Now showing items 1-20 of 71

  • Design and Characterization of CMOS On-Chip Antennas for 60 GHz Communications 

    Titz, D.; Ben Abdeljelil, F.; Jan, S.; Ferrero, F.; Luxey, C.; Brachat, P.; Jacquemod, G. (Společnost pro radioelektronické inženýrství, 2012-04)
    In this paper, we present the design and the measurement of two antennas realized on a 130nm CMOS process. They both radiate in the 60 GHz band and are dedicated to Wireless Personal Area Network (WPAN) applications. The ...
  • Economic Galileo E5 Receiver 

    Kovar, P.; Kacmarik, P.; Vejrazka, F. (Společnost pro radioelektronické inženýrství, 2012-04)
    The Galileo system introduces an extremely wideband civil E5 signal for high precision navigation. The structure of the receiver for the E5 signal is complicated due to the signal complexity and the large bandwidth. It is ...
  • Current-Processing Current-Controlled Universal Biquad Filter 

    Singh, S. V.; Maheshwari, S. (Společnost pro radioelektronické inženýrství, 2012-04)
    This paper presents a current-processing current-controlled universal biquad filter. The proposed filter employs only two current controlled current conveyor transconductance amplifiers (CCCCTAs) and two grounded capacitors. ...
  • A 0.8 V T Network-Based 2.6 GHz Downconverter RFIC 

    Wu, J.-M.; Liou, C.-K.; Chuang, C.-J.; Kuo, Y. (Společnost pro radioelektronické inženýrství, 2012-04)
    A 2.6 GHz downconverter RFIC is designed and implemented using a 0.18 μm CMOS standard process. An important goal of the design is to achieve the high linearity that is required in WiMAX systems with a low supply voltage. ...
  • Current-mode Biquadratic Universal Filter Design with Two Terminal Unity Gain Cells 

    Alpaslan, H.; Yuce, E. (Společnost pro radioelektronické inženýrství, 2012-04)
    A grounded parallel lossy active inductor and two current-mode (CM) universal filters are presented in this paper. All the circuits use two voltage followers (VFs) and a current follower (CF). The parallel lossy active ...
  • Two-port Network Transfer Function for Power Line Topology Modeling 

    Mlynek, P.; Misurec, J.; Koutny, M.; Silhavy, P. (Společnost pro radioelektronické inženýrství, 2012-04)
    This paper deals with modeling of power line communication. A two-port network model is theoretically described and compared with measurement. A substantial part is focused on the mathematical description of distri¬bution ...
  • New Gain Controllable Resistor-less Current-mode First Order Allpass Filter and its Application 

    Jaikla, W.; Noppakarn, A.; Lawanwisut, S. (Společnost pro radioelektronické inženýrství, 2012-04)
    New first order allpass filter (APF) in current mode, constructed from 2 CCCCTAs and grounded capacitor, is presented. The current gain and phase shift can be electronically /orthogonally controlled. Low input and high ...
  • New CMOS Realization of Voltage Differencing Buffered Amplifier and Its Biquad Filter Applications 

    Kaçar, F.; Yeşil, A.; Noori, A. (Společnost pro radioelektronické inženýrství, 2012-04)
    In this paper, new biquad filter configuration using a recently introduced active element, namely Voltage Differencing Buffered Amplifier (VDBA), is proposed. This block has high impedance input terminals and low impedance ...
  • Voltage-Mode Highpass, Bandpass, Lowpass and Notch Biquadratic Filters Using Single DDCC 

    Chiu, W. Y.; Horng, J. W. (Společnost pro radioelektronické inženýrství, 2012-04)
    A new voltage-mode multifunction biquadratic filter using one differential difference current conveyor (DDCC), two grounded capacitors and three resistors is presented. The proposed circuit offers the following attractive ...
  • Novel Floating General Element Simulators Using CBTA 

    Ayten, U. E.; Sagbas, M.; Herencsar, N.; Koton, J. (Společnost pro radioelektronické inženýrství, 2012-04)
    In this study, a novel floating frequency dependent negative resistor (FDNR), floating inductor, floating capacitor and floating resistor simulator circuit employing two CBTAs and three passive components is proposed. The ...
  • Lossy/Lossless Floating/Grounded Inductance Simulation Using One DDCC 

    Ibrahim, M. A.; Minaei, S.; Yuce, E.; Herencsar, N.; Koton, J. (Společnost pro radioelektronické inženýrství, 2012-04)
    In this work, we present new topologies for realizing one lossless grounded inductor and two floating, one lossless and one lossy, inductors employing a single differential difference current conveyor (DDCC) and a minimum ...
  • Comments and Remarks over Classic Linear Loop-Gain Method for Oscillator Design and Analysis. New Proposed Method Based on NDF/RRT 

    Jimenez-Martin, J. L.; Gonzalez-Posadas, V.; Parra-Cerrada, A.; Garcia-Munoz, L. E.; Segovia-Vargaz, D. (Společnost pro radioelektronické inženýrství, 2012-04)
    Present paper describes a new method for designing oscillators based on the Normalized Determinant Function (NDF) and Return Relations (RRT ). First a review of the loop-gain method will be performed, showing pros, cons ...
  • Testing QoE in Different 3D HDTV Technologies 

    Slanina, M.; Kratochvil, T.; Ricny, V.; Bolecek, L.; Kaller, O.; Polak, L. (Společnost pro radioelektronické inženýrství, 2012-04)
    The three dimensional (3D) display technology has started flooding the consumer television market. There is a number of different systems available with different marketing strategies and different advertised advantages. ...
  • Overview of Parallel Platforms for Common High Performance Computing 

    Fryza, T.; Svobodova, J.; Adamec, F.; Marsalek, R.; Prokopec, J. (Společnost pro radioelektronické inženýrství, 2012-04)
    The paper deals with various parallel platforms used for high performance computing in the signal processing domain. More precisely, the methods exploiting the multicores central processing units such as message passing ...
  • Clutter Reduction Based on Principal Component Analysis Technique for Hidden Objects Detection 

    Kabourek, V.; Cerny, P.; Mazanek, M. (Společnost pro radioelektronické inženýrství, 2012-04)
    This paper brings a brief overview of the statistical method called Principal Component Analysis (PCA). It is used for clutter reduction in detection of hidden objects, targets hidden behind walls, buried landmines, etc. ...
  • In-system Jitter Measurement Based on Blind Oversampling Data Recovery 

    Kubicek, M.; Kolka, Zdeněk (Společnost pro radioelektronické inženýrství, 2012-04)
    The paper describes a novel method for simple estimation of jitter contained in a received digital signal. The main objective of our research was to enable a non-invasive measurement of data link properties during a regular ...
  • Two-Dimensional Forward Scattering – Comparisons of Approximate and Exact Solutions 

    Schejbal, V.; Svoboda, P.; Pidanic, J.; Fiser, O. (Společnost pro radioelektronické inženýrství, 2012-04)
    Various methods for analyses of scattering are mentioned and new approximate relationships are derived. Experimental results for thin wire and several numerical simulations of forward scattering using approximate estimations, ...
  • Correction of Thermal Deviations of Fabry-Perot Resonator Based Measurements of Specific Gases in Millimeter Wave Bands 

    Libich, J.; Dvorak, P.; Piksa, P.; Zvanovec, S. (Společnost pro radioelektronické inženýrství, 2012-04)
    Due to the thermal expansivity of the material used in the Fabry-Perot resonator mirrors, the resonator cavity length can change and this might therefore have an impact on the resonant frequency during high-resolution ...
  • Measurement of the Structure Constant of Refractivity at Optical Wavelengths Using a Scintillometer 

    Grabner, M.; Kvicera, V. (Společnost pro radioelektronické inženýrství, 2012-04)
    The structure constant of the atmospheric refractive index is used for characterizing the turbulence strength and for predicting the scintillation of electromagnetic waves in atmosphere. It is measured continuously in ...
  • Novel Compact and High Selectivity Dual-band BPF with Wide Stopband 

    Wang, L.; Guan, B.-R. (Společnost pro radioelektronické inženýrství, 2012-04)
    A novel type of compact and high selectivity dual-band bandpass filter (BPF) incorporating a dual-mode defected ground structure resonator (DDGSR) and a dual-mode open-stub loaded stepped impedance resonator (DOLSIR) is ...