Now showing items 1-20 of 678

    • Approximate method for hand computation of nonlinear distortion performance of varactor tuning circuits 

      Abuelma'atti M.T. (1986)
      The nonlinear distortion performance of varactor tuning circuits excited by an arbitrary number of input sinusoids with arbitrary amplitudes is analysed using an exponential series representation of the charge/voltage ...
    • Two new minimum-component wien-bridge oscillators using current-conveyors 

      Abuelma�atti M.T., Humood N.A. (1987)
      Two new Wien-bridge oscillator circuits are presented. The circuits use the minimum number of active and passive components. The circuits enjoy low sensitivities, and are attractive for integration. Experimental results ...
    • Two Minimum Component CCII-Based RC Oscillators 

      Abuelma'Atti M.T. (1987)
      Two minimum-component RC-sinusoidal oscillator Circuits using current conveyors are proposed. Each circuit uses a single current conveyor, two resistors, and two capacitors. The two circuits enjoy low sensitivity ...
    • Hard limiter amplitude modulators and demodulators 

      Abuelma�atti M.T., Almansoury W.A. (1987)
      The response of an ideal hard limiter to an input consisting of a multisinusoidal signal plus gaussian noise is considered. The feasibility of using devices exhibiting the ideal hard limiter characteristic for amplitude ...
    • Identification of two-amplifier active-R sinusoidal oscillators 

      Abuelmaatti M.T., Almansoury W.A. (1987)
      Using a unified representation for the 2-amplifier active-R oscillators, new circuits of this class of oscillators can be discovered systematically. The experimental results obtained from six new circuits are presented in ...
    • Saturation effects in three-phase induction motors 

      Akbaba M., Fakhro S.Q. (1987)
      An analytical method for the calculation of the effect of magnetic saturation on the leakage reactance of three-phase induction motors is developed and confirmed by experiment. The method is based on assuming an equivalent ...
    • Research note: A new OTA-based active-C oscillator 

      Abuelma�atti M.T., Almaskati R.H. (1987)
      A new resistorless active-C OTA-based oscillator is presented. The circuit uses four OTAs and two capacitors. The oscillation frequency can be electronically tuned without affecting the condition of oscillation. The circuit ...
    • Modelling DC characteristics of MOSFET 

      Abuelma'atti M.T. (1987)
      An empirical formula is presented for the current-voltage characteristics of the metal oxide semiconductor field effect transistor (MOSFET). The three parameters of the formula can be calculated easily from separate regions ...
    • Two-minimum-component single current conveyor RC oscillators 

      Abuelma�atti M.T. (1987)
      Two minimum-component RC-sinusoidal oscillator circuits using current conveyors are presented. Each circuit uses a single current conveyor, two resistors and two capacitors. The two circuits enjoy low sensitivities. � 1987, ...
    • Nonlinear distortion performance of narrow stripe-geometry lasers 

      Abuelma'atti M.T. (Kluwer Academic Publishers-Plenum Publishers, 1988)
      Using the theoretical normalised current-light characteristic of a narrow stripe-geometry laser, an empirical formula is developed for the normalised light-current characteristic. Using this formula, closed-form expressions, ...
    • Research note two novel voltage(current) controlled integrable oscillators 

      Abuelma�atti M.T., Almaskati R.H. (1988)
      Two novel voltage(current) controlled oscillator circuits are presented. Each circuit uses a single operational amplifier, a single operational transconductance amplifier, and either a single resistor or a single capacitor. ...
    • A note on the intermodulation performance of SCPC satellite links using a dominant carrier 

      Abuelma'atti M.T. (1988)
      The intermodulation performance of satellite links using a dominant carrier side-by-side with many small SCPC/FDMA carriers is considered. Closed-form expressions which are easy to evaluate are obtained for the amplitudes ...
    • On the Prediction of Transmission Errors of MOSFET Switches 

      Abuelma'atti M.T. (1988)
      A simple formula is presented for the impedance error of a MOSFET-resistor transmission gate. Using this formula, closed-form expressions are derived for the output products resulting from switching sinusoidal input signals. ...
    • Spectral response of nonlinear magnetic conductors 

      Abuelma'atti M.T. (1988)
      A general procedure for predicting the amplitudes of the magnetic induction components, resulting from multisinusoidal excitation of a nonlinear magnetic conductor, is presented. The magnetisation curve of the magnetic ...
    • A note on the nonlinear distortion performance of the Mach-Zehnder electro-optic modulator 

      Abuelma'atti M.T. (Kluwer Academic Publishers-Plenum Publishers, 1988)
      A generalised large voltage analysis is presented for the Mach-Zehnder modulator and closed-form expressions are derived for the output harmonics and intermodulation products. Results obtained previously, for small voltages, ...
    • Harmonic and intermodulation distortion in condenser microphones 

      Abuelm'atti M.T. (1988)
      A simple formula is presented for the input-output characteristic of the condenser microphone. Also, a closed-form expression is derived for the output voltage of a condenser microphone excited by a multitone acoustic input ...
    • Optimum design of nonlinear space trusses 

      Saka M.P. (1988)
      The structural optimization algorithms developed in recent years mainly consider the elastic behaviour of structures. The reserve of resisting loads in nonlinear regions is totally ignored. The optimum design algorithm ...
    • A note on the harmonic distortion in ac-bias recording 

      Abuelma'atti M.T. (1988)
      A new analytical expression for approximating the error function erf (x) is presented. Using this expression, analytical closed-form expressions are obtained for the overall record and playback nonlinear distortion resulting ...
    • Contribution to the study of solar radiation in Abu Dhabi 

      Abdalla Y.A.G., Feregh G.M. (1988)
      Measurements of global solar radiation for 10 yr in Abu Dhabi are used to examine the suitability of a method of prediction of global solar radiation. It shows a good degree of accuracy. A correlation between the clearness ...
    • Modelling Current/Voltage Characteristics of Space-Charge-Limited Currents with Nonlinear Velocity-Field Relationships 

      Abuelma'Atti M.T. (1988)
      A simple empirical equation is presented to describe the current/voltage characteristic of space-charge-limited currents in semiconductor materials with a nonlinear velocity- field relationship. The equation covers the ...