Electrically small antennas for reception of FM broadcast transmission.
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چکیده
منابع مشابه
SMALL ANTENNAS Basic Principles of Electrically Small Antennas
E lectrically small antennas have been an important part of communications engineering since the beginning. Whether they are small compared to the extremely long wavelengths used at the lowest radio frequencies, or intended to save space in GHz-range wireless devices, the basic principles are the same. This tutorial will review those principles, with primary attention to describing the performa...
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A metamaterial paradigm for achieving an efficient, electrically small antenna is introduced. Spherical shells of homogenous, isotropic negative permittivity (ENG) material are designed to create electrically small resonant systems for several antennas: an infinitesimal electric dipole, a very short center-fed cylindrical electric dipole, and a very short coaxially-fed electric monopole over an...
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Where you can find the transmission and reception with multiple antennas theoretical foundations easily? Is it in the book store? On-line book store? are you sure? Keep in mind that you will find the book in this site. This book is very referred for you because it gives not only the experience but also lesson. The lessons are very valuable to serve for you, that's not about who are reading this...
متن کاملOptimization of the Bandwidth of Electrically Small Planar Antennas
The bandwidth limitations of resonant, electrically small antennas that fully occupy a spherical volume are well defined by the inverse of the Chu-limit or the lower bound on quality factor. Recently, Gustafsson et al developed lower bounds for the Q of antennas of arbitrary shape. We have previously described antenna designs fully occupying a spherical volume and a cylindrical volume that exhi...
متن کاملTopology Optimization of Metamaterial-based Electrically Small Antennas
A topology optimized metamaterial-based electrically small antenna configuration that is independent of a specific spherical and/or cylindrical metamaterial shell design is demonstrated. Topology optimization is shown to provide the optimal value and placement of a given ideal metamaterial in space to maximize far-field radiated power.
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ژورنال
عنوان ژورنال: The Journal of the Institute of Television Engineers of Japan
سال: 1985
ISSN: 0386-6831,1884-9652
DOI: 10.3169/itej1978.39.1148