Download e-book for iPad: Antenna Theory & Design by Robert S. Elliott

By Robert S. Elliott

ISBN-10: 0471449962

ISBN-13: 9780471449966

A vintage Reissue within the IEEE Press sequence on Electromagnetic Wave conception —Donald G. Dudley, sequence Editor

"Beautifully and obviously written and of the top technical quality." -Dr. Robert J. Mailloux, AFRL/SNH

"A vintage paintings within the box. there are lots of distinct descriptions of key electromagnetic innovations mentioned during this textual content that aren't discovered at any place else. the writer is among the best researchers during this box. a lot of his scholars also are best researchers during this box. this article has been utilized by a few of the senior antenna engineers in industry." -Kathleen L. Virga, college of Arizona, Tucson

First released in 1981, Robert S. Elliott's Antenna thought and layout is without doubt one of the most important works in electromagnetic concept and purposes. In its broad-ranging, analytic remedy, replete with helping experimental facts, Antenna thought and layout conveys primary tools of study that may be used to foretell the electromagnetic habit of approximately every thing that radiates. After greater than twenty years, it continues to be a key source for college students, professors, researchers, and engineers who require a complete, in-depth remedy of the topic.

based on requests from a lot of our contributors, IEEE is now reissuing this vintage. Newly revised, it once more should be a useful textbook and an everlasting reference for training engineers.

The IEEE Press sequence on Electromagnetic Wave concept deals impressive assurance of the sector. It involves new titles of latest curiosity in addition to reissues and revisions of famous classics by way of tested authors and researchers. The sequence emphasizes works of long term archival value in electromagnetic waves and purposes. Designed particularly for graduate scholars, researchers, and working towards engineers, the sequence offers reasonable volumes that discover and clarify electromagnetic waves past the undergraduate point.

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Is a unit vector in the radial direction and 77 = ( p , / ~ , )=' 377 ~ ~ ohms is the impedance of free space. The transverse part of A is AT = l,Ae t 1,A,. 6) @(8, $) 1 = Tale(E x H*) It is customary to call that part of the radiation pattern associated with E, the 8polarizedpattern, or the vertically polarizedpattern, and to call that part of the radiation pattern associated with E# the $-polarized pattern, or the horizontally polarized pattern. 98), it can be seen that these two patterns are given by the functions Often one is interested only in the relative power densities being radiated in different directions (8, $), in which case the factor i[k2q/(4nr)2]can be suppressed.

103g). 103f then lead to from which with O and cD, called the electric and magnetic scalar potential functions, respectively. 10) and the solutions for F and @, are obviously similar. If the electric and magnetic sources are confined to reside in surfaces, then lineal current densities K amperes per meter and K, magnetic amperes per meter replace J and J,. In like manner, the areal charge densities p, coulombs per square meter and p,, magnetic coulombs per square meter replace p and p,. The potential functions are then given by Suppose one desires to find the values that these surface sources should have in order to give a specified electromagnetic field external to S but a null field within S.

A. Stratton and L. J. -Chu, "Diffraction Theory of Electromagnetic Waves," Phys. , 56 (1939), 99-107. Also, see the excellent treatment in S. Silver, Microwave Antenna Theory and Design, MIT Rad. Lab. Series, Vol. , 1939), pp. 80-9. The present development is a reproduction, with permission, of what appears in R. S. , 1966), pp. 272-80 and 534-8, and differs from Silver's treatment principally in the nonuse of fictitious magnetic currents and charges. 7 The Stratton-Chu Solut~on and letting A If A = = G and B F while B == = V x G, one obtains V x F, then When the difference in these results is integrated over the volume V, one obtains If 1, is chosen to be the inward-drawn unit normal vector from any boundary surface Siinto the volume V, use of the divergence theorem gives This result is the vector Green's theorem.

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