Download or read book Theoretical and Experimental Studies of Antennas and Arrays in a Parallel plate Region Part Iv Wave Propagation Along Infinite Yagi type Array in a Parallel plate Region written by B. Rama Rao and published by . This book was released on 1963 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: An approximate expression for the phase velocity of wave propagation along an infinite Yagi-type array in a parallel-plate region was derived by a variational method. The dependence of the propagation constant on the various geometrical parameters of the array is discussed. For antenna lengths less than a half-wavelength and for short distances between elements, it was shown that there can be two independent surface wave modes propagating along the structure. A transcendental equation for the propagation con stant of the periodic structure was also obtained by a more rigorous impedance pproach taking into account the mutual coupling between antenna ele ments. The design and fabrication of the experi mental equipment is described. An outline of the proposed experimental work is given and methods for measuring the propagation constant, gain, front-to-back ratio, current-distribution on the elements, radiation pattern, input impedance, longitudinal and transverse field distribution and excitation efficiency of the array are described. (Author).
Download or read book Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and published by . This book was released on 1964 with total page 1148 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 1963 with total page 768 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 written by and published by . This book was released on 1963 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The directional characteristics and input imped ance of a two-element Yagi-type array in a paral lel-plate region were studied. The optimum values of the tuning reactance and inter-element spacing at which the parasite gives the best performance either as a reflector or as a direc tor were obtained. The radiation fields in the directions away from and towards the parasite, and the input impedance to the array were meas ured experimentally and found to be in good agreement with theory. (Author).
Download or read book OAR Cumulative Index of Research Results written by United States. Air Force. Office of Aerospace Research and published by . This book was released on 1963 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book OAR Quarterly Index of Current Research Results written by United States. Air Force. Office of Aerospace Research and published by . This book was released on 1963 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book OAR Cumulative Index of Research Results written by and published by . This book was released on with total page 256 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 1963 with total page 1342 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 1963 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1963 with total page 1318 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 Selected Technical Reports written by United States. Federal Aviation Administration and published by . This book was released on 1963 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering Index Electrical electronics Section written by and published by . This book was released on 1967 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phased Array Antennas with Optimized Element Patterns written by Sergei P. Skobelev and published by Artech House. This book was released on 2011 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: This authoritative resource provides you with a detailed description of ideal array element characteristics that help you estimate the quality of development of real-world phased array antennas. You find several approaches to optimum phased array design, allowing you to provide specified array gain in a specific region of scan, using a minimum number of expensive, controlled devices. Moreover, this practical book presents important numerical methods that you can use to model and optimize phased array structure to obtain the best array characteristics that the chosen structure can provide.From arrays with beam-forming networks, arrays of coupled dual-mode waveguides, and arrays with reactively loaded radiators, to waveguide arrays with protruding dielectric elements, and arrays with strip, disk, and wire structures, this comprehensive reference explains a wide range of essential topics to help you with work in this challenging area. The book is supported with over 165 illustrations and more than 566 equations.
Download or read book Moment Methods in Antennas and Scattering written by Robert C. Hansen and published by Artech House Antenna Library. This book was released on 1990 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text attempts to give the reader an understanding of the key developments in moment methods and the early history of this development. It provides over 45 key papers in the field, many of which are from non-IEEE sources.
Download or read book Theory and Analysis of Phased Array Antennas written by Noach Amitay and published by John Wiley & Sons. This book was released on 1972 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
