Information transmission by electromagnetic field
نویسندگان
چکیده
منابع مشابه
Electromagnetic Field Coupling to Transmission Lines Inside Rectangular Resonators
In this paper the current inside a cavity, which is induced by lumped and distributed sources, is calculated. The current is obtained analytically (Green’s function method) and numerically (MoM – and MLFMM – method). A long, parallel wire is chosen that connects two opposite walls of a rectangular resonator. Since the conductor conserves the translational symmetry of the resonator in one direct...
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Based on the transmission line approximation, three different equivalent formulations have been proposed for evaluating the interaction between an external electromagnetic field and a transmission line. The difference among these “coupling” formulations, which are summarized for the case of a lossless line, lies essentially in the representation of the source terms as a function of the external...
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It is well known that velocities does not commute in presence of an electromagnetic field. This property implies that angular algebra symmetries, such as the sO(3) and Lorentz algebra symmetries, are broken. To restore these angular symmetries we show the necessity of adding the Poincaré momentum M to the simple angular momentum L. These restorations performed succesively in a flat space and in...
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ژورنال
عنوان ژورنال: Information and Control
سال: 1966
ISSN: 0019-9958
DOI: 10.1016/s0019-9958(66)90074-x