Now showing items 1-20 of 23

  • Microwave Diplexer Purely Based on Direct Synchronous and Asynchronous Coupling 

    Nwajana, A. O.; Yeo, K. S. K. (Společnost pro radioelektronické inženýrství, 2016-06)
    A diplexer realized purely based on direct coupling is presented. No cross-coupling is involved in the design process. The microwave diplexer is achieved by coupling a dual-band bandpass filter onto two individual channel ...
  • Miniaturized Dual-Band Aperture Coupled Microstrip Antenna Using Corrugated Ground 

    Li, M.; Qin, K.; He, H. (Společnost pro radioelektronické inženýrství, 2016-06)
    A novel dual-band aperture coupled microstrip antenna with corrugated ground plane is proposed to improve radiation performance in this letter. The dual-band operation is obtained by embedding a S-shaped slot in the radiating ...
  • Reduction of EMC Emissions in Mixed Signal Integrated Circuits with Embedded LIN Driver 

    Hartl, P.; Kuban, M.; Horsky, P. (Společnost pro radioelektronické inženýrství, 2016-06)
    This paper describes several methods for reduction of electromagnetic emissions (EME) of mixed signal integrated circuits (IC). The focus is on the impact that a LIN bus communication block has on a complex IC which contains ...
  • Improvement of Reading Performance of Frequency-Domain Chipless RFID Transponders 

    Havlicek, J.; Svanda, M.; Machac, J.; Polivka, M. (Společnost pro radioelektronické inženýrství, 2016-06)
    This review paper presents the summary of our investigations in several topics of frequency-domain chipless RFID transponders. The performance comparison of various types of scatterers used in the literature and recently ...
  • Properties of Siloxane Based Optical Waveguides Deposited on Transparent Paper and Foil 

    Prajzler, V.; Hyps, P.; Mastera, R.; Nekvindova, P. (Společnost pro radioelektronické inženýrství, 2016-06)
    In this paper, we present the properties of flexible planar optical waveguides made of siloxane-based polymer deposited on Xerox transparent paper and PLEXIGLAS foil substrate. Measurement of optical properties such as the ...
  • Novel CMOS Bulk-driven Charge Pump for Ultra Low Input Voltage 

    Nagy, G.; Arbet, D.; Stopjakova, V.; Kovac, M. (Společnost pro radioelektronické inženýrství, 2016-06)
    In this paper, a novel bulk-driven cross-coupled charge pump designed in standard 90 nm CMOS technology is presented. The proposed charge pump is based on a dynamic threshold voltage inverter and is suitable for integrated ...
  • Triangle/Square Waveform Generator Using Area Efficient Hysteresis Comparator 

    Drinovsky, M.; Hospodka, J. (Společnost pro radioelektronické inženýrství, 2016-06)
    A function generator generating both square and triangle waveforms is proposed. The generator employs only one low area comparator with accurate hysteresis set by a bias current and a resistor. Oscillation frequency and ...
  • Grey Box Non-Linearities Modeling and Characterization of a BandPass BAW Filter 

    Mabrouk, M.; Boujemaa, M. A.; Choubani, F. (Společnost pro radioelektronické inženýrství, 2016-06)
    In this work, the non-linearities of a 3G/UMTS geared BandPass Bulk Acoustic Wave ladder filter composed of five resonators were modeled using non-linear modified Butterworth-Van Dyke model. The non-linear characteristics ...
  • High-Precision CMOS Analog Computational Circuits Based on a New Linearly Tunable OTA 

    Naderi Saatlo, A. (Společnost pro radioelektronické inženýrství, 2016-06)
    Implementation of CMOS current-mode analog computational circuits are presented in this paper. A new Linearly Tunable OTA is employed in a modified structure as a basic building block for implementation of the circuits ...
  • Reconfigurable Plasma Antenna Array by Using Fluorescent Tube for Wi-Fi Application 

    Ja’afar, H.; Ali, M. T.; Dagang, A. N.; Ibrahim, I. P.; Halili, N. A.; Zali, H. M. (Společnost pro radioelektronické inženýrství, 2016-06)
    This paper presents a new design of reconfigurable plasma antenna array using commercial fluorescent tube. A round shape reconfigurable plasma antenna array is proposed to collimate beam radiated by an omnidirectional ...
  • Performance of a Cognitive Relay Network under AF Relay Selection Scheme with Imperfect Channel Estimation 

    Prasad, B.; Roy, S. D.; Kundu, S. (Společnost pro radioelektronické inženýrství, 2016-06)
    In this paper outage performance of a secondary user (SU) is evaluated under amplify and forward (AF) relay selection scheme with an imperfect channel state information (CSI)while sharing spectrum in an underlay cognitive ...
  • Ultra-Broad Band Radar Cross Section Reduction of Waveguide Slot Antenna with Metamaterials 

    Qiang Fu; Cheng-Li Fan; Si-Jia Li; Gang Wang; Xiang-Yu Cao (Společnost pro radioelektronické inženýrství, 2016-06)
    To reduce the radar cross section of a waveguide slot antenna, a three-layer metamaterial is presented based on orthogonal double split-ring resonators. The absorption characteristics of three-layer metamaterial are ...
  • A Low-Dropout Voltage Regulator with a Fractional-Order Control 

    Kadlcik, L.; Horsky, P. (Společnost pro radioelektronické inženýrství, 2016-06)
    This paper presents a 5 V / 50 mA low-dropout voltage regulator (LDO). The LDO uses a fractional-order control for its regulation loop to achieve a high DC gain (for a tight DC regulation) while avoiding (for a good ...
  • A Compact Multiband BPF Using Step-impedance Resonators with Interdigital Capacitors 

    Meesomklin, S.; Chomtong, P.; Akkaraekthalin, P. (Společnost pro radioelektronické inženýrství, 2016-06)
    A compact multiband band-pass filter design for applications of GSM, Wi-MAX and WLAN systems is presented. The design is based on the resonant characteristics of step-impedance and interdigital capacitor resonators with ...
  • Improved Asymptotic Capacity Lower Bound for OFDM System with Compressed Sensing Channel Estimation for Bernoulli Gaussian Channel 

    Pejoski, S.; Kafedziski, V. (Společnost pro radioelektronické inženýrství, 2016-06)
    We propose an improved capacity lower bound for OFDM system with compressed sensing channel estimation for Bernoulli-Gaussian channel. We improve the known capacity lower bound which is based on Lasso compressed sensing ...
  • Micro-Doppler Effect of Extended Streamlined Targets Based on Sliding Scattering Centre Model 

    Bo Tang (Společnost pro radioelektronické inženýrství, 2016-06)
    The scattering center of extended streamlined targets can slide when the direction of radiation is changed. The sliding scattering center has influence on the micro-Doppler effect of micro-motion of the extended streamlined ...
  • Design of 12-phase, 2-stage Harmonic Rejection Mixer for TV Tuners 

    Lee, D.; Jeong, H.; Lee, M. (Společnost pro radioelektronické inženýrství, 2016-06)
    A two-stage 12-phase harmonic rejection mixer (HRM) for TV tuners is proposed in order to reject the local oscillator (LO) harmonics up to the ninth order. The proposed weighing scheme for 12-phase, 2-stage harmonic mixing ...
  • Frequency Agile Radial-Shaped Varactor-Loaded Reflectarray Cell 

    Venneri, F.; Costanzo, S.; Di Massa, G.; Borgia, A.; Raffo, A. (Společnost pro radioelektronické inženýrství, 2016-06)
    An equivalent circuit approach is adopted in this paper to analyze a novel varactor loaded phasing line, specifically designed to improve the frequency agility features of reconfigurable aperture-coupled reflectarray cell, ...
  • Segmentation of Moving Object Using Background Subtraction Method in Complex Environments 

    Kumar, S.; Yadav, J. S. (Společnost pro radioelektronické inženýrství, 2016-06)
    Background subtraction is an extensively used approach to localize the moving object in a video sequence. However, detecting an object under the spatiotemporal behavior of background such as rippling of water, moving curtain ...
  • k-Nearest Neighbors Algorithm in Profiling Power Analysis Attacks 

    Martinasek, Z.; Zeman, V.; Malina, L.; Martinasek, J. (Společnost pro radioelektronické inženýrství, 2016-06)
    Power analysis presents the typical example of successful attacks against trusted cryptographic devices such as RFID (Radio-Frequency IDentifications) and contact smart cards. In recent years, the cryptographic community ...