Poslední příspěvky

  • Dipole Array Excited by Slots in its Coaxial Feeder 

    Cernohorsky, D.; Novacek, Z. (Společnost pro radioelektronické inženýrství, 2001-12)
    A technical analysis of the coaxial dipole-array excited by periodically distributed slots in common coaxial feeder is presented. The lossy transmission-line theory is applied for determination of the current on all parts ...
  • Analysis of Aperture-coupled Microstrip Antenna Using Method of Moments 

    Farkas, T.; Hajach, P. (Společnost pro radioelektronické inženýrství, 2001-12)
    A microstrip patch antenna that is coupled to a microstripline by an aperture in the intervening ground plane is analyzed by using the method of moments. Integral equation is formulated by considering the exact dyadic ...
  • The Laboratory of Wireless and Mobile Communications 

    Hanus, S. (Společnost pro radioelektronické inženýrství, 2001-12)
    The paper presents the basic information about establishing of the laboratory for Mobile Communications on the Dept. of Radio Electronics, Brno University of Technology. This information allows to experts from the practice ...
  • Arbitrary Q-factor Dielectric Resonator 

    Hoffmann, K.; Sokol, V.; Skvor, Z. (Společnost pro radioelektronické inženýrství, 2001-12)
    New circuit component, active resonator, is proposed for use in microwave and millimetrewave circuits. It consists of a common resonator and an amplifier, compensating for losses in the resonator. Properly designed, such ...
  • Solenoid above Ground Plane - Equivalent Circuit 

    Hoffmann, K.; Vajtr, J. (Společnost pro radioelektronické inženýrství, 2001-12)
    Wide-band vector measurements of transmission structures formed by solenoids with 2, 4 and 6 turns above ground plane were performed in the frequency band 45 MHz to 18 GHz. Novel equivalent circuits of these structures ...
  • Ground Radar Target Classification Using Singular Value Decomposition and Multilayer Perceptron 

    Matousek, Z.; Kurty, J.; Mokris, I. (Společnost pro radioelektronické inženýrství, 2001-12)
    The paper deals with classification of ground radar targets. A received radar signal backscattered from a ground radar target was digitized and in the form of radar signal matrix utilized for a feature extraction based on ...
  • Neural Networks in Antennas and Microwaves: A Practical Approach 

    Raida, Zbyněk (Společnost pro radioelektronické inženýrství, 2001-12)
    Neural networks are electronic systems which can be trained to remember behavior of a modeled structure in given operational points, and which can be used to approximate behavior of the structure out of the training points. ...
  • Results of Indoor Propagation Measurement Campaign at 1900 MHz 

    Pechač, Pavel; Klepal, M.; Zvanovec, S. (Společnost pro radioelektronické inženýrství, 2001-12)
    For the design of indoor picocellular systems in the frequency band of 1800/2100 MHz, a signal propagation modelling is needed. Empirical and semi-empirical models represent an efficient approach to the coverage prediction. ...