A Plane Wave Expansion Theorem for Cylindrically Radiated Fields
A Plane Wave Expansion Theorem for Cylindrically Radiated Fields
Samuel Karp
The book A Plane Wave Expansion Theorem for Cylindrically Radiated Fields was written by author Samuel Karp Here you can read free online of A Plane Wave Expansion Theorem for Cylindrically Radiated Fields book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Plane Wave Expansion Theorem for Cylindrically Radiated Fields a good or bad book?
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In this respect again our result differs from the more usual expansion theorem, which proceeds in inverse powers of r. h. It is convenient to bear in mind that the functions v"- ^ (O) really contain the new coordinates x and y. For example , ^, ik(x cos6 + y sinS) v(Oj = e . J I-/ -11- 5. v(0) = e vW (0) ikx ikye ikx _ dv(p)| ^^ P=0 / vl2J(0) = ik[-x + iky^J 2t ikx d V e = — dp 3=0. , etc. A), Consider for example the expanGion of the function H (kr). We have i(kr4)" nf ^(^^ - J^ ^ 1+ 0(i) r r—... > 00 Hence f(0) h 1, f (e) = - . Applying (2a) we find l(M-f) ikx e + Jiik[-x-Hky]e ^. 2_ i(^ jtkd ^ v(0) + |rj^^ (y(0) + W'-2J(o)) + Uv^^^fO)) + We shall now explain, in brief, how the expansion theorem may be employed in calciilating the diffraction of an arbitrary radiating field. In such a calculation the function f (S) for the incident radiation will be known. The incident radiation will then be represented in the form (2a), in a coordinate system x, y fixed in the neighborhood of the scatterer.
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