2024-03-29T08:36:40Z
http://radap.kpi.ua/radiotechnique/oai
oai:ojs.radap.kpi.ua:article/4
2024-03-29T08:36:40Z
radiotechnique:electrodynamics
v2
http://radap.kpi.ua/radiotechnique/article/view/4
2024-03-29T08:36:40Z
N
No. 49 (2012); 13-17
Resonances of vacancies the multilayer lattices of the cylindrical dielectric resonators
Trubin, A. A.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
2012-04-27
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
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Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
url:http://radap.kpi.ua/radiotechnique/article/view/4
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Multilayer lattices of dielectric resonators in infrared wavelength range has been studied. The screen influence on frequency parameters the different vacancies of DRs realized in the center of structure was considered. Q-factor increase showed for the resonances localized in region of vacancies at the expense of additional field screening by another DR flat lattices. The field amplitudes of partial DR distribution were calculated. The condition of the spectrum depression nearby localize oscillations has been determined.
oai:ojs.radap.kpi.ua:article/24
2024-03-29T08:36:40Z
radiotechnique:electrodynamics
v2
http://radap.kpi.ua/radiotechnique/article/view/24
2024-03-29T08:36:40Z
N
No. 45 (2011); 9-15
Electrodynamical analysis of frequency-selective surfaces
Naidenko, V. I.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Shumakov, D. S.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
url:http://radap.kpi.ua/radiotechnique/article/view/24
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The effective and universal algorithm of diffraction characteristics calculation of the field scattered by 2D rectangular element frequency-selective surface. Galerkin method was used to solve equations, received from boundary conditions. The system of linear algebraic equations of finite order was solved. For the field’s description of given 2D periodic structure in the terms of space harmonics Floquet theorem was used. Results obtained in the work match data from foreign sources. Computer program based on the algorithm might be used for reflection and transmission characteristics calculation of the structures with unit cell different sizes.
oai:ojs.radap.kpi.ua:article/25
2024-03-29T08:36:40Z
radiotechnique:electrodynamics
v2
http://radap.kpi.ua/radiotechnique/article/view/25
2024-03-29T08:36:40Z
N
No. 47 (2011); 13-18
Application of the method of geometrical optics to determine the effect of frequency dispersion on the propagation of magnetostatic waves in the delay line
Kudinov, E. V.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
2012-10-11
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
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Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
url:http://radap.kpi.ua/radiotechnique/article/view/25
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Applying the method of geometrical optics, it is shown that for a dispersive delay line, provided that the parameters of pulse linear FM and dispersion parameters of MSW coordinated so that the RF pulse is compressed, there is a point where the characteristics intersect, and this point is called a spatial-temporal focus. That is, there exists an optimal ratio between the parameters of linear FM, the frequency dispersion in the delay line, its length and, consequently, the delay time at which the RF pulse compression maximum. In certain limits to maintain this optimum ratio is possible by regulating the intensity of a constant magnetic field.
oai:ojs.radap.kpi.ua:article/52
2024-03-29T08:36:40Z
radiotechnique:electrodynamics
v2
http://radap.kpi.ua/radiotechnique/article/view/52
2024-03-29T08:36:40Z
N
No. 47 (2011); 19-29
The resonances of dielectric sphere shielded by one dimensional photonic crystal
Trubin, A. A.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
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Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
url:http://radap.kpi.ua/radiotechnique/article/view/52
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The problem of quality factor rising for low permittivity dielectric resonator (DR), most significant in millimeter and infrared wavelength ranges, has been solved. Maxwell equations for multi-layer dielectric structure realizing spherical DR screening by 1-D photonic crystal has been solved. Received data are allowing to assert that lattice forming on the DR surface can adduce to significant increasing of it Q-factor for resonances with large values of radial indexes. It's noting a possibility significant frequency spectrum depression in comparison to other resonance types.
oai:ojs.radap.kpi.ua:article/76
2024-03-29T08:36:40Z
radiotechnique:electrodynamics
v2
http://radap.kpi.ua/radiotechnique/article/view/76
2024-03-29T08:36:40Z
N
No. 45 (2011); 16-25
The methods of the square quad-ridged waveguides eigen functions and eigen values computation with the field behavior near-by a rib accounting
Pavlyuk, V. V.; Zhytomyr Military Institute of the National
aviation University, Zhytomyr
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
url:http://radap.kpi.ua/radiotechnique/article/view/76
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A methods of the regular square quad-ridged waveguides eigen functions eigen values computation is developed. By means of the partial areas method the analytical solutions of the wave equalization are received for a Z-shape area transversal the cut of square quad-ridged waveguides. The influence of electromagnetic field behavior near-by a rib on final results are accounted. The received solutions are to be convenient for consequent application at the decision of direct and reverse electrodynamic tasks of quad-ridged waveguides and horn antennas calculation.
oai:ojs.radap.kpi.ua:article/77
2024-03-29T08:36:40Z
radiotechnique:electrodynamics
v2
http://radap.kpi.ua/radiotechnique/article/view/77
2024-03-29T08:36:40Z
N
No. 45 (2011); 26-32
Evaluation of electromagnetic compatibility of highfrequency induction systems in a local facility
Rozvadovsky, A. F.; State enterprise “Testing center Omega”, Sevastopol
Shalileh, S.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
url:http://radap.kpi.ua/radiotechnique/article/view/77
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The article shows one approach to assess the electromagnetic environment in a local facility that is running induction system for transferring high frequency signals. A distinctive feature of these systems is to use a reactive component of integrated energy flux of the electromagnetic field. To evaluate them in the aspects of electromagnetic compatibility (EMC) in the local object defined distribution of reactive power across the frequency spectrum. Current along the electric and magnetic radiators present as of complex Fourier series expressions are obtained for the components of electric and magnetic fields. For assessment the EMC induction systems transmit signals in a local facility proposed criterion of the difference actual and limiting factors of reactive power. It is shown that due to short radius of action (no more than 0,5 ... 1 m) and low power in data systems,electromagnetic compatibility with other devices inside a local object is provided.
oai:ojs.radap.kpi.ua:article/97
2024-03-29T08:36:40Z
radiotechnique:electrodynamics
v2
http://radap.kpi.ua/radiotechnique/article/view/97
2024-03-29T08:36:40Z
N
No. 48 (2012); 13-22
Solution of scattering problem on dielectric wedgeplaced between metal plates by boundary element method
Ruda, N. A.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Prokopenko, Yu. V.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Poplavko, Yu. M.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
url:http://radap.kpi.ua/radiotechnique/article/view/97
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Solution ofscattering problem on dielectric wedge placed between metal plates by boundary element method is discussed.The problem is reduced to set of Fredholm integralequations of the first kind.The set was solved by Galerkinmethod. Due to low dimension of resulting system of linear algebraic equations the method demonstrates high efficiencyand faster computation than finite elementand finite difference in time domainmethods.Proposed method can be applied for rigorous simulation of micromechanically controlled microwave devices.
oai:ojs.radap.kpi.ua:article/164
2024-03-29T08:36:40Z
radiotechnique:electrodynamics
v2
http://radap.kpi.ua/radiotechnique/article/view/164
2024-03-29T08:36:40Z
N
No. 46 (2011); 22-34
Determination of homogeneity zone of controlled quasistatic electric field in the area with the ring multiply boundary
Zinkovskiy, Yu. F.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Sydoruk, Yu. K.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
url:http://radap.kpi.ua/radiotechnique/article/view/164
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The analysis and calculation of zone homogeneity of controlled (rotated) quasi-static electric field in the interior of the open area with circular multiply connected boundary and of equal length, depending on connectivity order of the boundaries, of the distribution of potential on the boundary curves and a length limit to the length of the arc gap between the arcs was held. Mathematical expressions are presented, both in the form of a complex variable, and in the form of a sum of spatial harmonics. It is shown that a high degree of uniformity can be realized with continuous field rotation, herewith, if more marginal arcs of a circle would be, the larger area of homogeneity could be obtained. To implement the continuous rotation of the fields at the arc boundary the harmonic voltage must be submitted with phase shift at each arc boundary equal to the angle between the centers of the arc boundaries.
oai:ojs.radap.kpi.ua:article/175
2024-03-29T08:36:40Z
radiotechnique:electrodynamics
v2
http://radap.kpi.ua/radiotechnique/article/view/175
2024-03-29T08:36:40Z
N
No. 46 (2011); 35-40
The scattering of electromagnetic waves by planar lattice of dielectric resonators
Trubin, A. A.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
url:http://radap.kpi.ua/radiotechnique/article/view/175
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Its present an investigation numerical results of the problem scattering plane electromagnetic waves on dielectric resonator square lattices. Every resonator of lattice is excited on main azimuthally symmetric oscillation of it magnetic mode. It’s examined common mechanism spatial distribution of scattering field in remote zone. Non-classical scattering conditions is occurrence from bending the Snell laws, was investigated. Its show possibility DR plane lattices using as frequency selective reflecting surfaces. For the first time has predicted the “shady” lobe of scattering field is characterize by depressed thickness of power stream of total field in remote zone.
oai:ojs.radap.kpi.ua:article/310
2024-03-29T08:36:40Z
radiotechnique:electrodynamics
v2
http://radap.kpi.ua/radiotechnique/article/view/310
2024-03-29T08:36:40Z
N
No. 35 (2007); 49-53
Defining of the humidity porous medium with using of the radiometric methods (inverse tasks)
Lerman, L. B.; Institute of Surface Chemistry National Academy of Sciences in Ukraine, Kiev
Lioushechenko, M. O.; National University of Life and Environmental Sciences of Ukraine, Kiev
Krivoruchko, Ya. S.; National University of Life and Environmental Sciences of Ukraine, Kiev
Yakymiv, R. Ya.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
url:http://radap.kpi.ua/radiotechnique/article/view/310
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The numerical method of an inverse problem solution of interaction electromagnetic waves with a lamellar media to determination of slabs’ permeability and cross-dimensions of not uniform soils is elaborated. The methods of solving may be used in the system of fine agriculture.
oai:ojs.radap.kpi.ua:article/313
2024-03-29T08:36:40Z
radiotechnique:electrodynamics
v2
http://radap.kpi.ua/radiotechnique/article/view/313
2024-03-29T08:36:40Z
N
No. 35 (2007); 54-59
The calculation of the electromagnet fields in the devises for liming of the foods
Naidenko, V. I.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Sulima, E. A.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Shumakov, D. S.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Lebedev, A. A.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
url:http://radap.kpi.ua/radiotechnique/article/view/313
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It is of the form rectangular wave conductor. Resonant frequencies, Q-qualities, the numbers of vibration types in the magnetron’s band of generation for the domestic microwave have been calculated. Changes of quality were analyzed by covering camera’s sides with absorbing material.
oai:ojs.radap.kpi.ua:article/314
2024-03-29T08:36:40Z
radiotechnique:electrodynamics
v2
http://radap.kpi.ua/radiotechnique/article/view/314
2024-03-29T08:36:40Z
N
No. 35 (2007); 60-65
The dispersion characteristic and distribution of fields in rectangular waveguide with absorbing inserts on the high types waves
Naidenko, V. I.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Dolgenko, D. S.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Sushko, O. Yu.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
url:http://radap.kpi.ua/radiotechnique/article/view/314
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The task of calculation of the characteristics the resonator with the high types waves for increase of power of the multi-ray devices is regarded.
oai:ojs.radap.kpi.ua:article/371
2024-03-29T08:36:40Z
radiotechnique:electrodynamics
v2
http://radap.kpi.ua/radiotechnique/article/view/371
2024-03-29T08:36:40Z
N
No. 34 (2007); 54-58
Electromagnetic waves interaction with a multi-layered spherical lens
Lioushechenko, M. O.; National University of Life and Environmental Sciences of Ukraine, Kiev
Lerman, L. B.; Institute of Surface Chemistry National Academy of Sciences in Ukraine, Kiev
Krivoruchko, Ya. S.; National University of Life and Environmental Sciences of Ukraine, Kiev
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
url:http://radap.kpi.ua/radiotechnique/article/view/371
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Solution of interaction electromagnetic radiation problem with lamellar spherical lens is obtained. The elaborated method determinates dependence of absorbing, scattering and extinction versus slabs characteristics.
oai:ojs.radap.kpi.ua:article/596
2024-03-29T08:36:40Z
radiotechnique:electrodynamics
v2
http://radap.kpi.ua/radiotechnique/article/view/596
2024-03-29T08:36:40Z
N
No. 46 (2011); 13-21
Own waves in a transversely inhomogeneous open cylindrical dielectric waveguide
Gorb, M. S.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Guseva, E. V.; National Technical University of Ukraine, Kyiv Politechnic Institute, Kiev
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
url:http://radap.kpi.ua/radiotechnique/article/view/596
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By the point matching method, taking into account only the even electric longitudinal field components, is considered the eigenvalue problem – constant propagation in inhomogeneous dielectric waveguide. The following model is accepted: a dielectric waveguide of round cross-section with single circular heterogeneity. A result of numerical studies of the dependence of the propagation constant for different types of waves, depending on the parameters and the location of the in homogeneity, are introduced. The results of the study can be extended to the study of waveguides with a cross section of different shapes and/or contain multiple heterogeneous domains with different parameters