and amplitude dispersion of uniaxial magnetic anisotropy of thin film upon the sensor characteristics. The regularities determined in this research qualitatively agree with the experimental results.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Khodenkov S. A., Belyaev B. A.
Заглавие : Microstrip filters based on 2D electromagnetic crystal
Коллективы : International Conference PhysicA.SPb/2016
Место публикации : Journal of Physics: Conference Series. - 2017. - Vol. 929. - Ст.012026. - DOI 10.1088/1742-6596/929/1/012026
Примечания : Cited References: 9. - This study was supported by the Ministry of Education and Science of the Russian Federation, grant МК-9119.2016.8 of the President of the Russian Federation for State Support of Young Russian Scientists.
Аннотация: Construction of microstrip bandpass filters is suggested on the basis of 2D electromagnetic crystal consisting of P horizontal and K vertical rows of resonators. Adjacent vertical rows of resonators are connected by additional m K-1 resonators arranged above and below the outside 2D crystal. Parametric synthesis of six bandpass filters based on crystals with the dimension of 1×2, 2×2, 2×3, 3×1, 3×2 and 3×3 was conducted with use of electrodynamic numerical analysis of 3D models in studied constructions. While calculating substrates with relative permittivity ε=80, h=1 mm thick were used, in this connection, center frequency of bandwidth was registered as follows - f 0≈1.0 GHz, as well as their relative bandwidth Δf/f 0≈20%. High frequency-selective properties of the filters are connected not only with the increase of their N order, but also with the presence of amplitude-frequency characteristics of power attenuation poles located near the bandwidth.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Khodenkov S. A., Shokirov V. A.
Заглавие : The investigation of microstrip filters with wide stopband
Коллективы : International Siberian Conference on Control and Communications
Место публикации : International Siberian Conference on Control and Communications, SIBCON 2017: Proceedings: IEEE, 2017. - Ст.7998525. - , DOI 10.1109/SIBCON.2017.7998525
Примечания : Cited References: 8. - This study was supported by the Ministry of Education and Science of the Russian Federation, grant MK-9119.2016.8 of the President of the Russian Federation for State Support of Young Russian Scientists.
Ключевые слова (''Своб.индексиров.''): bandpass filter--meander--stopband
Аннотация: The constructions of bandpass filters with irregular quarter-wave resonators are suggested. Due to the high jump of the wave resistance in line segments the microstrip structures have extended high-frequency stopbands. Different alternatives for the location of resonators with a conductor in the form of meander on dielectric substrate were studied. In this regard the use of codirectional resonators helps to improve frequency-selective properties of microwave filters. © 2017 IEEE.
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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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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Govorun I. V., Leksikov A. A.
Заглавие : New method for observation ferromagnetic resonance spectra
Коллективы : International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering, Institute of Electrical and Electronics Engineers
Место публикации : 14th International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering, APEIE 2018: Proceedings. - 2018. - P.41-44. - ISBN 9781538670545, DOI 10.1109/APEIE.2018.8545359
Примечания : Cited References: 8
Предметные рубрики: Magnetomechanical effects
Magnetic films
Magnetic fields
Ключевые слова (''Своб.индексиров.''): microstrip resonator--coupling coefficient--ferromagnetic resonance--damping pole
Аннотация: A new method for observation of ferromagnetic resonance spectra is demonstrated. Its operation based on the registering a damping pole in the frequency response of two-resonator microstrip structure containing a sample under investigation. A damping pole arises due to mutual compensation of capacitive (electric) and inductive (magnetic) interactions between the resonators and this compensation get broken in the ferromagnetic resonance.
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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 : Microstrip diplexer with Π-shaped matching circuit
Место публикации : Prog. Electromagn. Res. Lett. - 2020. - Vol. 88. - P.59-65. - ISSN 19376480 (ISSN), DOI 10.2528/PIERL19083005
Примечания : Cited References: 15. - The work is supported by the Ministry of science and highest education of the Russian Federation (contract #03.G25.31.0279).
Аннотация: We propose a new method to match diplexer channels with a common port in which a Π-shaped strip conductor is used as a matching circuit. The applicability of the method is illustrated by simulating and fabricating a microstrip diplexer for GPS/GLONASS applications. The central frequencies of the channels are 1.234 GHz and 1.597 GHz, and their fractional bandwidths are 6.8% and 7.3%, respectively; minimum insertion losses are 1.05 dB and 1.08 dB. The main advantage of the diplexer is its compact size: 16.8 mm × 9.0 mm × 6.4 mm in housing. Using 1D models and a quasi-TEM approach, the frequency-dependent coupling coefficients between the matching circuit and input resonators of the channels are calculated, and the influence of the matching circuit’s geometrical parameters on its coupling with diplexer channels is studied. © 2020, Electromagnetics Academy. All rights reserved.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Belyaev B. A., Khodenkov S. A., Shepeta N. A., Chyurikova T. I., Malyshev D. O.
Заглавие : Investigation of microstrip ultra-wideband bandpass filters
Коллективы : International Scientific Conference on Electronic Devices and Control Systems
Место публикации : J. Phys. Conf. Ser. - 2020. - Vol. 1488, Is. 1. - Ст.012012. - DOI 10.1088/1742-6596/1488/1/012012
Примечания : Cited References: 16. - This study was supported by the Ministry of Education and Science of the Russian Federation, State assignment
Аннотация: Ultra-wideband microwave filters with high frequency-selective properties have been developed by means of electrodynamic numerical analysis of 3D models. Microstrip structures, which are studied theoretically and experimentally, use one multimode resonator and a pair of single-mode resonators. There is fairly good agreement between the calculated data and the data taken on the experimental sample. The relative bandwidth of the manufactured microstrip filter is 60%.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Belyaev B. A., Khodenkov S., Nazarov G., Shepeta N., Panin D.
Заглавие : Investigation of Microstrip High-Pass Filters Based on Multimode Resonator
Коллективы : Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology
Место публикации : Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology, USBEREIT 2019: Proceedings: IEEE, 2019. - P.383-386. - , DOI 10.1109/USBEREIT.2019.8736572
Примечания : Cited References: 14
Аннотация: Microstrip high-pass filters were investigated by means of electrodynamic numerical analysis of 3D models. In the microwave constructions a new multimode resonator with a strip conductor of 'E' shape was used, the central segment of which is grounded at its base. Synthesized filters with fixed cutoff frequency fc=3 GHz have high frequency-selective properties. © 2019 IEEE.
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10.

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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11.

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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12.

Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Govorun I. V., Leksikov Al. A.
Заглавие : HTS microwave power limiter based on microstrip quarter-wave resonators
Коллективы : International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices
Место публикации : International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices, EDM: [29 June 2017 - 03 July 2017, Erlagol, Russia]: IEEE Computer Society, 2017. - P.80-82. - , DOI 10.1109/EDM.2017.7981712
Примечания : Cited References: 7. - The work was supported by the Ministry of Education and Science of the Russian Federation, grant Cn-3036.2016.3.of the President of the Russian Federation for State Support of Young Russian Scientists.
Ключевые слова (''Своб.индексиров.''): microstrip resonator--hts--power limiter--interaction of resonators
Аннотация: A microwave power limiter based on three-pole microstrip filter is designed, fabricated and tested. In the device outer resonators are coupled through an inner resonator containing high-temperature superconducting film. Prototype of the device with central frequency 8.3 GHz and relative bandwidth 7% has insertion loss 3 dB in the open state and signal suppression not less 35 dB in the limitation state.
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13.

Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Ivanin V. V., Khodenkov S. A., Boev N. M.
Заглавие : The investigation of microstrip diplexer based on 2D electromagnetic crystal
Коллективы : International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering , Ministry of Education and Science of the Russian Federation [MK-9119.2016.8]; Russian Federation for State Support of Young Russian Scientists
Место публикации : 13th Int. Sci.-Technical Conf. on Actual Problems of Electronic Instrum. Engin. (APEIE): Conference proceedings: IEEE, 2017. - Vol. 1. - P.476-481. - , DOI 10.1109/APEIE.2016.7802209
Примечания : Cited References:6. - This study was supported by the Ministry of Education and Science of the Russian Federation, grant MK-9119.2016.8 of the President of the Russian Federation for State Support of Young Russian Scientists.
Ключевые слова (''Своб.индексиров.''): microstrip diplexer--bandwidth
Аннотация: The structure of microwave diplexers based on two-dimensional (2D) electromagnetic crystals of various size has been theoretically and experimentally investigated. In the proposed devices with high-frequency selective properties two rows of microstrip quarter-wave resonators electromagnetically connected with each other and with the input of the strip conductor are used. This allows splitting the signal into two channels.
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Serzhantov A., Leksikov Al. A., Bal'va Y. F., Leksikov An. A.
Заглавие : High-quality compact interdigital microstrip resonator and its application to bandpass filter
Место публикации : Prog. Electromagn. Res. C: Proceedings. - 2017. - Vol. 72. - P.91-103. - ISSN 19378718 (ISSN)
Примечания : Cited References: 27
Ключевые слова (''Своб.индексиров.''): alumina--bandpass filters--bandwidth--microwave filters--q factor measurement--resonators--alumina substrates--central frequency--fractional bandwidths--interdigital structures--its applications--microstrip resonator--number of fingers--unloaded quality factors--microstrip filters
Аннотация: A compact microstrip resonator based on the interdigital structure is proposed. The resonator has several times higher unloaded quality factor compared to similar resonators presented previously and can even reach the Q-factor of a regular λ/4 resonator. The size of the resonator can be significantly reduced with a substantial increase in quality factor by incrementing the number of fingers in the interdigital structure. In addition, for each gap between the fingers, there exist an optimal number of fingers that correspond to the maximum Q-factor. An extension of the upper stopband for a bandpass filter designed using the resonator can be achieved by the interconnection of the fingers in each of the comb structures. The simulation results are proven by fabricated resonators and a fourpole bandpass filter. For the central frequency of 2000 MHz and 16.2% fractional bandwidth, the lateral size of the filter is only 11.5mm × 3.8 mm for alumina substrate (eps = 9.8). The filter has an upper stopband up to 5.8f0 at the level −40 dB.
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15.

Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Khodenkov S. A., Belyaev B. A., Ivanin V. V.
Заглавие : Investigation of irregular microstrip resonators and wideband filters based on them
Коллективы : International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering , Ministry of Education and Science of the Russian Federation [MK-9119.2016.8]; Russian Federation for State Support of Young Russian Scientists
Серия:
Место публикации : 13th Int. Sci.-Technical Conf. on Actual Problems of Electronic Instrum. Engin. (APEIE): Conference Proceedings: IEEE, 2017. - Vol. 1. - P.482-486. - ( )
Примечания : Cited References:9. - This study was supported by the Ministry of Education and Science of the Russian Federation, grant MK-9119.2016.8 of the President of the Russian Federation for State Support of Young Russian Scientists.
Ключевые слова (''Своб.индексиров.''): bandpass filter--multimode resonator
Аннотация: New multimode irregular microstrip resonators and designs of wideband bandpass filters based on them are being theoretically and experimentally investigated. A central multimode resonator electromagnetically connected with single-mode or two-mode resonators at the input and output of a structure are used in the developed filters. It is the first experience giving the possibility of combining inherent frequencies up to six lowest modes of oscillations, which are involved in the formation of the bandpass of the multimode resonator. Strong interaction of oscillations modes leads to its significant extension.
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16.

Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Belyaev B. A., Khodenkov S. A., Balva Y. F., Aplesnin S. S., Bandurina O. N.
Заглавие : The microstrip filters based on electromagnetic crystal of resonators 2d disposition
Коллективы : International Scientific and Research Conference on Topical Issues
Место публикации : IOP Conf. Ser.: Mater. Sci. Eng. - 2016. - Vol. 155, Is. 1. - Ст.012004. - , DOI 10.1088/1757-899X/155/1/012004
Примечания : Cited References:3
Аннотация: Filters of the 6th order, based on 2D electromagnetic crystals were developed. Application in structures of resonators with convolved and earthed on its base with strip conductors enables the implementation of filters having high frequency-selective properties and demanded in the aerospace equipment.
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17.

Вид документа : Статья из сборника (выпуск монографической серии)
Шифр издания :
Автор(ы) : Govorun I. V., Leksikov A. A., Serzhantov A. M.
Заглавие : Features of the coupling coefficients of microstrip irregular quarter-wavelength resonators
Коллективы : International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering
Место публикации : 13th International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering (APEIE): IEEE, 2017. - Vol. 4. - P.29-32. - (International Conference on Actual Problems of Electronic Instrument)
Примечания : Cited References:9
Предметные рубрики: HAIRPIN RESONATORS
Ключевые слова (''Своб.индексиров.''): microstrip resonator--coupling coefficient--inductive and capacitive--interactions--damping pole
Аннотация: In the present work on the base of modified energy approach a behavior of the frequency-dependent coupling coefficient of pair microstrip stepped-impedance quarter-wavelength resonators was investigated. It is revealed that at a certain gap between the resonators the total coefficient of coupling becomes zero due to mutual compensation of coefficients describing inductive and capacitive interactions between the resonators.
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18.

Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Belyaev B. A., Khodenkov S. A., Korolev E. V.
Заглавие : Investigation of natural frequencies of the multimode microstrip resonator and filter on its basis
Коллективы : International Conference on Actual Problems of Electron Devices Engineering
Место публикации : Int. Conf. on Actual Problems of Electron Devices Engin., APEDE 2016: Conference Proceedings. - 2017. - Vol. 1. - Ст.7878887. - P.235-241. - , DOI 10.1109/APEDE.2016.7878887
Примечания : Cited References: 2
Аннотация: The natural frequencies of the multimode microstrip resonator «hairpin with stub» were investigated from its constructive data. Application in the resonator of the stub allows not only to observe on amplitude-frequency characteristic the poles of power attenuation, and also to considerably reduce frequencies of all its even modes of oscillations. At the same time frequencies of odd modes don't change. It allows to use in addition two resonances participating in formation of expanded bandwidth of the filter based on such resonator. High frequency-selective properties of such design are caused not only the poles of power attenuation located as near low-frequency, and high-frequency slopes of bandwidth, but also wide stop band. © 2016 IEEE.
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19.

Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Khodenkov S. A., Belyaev B. A., Ivanin V. V.
Заглавие : Investigation of irregular microstrip resonators and wideband filters based on them
Коллективы : International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering
Место публикации : 13th International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering, APEIE 2016: Proceedings: Institute of Electrical and Electronics Engineers Inc., 2016. - Vol. 1. - P.482-486. - , DOI 10.1109/APEIE.2016.7802210
Примечания : Cited References: 9. - Ministry of Education and Science of the Russian Federation, grant #K-9119.2016.8
Ключевые слова (''Своб.индексиров.''): bandpass filter--multimode resonator--bandpass filters--electronics industry--microwave filters--resonators--inherent frequencies--input and outputs--irregular microstrip resonators--mode resonators--multimode resonators--strong interaction--wide band filter--wideband bandpass filter--microstrip filters
Аннотация: New multimode irregular microstrip resonators and designs of wideband bandpass filters based on them are being theoretically and experimentally investigated. A central multimode resonator electromagnetically connected with single-mode or two-mode resonators at the input and output of a structure are used in the developed filters. It is the first experience giving the possibility of combining inherent frequencies up to six lowest modes of oscillations, which are involved in the formation of the bandpass of the multimode resonator. Strong interaction of oscillations modes leads to its significant extension. © 2016 IEEE.
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20.

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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