Pub Date : 2013-06-23DOI: 10.1109/MSMW.2013.6622148
A. Belov
Consider a planar metal waveguide with nonlinear insertion in the interval [0,1] along the x -axis. The field u in the waveguide is described by the following problem for the Helmholtz equation with partial radiation conditions. In order to reveal the effects, caused by nonlinearity, we seek approximate solution by the incomplete Galerkin method, restricting ourselves to two modes. Thus, initial problem for partial differentiation equation is reduced to mechanical problem of two bodies with Hamiltonian. Linear conversion of variables allows to separate variables in the Hamiltonian, i.e.bring it to the form.The paper provides calculations, based on derived formulae, and solution plots for given integration constants. Also existence of multivalued solution for some falling amplitudes and existence of solutions corresponding to zero falling amplitudes are proved.
{"title":"On the waveguide with nonlinear insert","authors":"A. Belov","doi":"10.1109/MSMW.2013.6622148","DOIUrl":"https://doi.org/10.1109/MSMW.2013.6622148","url":null,"abstract":"Consider a planar metal waveguide with nonlinear insertion in the interval [0,1] along the x -axis. The field u in the waveguide is described by the following problem for the Helmholtz equation with partial radiation conditions. In order to reveal the effects, caused by nonlinearity, we seek approximate solution by the incomplete Galerkin method, restricting ourselves to two modes. Thus, initial problem for partial differentiation equation is reduced to mechanical problem of two bodies with Hamiltonian. Linear conversion of variables allows to separate variables in the Hamiltonian, i.e.bring it to the form.The paper provides calculations, based on derived formulae, and solution plots for given integration constants. Also existence of multivalued solution for some falling amplitudes and existence of solutions corresponding to zero falling amplitudes are proved.","PeriodicalId":104362,"journal":{"name":"2013 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123832274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-23DOI: 10.1109/MSMW.2013.6622135
N. Klein, T. H. Basey-Fisher, W. J. Otter, N. Guerra, C. Triulzi, A. Gregory, S. Hanham, S. Lucyscyn
Bio-sensing by electromagnetic waves from GHz towards THz frequencies, although not yet established as a common method for biomedical applications, offers challenging opportunities, which are complementary to the established optical methods, often based on plasmonic waves and resonances. The longer wavelength - in comparison to visible and IR provides a disadvantage in terms of the smallest possible interaction volume, which can be partially overcome by evanescent field methods. However, the high absorption of micro- and millimetre waves by liquid water, which is the most abundant component of biological substances, provides a unique observation window, which is substantially different and therefore complementary to the other parts of the electromagnetic spectrum.
{"title":"Towards microwave and millimter wave biosensors","authors":"N. Klein, T. H. Basey-Fisher, W. J. Otter, N. Guerra, C. Triulzi, A. Gregory, S. Hanham, S. Lucyscyn","doi":"10.1109/MSMW.2013.6622135","DOIUrl":"https://doi.org/10.1109/MSMW.2013.6622135","url":null,"abstract":"Bio-sensing by electromagnetic waves from GHz towards THz frequencies, although not yet established as a common method for biomedical applications, offers challenging opportunities, which are complementary to the established optical methods, often based on plasmonic waves and resonances. The longer wavelength - in comparison to visible and IR provides a disadvantage in terms of the smallest possible interaction volume, which can be partially overcome by evanescent field methods. However, the high absorption of micro- and millimetre waves by liquid water, which is the most abundant component of biological substances, provides a unique observation window, which is substantially different and therefore complementary to the other parts of the electromagnetic spectrum.","PeriodicalId":104362,"journal":{"name":"2013 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125197508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-23DOI: 10.1109/MSMW.2013.6622125
Z. Eremenko, V. Skresanov
The measurement of the complex permittivity (CP) of liquids is in demand in various fields of science and technology. For example, in a review paper are numerous practical examples of measurements CP absorbing liquids, which primarily includes water and aqueous solutions of various substances. We are developing a method to solve the dielectrometry problem to control natural liquid products. In particular, it was shown that the dielectrometry method is more effective in comparison with known methods of detection of wine and juice dilutions with additional water. The basic requirement for monitoring natural liquid product is a high differential sensitivity of the device, that is, the ability to distinguish small amounts of added substances in aqueous solutions.
{"title":"High sensitivity cavity for permittivity measurement of strongly absorbed liquids","authors":"Z. Eremenko, V. Skresanov","doi":"10.1109/MSMW.2013.6622125","DOIUrl":"https://doi.org/10.1109/MSMW.2013.6622125","url":null,"abstract":"The measurement of the complex permittivity (CP) of liquids is in demand in various fields of science and technology. For example, in a review paper are numerous practical examples of measurements CP absorbing liquids, which primarily includes water and aqueous solutions of various substances. We are developing a method to solve the dielectrometry problem to control natural liquid products. In particular, it was shown that the dielectrometry method is more effective in comparison with known methods of detection of wine and juice dilutions with additional water. The basic requirement for monitoring natural liquid product is a high differential sensitivity of the device, that is, the ability to distinguish small amounts of added substances in aqueous solutions.","PeriodicalId":104362,"journal":{"name":"2013 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves","volume":"28 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130180958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-23DOI: 10.1109/MSMW.2013.6622156
V. Pavlikov
Radiometric devices and systems widely apply at the solution of problems of radio astronomy, radio meteorology, remote sensing, radar-location and medicine. In such systems power characteristics of radiation of physical objects are subject to estimation. For restoration of radiometric images (power characteristics as functions of angular or spatial coordinates) use two main approaches. The first is based on use of scanning or mobile radiometers. The second is based on use systems of aperture synthesis. In spite of the fact that hardware realization of aperture synthesis systems is more difficult, advantages of their use in problems of images formation are obvious. Such systems allow to reach high resolution on angular (spatial) coordinates. Decades of developing in a depths of radio astronomy they recently extended on the solution of significantly wider class of problems (for example, the SMOS project). However the analysis showed that, paying essential attention to a choice of geometry of antenna arrays, questions of synthesis optimum algorithms of space-time signal processing in such systems need detailed research.
{"title":"Algorithm of optimum restoration of the radiometric image in two-antenna broadband system of aperture synthesis","authors":"V. Pavlikov","doi":"10.1109/MSMW.2013.6622156","DOIUrl":"https://doi.org/10.1109/MSMW.2013.6622156","url":null,"abstract":"Radiometric devices and systems widely apply at the solution of problems of radio astronomy, radio meteorology, remote sensing, radar-location and medicine. In such systems power characteristics of radiation of physical objects are subject to estimation. For restoration of radiometric images (power characteristics as functions of angular or spatial coordinates) use two main approaches. The first is based on use of scanning or mobile radiometers. The second is based on use systems of aperture synthesis. In spite of the fact that hardware realization of aperture synthesis systems is more difficult, advantages of their use in problems of images formation are obvious. Such systems allow to reach high resolution on angular (spatial) coordinates. Decades of developing in a depths of radio astronomy they recently extended on the solution of significantly wider class of problems (for example, the SMOS project). However the analysis showed that, paying essential attention to a choice of geometry of antenna arrays, questions of synthesis optimum algorithms of space-time signal processing in such systems need detailed research.","PeriodicalId":104362,"journal":{"name":"2013 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121035901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-23DOI: 10.1109/MSMW.2013.6622055
Y. Ilyushin, B. Kutuza
The study of precipitation using the observation of the Earth from space is one of the important problems of remote sensing [1]. In the previous studies, the polarization of precipitation radiation was not taken into account, which is represented by second Stokes vector component Q. Polarization effect of rain radiation caused by the flattening of large rain drops during their fall to the Earth is a typical signature of precipitation [2]. As it is known, the Stokes vector expressed in a horizontal-vertical linear polarization basis (h,v-basis) is build from the electrical field components Eh and Ev. The Stokes vector components have the dimension of intensity.
{"title":"New possibilities of the use of synthetic aperture millimeter-wave radiometric interferometer for precipitation remote sensing from space","authors":"Y. Ilyushin, B. Kutuza","doi":"10.1109/MSMW.2013.6622055","DOIUrl":"https://doi.org/10.1109/MSMW.2013.6622055","url":null,"abstract":"The study of precipitation using the observation of the Earth from space is one of the important problems of remote sensing [1]. In the previous studies, the polarization of precipitation radiation was not taken into account, which is represented by second Stokes vector component Q. Polarization effect of rain radiation caused by the flattening of large rain drops during their fall to the Earth is a typical signature of precipitation [2]. As it is known, the Stokes vector expressed in a horizontal-vertical linear polarization basis (h,v-basis) is build from the electrical field components Eh and Ev. The Stokes vector components have the dimension of intensity.","PeriodicalId":104362,"journal":{"name":"2013 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121546949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-23DOI: 10.1109/MSMW.2013.6622028
E. Prokhorov, O. Botsula, O. A. Reutina
The RTB planar diode shows a negative active impedance component (ReZ <; 0) in the range of wide frequencies. Frequencies corresponding to ReZ → 0 for analyzed microstructures (when S ~ 10-6 cm2), remain within the range up to 100 ... 300 GHz.
RTB平面二极管显示负有源阻抗分量(ReZ -6 cm2)，保持在高达100…300 GHz。
{"title":"Impedance of planar diode with a resonant-tunnel border","authors":"E. Prokhorov, O. Botsula, O. A. Reutina","doi":"10.1109/MSMW.2013.6622028","DOIUrl":"https://doi.org/10.1109/MSMW.2013.6622028","url":null,"abstract":"The RTB planar diode shows a negative active impedance component (ReZ <; 0) in the range of wide frequencies. Frequencies corresponding to ReZ → 0 for analyzed microstructures (when S ~ 10<sup>-6</sup> cm<sup>2</sup>), remain within the range up to 100 ... 300 GHz.","PeriodicalId":104362,"journal":{"name":"2013 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128289132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-23DOI: 10.1109/MSMW.2013.6622146
V. V. Pechenin, K. A. Shcherbina, O. Voitenko
Modern trends of further development and improvement of aerospace systems, increasing safety requirements of space and air vehicle predetermine increasing demands for accuracy characteristics of radio measuring systems of the control parameters of motion of aircraft. Significant place in the overall structure of radioengineering safety aids of FO occupy frequency and phase radio system (RTS). In the development and practical implementation of filter of phase frequency and paths RS active selecting systems (ASS), with the scheme-frequency phase-locked loop type PAC, FL and FPL as their main element are widely used. This report give analysis of their main properties, advantages and disadvantages on such basic frequency parameter as the band capture and the variable frequency filtere signal holding, frequency and phase tracking errors and others.
{"title":"A tracking filter based on circuit FLL with improved noise-immunity","authors":"V. V. Pechenin, K. A. Shcherbina, O. Voitenko","doi":"10.1109/MSMW.2013.6622146","DOIUrl":"https://doi.org/10.1109/MSMW.2013.6622146","url":null,"abstract":"Modern trends of further development and improvement of aerospace systems, increasing safety requirements of space and air vehicle predetermine increasing demands for accuracy characteristics of radio measuring systems of the control parameters of motion of aircraft. Significant place in the overall structure of radioengineering safety aids of FO occupy frequency and phase radio system (RTS). In the development and practical implementation of filter of phase frequency and paths RS active selecting systems (ASS), with the scheme-frequency phase-locked loop type PAC, FL and FPL as their main element are widely used. This report give analysis of their main properties, advantages and disadvantages on such basic frequency parameter as the band capture and the variable frequency filtere signal holding, frequency and phase tracking errors and others.","PeriodicalId":104362,"journal":{"name":"2013 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131257054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-23DOI: 10.1109/MSMW.2013.6622005
V. Borulko
The consideration of electromagnetic wave propagation in open irregular waveguiding structures usually assumes either smooth varying of medium parameters or their rigorously periodical perturbation. Combination of smooth and oscillated parameter perturbations leads to additional peculiarities of Bragg scattering. Anisotropy of parameters causes coupling of waves with different polarization. In the present paper using complex form of asymptotic method of Krylov, Bogoliubov and Mitropolsky (KBM), mutual transformation of waves in open guided structures in the form of an impedance rod with spatially oscillated surface impedance has been theoretically considered. Influence of exiting of surface waves propagating along the impedance rod on scattering wave beams has been analyzed. For some types of perturbations the solutions of coupled-wave equations of KBM method have been obtained and expressions for perturbed wavenumbers of eigenwaves have been derived. In general case the differential equations with slowly varying coefficients are rather easily integrated by a numerical method. Longitudinal distributions of wave complex amplitudes describe combination of different physical phenomena in examined structure.
{"title":"Asymptotic solution for Bragg reflection of surface and volume waves on nonperiodically inhomogeneous impedance rod","authors":"V. Borulko","doi":"10.1109/MSMW.2013.6622005","DOIUrl":"https://doi.org/10.1109/MSMW.2013.6622005","url":null,"abstract":"The consideration of electromagnetic wave propagation in open irregular waveguiding structures usually assumes either smooth varying of medium parameters or their rigorously periodical perturbation. Combination of smooth and oscillated parameter perturbations leads to additional peculiarities of Bragg scattering. Anisotropy of parameters causes coupling of waves with different polarization. In the present paper using complex form of asymptotic method of Krylov, Bogoliubov and Mitropolsky (KBM), mutual transformation of waves in open guided structures in the form of an impedance rod with spatially oscillated surface impedance has been theoretically considered. Influence of exiting of surface waves propagating along the impedance rod on scattering wave beams has been analyzed. For some types of perturbations the solutions of coupled-wave equations of KBM method have been obtained and expressions for perturbed wavenumbers of eigenwaves have been derived. In general case the differential equations with slowly varying coefficients are rather easily integrated by a numerical method. Longitudinal distributions of wave complex amplitudes describe combination of different physical phenomena in examined structure.","PeriodicalId":104362,"journal":{"name":"2013 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123750752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-23DOI: 10.1109/MSMW.2013.6622198
A. Pogorily, A. Tovstolytkin, D. Polishchuk, T. Polek
Doped perovskite manganites La1-xAxMnO3 with alkaline (or alkaline-earth) ions A have received considerable attention due to their interesting magnetic, magnetoresistive, and microwave properties [1-3]. Such compounds are examples of materials with complex magnetic orderings which exist over wide temperature and concentration ranges [4-7]. However, to date, the properties of these materials in the vicinity of magnetic ordering temperatures have been poorly studied. In this work, we investigate peculiarities of magnetic phase transition near magnetic ordering temperature of La1-xBixMnO3+δ with the use of electron spin resonance (ESR) technique.
{"title":"Electron spin resonance study of mixed magnetic states in bulk samples of (La,Bi)MnO3+delta system","authors":"A. Pogorily, A. Tovstolytkin, D. Polishchuk, T. Polek","doi":"10.1109/MSMW.2013.6622198","DOIUrl":"https://doi.org/10.1109/MSMW.2013.6622198","url":null,"abstract":"Doped perovskite manganites La<sub>1-x</sub>A<sub>x</sub>MnO<sub>3</sub> with alkaline (or alkaline-earth) ions A have received considerable attention due to their interesting magnetic, magnetoresistive, and microwave properties [1-3]. Such compounds are examples of materials with complex magnetic orderings which exist over wide temperature and concentration ranges [4-7]. However, to date, the properties of these materials in the vicinity of magnetic ordering temperatures have been poorly studied. In this work, we investigate peculiarities of magnetic phase transition near magnetic ordering temperature of La<sub>1-x</sub>Bi<sub>x</sub>MnO<sub>3+δ</sub> with the use of electron spin resonance (ESR) technique.","PeriodicalId":104362,"journal":{"name":"2013 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126523179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-06-23DOI: 10.1109/MSMW.2013.6622105
I. Vasylieva, V. Zakharenko
The sources of rapidly varying emission represent the wide branch of astrophysics, which can provide the unique information about the exotic cosmic sources, remote compact areas and the remnants of explosive or dynamic events. These sources also can serve the probes of the interstellar medium due to the propagation effects - dispersion, scattering, and Faraday rotation of polarization plane of linearly polarized radiation in a magnetic field.
{"title":"First results of the high time resolution Northern sky survey at lowest frequency range observable from the ground","authors":"I. Vasylieva, V. Zakharenko","doi":"10.1109/MSMW.2013.6622105","DOIUrl":"https://doi.org/10.1109/MSMW.2013.6622105","url":null,"abstract":"The sources of rapidly varying emission represent the wide branch of astrophysics, which can provide the unique information about the exotic cosmic sources, remote compact areas and the remnants of explosive or dynamic events. These sources also can serve the probes of the interstellar medium due to the propagation effects - dispersion, scattering, and Faraday rotation of polarization plane of linearly polarized radiation in a magnetic field.","PeriodicalId":104362,"journal":{"name":"2013 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121960913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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