• Shielded Micro-Coplanar CRLH TL Zeroth-Order Resonator Antenna: Critical Performance Evaluation 

    Polivka, M.; Vrba, D. (Společnost pro radioelektronické inženýrství, 2009-12)
    The attention of this paper is focused on the four unit cell zeroth-order resonator antenna (ZORA), manufactured on a shielded micro-coplanar composite right/left-handed (CRLH) transmission line structure. The antenna was ...
  • State-of-the-Art System Solutions for Unmanned Underwater Vehicles 

    Yildiz, O.; Yilmaz, A. E.; Gokalp, B. (Společnost pro radioelektronické inženýrství, 2009-12)
    Unmanned Underwater Vehicles (UUVs) have gained popularity for the last decades, especially for the purpose of not risking human life in dangerous operations. On the other hand, underwater environment introduces numerous ...
  • Study of a Miniaturized Quasi-Self-Complementary UWB Antenna in Frequency and Time Domain 

    Guo, L.; Chen, X.; Parini, C. (Společnost pro radioelektronické inženýrství, 2009-12)
    A compact antenna for UWB communication systems has been realized by employing a quasi-selfcomplementary structure together with a triangular notch on microstrip feed line in this paper. The optimal design of this type of ...
  • Traction Permanent Magnet Synchronous Motor Torque Control with Flux Weakening 

    Dolecek, R.; Novak, J.; Cerny, O. (Společnost pro radioelektronické inženýrství, 2009-12)
    The paper deals with analysis of dynamic behavior of a feedback flux weakening control of PMSM traction drive for light vehicles. The PMSM flux weakening is very important for traction drives. Two torque control structures ...
  • Two-Element PIFA Array Structure for Polarization Diversity in UMTS Mobile Phones 

    Ferrero, F.; Diallo, A.; Luxey, C.; Derat, B.; Hamouz, P.; Hazdra, P.; Rahola, J. (Společnost pro radioelektronické inženýrství, 2009-12)
    In this paper, we demonstrate the possibility to strongly modify the radiated fields of a UMTS handset by using a phased two-element PIFA array. The structure is composed of a 100x40 mm2 metallic ground plane acting as the ...
  • An Ultra-Low-Voltage and Ultra-Low-Power 2.4 GHz LNA Design 

    Liu, B.; Wang, C.; Ma, M.; Guo, S. (Společnost pro radioelektronické inženýrství, 2009-12)
    In this paper, ultra-low-voltage and ultra-low-power circuit techniques are presented for CMOS RF front-ends. By employing a modified current-reused architecture, the low-noise amplifier (LNA) can operate at a very low ...
  • Utilization of Birefringent Fiber as Sensor of Temperature Field Disturbance 

    Dvorak, F.; Maschke, J.; Vlcek, C. (Společnost pro radioelektronické inženýrství, 2009-12)
    The paper deals with utilization of induced birefringence sensitivity to temperature field in birefringent optical fibers. The propagating optical wave and optical fibers are described by means of coherency and Jones ...