Now showing items 1-20 of 41

  • Antenna Arrays for Tactical Communication Systems: A Comparative Study 

    Bartyzal, J.; Bostik, T.; Kovacs, P.; Mikulasek, T.; Puskely, J.; Raida, Zbyněk; Slama, L.; Vorek, J.; Wolansky, D. (Společnost pro radioelektronické inženýrství, 2011-12)
    In this paper, we give a comparative study of several planar antenna concepts for reliable long range links in a tactical environment. The antenna elements are studied in terms of their electrical properties (bandwidth, ...
  • Multi-objective Synthesis of Antennas from Special and Conventional Materials 

    Raida, Zbyněk; Kadlec, P.; Kovacs, P.; Lacik, J.; Lukes, Z.; Pokorny, M.; Vsetula, P.; Wolansky, D. (Společnost pro radioelektronické inženýrství, 2011-12)
    In the paper, we try to provide a comprehensive look on a multi-objective design of radiating, guiding and reflecting structures fabricated both from special materials (semiconductors, high-impedance surfaces) and conventional ...
  • A Novel Multi-Objective Self-Organizing Migrating Algorithm 

    Kadlec, P.; Raida, Zbyněk (Společnost pro radioelektronické inženýrství, 2011-12)
    In the paper, a novel stochastic Multi-Objective Self Organizing Migrating Algorithm (MOSOMA) is introduced. For the search of optima, MOSOMA employs a migration technique used in a single-objective Self Organizing Migrating ...
  • Miniature Sensor Node with Conformal Phased Array 

    Vandenbosch, G. A. E.; Vasylchenko, A.; Fernandez-Bolanos, M.; Brebels, S.; De Raedt, W.; Ionescu, A. M. (Společnost pro radioelektronické inženýrství, 2011-12)
    This paper reports on the design and fabrication of a fully integrated antenna beam steering concept for wireless sensor nodes. The conformal array circumcises four cube faces with a silicon core mounted on each face. Every ...
  • Error Probability in Redundant Packet Sending over IP Network 

    Stanić, M.; Lebl, A.; Mitić, D.; Markov, Z. (Společnost pro radioelektronické inženýrství, 2011-12)
    In this paper we calculate error probability of packetized signal when method of redundant packet sending is used in IP network. The number of repeated signaling packets from each interval of packetization is determined ...
  • Analysis and Simulation of the Transmission Distortions of the Mobile Digital Television DVB-SH Part 1: Terrestrial Mode DVB-SH-A with OFDM 

    Polak, L.; Kratochvil, T. (Společnost pro radioelektronické inženýrství, 2011-12)
    This paper deals with the latest digital TV standard DVB-SH (Digital Video Broadcasting - Satellite to Handhelds) with focus on utilization of its advantages for the next generation of mobile TV broadcasting. The whole ...
  • Efficient Algorithm for Power Allocation in Relay-based Cognitive Radio Network 

    Ferdous, N.; Ahmed, M.; Matin, M. A.; Habiba, U. (Společnost pro radioelektronické inženýrství, 2011-12)
    This paper addresses a cognitive radio (CR) network scenario where a relay is assigned to mitigate interference to primary users (PUs). We develop an average probability of successful secondary transmission (PSST) to ...
  • A Low Cost Platform for Sensor Network Applications and Educational Purposes 

    Dikovic, A.; Sisul, G.; Modlic, B. (Společnost pro radioelektronické inženýrství, 2011-12)
    In this paper we describe the design, key features and results obtained from the development of a generic platform usable for sensor network applications operational in the ISM band. The goal was to create an open source ...
  • Realization of Resistorless Wave Active Filter using Differential Voltage Current Controlled Conveyor Transconductance Amplifier 

    Pandey, N.; Kumar, P. (Společnost pro radioelektronické inženýrství, 2011-12)
    In this paper, a resistorless realization of high order voltage mode wave active filter based on Differential Voltage current controlled conveyor transconductance amplifier (DVCCCTA) is presented. The wave method is used ...
  • An Automatic Technique for MRI Based Murine Abdominal Fat Measurement 

    Tang, Y.; Simerly, R.; Moats, R. A. (Společnost pro radioelektronické inženýrství, 2011-12)
    Because of the well-known relationship between obesity and high incidence of diseases, fat related research using mice models is being widely investigated in preclinical experiments. In the present study, we developed a ...
  • Millimeter-Waves Structures on Benzocyclobutene Dielectric Substrate 

    Costanzo, S.; Borgia, A.; Venneri, I.; Di Massa, G. (Společnost pro radioelektronické inženýrství, 2011-12)
    The need of low-loss substrate materials with stable dielectric performances is a strong requirement when working at millimeter frequencies, where standard dielectrics exhibit prohibitive losses. In this paper, the authors ...
  • Faraday Rotation Correction for Passive Microwave Remote Sensing from Space 

    Lu, W.; Yan, W.; Han, D.; Zhao, X. B. (Společnost pro radioelektronické inženýrství, 2011-12)
    Faraday rotation (FR) is one of the main error sources for passive microwave remote sensing from space especially in frequencies less than or equal to 10.7 GHz. In this paper, Faraday rotation correction for the vertical ...
  • Characterization of a Plain Broadband Textile PIFA 

    Soh, P. J.; Vandenbosch, G. A. E.; Ooi, S. L.; Nurul, H. M. R. (Společnost pro radioelektronické inženýrství, 2011-12)
    Bandwidth characteristic of a wearable antenna is one of the major factors in determining its usability on the human body. In this work, a planar inverted-F antenna (PIFA) structure is proposed to achieve a large bandwidth ...
  • A New Method For Increasing the Accuracy of EM-based Channel Estimation 

    Sadough, S. M. S.; Modarresi, M. (Společnost pro radioelektronické inženýrství, 2011-12)
    It was recently shown that the detection performance can be significantly improved if the statistics of channel estimation errors are available and properly used at the receiver. Although in pilot-only channel estimation ...
  • A Simplified Geometric Channel Model for Mobile-to-Mobile Communications 

    Baltzis, K. B. (Společnost pro radioelektronické inženýrství, 2011-12)
    In Mobile-to-Mobile (M2M) communications, the communicating nodes are surrounded by scatterers and equipped with low elevation antennas. This paper proposes a simple 2-D geometric scattering model for M2M channels. The ...
  • Circularly-Polarized Discrete Lens Antennas in the 60-GHz Band 

    Dussopt, L.; Kaouach, H.; Lanteri, J.; Sauleau, R. (Společnost pro radioelektronické inženýrství, 2011-12)
    This paper presents the design and demonstration of two circularly-polarized transmit-arrays operating in the 60-GHz band and generating a broadside beam and a 30°-tilted beam respectively. These arrays have a fairly simple ...
  • Meandered Monopoles for 700 MHz LTE Handsets and Improved MIMO Channel Capacity Performance 

    Dioum, I.; Clemente, M.; Diallo, A.; Luxey, C.; Rossi, J. P.; Farssi, S. M. (Společnost pro radioelektronické inženýrství, 2011-12)
    In this paper, we present the design and the measurement of MIMO meandered monopole antennas and the computation of their channel capacity performance. The initial proposed handset-system is composed of a meandered monopole ...
  • Miniaturized Microstrip Filter Design Using Active Learning Method 

    Rezaee, P.; Tayarani, M.; Knochel, R. (Společnost pro radioelektronické inženýrství, 2011-12)
    Relating coupling and external quality factor of a filter to the physical parameters of the structure which is the final step of any filter design is usually complicated due to geometrical complexities of the filter, or ...
  • An S-FSCW Based Multi-Channel Reader System for Beamforming Applications using Surface Acoustic Wave Sensors 

    Pfeffer, C.; Scheiblhofer, S.; Feger, R.; Stelzer, A. (Společnost pro radioelektronické inženýrství, 2011-12)
    Interrogating multiple surface acoustic wave (SAW) sensors located within the same radar beam require techniques to separate the multiple superposing SAW sensor responses. The presented multi-channel reader features four ...
  • High-Input Impedance Voltage-Mode Multifunction Filter Using a Single DDCCTA and Grounded Passive Elements 

    Tangsrirat, W.; Channumsin, O. (Společnost pro radioelektronické inženýrství, 2011-12)
    In this paper, a novel single-input three-output (SITO) second-order multifunction active voltage filter with high-input impedance is proposed. The proposed circuit is based on using the recently reported active building ...