Poslední příspěvky

  • Current and Future Research Trends in Substrate Integrated Waveguide Technology 

    M. Bozzi, L. Perregrini, K. Wu, P. Arcioni (Společnost pro radioelektronické inženýrství, 2009-06)
    Substrate Integrated Waveguide (SIW) technology is the most promising candidate for the implementation of millimeter-wave (mm-wave) integrated circuits and systems for the next decade. Based on planar dielectric substrates ...
  • Synthetic Aperture Radar - Hardware Development 

    Rosner, V.; Seller, R.; Dudas, L.; Kazi, K.; Miko, G. (Společnost pro radioelektronické inženýrství, 2009-06)
    Experimental real and synthetic aperture radar are developed from the base-band digital unit to the analogue RF parts, based on solid state units, using pulse compression for radar imaging. Proper QPSK code is found for ...
  • Distribution of Video-on-Demand Service over Cable Television Networks 

    Jordanova, L. T.; Nenkov, J. I. (Společnost pro radioelektronické inženýrství, 2009-06)
    The paper deals with investigations carried out to increase the effectiveness of video-on-demand (VoD) systems when cable television networks are used. A comparative analysis of the existing VoD architectures is made with ...
  • A Simple Signal Shaper for GMSK/GFSK and MSK Modulator Based on Sigma-Delta Look-up Table 

    Svedek, T.; Herceg, M.; Matic, T. (Společnost pro radioelektronické inženýrství, 2009-06)
    Due to wide power spectrums of rectangular data streams, it is important for base-band signals to be heavily band limited before modulation. That can be achieved by pulse shaping of rectangular bits. Some of the most common ...
  • Using Digital Filtration for Hurst Parameter Estimation 

    Prochaska, J.; Vargic, R. (Společnost pro radioelektronické inženýrství, 2009-06)
    We present a new method to estimate the Hurst parameter. The method exploits the form of the autocorrelation function for second-order self-similar processes and is based on one-pass digital filtration. We compare the ...
  • UWB System Performance Improvement Using Smart Interference Rejection Filter 

    Dimitrijevic, B.; Milosevic, N.; Nikolic, Z.; Petrovic, P. (Společnost pro radioelektronické inženýrství, 2009-06)
    In this paper we proposed a smart interference rejection filter in TH-PPM UWB system, which improves the system\'s error probability for an order of magnitude in case of high power OFDM interference. The smart filter is ...
  • Wireless Sensor Networks: VAN-Project Perspectives 

    Lakkundi, V.; Kratzig, M. (Společnost pro radioelektronické inženýrství, 2009-06)
    The emergence of wireless sensor networks and their potential for a multitude of novel applications, especially in the industrial automation domain, are noteworthy. This paper presents research and development perspectives ...
  • Compensation of Wall Effect for Through Wall Tracking of Moving Targets 

    Rovnakova, J.; Kocur, D. (Společnost pro radioelektronické inženýrství, 2009-06)
    Through wall tracking of moving targets is of interest for rescue, surveillance and security operations. A useful method applies an ultra-wideband radar approach for this purpose since electromagnetic waves in the lower ...
  • Influence of EBG Structures on the Far-Field Pattern of Patch Antennas 

    Horak, J.; Raida, Zbyněk (Společnost pro radioelektronické inženýrství, 2009-06)
    In this paper, the influence of the EBG structures on the far-field pattern of patch antennas is investigated. As a reference model, a conventional rectangular patch antenna on a high-permittivity substrate is used. The ...
  • SPICE Model of Memristor with Nonlinear Dopant Drift 

    Biolek, Zdeněk; Biolek, Dalibor; Biolková, Viera (Společnost pro radioelektronické inženýrství, 2009-06)
    A mathematical model of the prototype of memristor, manufactured in 2008 in Hewlett-Packard Labs, is described in the paper. It is shown that the hitherto published approaches to the modeling of boundary conditions need ...
  • Comparative Analysis of Guided Modal Properties of Double-Positive and Double-Negative Metamaterial Slab Waveguides 

    Kim, K. Y. (Společnost pro radioelektronické inženýrství, 2009-06)
    The guided modal properties of double-positive and double-negative metamaterial slab waveguides are numerically analyzed and compared when varying the dielectric and magnetic constants. As the cutoff frequencies of both ...
  • 3D Metamaterial Based on a Regular Array of Resonant Dielectric Inclusions 

    Vendik, I.; Odit, M.; Kozlov, D. (Společnost pro radioelektronické inženýrství, 2009-06)
    The 3D regular lattice of bi-spherical dielectric resonant inclusions arranged in a cubic lattice as two sets of spheres made from the same dielectric material having different radii and embedded in a host dielectric ...
  • Miniaturization of Planar Microwave Devices by Means of Complementary Spiral Resonators (CSRs): Design of Quadrature Phase Shifters 

    Siso, G.; Gil, M.; Aranda, M.; Bonache, J.; Martin, F. (Společnost pro radioelektronické inženýrství, 2009-06)
    In this work, two compact quadrature phase shifters based on metamaterial transmission lines implemented by means of complementary spiral resonators (CSRs) have been designed, fabricated and measured. The structures consist ...
  • Directive Emission Obtained by Mu and Epsilon-Near-Zero Metamaterials 

    Yang, J.; Huang, M.; Peng, J. (Společnost pro radioelektronické inženýrství, 2009-06)
    In this work, we use Mu and Epsilon-Near-Zero (MENZ) metamaterials to realize the substrates that can modify the emission of an embedded line source. Simulation results show that the cylindrical waves emitted from the line ...
  • Modeling of Modified Split-Ring Type Defected Ground Structure and Its Application as Bandstop Filter 

    Parui, S. K.; Das, S. (Společnost pro radioelektronické inženýrství, 2009-06)
    The shape of a popular split-ring defected ground structure (DGS) is modified by selecting different width of the sides with respect to microstrip line. The frequency characteristics of proposed DGS unit show an attenuation ...
  • Analog Signal Processing in Transmission Line Metamaterial Structures 

    Gupta, S.; Caloz, C. (Společnost pro radioelektronické inženýrství, 2009-06)
    Several novel dispersion-engineered CRLH TL metamaterial analog signal processing systems, exploiting the broadband dispersive characteristics and design flexibility of CRLH TLs, are presented. These systems are either ...
  • An Efficient CS-CPWL Based Predistorter 

    Bruno, M.; Cousseau, J.; Werner, S.; Figueroa, J.; Cheong, M.; Wichman, R. (Společnost pro radioelektronické inženýrství, 2009-06)
    We study the performance of Hammerstein predistorters (PD) to model and compensate nonlinear effects produced by a high power amplifier with memory. A novel Hammerstein model is introduced that includes, as the basic static ...
  • Superconductor Microwave Kinetic Inductance Detectors: System Model of the Readout Electronics 

    Alimenti, F.; Ercoli, M.; Palazzari, V.; Roselli, L. (Společnost pro radioelektronické inženýrství, 2009-06)
    This paper deals with the readout electronics needed by superconductor Microwave Kinetic Inductance Detectors (MKIDs). MKIDs are typically implemented in the form of cryogenic-cooled high quality factor microwave resonator. ...
  • Multifrequency Printed Antennas Loaded with Metamaterial Particles 

    Segovia-Vargas, D.; Herraiz-Martinez, F. J.; Ugarte-Munoz, E.; Montero-De-Paz, J.; Gonzalez-Posadas, V.; Garcia-Munoz, L. E. (Společnost pro radioelektronické inženýrství, 2009-06)
    This paper provides a review of printed antennas loaded with metamaterial particles. This novel technique allows developing printed antennas with interesting features such as multifrequency (simultaneous operation over two ...
  • Some Advances in the Circuit Modeling of Extraordinary Optical Transmission 

    Medina, F.; Mesa, F.; Rodriguez-Berral, R. (Společnost pro radioelektronické inženýrství, 2009-06)
    The phenomenon of extraordinary optical transmission (EOT) through electrically small holes perforated on opaque metal screens has been a hot topic in the optics community for more than one decade. This experimentally ...

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