Download or read book Frequency Independent Antennas written by Victor H. Rumsey and published by Academic Press. This book was released on 2014-06-28 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: Frequency Independent Antennas provides a reasonably complete coverage of frequency independent antennas from its inception until the middle of 1965. Most of the contents have not previously been published, except in scattered journal articles, and some are original. The first six chapters are written at a fairly easy level—about the level of a beginning graduate student or the more advanced undergraduate. The last two chapters, which deal with solutions of Maxwell's equations, are at a somewhat higher level. The book opens with a discussion of some fundamental ideas about antennas. It shows how typical measurements can be understood in terms of classical electromagnetic theory: in other words, how to make sense of measured data, how to set up apparatus to get meaningful data, and how to test their significance. Separate chapters follow on the features of frequency independent, plane-sheet, spiral, and log-periodic antennas. Subsequent chapters discuss how the periodic structure theory provides a way of understanding the peculiarities of frequency independent antennas; and solutions of Maxwell's equations for idealized spiral and idealized sinusoidal structures.

Download or read book Frequency Independent Antennas written by Victor Henry Rumsey and published by . This book was released on 1957 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Frequency Independent Antennas written by Thomas Tameo Sugimoto and published by . This book was released on 1960 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study of Frequency independent Antennas written by Victor Henry Rumsey and published by . This book was released on 1963 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Frequency Independent Antenna with Parasitic Elements written by William Habicht and published by . This book was released on 1968 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modern Antenna Design written by Thomas A. Milligan and published by John Wiley & Sons. This book was released on 2005-07-08 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical book written for engineers who design and use antennas The author has many years of hands on experience designing antennas that were used in such applications as the Venus and Mars missions of NASA The book covers all important topics of modern antenna design for communications Numerical methods will be included but only as much as are needed for practical applications

Download or read book An Omnidirectional Frequency Independent Antenna written by James Roy Jenkins and published by . This book was released on 1963 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Log periodic Antennas written by Nicholas P. Kernweis and published by . This book was released on 1975 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book STUDY OF FREQUENCY INDEPENDENT ANTENNAS written by V. H. RUMSEY and published by . This book was released on 1961 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made of frequency-independent antenn fro the point of view of designing the antennas for any radiation pattern and polarization. Solutions of Maxwell's equations were discovered which explain the theory of fr uency independent antennas. The effect of curvatur on the current distribution is strikingly demonstrated but the most remarkable feature is the incoming current wave at large distances, when the angular phase velocity of the excitation is in the direction of decreasing radius along an equiangular spiral. Solutions for periodic antennas were also obtained and extensive computations are being made. (Author).

Download or read book Frequency Independent Antennas Multimode Comparison written by Kyle Andrew Zeller and published by . This book was released on 2011 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Solution to the Frequency Independent Antenna Problem written by B. R. Cheo and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: A solution of Maxwell's equations is obtained for an antenna consisting of an infinite number of equally spaced wires in the form of coplanar equiangular spirals. Radiation amplitude patterns obtained from this solution agree closely with measurements on two-element spiral antennas. The phase pattern shows the approximate validity of a phase center at a distance behind the antenna which decreases with the tightness of the spiral. The current distribution clearly shows increased attenuation with increase in the tightness of the spiral thus showing how the frequency-independent mode depends on the curvature. A remarkable feature of the solution is that the current consists of an inward traveling wave at infinity when the antenna is excited in that sense which produces an outward wave at the center. (Author).

Download or read book A Sinuous Flush mounted Frequency independent Antenna written by J. K. Shimizu and published by . This book was released on 1959 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Antenna Analysis in General with Specific Reference to Frequency Independent Antennas written by Victor Henry Rumsey and published by . This book was released on 1959 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report on Research in Frequency Independent Antennas written by Diogenes J. Angelakos and published by . This book was released on 1965 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physical Design and Examples of Application of Frequency independent Antennas written by Hans-Joachim Fischer and published by . This book was released on 1964 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: A number of new antennas that possess a band width wider than 4:1 at medium gain while maintaining a comparatively steady radiation pattern have recently become known. From among the multitude of geometrical configurations that have been proposed, described here is the logarithmic periodic broad-band antenna. Following a brief introduction dealing with the forms taken by broad-band antennas, this report considers the logarithmic-periodic dipole antenna in its various modifications. The discussion includes dimensioning and limits of application.

Download or read book Antenna Analysis and Design Using FEKO Electromagnetic Simulation Software written by Atef Z. Elsherbeni and published by SciTech Publishing. This book was released on 2014 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book combines theory with practical applications for the analysis and design of a wide variety of antenna configurations simulated on FEKO, the leading real-world commercial software programme.

Download or read book Fundamentals of Antennas written by Christos G. Christodoulou and published by SPIE Press. This book was released on 2001 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation This tutorial explains antenna theory and operation and is intended for students, engineers, and researchers. Basic wire antennas and array antennas are described in detail and other types are introduced, including reflectors, lenses, horns, microstrip, Yagi, and frequency-independent antennas.