Browsing 2015/3 by Title

Now showing items 1-20 of 27

  • Analysis of Minimal LDPC Decoder System on a Chip Implementation 

    Palenik, Tomas; Farkas, Peter; Rakus, Martin; Dobos, Jan (Společnost pro radioelektronické inženýrství, 2015-09)
    This paper presents a practical method of potential replacement of several different Quasi-Cyclic Low-Density Parity-Check (QC-LDPC) codes with one, with the intention of saving as much memory as required to implement the ...

  • Antenna Design for Semi-Passive UHF RFID Transponder with Energy Harvester 

    Jankowski-Mihulowicz, Piotr; Kawalec, Damian; Weglarski, Mariusz (Společnost pro radioelektronické inženýrství, 2015-09)
    A novel microstrip antenna which is dedicated to UHF semi-passive RFID transponders with an energy harvester is presented in this paper. The antenna structure designed and simulated by using Mentor Graphics HyperLynx 3D ...

  • Applications of Graphene at Microwave Frequencies 

    Bozzi, Maurizio; Pierantoni, Luca; Bellucci, Stefano (Společnost pro radioelektronické inženýrství, 2015-09)
    In view to the epochal scenarios that nanotechnology discloses, nano-electronics has the potential to introduce a paradigm shift in electronic systems design similar to that of the transition from vacuum tubes to semiconductor ...

  • A Compact 1:4 Lossless T-Junction Power Divider Using Open Complementary Split Ring Resonator 

    Phani Kumar, Kanaparthi V.; Karthikeyan, S. S. (Společnost pro radioelektronické inženýrství, 2015-09)
    This paper presents the size miniaturized and harmonic suppressed lossless 1:4 T-junction unequal power divider using an open complementary split ring resonator (OCSRR). By embedding the OCSRR structure in the microstrip ...

  • Compact and Wide Stopband Lowpass Filter Using Open Complementary Split Ring Resonator and Defected Ground Structure 

    Karthikeyan, S. S.; Kshetrimayum, Rakhesh Singh (Společnost pro radioelektronické inženýrství, 2015-09)
    A compact (0.16 λg x 0.08 λg) and wide stop¬band lowpass filter design using open complementary split ring resonator (OCSRR) and defected ground structure (DGS) is presented in this paper. Low pass filter is con-structed ...

  • Design and Synthesis of Quasi Dual-mode, Elliptic Coaxial Filter 

    Cheab, Sovuthy; Wong, Peng Wen (Společnost pro radioelektronické inženýrství, 2015-09)
    This article introduces the design of a novel quasi dual-mode, elliptic coaxial filter. The transfer function is mapped to a generalized Chebyshev prototype with symmetrically located transmission zeros (TZs) where the ...

  • A Lowpass Filter with Sharp Roll - off and High Relative Stopband Bandwidth Using Asymmetric High - Low Impedance Patches 

    Abdipour, Ashkan; Abdipour, Arash; Lotfi, Saeedeh (Společnost pro radioelektronické inženýrství, 2015-09)
    In this letter, a microstrip lowpass filter with -3 dB cut-off frequency at 1.286 GHz is proposed. By using two main resonators which are placed symmetrically around Y axis a sharp roll-off rate (250 dB/GHz) is obtained. ...

  • Model for Estimation of Bounds in Digital Coding of Seabed Images 

    Samcovic, Andreja (Společnost pro radioelektronické inženýrství, 2015-09)
    This paper proposes the novel model for estimation of bounds in digital coding of images. Entropy coding of images is exploited to measure the useful information content of the data. The bit rate achieved by reversible ...

  • Modeling the AgInSbTe Memristor 

    Yu, Juntang; Li, Yi; Mu, Xiaomu; Zhang, Jinjian; Miao, Xiangshui; Wang, Shuning (Společnost pro radioelektronické inženýrství, 2015-09)
    The AgInSbTe memristor shows gradual resistance tuning characteristics, which makes it a potential candidate to emulate biological plastic synapses. The working mechanism of the device is complex, and both intrinsic ...

  • Multi-Objective Synthesis of Filtering Dipole Array Based on Tuning-Space Mapping 

    Vsetula, Petr; Raida, Zbynek; Lacik, Jaroslav (Společnost pro radioelektronické inženýrství, 2015-09)
    In the paper, we apply tuning-space mapping to multi-objective synthesis of a filtering antenna. The antenna is going to be implemented as a planar dipole array with serial feeding. Thanks to the multi-objective approach, ...

  • New Concept of PLC Modems: Multi-Carrier System for Frequency Selective Slow-Fading Channels Based on Layered SCCC Turbocodes 

    Zavrtalek, Jan; Kekrt, Daniel; Hrad, Jaromir (Společnost pro radioelektronické inženýrství, 2015-09)
    The article introduces a novel concept of a PLC modem as a complement to the existing G3 and PRIME standards for communications using medium- or high-voltage overhead or cable lines. The proposed concept is based on the ...

  • A New Protocol for Cooperative Spectrum Sharing in Mobile Cognitive Radio Networks 

    Hosseini, Seyed Alireza; Abolhassani, Bahman; Sadough, Seyed Mohammad Sajad (Společnost pro radioelektronické inženýrství, 2015-09)
    To optimize the usage of limited spectrum resources, cognitive radio (CR) can be used as a viable solution. The main contribution of this article is to propose a new protocol to increase throughput of mobile cooperative ...

  • Novel Compact Three-Way Filtering Power Divider Using Net-Type Resonators 

    Pan, Wei-Qiang; Liu, Xiao-Feng; Zhao, Xiao-Lan (Společnost pro radioelektronické inženýrství, 2015-09)
    In this paper, we present a novel compact three-way power divider with bandpass responses. The proposed power divider utilizes folded net-type resonators to realize dual functions of filtering and power splitting as well ...

  • A Novel Cyclic Time to Digital Converter Based on Triple-Slope Interpolation and Time Amplification 

    Rezvanyvardom, Mahdi; Farshidi, Ebrahim (Společnost pro radioelektronické inženýrství, 2015-09)
    This paper investigates a novel cyclic time-to-digital converter (TDC) which employs triple-slope analog interpolation and time amplification techniques for digitizing the time interval between the rising edges of two input ...

  • Novel Planar Horn Antenna for 75/85 GHz Experimental Wireless Link 

    Puskely, Jan; Urbanec, Tomas; Mikulasek, Tomas; Raida, Zbynek; Rericha, Vaclav; Bartyzal, Jan (Společnost pro radioelektronické inženýrství, 2015-09)
    In the paper, we describe a novel H-plane horn antenna for an experi¬mental wireless link operating in frequency bands 71 to 76 GHz and 81 to 86 GHz. The horn antenna was designed considering a substrate integrated waveguide ...

  • Power Switching Protocol for Two-way Relaying Network under Hardware Impairments 

    Dinh-Thuan Do (Společnost pro radioelektronické inženýrství, 2015-09)
    In this paper, we analyze the impact of hardware impairments at relay node and source node (i.e. imperfect nodes) on network performance by evaluating outage probability based on the effective signal to noise and distortion ...

  • Precise Characterization and Multiobjective Optimization of Low Noise Amplifiers 

    Dobes, Josef; Michal, Jan; Popp, Jakub; Cerny, David; Grabner, Martin; Vejrazka, Frantisek; Kakona, Jakub; Matejka, Stepan (Společnost pro radioelektronické inženýrství, 2015-09)
    Although practically all function blocks of the satellite navigation receivers are realized using the CMOS digital integrated circuits, it is appropriate to create a separate low noise antenna preamplifier based on a low ...

  • A Quasi-Lumped Element Series Array Resonator Antenna 

    Olokede, Seyi Stephen (Společnost pro radioelektronické inženýrství, 2015-09)
    This paper presents a 6-element series array quasi-lumped element resonator antenna. The proposed antenna employs an interdigital capacitor in parallel with a straight strip conductor whose centre finger is shorted across ...

  • Space Alignment Based on Regularized Inversion Precoding in Cognitive Transmission 

    Yao, Rugui; Li, Geng; Xu, Juan; Wang, Ling; Zhang, Zhaolin (Společnost pro radioelektronické inženýrství, 2015-09)
    For a two-tier Multiple-Input Multiple-Output (MIMO) cognitive network with common receiver, the precoding matrix has a compact relationship with the capacity performance in the unlicensed secondary system. To increase the ...

  • Sparse Localization with a Mobile Beacon Based on LU Decomposition in Wireless Sensor Networks 

    Zhao, Chunhui; Xu, Yunlong; Huang, Hui (Společnost pro radioelektronické inženýrství, 2015-09)
    Node localization is the core in wireless sensor network. It can be solved by powerful beacons, which are equipped with global positioning system devices to know their location information. In this article, we present a ...