Log periodic bow-tie antennas (LPA) design using the transmission line model
A transmission line model is used to design log periodic of bow-tie antennas arrays operating in C band fed in series with enhanced bandwidth. The transmission line model is simple, precise and allowing taking into account the whole geometrical, electric.
Подобные документы
Motion along a straight line. The displacement of a particle is a vector quantity. The magnitude of the force. Kinetic energy and work. Potential energy and conservation of energy. Center of mass and linear momentum. Rolling, torque and angular momentum.
тест, добавлен 03.04.2012Study of the optical characteristics of the nano-optical structure of the antenna. Need to design the antenna in nano-scale for the visible part of the optical spectrum. The dependence of the enhanced field created by the nanoantenna, on its structure.
автореферат, добавлен 05.11.2018Study of spectral characteristics of layered chiral media using the method of matrix distribution. The calculation of the coefficients of transmission and reflection of linearly polarized electromagnetic wave on the structure of planar chiral layers.
статья, добавлен 29.07.2016- 54. Design of control signals for three phase matrix converter on the basis of double fourier series
The control signals for the frequency-phase matrix converter. The output control signal converters, on the basis of the expansion of space with the space. Methods of using the double Fourier series expansion of space and time independent variable.
статья, добавлен 22.03.2016 Life and Atoms. When the atom gets excited. Energy of the Photon. Energy Level Diagrams. Emission Line Spectra. Notation & Isotopes. Energy Unit Check. Alpha Decay Applications. Positron emission tomography. Gamma Decay Applications. Fission Bomb.
реферат, добавлен 16.10.2012Actual trends in development of power system protection and automation. Identification of circuit parameters of power network elements. The proof of applicability of power line parameters identification algorithm. Synchrophasor application tasks.
статья, добавлен 23.06.2013Characterization of the advantages of applying passive energy saving in design solutions for the construction of an energy-efficient university library (low initial investment and maintenance costs). Recommendations for building a sustainable library.
статья, добавлен 30.09.2021The design and the performance of the Ionization Beam Profile Monitor. operating on the residual gas ionization principle. Stability the IBPM is prospective for beam profile due to long time non-contact method monitoring, stable operation in emergencies.
статья, добавлен 02.09.2013Electric currents and their properties. Units of electricity and measuring devices. The construction and the principle of operation electric machines. Application of generators and their parallel operation. Types of Motors and their distinctive.
учебное пособие, добавлен 06.03.2015Investigation of the possibility of constructing relay protection in transient processes. Calculation of the single-phase short-circuit transient of the L-398 "Monchegorsk" line and the possibility of using an adaptive relay protection terminal.
статья, добавлен 30.04.2018- 61. Birthday Balloon
Description of the mathematical model of the rubber ball with the long form of the cylinder (except the ends) with a mouthpiece. Isothermal process of inflating the ball at room temperature while neglecting the weight of the container and gravity.
лекция, добавлен 26.05.2014 The review for different devices: Infrared sensor arrays for thermal imaging on active Si read-out chips, resonant cavity enhanced IR detectors, quantum well lasers on Si substrates and "wavelength transformers", structures operated in sub-threshold.
статья, добавлен 28.06.2013- 63. Birthday Balloon
Description of the mathematical model of the distribution of the forces acting on a long balloon. An analytical scheme for solving the problem of changing the volume over time, constructed a function with the analysis of three aspects of transition.
лекция, добавлен 26.05.2014 The derivative expansion of the QED effective action as a divergent but Borel summable asymptotic series, for a particular inhomogeneous background magnetic eld. A non-Borel-summable perturbative series for a time dependent background electric eld.
статья, добавлен 09.09.2012The synergetic model of boundary friction - the system of equations for the stress, strain and temperature, describing the nontrivial behavior of the ultra thin lubricant film. The influence of shear modulus deformation defect on hysteresis phenomena.
статья, добавлен 30.07.2016The model for 6Li nucleus is used to study the structure properties of this system within the variational method with Gaussian basis. The description of the elastic S-phases at low energies simultaneously with correct values of the binding energy.
статья, добавлен 19.09.2013Characteristic features of the effect of noise on the power and polarization characteristics of semiconductor lasers within the scope of our earlier model which considers polarization switching. Research and analysis of results of numerical simulation.
статья, добавлен 29.01.2016The results of experimental studies of physical mechanisms of energy dissipation in the oscillating system in which air cavity held by the forces of magnetic levitation. Limitation of applicability of Helmholtz equation, caused by boundary effect.
статья, добавлен 13.10.2016The convergence process of the heavy ions in the fusion-fission reactions. Three collective state parameters of the total system: the quadrupole deformations of the target nucleus and the incoming ion and the distance between their centers of mass.
статья, добавлен 19.09.2013- 70. Fractal Continual Model of Matter for Classification of Nanostructures, Clusters and Massive Bodies
Study of physical-chemical properties of the clusters. The fractal conception of the essence of the a theory of vibrations of crystal lattices and the resulting thermodynamics of solids. Investigation of the optimal heat capacity of nanostructures.
статья, добавлен 30.07.2016 - 71. Optimal control of mutual impact of electric grids for the reduction of their electric energy losses
Mathematical models and algorithms of determination of power losses in an inhomogeneous electric networks caused of their interaction. A way to reduce these losses by means of linear regulators that are installed in the electric networks of low voltage.
статья, добавлен 29.06.2016 Pulsed cathodoluminescence of zinc tungstate samples, doped with europium. Influence of crystal size on the spectral and kinetic parameters of oxygen luminescence within the model of self-organization of the nanodefects in the process of growing crystals.
статья, добавлен 09.12.2014Компьютерное моделирование в программе Source-Model Technique Package (SMTP), структуры ИК-световодов и распределения световодных мод по сечению световода с помощью эффективных показателей преломления. Измерение свойств кристаллов и ИК световодов.
автореферат, добавлен 14.08.2018To gain knowledge about the ionosphere structure at mid- and high latitudes and create modern ionosphere and thermosphere models - the task of the incoherent scatter radar. Problem of the creation of reliable theoretical ionosphere region F2 model.
статья, добавлен 30.10.2016Исследование системы векторного управления скоростью асинхронного двигателя, построенной на основе принципа прогнозирующей модели (Model Predictive Control). Управление скоростью (моментом), потокосцеплением ротора и токами двигателя в данной системе.
статья, добавлен 29.06.2017