Download e-book for iPad: Finite Antenna Arrays and FSS by Ben A. Munk

By Ben A. Munk

ISBN-10: 0471273058

ISBN-13: 9780471273059

A periodic floor is an meeting of exact parts prepared in a one or two-dimensional array. Such surfaces have a variety of results on incident electromagnetic waves. Their functions variety from antennas to stealth aircraft.This publication discusses finite antenna arrays and the way to reduce the radar pass component to those arrays."Ben has been the world-wide guru of this technology...Ben Munk has written a booklet that represents the epitomy of functional understanding." W. Bahret, usa Air ForceFrequency selective surfaces (FSSs) have very important army and civilian functions together with antenna conception, satellite tv for pc communications and stealth technologyAuthor is an authory at the topic, having been instrumental within the improvement of stealth know-how for the USA Air ForceMuch of the cloth during this booklet was once deemed labeled as a result of its value to defence

Show description

Read or Download Finite Antenna Arrays and FSS PDF

Similar electronics: radio books

Marie Curie and the science of radioactivity by Naomi Pasachoff PDF

Examines the lifetime of the Polish-born scientist who, together with her husband Pierre, was once offered a 1903 Nobel Prize for locating radium.

Mikhail K. Razmakhnin's Radar Made Easy PDF

At the present time, radar in a single shape or one other is probably going to show up all over: on the street, on the waterfront, in an underground motor-road. via some distance the widest use of radar is made through the army and scientists. In all of those fields millions upon hundreds of thousands of radar units are at paintings. a few of them are sufficiently small to be equipped into spectacles, others weigh hundreds of thousands of plenty.

Extra info for Finite Antenna Arrays and FSS

Sample text

COMMON MISCONCEPTIONS 11 While I will admit to some parametric observations where no specific theoretical background could be established right away, we are basically using an analytic approach1 that not only leads to a clear understanding of the problems but also establishes whether solutions exist and what they are. 2 On Radiation from Surface Waves This title will undoubtedly raise a few eyebrows. As stated in many respectable textbooks, surface waves do not radiate—period. What is not always emphasized is the fact that the theory for surface waves in general is based on a two-dimensional model like for example an infinitely long dielectric coated wire.

In other words, we are talking about two entirely different kinds of waves. Second, the term edge wave has been used by Ufimtsev and many others to denote waves that originate on the edges and propagate orthogonal to these all right [28]. However, that kind of edge wave dies down as you move away from the edge and their propagation constant is that of free space. The surface waves encountered here are basically not attenuated (except by radiation and ohmic losses) as they move away from the edge and propagate over the entire array.

The reflected power Prefl will now be radiated (or rather reradiated) by the antenna like any other signal impressed at its terminals. If the antenna had been isotropic, the power Prefl would at a distance r be uniformly distributed over a sphere with surface area 4πr 2 . Thus, the power density at distance r would be Prefl /4πr 2 . However, if the antenna has a gain Gr in the direction of radiation sˆr as shown in Fig. 4) where pr is the polarization mismatch factor between the scattering antenna and a receiving antenna located in the far field, that is, 0 ≤ pr ≤ 1.

Download PDF sample

Finite Antenna Arrays and FSS by Ben A. Munk

by Brian

Rated 4.85 of 5 – based on 14 votes