By Le Nguyen Binh

ISBN-10: 1439847533

ISBN-13: 9781439847534

Wireless communications enable high-speed cellular entry to an international net in keeping with ultra-wideband spine intercontinental and terrestrial networks. either one of those environments aid the wearing of data through electromagnetic waves which are instant (in unfastened air) or guided via optical fibers. Wireless and Guided Wave Electromagnetics: basics and Applications explores the basic elements of electromagnetic waves in instant media and stressed out guided media. this can be a vital topic for engineers and physicists operating with conversation applied sciences, cellular networks, and optical communications.

This entire book:

  • Builds from the fundamentals to trendy themes in electromagnetics for instant and optical fiber communication
  • Examines instant radiation and the guiding of optical waves, that are an important for sporting high-speed details in long-reach optical networking scenarios
  • Explains the actual phenomena and sensible features of guiding optical waves that won't require distinctive electromagnetic solutions
  • Explores purposes of electromagnetic waves in optical communique platforms and networks according to frequency area move capabilities within the linear areas, which simplifies the actual complexity of the waves yet nonetheless lets them be tested from a approach engineering perspective
  • Uses MATLAB® and Simulink® types to simulate and illustrate the electromagnetic fields
  • Includes labored examples, laboratory routines, and challenge units to check understanding

The book’s modular constitution makes it appropriate for quite a few classes, for self-study, or as a source for examine and improvement. all through, the writer emphasizes matters quite often confronted via engineers. Going a step past conventional electromagnetics textbooks, this ebook highlights particular makes use of of electromagnetic waves with a spotlight at the instant and optical applied sciences which are more and more very important for high-speed transmission over very lengthy distances.

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Additional resources for Wireless and Guided Wave Electromagnetics: Fundamentals and Applications

Example text

The dot • is the vector dot product. , a vector with magnitude equal to the length of the infinitesimal line element, and direction given by the tangent to the curve C). • ∫∫ denotes an integral over the surface S enclosed by the curve C (the S double integral sign is meant simply to denote that the integral is twodimensional in nature. • JC is the free current density through the surface S enclosed by the curve C. • dS is the vectorial differential area of an infinitesimal element of the surface S (that is, a vector with magnitude equal to the area of the infinitesimal surface element, and direction normal to surface S).

42 Wireless and Guided Wave Electromagnetics c. Sketch the source voltage VS as a function of time. A lossless transmission line with a source impedance of 50 Ω, a characteristic impedance of 50 Ω, and a length of 1500 m is terminated in a 25 Ω impedance. The source impedance is 50 Ω. The line has a forward traveling voltage wave V+(x – vpt) on it such that V+(0, t) = 0 V, t ≤ 0 V+(0, t) = 5 V, 0 < t < 2 μs V+(0, t) = 0 V, t ≥ 2 μs vp = 200 m/μs is the propagation velocity in the line a. Sketch the voltage on the line at times t = 2, 4, 6, 8, and 10 μs.

F. When the matching was successful, how far from the load reference position was the end of the quarter-wave transformer closest to the load? g. What were the impedances of the resistive load that was matched and the quarter-wave transformer that matched it? h. What is the function of the short-circuit stub, and why did it need to be tuned at each new frequency of measurement? Sketch the schematic of an experimental setup that you may use for the study of slotted line transmission property with an operating frequency of 900 MHz.

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Wireless and Guided Wave Electromagnetics: Fundamentals and Applications by Le Nguyen Binh


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