scholarly journals Teaching Innovation and Exploration of Electromagnetic Field and Electromagnetic Wave Course

Author(s):  
Hui Zhang ◽  
Dan Ren ◽  
Jing Dai ◽  
Zhili Chen
1990 ◽  
Vol 68 (10) ◽  
pp. 1122-1125 ◽  
Author(s):  
Nicolae Marinescu ◽  
Rudolf Nistor

The paper gives a formal analogy between the distribution of the electromagnetic field in a wave guide and microwave cavities and the quantum-mechanical probabilities distribution. We show that the wave guide of the cutoff frequency ωc acts on an electromagnetic wave as a quantum potential barrier [Formula: see text]. We also establish a nonhabitual time-independent Schrödinger equation that replaces Maxwell's equations in describing guided wave propagation.


1990 ◽  
Vol 45 (8) ◽  
pp. 953-957 ◽  
Author(s):  
Nicolae Marinescu ◽  
Rudolf Nistor

AbstractThe formal analogy between the distribution of the electromagnetic field in waveguides and microwave cavities and quantum mechanical probability distributions is put into evidence. A waveguide of a cut-off frequency ωc acts on an electromagnetic wave as a quantum potential barrier Ug = hωc. A non-habitual time independent Schrödinger equation, describing guided wave propagation, is established


2014 ◽  
Vol 931-932 ◽  
pp. 1477-1481 ◽  
Author(s):  
Alongorn Promtee ◽  
Churairatchinda Akkanit

This research aims to develop instruction model using cognitive learning theories on electromagnetic field and wave for undergraduate of electrical engineering program. The new instruction model called FATAC model was developed. It consists of 5 steps as; 1) Find 2) Adjust 3) Teach 4) Actions and 5) Conclusion. The content of dissertation has 3 Units; 1) Maxwell equations and electromagnetic wave are direct variation with time 2) Microwave planar and 3) Poynting vector and wave propagation. Thirty students of level 3 in technical education, rajamangala university of technology isan, khonkaen campus were a sampling group. Tools of dissertation included lesson plans, learning media as powerpoint presentation, electromagnetic wave propagation simulation program, wave propagation demonstration set, and filed strength meter. The research results consisted of; 1) The opinion on the FATAC model was high level (=4.21,S.D.=0.48). 2) The learning effectiveness of the instructional model was 76.15/76.73 (higher than 75/75 of the hypothesis). 3) The quality of instruction package by experts was high level (=4.27 ,S.D=0.62) and 4) The mean of satisfaction of the sampling group was high level (=4.23 ,S.D=0.57). Therefore, in conclusion, instruction model using cognitive learning theories on electromagnetic wave and propagation for undergraduate of electrical engineering program can be applied for electromagnetic theory subject and high efficiency.


2020 ◽  
Author(s):  
Wim Vegt

Within the scope of this article, LIGHT has been considered as any arbitrary Electromagnetic Radiation within a very wide frequency range, because during the transformation from Visible Light into the Gravitational Electromagnetic Confinement, the frequency changes in a very wide range. This frequency transformation is possible because of the combined Lorentz / Doppler-Effect transformation during the collapse (contraction) of the radiation when the Gravitational Electromagnetic Confinement has been formed (Implosion of Visible Light). Within the scope of this article MATTER is considered to be any kind of 3-dimensional confined (Electromagnetic) energy. The inner structure of a photon is based on a 3-dimensional anisotropic equilibrium within the electromagnetic pulses in which an equilibrium does exist for the Electric and the Magnetic Fields separately generated by the pulses. A photon cannot be considered as a particle. Because particles are 3-dimensional confinements. Photons are anisotropic (in 1st and 2nd dimension a particle and in the 3rd dimension a wave) confinements of electromagnetic pulses, generated during the energy transitions within the atoms. Photons are 2-dimensional confinements of electromagnetic energy and demonstrate the property of inertia (electromagnetic mass) in the 2 directions of confinement. In the 3rd direction, the direction of propagation, photons can only be considered as an electromagnetic wave and for that reason do not demonstrate the property of inertia. Electromagnetic waves cannot be accelerated or decelerated because the speed of light is a universal constant. For that reason, photons interact with a gravitational field in an anisotropic way. Due to a gravitational field, photons can be accelerated or decelerated in the directions perpendicular to the direction of propagation and follow a curved path. But a gravitational field in the direction of propagation will have no impact on the speed of the photons, which will remain the unchanged universal constant, the speed of light. Photonics is the physical science of light based on the concept of “photons” introduced by Albert Einstein in the early 20th century. Einstein introduced this concept in the “particle-wave duality” discussion with Niels Bohr to demonstrate that even light has particle properties (mass and momentum) and wave properties (frequency). That concept became a metaphor and from that time on a beam of light has been generally considered as a beam of particles (photons). Which is a wrong understanding. Light particles do not exist. Photons are nothing else but electromagnetic complex wave configurations and light particles are not like “particles” but separated electromagnetic wave packages, 2-dimensionally confined in the directions perpendicular to the direction of propagation and in a perfect equilibrium with the radiation pressure and the inertia of electromagnetic energy in the forward direction, controlling the speed of light. This new theory will explain how electromagnetic wave packages demonstrate inertia, mass and momentum and which forces keep the wave packages together in a way that they can be measured like particles with their own specific mass and momentum. All we know about light, and in generally about any electromagnetic field configuration, has been based only on two fundamental theories. James Clerk Maxwell introduced in 1865 the “Theory of Electrodynamics” with the publication: “A Dynamical Theory of the Electromagnetic Field” and Albert Einstein introduced in 1905 the “Theory of Special Relativity” with the publication: “On the Electrodynamics of Moving Bodies” and in 1913 the “Theory of General Relativity” with the publication ”Outline of a Generalized Theory of Relativity and of a Theory of Gravitation”. However, both theories are not capable to explain the property of electromagnetic mass and in specific the anisotropy of the phenomenon of electromagnetic mass presented e.g. in a LASER beam. To understand what electromagnetic inertia and the corresponding electromagnetic mass is and how the anisotropy of electromagnetic mass can be explained and how it has to be defined, a New Theory about Light has to be developed. A part of this “New Theory about Light”, based on Newton’s well- known Equation in 3 dimensions will be published in this article in an extension into 4 dimensions. Newton’s 4-dimensional law in the 3 spatial dimensions results in an improved version of the classical Maxwell equations and Newton’s law in the 4th dimension (time) results in the quantum mechanical Schrödinger wave equation (at non-relativistic velocities) and the relativistic Dirac equation.


2019 ◽  
Author(s):  
Paolo Di Sia

All great religions have used the light as a symbol of transcendence andcharacteristic of divinity, have spoken on “the divine spark that is in us”. Light indicates life; the symbol of light pervades the Bible from the first to the last page, it is the principle of creation. God has been called in various ways, but the light is the metaphor used to talk about His nature. From the point of view of physics, the light is an electromagnetic wave; the electromagnetic force is one of the four fundamental forces known today. In quantum theories of consciousness, this one is considered a fundamental property of the universe. Recent insights consider our physical universe as appeared by a phase-like transition from a universe with 10 space-time dimensions.Consciousness would be created by the electromagnetic field in relation to the SU(6) x U(1) symmetry group. The human brain is conceived as an interface organ that receivesinformation, an element of interference from incoming data and already existing data (thesubject’s memory).


2019 ◽  
Author(s):  
Paolo Di Sia

All great religions have used the light as a symbol of transcendence andcharacteristic of divinity, have spoken on “the divine spark that is in us”. Light indicates life; the symbol of light pervades the Bible from the first to the last page, it is the principle of creation. God has been called in various ways, but the light is the metaphor used to talk about His nature. From the point of view of physics, the light is an electromagnetic wave; the electromagnetic force is one of the four fundamental forces known today. In quantum theories of consciousness, this one is considered a fundamental property of the universe. Recent insights consider our physical universe as appeared by a phase-like transition from a universe with 10 space-time dimensions. Consciousness would be created by the electromagnetic field in relation to the SU(6) x U(1) symmetry group. The human brain is conceived as an interface organ that receives information, an element of interference from incoming data and already existing data (the subject’s memory).


2019 ◽  
Vol 28 (01) ◽  
pp. 1950009 ◽  
Author(s):  
Valeria Kurseeva ◽  
Stanislav Tikhov ◽  
Dmitry Valovik

The paper focuses on a problem that describes propagation of transverse-electric (TE) waves in a plane dielectric waveguide filled with nonlinear medium. The nonlinearity is characterized by the power term [Formula: see text], where [Formula: see text], [Formula: see text] are constants and [Formula: see text] is the electric term of the guided electromagnetic field. The layer is located between two half-spaces filled with linear media having constant permittivities. It is proved that the nonlinear problem has infinitely many propagation constants (PCs), whereas the corresponding linear problem has only a finite number of them. The nonlinearity leads to the occurrence of infinitely many nonperturbative solutions of the nonlinear problem. Results of the paper show that the power nonlinearity (for any [Formula: see text]) and Kerr nonlinearity (for [Formula: see text]) produce qualitatively similar outcomes. In addition, the found results allow one to study very important cases of quintic, septimal, etc. nonlinear permittivities in the focusing regime.


Author(s):  
O. L. Sidorchuk

The article proposes an improved mathematical apparatus for studying the amplitudes of the electromagnetic field scattered by an antenna system with a horn feed of pyramidal shape, which is located at the focus of the paraboloid of rotation using the Credo-type ground-based intelligence stations (1RL133). Improvement of the apparatus consists in applying a new method for determining the scattered electromagnetic field reemitted by the irradiator located at the focus of the paraboloid of rotation of the antenna system during normal polarization of the incident plane wave in its plane of incidence, as well as coincidence of the wave and its plane of incidence as a superposition of an arbitrary incidence. The task includes two components: determination of the electromagnetic field in the plane of the focus of the paraboloid of rotation with an arbitrary plane electromagnetic wave falling on it and finding the electromagnetic field scattered from the circular polarization horn feed of the polarized paraboloid with an arbitrary plane electromagnetic wave falling on it. The materials presented in the article and previously received by the author combine the case of an arbitrary fall of an electromagnetic wave, which is a superposition of two cases: the wave is polarized normally to the plane of incidence; coincidence of the polarization of the wave and the plane of its fall. Calculations using the new method will allow evaluating the effect of various elements placed in the plane of focus on the scattering of antenna systems as a whole in any case of a wave falling on a mirror. The construction of radar stations based on a parabolic antenna calculated using a new method will allow one to gain significant advantages over traditional single-polarization radar stations when detecting objects with a small effective dispersion surface and to highlight their information signs.


Sign in / Sign up

Export Citation Format

Share Document