• Regularized Image Reconstruction for Ultrasound Attenuation Transmission Tomography 

    Peterlik, I.; Jirik, R.; Ruiter, N.; Jan, J. (Společnost pro radioelektronické inženýrství, 2008-06)
    The paper is focused on ultrasonic transmission tomography as a potential medical imaging modality, namely for breast cancer diagnosis. Ultrasound attenuation coefficient is one of the tissue parameters which are related ...
  • Simplified Frame and Symbol Synchronization for 4–CPFSK with h=0.25 

    Bobula, M.; Danek, K.; Prokes, A. (Společnost pro radioelektronické inženýrství, 2008-06)
    This paper examines the problem of rapid frame and symbol synchronization techniques intended particularly for constant envelope modulation formats M–CPFSK with modulation index h=1/M which are used in strictly bandwidth ...
  • Elimination of Thermally Generated Charge in Charged Coupled Devices Using Bayesian Estimator 

    Svihlik, J.; Pata, P. (Společnost pro radioelektronické inženýrství, 2008-06)
    This paper deals with advanced methods for elimination of thermally generated charge in astronomical images, which were acquired by a Charged Coupled Device (CCD) sensor. There exist a number of light images acquired by ...
  • Contactless Area Measurement (Contactless Planimeter) 

    Ricny, V.; Stancik, P. (Společnost pro radioelektronické inženýrství, 2008-06)
    The paper describes the designed hardware and software systems (so-called planimeters) for contactless measurement of areas (eventually geometric distances between two selected points) of planar projections of various ...
  • The Use of the Fluorescence to the Study of the Water Quality 

    Estebanez, B.; Gutierrez-Rios, J.; Vassallo-Saco, J.; Tazon, A.; Vassallo-Sanz, J. (Společnost pro radioelektronické inženýrství, 2008-06)
    We present a work proposal now in course that is based on the study of the fluorescence in cyanobacteria and toxicity, and the possibility of detecting their presence in freshwater environment, with a direct application ...
  • Small H-shaped Shorted Patch Antennas 

    Bonefacic, D.; Rapinac, B. (Společnost pro radioelektronické inženýrství, 2008-06)
    Four H-shaped shorted patch antennas with reduced dimensions are developed by using several techniques for size reduction of patch antennas. Step-by-step approach shows the obtainable reduction in size. All antennas are ...
  • Analysis of Highly Directive Cavity-Type Configurations Comprising of Low Profile Antennas Covered by Superstrates 

    Farahat, N.; Mittra, R.; Lugo, K.; Ma, L.; Gomez, R. A. (Společnost pro radioelektronické inženýrství, 2008-06)
    In this paper we present a technique for designing antenna/superstrate composites to produce enhanced directivities. As a first step, we study the underlying mechanism that governs the performance of theses antennas by ...
  • Simple and Low-Cost Realization of RDS Encoder 

    Sisul, G.; Modlic, B.; Cvitkovic, M. (Společnost pro radioelektronické inženýrství, 2008-06)
    This paper presents a simple and easy way of realization of RDS encoder. Autonomous equipment which is capable to generate wanted data stream, modulate that data stream and mixed generated signal with stereo or mono FM ...
  • Wide-Angle X-Band Antenna Array with Novel Radiating Elements 

    Chernobrovkin, R.; Ivanchenko, I.; Ligthart, L. P.; Korolev, A.; Popenko, N. (Společnost pro radioelektronické inženýrství, 2008-06)
    An antenna array with wide-angle beam steering is presented in this paper. The antenna consists of dielectrically filled open-ended waveguides with a new type of excitation as individual radiators. The characteristics of ...
  • Local Positioning Services on IEEE 802.11 Networks 

    Vegni, A. M.; Di-Nepi, A.; Neri, A.; Vegni, C. (Společnost pro radioelektronické inženýrství, 2008-06)
    This paper deals with localization services in IEEE 802.11 networks, for indoor environment. The proposed solution processes the Time Of Arrival of location packets sent by a Mobile Terminal, that makes access in a IEEE ...
  • Terminal Antennas in ACE2 

    Martinez-Vazquez, M.; Serrano, R.; Carlsson, J.; Skrivervik, A. K. (Společnost pro radioelektronické inženýrství, 2008-06)
    The ACE Network of Excellence was a European Commission funded Network of Excellence, which lasted from 2004 to 2007. One of the activities performed by this Network was in the frame of terminal antennas. In this activity, ...
  • User Interaction with Inverted-F Antennas Integrated into Laptop PCMCIA Cards 

    Guterman, J.; Moreira, A. A.; Peixeiro, C.; Rahmat-Samii, Y. (Společnost pro radioelektronické inženýrství, 2008-06)
    This paper evaluates the overall laptop integration effects on the performance of commercial 2.4 GHz Inverted-F antennas built into PCMCIA cards. A generic laptop model is used to represent the antenna housing effects while ...
  • Diversity and MIMO Performance Evaluation of Common Phase Center Multi Element Antenna Systems 

    Papamichael, V.; Karaboikis, M.; Soras, C.; Makios, V. (Společnost pro radioelektronické inženýrství, 2008-06)
    The diversity and Multiple Input Multiple Output (MIMO) performance provided by common phase center multi element antenna (CPCMEA) systems is evaluated using two practical methods which make use of the realized active ...
  • MIMO Capacity Estimation at 2 GHz with a Ray Model in Urban Cellular Environment 

    Vergerio, S.; Rossi, J. P.; Sabouroux, P. (Společnost pro radioelektronické inženýrství, 2008-06)
    MIMO technology promises a linear increase of capacity in function of the minimum antenna number at the transmitter and at the receiver. In order to test if these performances can be actually met in mobile communications, ...
  • Fiber-Optic Vibration Sensor Based on Multimode Fiber 

    Lujo, I.; Klokoc, P.; Komljenovic, T.; Bosiljevac, M.; Sipus, Z. (Společnost pro radioelektronické inženýrství, 2008-06)
    The purpose of this paper is to present a fiberoptic vibration sensor based on the monitoring of the mode distribution in a multimode optical fiber. Detection of vibrations and their parameters is possible through observation ...
  • Broadband SHF Direction-Finder 

    Radionov, S.; Ivanchenko, I.; Korolev, A.; Popenko, N. (Společnost pro radioelektronické inženýrství, 2008-06)
    The original design of the compact broadband direction-finder is presented in this paper. The cylindrical monopole antenna serves as a primary source of the reflector- type antenna. \"Zero-amplitude\" technique is used for ...
  • Enhanced Coupling Values in Coupled Microstrip Lines using Metamaterials 

    Lauro, S. E.; Toscano, A.; Vegni, L. (Společnost pro radioelektronické inženýrství, 2008-06)
    In this paper, we show how metamaterials can be used to enhance the coupling values of microstrip directional couplers. Coupling between regular coplanar microstrip lines, in fact, is limited, due to the small ratios between ...
  • Terminal Antenna Design 

    Skrivervik, A. K.; Zurcher, J. F. (Společnost pro radioelektronické inženýrství, 2008-06)
    This paper introduces first some general considerations about antenna miniaturization and multi-band terminal antenna design. These general design principles are then illustrated on some practical applications.
  • THz Wave Propagation on Strip Lines: Devices, Properties, and Applications 

    Kadoya, Y.; Onuma, M.; Yanagi, S.; Ohkubo, T.; Sato, N.; Kitagawa, J. (Společnost pro radioelektronické inženýrství, 2008-06)
    We report the propagation characteristics of THz pulses on micro-strip-lines and coplanar strip-lines, in which low permittivity polymer materials are used as the dielectric layer or the substrate. As a result of the low ...
  • Patch Antenna Based on Metamaterials for a RFID Transponder 

    Ugarte-Munoz, E.; Herraiz-Martinez, F. J.; Gonzalez-Posadas, V.; Segovia-Vargas, D. (Společnost pro radioelektronické inženýrství, 2008-06)
    In this paper a self-diplexed antenna is proposed for a RFID transponder application. The development cycle is divided into two stages: antenna design and filters design. The antenna is based on a square microstrip patch ...