Download or read book Theoretical and Experimental Investigations on Coupled Antennas in Homogeneous Isotropic Media written by Larry D. Scott and published by . This book was released on 1973 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two representations previously introduced for the distribution of current in an isolated antenna in a general, infinite, homogeneous, isotropic medium have been used to solve the simulataneous integral equations for the currents in coupled dipole antennas. These are a polynomial and a trigonometric form, each with an exponential multiplier. A description of the apparatus for measuring the properties of coupled antennas is also presented together with tables of measured admittance, current and charge distributions. A comparison of the theoretical and experimental results shows fairly good agreement. (Author).

Download or read book A Theoretical and Experimental Analysis of Antennas in Bounded Media with Application to Electromagnetic Probing written by Carl Edward Grove and published by . This book was released on 1975 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book Experimental Study of Coupled Linear Antennas in an Inhomogeneous Dissipative Medium written by Thomas Sugimoto and published by . This book was released on 1970 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation of a pair of coupled linear antennas in an inhomogeneous dissipative medium was made. The medium was obtained by diffusing a water solution of NaCl into a large block of agar agar gel contained in a wooden tank. The relative dielectric constant was approximately 78 while the loss tangent could be varied from 0.13 to 3.0 at 114 MHz, the frequency used throughout the investigation. Driving point admittances and current distributions were measured with the medium inhomogeneity oriented parallel to the axes of the antennas. Self and mutual input admittances were measured as a function of the antenna length (beta h = 0.3 to 2 pi in steps of 0.1). Symmetric and antisymmetric current distributions were measured for four different antenna lengths (h/lambda = 0.25, 0.50, 0.75, and 1.0). Each measurement was repeated for three antenna separations (beta/lambda = 0.125, 0.25, and 0.50). Self and mutual driving-point admittances were measured as a function of base separation (b/lambda = 0.25 to 1.5 in steps of 0.125) for four antenna lengths (h/lambda = 0.25, 0.50, 0.75, and 1.0) with the medium inhomogeneity direction perpendicular to the antenna axes. Also studies were the effects of a medium discontinuity at the input, nonidentical elements, and input aperture size on the measured input admittance. (Author).

Download or read book Naval Research Reviews written by and published by . This book was released on 1974 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Experimental Investigation of Coupled Antennas in an Inhomogeneous Medium written by Thomas Tameo Sugimoto and published by . This book was released on 1970 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Progress Report written by Harvard University. Division of Engineering and Applied Physics and published by . This book was released on 1972 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of IEEE Southeast con Region 3 Conference written by and published by . This book was released on 1974 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Theoretical and Experimental Study of Mutual Coupling Between Antennas written by W. K. Wong and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1973 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Studies on Electromagnetic Radiation and Antennas A Summarizing Review written by and published by . This book was released on 1972 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research studies on electromagnetic radiation and antennas are summarized for the period beginning November 1, 1967 and ending October 31, 1972. Brief reviews are given of work on antenna arrays, electrically thick antennas, modified dipole antennas, the end correction for monopole antennas, antennas in different media, and scattering from finite cylinders and imperfectly conducting spheres. (Author).

Download or read book Dissertation Abstracts International written by and published by . This book was released on 1993-07 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Theoretical and Experimental Studies of Antennas and Arrays in a Parallel plate Region Part Ii the Current Distribution and Impedance Character Istics of Coupled Antennas in a Parallel plate Region written by B. Rama Rao and published by . This book was released on 1963 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current distribution and impedance character istics of two identical, coupled antennas in a parallel-plate region are studied theoretically and experimentally. The simultaneous integral equations for the current distribution on the coupled antennas have been solved by the method of phase-sequence components. Numerical values for the self and mutual admittances have been calculated for identical antennas of length h 0.25 lamda and radius a 0.0105 lamda and for spacings in the range 0.02 equal to or greater than b/lamda equal to or greater than 1.0 where b is the distance between the antennas. The cur rent distribution, self and mutual admittances of the antennas have been measured and are found to be in good agreement with theory. A description of the apparatus and measuring techniques is included. (Author).

Download or read book Collected Reprints written by and published by . This book was released on 1974 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1982 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experimental Study of Coupled Thick Antennas written by Bob M. Duff and published by . This book was released on 1971 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of an experimental study of two identical, parallel, nonstaggered thick antennas are presented in this report. The term 'thick antenna' means a cylindrical dipole whose radius is significant compared to the free space wavelength of the exciting signal. Three thicknesses of antenna were used in the experiment: ka = 0.318, 0.639, and 0.877. Measurements were made of the apparent input admittance for both symmetric and antisymmetric drive, from which apparent self- and mutual admittances were computed. Both axial and transverse components of the current on the surface of the antennas were measured as functions of the cylindrical coordinates phi and z associated with the antenna. A complete description is given of the experimental system including the design of the antenna system, the arrangement for driving the antennas, a description of the measuring system, and a discussion of some of the problems encountered in carrying out the measurements. The variations of self- and mutual admittance as a function of spacing between antennas is shown with comparison to the behavior of thin antennas. Available theoretical results for the current distribution on coupled thick antennas are compared with the measured current distributions. (Author).