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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pilipchuk A. S., Pilipchuk A. A., Sadreev A. F.
Заглавие : Multi-channel bound states in the continuum in coaxial cylindrical waveguide
Коллективы : Russian Foundation for Basic Research (RFBR)Russian Foundation for Basic Research (RFBR) [18-32-00234]
Место публикации : Phys. Scr. - 2019. - Vol. 94, Is. 11. - Ст.115004. - ISSN 0031-8949, DOI 10.1088/1402-4896/ab1e9b. - ISSN 1402-4896(eISSN)
Примечания : Cited References: 22. - The reported study was funded by Russian Foundation for Basic Research (RFBR) according to the research project 18-32-00234.
Предметные рубрики: TRAPPED MODES
ACOUSTIC RESONANCES
PARALLEL PLATES
Аннотация: Bound states in the continuum (BICs) or embedded trapped modes are widely studied in different physical systems. The studies are restricted to a single open scattering channel. In the present paper we consider BICs embedded into several continua in a cylindrical resonator opened by two coaxially attached cylindrical waveguides with different radii. We demonstrate that engineering the BICs requires a degeneracy of three eigenmodeds of the closed resonator. That is achieved by variation of both the length and the radius of the resonator.
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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 : Miniaturized suspended-substrate two-conductors resonator and a filter on its base
Место публикации : Prog. Electromagn. Res. M. - 2019. - Vol. 84. - P.127-135. - ISSN 19378726 (ISSN), DOI 10.2528/PIERM19060604
Примечания : Cited References: 14. - The work is supported by the Ministry of science and highest education of the Russian Federation (contract #03.G25.31.0279).
Аннотация: The paper is devoted to an investigation of two-conductor suspended-substrate resonators. For the purpose of miniaturization conductors of a resonator are folded. Four types of the resonator differing in conductors’ configurations were considered. Their Q0-factors and resonant frequencies were studied. Based on results of the study two types of the resonator appeared unsuitable for an application in compact filters. Two other types were investigated in concern of their interaction: dependencies of coupling coefficients versus space between resonators and versus distance from substrate’s surfaces, and package’s covers were obtained. Based on the dependences a type of the resonator suitable for designing compact BPF was chosen. A four-pole BPF was simulated and fabricated. Good agreement between simulated and experimental results is observed. The main filter’s characteristics are the next: substrate has ε = 80, thickness 0.5 mm, lateral sizes 0.13λg × 0.09λg (18.7mm× 13.2 mm). The central frequency is 305 MHz; bandwidth is 39 MHz; passband minimum insertion loss is 2.0 dB; passband return loss is less −14.6dB; −40 dB stopband width is 480 MHz.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Podshivalov I. V., Savishnikov M. O., Leksikov An. A., Dmitriev D. D., Kartsan I. N.
Заглавие : Multi-mode resonator for ultra-wide bandpass filter with good stopband performance
Коллективы : International Workshop on Advanced Technologies in Material Science, Mechanical and Automation Engineering - MIP: Engineering-2019
Место публикации : IOP Conf. Ser.: Mater. Sci. Eng. - 2019. - Vol. 537: International Workshop on Advanced Technologies in Material Science, Mechanical and Automation Engineering - MIP: Engineering-2019 (4 April 2019 through 6 April 2019) Conference code: 149243, Is. 5. - Ст.052025. - , DOI 10.1088/1757-899X/537/5/052025
Примечания : Cited References: 10. - This work was supported by the Ministry of Education and Science of the Russian Federation in the framework of the Federal target program “Research and development of priority directions of development of the scientific-technological complex of Russia for 2014-2020” (agreement № 14.575.21.0142, unique ID project RFMEFI57517X0142).
Предметные рубрики: Information Reliability and Data Protection in Automation Systems
Аннотация: A multimode resonator is proposed, containing five resonant modes that are incorporated in the passband forming. The structure is based on a dielectric substrate suspended in a metallic case that allows solving problem of electromagnetic compatibility. Due to features of the resonator's structure, several higher modes do not excite that significantly improve the performance of the filter's stopband. The resonator advantages are proved on the ultra-wide bandpass filter (101%) with small overall size (0.11λ 0×0.06λ 0×0.03λ 0) and good stopband performance (first spurious band locates at 8 GHz, suppression is 80 dB).
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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 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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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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Afonin A. O., Ugryumov A. V., Govorun I. V., Solovev P. N., Leksikov An. A.
Заглавие : Microstrip resonator for nonlinearity investigation of thin magnetic films and magnetic frequency doubler
Место публикации : Rev. Sci. Instrum. - 2020. - Vol. 91, Is. 11. - Ст.114705. - ISSN 00346748 (ISSN), DOI 10.1063/5.0009045
Примечания : Cited References: 40. - This work was supported by the Russian Science Foundation under Grant No. 19-72-10047
Аннотация: A structure that consists of a λ/4 stepped-impedance microstrip resonator is proposed as an instrument for the investigation of nonlinear effects in thin magnetic films and also can be used as a microwave frequency doubler. A conversion efficiency of 0.65% is observed at a one-layer 100 nm Ni80Fe20 thin film at an input signal level of 4.6 W for a 1 GHz probe signal. The maximum measured conversion efficiency (1% at 1 GHz) was achieved for the 9-layer Ni80Fe20 film where 150 nm magnetic layers were separated by SiO2 layers.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pilipchuk A. S., Pilipchuk A. A., Sadreev A. F.
Заглавие : Bound states in the continuum in open spherical resonator
Место публикации : Phys. Scr. - 2020. - Vol. 95, Is. 8. - Ст.085002. - ISSN 00318949 (ISSN), DOI 10.1088/1402-4896/ab99fb
Примечания : Cited References: 33
Аннотация: We consider the bound states in the continuum (BICs) or embedded trapped modes in an open spherical acoustic resonator. The eigenfrequencies of closed resonator are 2l+1-fold degenerated, where l is the orbital index. An attachment of two cylindrical waveguides lifts this degeneracy and transforms the eigenfrequencies into resonances whose real parts depend on the position of the waveguides. When the waveguides are angled by θ ≠ π, variation over that angle gives rise to avoided crossings of resonant modes with different l to result in the Friedrich-Wintgen BICs. For θ = π there might be only the symmetry protected BICs. When three waveguides are connected to the spherical resonator the Friedrich-Wintgen BICs occur due to the avoided crossings of resonant modes with the same l but different azimuthal indices -l ≤ m ≤ l.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Serzhantov A. M., Leksikov A. A., Bal'va Y. F., Leksikov An. A.
Заглавие : Quasi-lumped multimode stripline resonator and filter with good stopband performance
Место публикации : Microwave Opt. Technol. Lett. - 2020. - Vol. 62, Is. 3. - P.1183-1187. - ISSN 08952477 (ISSN), DOI 10.1002/mop.32173
Примечания : Cited References: 10. - The work was supported by the Ministry of Education and Science of the Russian Federation (No. 03.G25.31.0279).
Аннотация: A novel multimode resonator is proposed, containing five resonant modes that are incorporated in the passband forming. The structure is based on a dielectric substrate suspended in a metallic case that allows solving the problem of electromagnetic compatibility. Due to features of the resonator's structure, several higher modes do not excite that significantly improves the performance of the filter's stopband. The resonator advantages are proved on the bandpass filter (3.1…10.6 GHz) with a small overall size (0.19λ0 × 0.11λ0 × 0.11λ0) and a good stopband performance (first spurious band locates at 29 GHz and suppression is 70 dB).
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10.

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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11.

Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Belyaev B. A., Lemberg K. V., Serzhantov A. M.
Заглавие : An X-band magnetically tunable bandpass filter based on novel waveguide cavity resonator
Коллективы : Asia-Pacific Microwave Conference
Место публикации : Asia-Pacific Microwave Conference Proceedings, APMC 2016: Institute of Electrical and Electronics Engineers Inc., 2017. - , DOI 10.1109/APMC.2016.7931355
Примечания : Cited References: 12
Ключевые слова (''Своб.индексиров.''): bandpass filters--cavity resonators--waveguides--operating modes--relative bandwidth--tunable band-pass filters--tunable frequency--tunable wave-guides--two-pole filters--unloaded quality factors--waveguide cavity resonators--waveguide filters
Аннотация: This paper presents a ferrite tunable waveguide filter showing high Qu and high tunability in X-band. A new type of waveguide cavity resonator with an H102 operating mode was proposed for the creation of a low-loss, two-pole filter. The filter results in an insertion loss of 3.6-4.1 dB over the tuning range 8.74-9.63 GHz with a relative bandwidth of 0.92-0.79% and biasing magnetic field 0-600 Oe. This design demonstrates an unloaded quality factor of 380-396 over the tunable frequency range. © 2016 IEEE.
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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., Leksikov Al. A.
Заглавие : Multilayered multiconductor stripline resonator and its application to bandpass filter with wide stopband
Место публикации : Microwave Opt. Technol. Lett.: Wiley, 2017. - Vol. 59, Is. 9. - P.2212-2216. - ISSN 08952477 (ISSN), DOI 10.1002/mop.30706
Примечания : Cited References: 12
Ключевые слова (''Своб.индексиров.''): bandpass filter--multi-conductor resonator--stripline resonator--wide stopband
Аннотация: A multilayered, multi-conductor stripline resonator is proposed. It is shown that increase in the number of conductors leads to increase the unloaded Q-factor and decrease the resonant frequency, with increasing the effects for thinner dielectric interlayer. Application of the resonator to the bandpass filter enables designing bandpass filters with very wide and deep stopbands. To prove this, a 4-pole bandpass filter, having central frequency 360 MHz and an overall size of 15.5 × 31.75 × 8.45 mm3, was designed and fabricated.
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13.

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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14.

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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15.

Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Belyaev B. A., Khodenkov S. A.
Заглавие : The investigation of filters with wide stop band, based on electromagnetic crystals of microstrip resonators 2D disposition
Коллективы : International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering
Место публикации : 13th Int. Sci.-Technical Conf. on Actual Problems of Electronic Instrum. Engin. (APEIE): Proceedings: IEEE, 2016. - Vol. 2. - P.146-152. - , DOI 10.1109/APEIE.2016.7806434
Примечания : Cited References: 4
Ключевые слова (''Своб.индексиров.''): electromagnetic crystal--microstrip filter--bandpass filters--crystal filters--electronics industry--microwave devices--microwave filters--resonators--electromagnetic crystals--high frequency hf--microstrip band-pass filter--microstrip resonator--strip conductors--wide stop band--microstrip filters
Аннотация: Microstrip bandpass filters to the 6th order, based on 2D electromagnetic crystals were studied. Their appliance in structures of irregular resonators with originally convolved and earthed on its base with strip conductors enables the implementation of filters building multiple versions, including of high frequency-selective properties. The good conformance of the calculated characteristics in comparison with the received characteristics on experimentally made model of microwave device is shown. © 2016 IEEE.
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16.

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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17.

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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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gunyakov V. A., Timofeev I. V., Krakhalev M. N., Zyryanov V. Ya.
Заглавие : Polarization exchange of optical eigenmode pair in twisted-nematic Fabry-Perot resonator
Коллективы : Siberian Branch of the Russian Academy of Sciences under Complex Program II.2P [0356-2015-0410, 0356-2015-0411]; RFBR [17-42-240464]
Место публикации : Phys. Rev. E: American Physical Society, 2017. - Vol. 96, Is. 2. - Ст.022711. - ISSN 2470-0045, DOI 10.1103/PhysRevE.96.022711. - ISSN 2470-0053(eISSN)
Примечания : Cited References:30. - This work was partially supported by the Siberian Branch of the Russian Academy of Sciences under Complex Program II.2P (Projects No. 0356-2015-0410 and No. 0356-2015-0411). I.V.T. acknowledges the support by RFBR 17-42-240464.
Предметные рубрики: LIQUID-CRYSTAL
REFRACTIVE-INDEX
FORMULATION
FILTER
CELL
Аннотация: The polarization exchange effect in a twisted-nematic Fabry-Perot resonator is experimentally confirmed in the regimes of both uniform and electric-field-deformed twisted structures. The polarization of output light in the transmission peaks is shown to be linear rather than elliptical. The polarization deflection from the nematic director grows from 0 degrees to 90 degrees. angle and exchanges the longitudinal and transverse directions. Untwisting of a nematic by a voltage leads to the rotation of the polarization plane of light passing through the resonator. The polarization exchange effect allows using the investigated resonator as a spectral-selective linear polarizer with the voltage-controlled rotation of the polarization plane.
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19.

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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20.

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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