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  Subjects -> ELECTRONICS (Total: 146 journals)
Advanced Electromagnetics     Open Access   (9 followers)
Advances in Biosensors and Bioelectronics     Open Access   (1 follower)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (4 followers)
Advances in Microelectronic Engineering     Open Access   (1 follower)
Advances in Power Electronics     Open Access   (7 followers)
Aerospace and Electronic Systems, IEEE Transactions on     Hybrid Journal   (47 followers)
American Journal of Electrical and Electronic Engineering     Open Access   (7 followers)
Annals of Telecommunications     Hybrid Journal   (3 followers)
APL : Organic Electronics and Photonics     Hybrid Journal   (1 follower)
APSIPA Transactions on Signal and Information Processing     Open Access   (2 followers)
Archives of Electrical Engineering     Open Access   (8 followers)
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (5 followers)
Bell Labs Technical Journal     Hybrid Journal   (8 followers)
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (14 followers)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (11 followers)
Biomedical Instrumentation & Technology     Full-text available via subscription   (4 followers)
Broadcasting, IEEE Transactions on     Hybrid Journal   (5 followers)
BULLETIN of National Technical University of Ukraine. Series RADIOTECHNIQUE. RADIOAPPARATUS BUILDING     Open Access   (1 follower)
Bulletin of the Polish Academy of Sciences : Technical Sciences     Open Access  
Canadian Journal of Remote Sensing     Full-text available via subscription   (12 followers)
China Communications     Full-text available via subscription  
Circuits and Systems     Open Access   (6 followers)
Consumer Electronics Times     Open Access   (3 followers)
Control Systems     Hybrid Journal   (18 followers)
Electronic Markets     Hybrid Journal   (5 followers)
Electronic Materials Letters     Hybrid Journal   (2 followers)
Electronics     Open Access   (3 followers)
Electronics and Communications in Japan     Hybrid Journal   (4 followers)
Electronics Letters     Hybrid Journal   (15 followers)
Embedded Systems Letters, IEEE     Hybrid Journal   (14 followers)
EURASIP Journal on Embedded Systems     Open Access   (8 followers)
EURASIP Journal on Image and Video Processing     Open Access   (6 followers)
EURASIP Journal on Wireless Communications and Networking     Open Access   (8 followers)
Foundations and TrendsĀ® in Communications and Information Theory     Full-text available via subscription   (5 followers)
Foundations and TrendsĀ® in Signal Processing     Full-text available via subscription   (4 followers)
Frequenz     Full-text available via subscription   (1 follower)
Frontiers of Optoelectronics     Hybrid Journal  
Geoscience and Remote Sensing, IEEE Transactions on     Hybrid Journal   (19 followers)
Haptics, IEEE Transactions on     Hybrid Journal   (4 followers)
IEEE Consumer Electronics Magazine     Full-text available via subscription   (7 followers)
IEEE Electromagnetic Compatibility Magazine     Full-text available via subscription   (2 followers)
IEEE Journal of Emerging and Selected Topics in Power Electronics     Hybrid Journal   (3 followers)
IEEE Journal of the Electron Devices Society     Open Access   (1 follower)
IEEE Transactions on Audio, Speech, and Language Processing     Hybrid Journal   (9 followers)
IEEE Transactions on Automatic Control     Hybrid Journal   (18 followers)
IEEE Transactions on Consumer Electronics     Hybrid Journal   (10 followers)
IEEE Transactions on Electromagnetic Capability     Hybrid Journal   (10 followers)
IEEE Transactions on Electron Devices     Hybrid Journal   (6 followers)
IEEE Transactions on Information Theory     Hybrid Journal   (12 followers)
IEEE Transactions on Power Electronics     Hybrid Journal   (10 followers)
IEICE - Transactions on Electronics     Full-text available via subscription   (7 followers)
IEICE - Transactions on Information and Systems     Full-text available via subscription   (7 followers)
IET Power Electronics     Hybrid Journal   (7 followers)
IET Wireless Sensor Systems     Hybrid Journal   (5 followers)
IETE Journal of Education     Open Access   (2 followers)
IETE Journal of Research     Open Access   (5 followers)
IETE Technical Review     Open Access   (1 follower)
Industrial Electronics, IEEE Transactions on     Hybrid Journal   (9 followers)
Industry Applications, IEEE Transactions on     Hybrid Journal   (5 followers)
Informatik-Spektrum     Hybrid Journal  
Instabilities in Silicon Devices     Full-text available via subscription  
Intelligent Transportation Systems Magazine, IEEE     Full-text available via subscription   (1 follower)
International Journal of Advanced Electronics and Communication Systems     Open Access   (3 followers)
International Journal of Advanced Research in Computer Science and Electronics Engineering     Open Access   (18 followers)
International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems     Open Access   (1 follower)
International Journal of Aerospace Innovations     Full-text available via subscription   (10 followers)
International Journal of Applied Electronics in Physics & Robotics     Open Access  
International Journal of Biomedical Nanoscience and Nanotechnology     Hybrid Journal   (3 followers)
International Journal of Computational Vision and Robotics     Hybrid Journal   (4 followers)
International Journal of Computer & Electronics Research     Full-text available via subscription   (2 followers)
International Journal of Control     Hybrid Journal   (9 followers)
International Journal of Electronics     Hybrid Journal   (2 followers)
International Journal of Electronics & Data Communication     Open Access   (3 followers)
International Journal of Electronics and Telecommunications     Open Access   (3 followers)
International Journal of Granular Computing, Rough Sets and Intelligent Systems     Hybrid Journal   (1 follower)
International Journal of High Speed Electronics and Systems     Hybrid Journal  
International Journal of Microwave and Wireless Technologies     Hybrid Journal   (1 follower)
International Journal of Nano Devices, Sensors and Systems     Open Access   (1 follower)
International Journal of Nanoscience     Hybrid Journal   (1 follower)
International Journal of Numerical Modelling:Electronic Networks, Devices and Fields     Hybrid Journal   (2 followers)
International Journal of Power Electronics     Hybrid Journal   (3 followers)
International Journal of Power Management Electronics     Open Access  
International Journal of Review in Electronics & Communication Engineering     Open Access   (1 follower)
International Journal of Sensors, Wireless Communications and Control     Hybrid Journal   (1 follower)
International Journal of Systems, Control and Communications     Hybrid Journal   (2 followers)
International Journal on Communication     Full-text available via subscription   (6 followers)
International Journal on Electrical and Power Engineering     Full-text available via subscription   (11 followers)
ISRN Communications and Networking     Open Access   (4 followers)
ISRN Electronics     Open Access   (1 follower)
ISRN Signal Processing     Open Access  
Journal of Advanced Dielectrics     Open Access   (1 follower)
Journal of Artificial Intelligence     Open Access   (5 followers)
Journal of Circuits, Systems, and Computers     Hybrid Journal   (1 follower)
Journal of Electrical and Electronics Engineering Research     Open Access   (1 follower)
Journal of Electrical Bioimpedance     Full-text available via subscription   (2 followers)
Journal of Electrical Engineering & Electronic Technology     Full-text available via subscription   (1 follower)
Journal of Electromagnetic Analysis and Applications     Open Access   (3 followers)
Journal of Electromagnetic Waves and Applications     Hybrid Journal   (2 followers)
Journal of Electronic Design Technology     Full-text available via subscription  
Journal of Electronics (China)     Hybrid Journal   (2 followers)

        1 2 | Last

Radiophysics and Quantum Electronics    [5 followers]  Follow    
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
     ISSN (Print) 1573-9120 - ISSN (Online) 0033-8443
     Published by Springer-Verlag Homepage  [2187 journals]   [SJR: 0.274]   [H-I: 8]
  • Radiative Lifetime of Wannier—Mott Excitons in Nanoclusters of
           Semiconductors with Direct- and Indirect Band Structures
    • Abstract: We calculate the radiative lifetime of Wannier—Mott excitons in potential wells formed by nanoclusters of narrow-band semiconductors in wide-band materials. Examples of semiconductor nanoclusters with both direct and indirect band structures (InAs and diamond, respectively) are analyzed. It is shown that in the case of nanoclusters of direct-band semiconductors the radiative lifetime of the Wannier—Mott excitons in them is determined by recombination of the electrons and holes, which form the excitons, without participation of phonons, and increases significantly as the cluster size decreases. In the case of nanoclusters of indirect-band semiconductors, the radiative lifetime of the Wannier—Mott excitons in them is determined by recombination of the electrons and holes, which form the excitons, with simultaneous radiation of phonons and is weakly dependent on the cluster size. The effect of the increase in the radiative lifetime of the Wannier—Mott excitons in nanoclusters of direct-band semiconductors with a decrease in their dimensions can be used in various exciton experiments, which require comparatively great time resources.
      PubDate: 2013-12-18
       
  • Method for Estimating the Number of Radiation Sources in the Problem of
           the Amplitude Monopulse Direction Finding
    • Abstract: We propose an algorithm for processing the signals received by a multichannel amplitude monopulse direction-finding system, which allows one to estimate the radiation-source number in the operating region of space. The decision on the number of sources is made on the basis of the threshold method. The threshold value is determined using the criterion of minimum of the sum of the conditional error probability.
      PubDate: 2013-12-10
       
  • Electronic Tuning of the Working Frequency of a Gyrotron with an Echelette
           Structure
    • Abstract: We discuss the possibility of developing high-power gyrotrons with electric tuning of operating frequencies on the basis of the use of echelette systems. Along with the high selective properties, such systems are capable of reducing Q-factors of modes so that resonance properties completely disappear, while the electromagnetic-field structure, which ensures the efficient interaction of the field with the electron beam, is retained. A gyrortron with an echelette cavity is described, in which the Q-factor of the working mode was below the minimum diffraction Q-factor and the working frequency was tuned in a wide range.
      PubDate: 2013-12-10
       
  • Structure of the Electric Field of a High-Power Radio Wave in the Outer
           Ionosphere
    • Abstract: The electric field of a high-power HF radio wave radiated by the Sura facility was measured using onboard instruments of the French microsatellite DEMETER at altitudes of 670 km. The data analysis shows that the high-power radio wave passes to the outer ionosphere under conditions where the difference between the cutoff frequency and the pump-wave frequency does not exceed 0.5–0.7 MHz in the undisturbed ionosphere. Energy and spatial characteristics of the high-power radio wave transmitted through the ionosphere are determined. A possible mechanism explaining such a penetration to the supercritical plasma is discussed.
      PubDate: 2013-12-10
       
  • Influence of the Refractivity and Temperature of the Ambient Medium on the
           Eigenfrequencies of Quasioptical Cylindrical Dielectric Resonators
    • Abstract: We attempt for the first time to separate the influences of the temperature and refractivity of the ambient air space on the spectral and energy characteristics of cylindrical Teflon and leucosapphire resonators with the whispering gallery modes in the millimeter-wave range. It is found that under conditions of natural fluctuations of the above-mentioned factors of the studied ambient medium, the degree of temperature influence on the resonator eigenfrequencies is more significant. We demonstrate that quasioptical cylindrical dielectric resonators can be used as sensors of the temperature of the ambient air medium and ensure an accuracy of 10−4°C when their resonant frequencies are measured with an accuracy of 100 Hz. A method for determination of the air refractivity has been developed, which uses the considered resonator as a temperature sensor and a measuring cell of the microwave resonator refractometer. A refractometer sensor has been developed on the basis of two identical resonators with whispering gallery modes. The differential two-resonator refractometer compensates for the influence of changes in the temperature of the ambient medium on the measured difference of the eigenfrequencies of resonators with identical modes. It is found that the accuracy of determination of the air refractivity is ensured at a level of 10-2 if the frequency difference is measured with an accuracy of 10 Hz.
      PubDate: 2013-12-10
       
  • Aerosol-Size Spread Influence on Dissipative Instability of Aerosol Flows
           in the Planetary Atmospheres. I. Earth’s Mesosphere
    • Abstract: The influence of aerosol-size spread on the dissipative instability of the aerosol flow in a cold weakly ionized collisional plasma is considered. The instability is generated by the relative motion of the aerosol and ion components due to the gravity fall of aerosols. The studies allow for the molecular ion diffusion, charging of large particles, and their size spread within the framework of three model distributions, i.e., monodisperse ensemble, power-law distribution, and Gaussian distribution. The threshold charge values on the aerosols, which are required for the instability development, are obtained as functions of the system parameters. The particle-size spread is shown to significantly increase the threshold charge value and qualitatively change its dependence on some parameters. In particular, it decreases with increasing aerosol velocity in the absence of spread, and the dependence of the threshold value on the parameters determining the aerosol velocity is at the minimum when the spread is allowed for. The threshold charge increases with increasing coefficient of ion diffusion. Qualitative estimates of the threshold charges and characteristic instability scales are obtained for the Earth’s mesospheric conditions at altitudes of 80 to 90 km.
      PubDate: 2013-12-10
       
  • Properties of the ULF/VLF Signals Generated by the Sura Facility in the
           Upper Ionosphere
    • Abstract: The results of studying the generation of low-frequency radiation in the ionosphere affected by high-power modulated HF radiation of the Sura facility are presented. A large amount of data on characteristics of the ULF/VLF artificial signals observed in the night time, which indicate the manifestation of a new generation mechanism not related to the quasistationary ionospheric current modulation effect, have been obtained for the first time at the mid-latitudes. The results of studying the dependence of the signal value on the beam inclination of the pump wave and the distance to the observation point from the facility are presented. It is shown that the signals can be both right- and left-hand polarized depending on the level of geomagnetic activity. The measured time delay of the ULF signal indicates the location of the source at the F-layer maximum. Interpretation of the observed characteristics of artificial low-frequency signals based on a ponderomotive excitation mechanism of the diamagnetic ring current around the HF radiation beam at a modulation frequency agrees with the main results of the experiment.
      PubDate: 2013-12-10
       
  • Erratum to the article “Nonstationary Quasielectrostatic Radiation
           Field of Dipole Antennas in a Magnetized Plasma in the Resonance Frequency
           Band,” by E.A. Shirokov and Yu.V.Chugunov, Vol. 54, No. 7, pp.
           463-473, December, 2011.
    • PubDate: 2013-12-10
       
  • Recovery of the Nonmonotonic Altitude Profile of the Plasma Frequency
           Based on the Ionospheric Oblique Sounding Data
    • Abstract: We propose a method and an algorithm for recovery of the nonmonotonic altitude profile of the plasma frequency using the model data on oblique sounding of a spherically layered isotropic ionosphere in the piecewise-quasiparabolic approximation of the altitude profile of the electron number density. The algorithm has been tested with a fairly complex ionosphere model allowing for the E, F1, and F2 layers and the E–F1 interlayer valley. This method was used to recover the effective altitude profile of the plasma frequency at the midpoints of the Khabarovsk–Tory, Magadan–Tory, Norilsk–Tory, and Usolie–Tory paths from the experimental ionograms having a gap in the single-hop mode traces.
      PubDate: 2013-12-10
       
  • The Collector of a Megawatt Gyrotron with a Static Nonadiabatic Magnetic
           Field
    • Abstract: We have developed the concept and design of a collector with a static nonadiabatic magnetic field, which allow one to exclude the influence of pulsed thermal loads and accumulation of nonelastic deformations in the collector body, as well as achieve the nearly uniform distribution of the heat release power density over its surface for an energy load of about 500 W/cm2. Such a collector is characterized by moderate criticality with respect to variations in the electron energy distribution and the effect of an external scattering magnetic field. The decrease in criticality is achieved by choosing the cylindrical shape of the collector and using two pairs of counter-wound low-power solenoids in the collector system.
      PubDate: 2013-12-10
       
  • On Increasing the Efficiency of Penetration of an Electromagnetic Wave
           into a Dense Plasma Layer
    • Abstract: We study a method for increasing the efficiency of penetration of an intense electromagnetic wave into a layer of dense plasma. The method is based on the phenomenon of spatio-temporal synchronism of the nonlinear dynamic structures, which are excited in the layer, with the modulated wave incident on the layer. It has been established that in the case of a relatively weakly overdense plasma, the efficiency of constant-amplitude wave penetration into the plasma layer is determined by a single nonlinear parameter, namely, the ratio of the intensity of the incident radiation to the degree of plasma super-criticality, and increases with an increase in this parameter. It is found that a modulation of the amplitude of an incident wave, whose period is a multiple of the soliton generation period, can lead to a significant increase in the penetration efficiency.
      PubDate: 2013-12-10
       
  • Influence of the Aerosol-Size Spread on Dissipative Instability of Aerosol
           Flows in the Planetary Atmospheres. II. Atmospheres of Mars and Titan
    • Abstract: The results on the aerosol-size spread influence on dissipative instability of aerosol flow in a cold weakly ionized collisional plasma, which were obtained in the first part of this paper [1], are used for the Mars (altitudes 70–100 km) and Titan (altitudes 900–1200 km) atmospheric conditions. The threshold charges and characteristic space–time instability scales are quantitatively estimated.
      PubDate: 2013-12-10
       
  • Numerical Implementation of the Double-Weighted Fourier Transforms in the
           Problems of Wave Propagation in Inhomogeneous Media
    • Abstract: A numerical scheme for calculating direct and inverse double-weighted Fourier transform (DWFT) in the problems of wave propagation in inhomogeneous media on the basis of the fast Fouriertransform algorithm is proposed. The sampling step for which it is possible to recover a continuous field without information loss is estimated. The numerical calculation data are given and the obtained results are discussed. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 56, No. 7, pp. 514–523, July 2013.
      PubDate: 2013-12-10
       
  • Eliminating the Effects of Multipath Signal Propagation in a Smoothly
           Inhomogeneous Medium
    • Abstract: One of the important problems of communication, navigation, and diagnostics of inhomogeneous media is multipathing, in which the signal propagates on different paths between the points of emission and reception. In this paper, using a numerical simulation we explore the capabilities of the spatial signal processing to eliminate the effects of multipath signal propagation in a smoothly inhomogeneous medium. It is shown that the multipathing effects disappear after the spatial processing based on double weighted Fourier transform in the presence of multipath propagation in a medium with irregularity scales both more and less than the Fresnel radius.
      PubDate: 2013-12-10
       
  • Analysis of Retrieval of the Vertical Refractive-Index Profile in the
           Troposphere using the Signals from the Global Navigation Satellite Systems
           
    • Abstract: We present the results of studying the altitude structure of the wave refractive index by a network of seven ground-based GPS and GLONASS receivers located in Kazan’. Various versions of the voxel (elementary volume) grid are studied. The results obtained without and with allowance for averaging for a certain time interval are analyzed. The results are checked by comparing with the radiosonde data. The recommendations for choosing the voxel grid are given.
      PubDate: 2013-12-10
       
  • Evolution of the Spatial Parameters of a Light Pulse During Its
           Propagation in a Medium with Strongly Anisotropic Scattering
    • Abstract: We obtain the equations for determining the spatial moments of the radial distribution of brightness in the pulsed radiation field of a point isotropic source and similar characteristics of the distribution of irradiance from a point unidirectional source on the assumption of strong anisotropy of the scattering indicatrix of a medium and the studied light field. The procedure of analytical solution of these equations is shown. Formulas for calculating the spatial parameters of the light pulse at a given time instant, i.e., the distance between the front edge and the barycenter of the pulse, as well as its characteristic length, are derived. It is shown how and under which conditions the time parameters of the pulse can be determined from its spatial parameters.
      PubDate: 2013-10-01
       
  • Resonant Conversion of the Point-Source Field to Multipole Radiation Using
           Ring Layer of the Overcritical Plasma
    • Abstract: We study numerically the two-dimensional problem of excitation of a hollow round cylinder, which is made of a nonmagnetic material with μ = 1 and the negative dielectric permittivity ε < 0, by a filamentary source. It is found that when the relative dielectric permittivity is close to −1, high-Q resonances exist in hollow cylinders having electrically small diameters. We show that when the source of a cylindrical wave is located within the cavity, undirected radiation is converted at the resonance frequency into multipole radiation with a great number of identical lobes in the radiation pattern. The patterns of the near and far fields are calculated. The influence of the loss on the resonance properties is studied.
      PubDate: 2013-10-01
       
  • Diffraction of Cylindrical Waves by a Plane-Stratified Structure with a
           Cylindrical Inclusion
    • Abstract: We consider the problem of radiation from an electric-current filament located near the surface of a multilayer plane dielectric structure with a cylindrical inclusion. It is assumed that the penetrable inclusion lies completely within one of the layers and its generatrices are parallel to the current filament. The solution is obtained using the modified zero-field method. The results of numerical simulation and their physical analysis are presented.
      PubDate: 2013-10-01
       
  • Kinetic Theory of Radiation from a Point Monochromatic Dipole Source in a
           Moving Magnetized Plasma
    • Abstract: We consider the problem of radiation from a point monochromatic dipole source in the warm electron plasma which is moving with constant velocity along a strong magnetic field. The diagonal permittivity tensor calculated for the magnetized plasma with the Maxwell electron velocity distribution is used to describe the electromagnetic properties of the plasma. The dispersion relation is analyzed numerically and expressions for the field amplitudes in the wave zone are derived. The kinetic description is shown to be necessary for finding the amplitudes of waves whose phase velocities are close to the mean velocity of the plasma motion.
      PubDate: 2013-10-01
       
  • Features of the Wave Disturbances in the Ionosphere During Periodic
           Heating of the Plasma by the “Sura” Radiation
    • Abstract: We present the results of observations of the Doppler-spectrum and Doppler-frequency shift variations of the ionosphere-reflected radio signals from a high-frequency vertical-sounding radar when the ionospheric plasma is affected by the high-power periodic radiation of the “Sura” heating facility. The distance from the heater to the Doppler radar is about 960 km. It has been confirmed that high-power radiation leads to the generation (amplification) of wave disturbances in the parameter range of internal gravity waves (periods 10–30 min and velocities 360–460 m/s). Soliton-like wave packets with a period of 10–15 min, a duration of 20–30 min, and a relative amplitude of electron-density perturbations from 3 to 8 % have been detected. The same parameter for other wave disturbances was 1–3 %. It has been confirmed that the generation efficiency of periodic disturbances in the parameter range of internal gravity waves depends significantly on the heater operation regime.
      PubDate: 2013-10-01
       
 
 
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