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Book Synopsis Double-spherical Cassegrain Reflector Geometric Optical Solution by : Akira Ishimaru
Download or read book Double-spherical Cassegrain Reflector Geometric Optical Solution written by Akira Ishimaru and published by . This book was released on 1971 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a need for high gain antennas which are capable of rapid scanning and multibeam operations. The report presents a study of double-spherical Cassegrain reflector to ascertain whether this antenna is practical for these purposes. The aperture blocking, the spread of the field, and the phase and amplitude distributions are examined using geometric optical technique There is no single optimum condition, but it is shown that a proper combination of the subreflector and main reflector sizes and the position of the feed can indeed produce a promising antenna. (Author).
Book Synopsis Reflecting Telescope Optics I by : Raymond N. Wilson
Download or read book Reflecting Telescope Optics I written by Raymond N. Wilson and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first volume of a monumental work that will provide a complete treatment of all theoretical aspects of reflecting telescope optics. It addresses all specialists in the field, both within the astronomical community and in industry, and, consequently, particular emphasis is placed on subjects such as practical alignment, test techniques, and maintenance aspects. Whereas the second volume will concentrate on technical aspects and modern developments, this one is devoted to the theory of reflecting telescope optics and, together with the historical development, it will also prove to be useful to students. This book has real classic potential.
Book Synopsis Geometric Optics by : Antonio Romano
Download or read book Geometric Optics written by Antonio Romano and published by Birkhäuser. This book was released on 2016-09-26 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book—unique in the literature—provides readers with the mathematical background needed to design many of the optical combinations that are used in astronomical telescopes and cameras. The results presented in the work were obtained by using a different approach to third-order aberration theory as well as the extensive use of the software package Mathematica®. Replete with workout examples and exercises, Geometric Optics is an excellent reference for advanced graduate students, researchers, and practitioners in applied mathematics, engineering, astronomy, and astronomical optics. The work may be used as a supplementary textbook for graduate-level courses in astronomical optics, optical design, optical engineering, programming with Mathematica, or geometric optics.
Book Synopsis The Handbook of Antenna Design by : Alan W. Rudge
Download or read book The Handbook of Antenna Design written by Alan W. Rudge and published by IET. This book was released on 1982 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the fundamental background theory and analytical techniques of antenna design. It deals with a very wide range of antenna types, operating from very low frequencies to millimetre waves.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Double-Spherical Cassegrain Reflector with a Single Displaced Feed by : Akira Ishimaru
Download or read book Double-Spherical Cassegrain Reflector with a Single Displaced Feed written by Akira Ishimaru and published by . This book was released on 1973 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: For multibeam operation of an antenna, it is necessary for some of the feeds to be displaced from the axis of symmetry. The effects of such displacement are investigated for the double-spherical Cassegrain reflector. Aperture blocking, phase error, radiation pattern, aperture efficiency, beam-width and sidelobe level are studied as functions of the displacement angle xi. An attempt to improve the performance of the antenna by tilting the feed through an angle zeta is made, and a practical feed pattern is used to evaluate the system. The results indicate that very narrow beamwidth and reasonably low sidelobes can be obtained, which are essential for multibeam antennas. The decrease of the aperture efficiency due to a displacement and a tilt of the feed is studied in detail for different reflector sizes and feed pattern. (Author).
Book Synopsis Bibliography, with Abstracts, of AFCRL Publications from 1 October to 31 December 1971 by : Air Force Cambridge Research Laboratories (U.S.)
Download or read book Bibliography, with Abstracts, of AFCRL Publications from 1 October to 31 December 1971 written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1972 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reflecting Telescope Optics I by : Raymond N. Wilson
Download or read book Reflecting Telescope Optics I written by Raymond N. Wilson and published by Springer Science & Business Media. This book was released on 2007-09-03 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: Complete compendium on the physics and applications of telescope optics, underlying the original and oldest of astronomical instruments. Thoroughly scholarly work that provides both the historical perspective and the state-of-the-art technology, such as the 4-lens corrector of Delabre and the LADS corrector. Newly updated edition brings this authoritative work completely up to date.. From the reviews "... an unequalled reference for those who have interest in the field ... a unique reference in a superb presentation." ESO Messenger
Book Synopsis Report on Research at AFCRL. by : Air Force Cambridge Research Laboratories (U.S.)
Download or read book Report on Research at AFCRL. written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1970 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Reflector Antennas and Feed Systems Volume I: Theory and Design of Reflectors by : Satish K. Sharma
Download or read book Handbook of Reflector Antennas and Feed Systems Volume I: Theory and Design of Reflectors written by Satish K. Sharma and published by Artech House. This book was released on 2013-07-01 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first truly comprehensive and most up-to-date handbook available on modern reflector antennas and feed sources for diversified space and ground applications. There has never been such an all-encompassing reflector handbook in print, and no currently available title offers coverage of such recent research developments. The Handbook consists of three volumes. Volume I provides a unique combination of theoretical underpinnings with design considerations and techniques. The need for knowledge in reflector antennas has grown steadily over the last two decades due to increased use in space and ground applications, as well as their high gain and wide bandwidth capabilities at relatively low cost. This volume brings you to the leading edge of developments in the field related to numerical techniques, classical reflector geometries, adaptive reflector antennas, shaped reflectors, bifocal and bicollimated dual reflectors, advanced reflectors, and reflect arrays. A must-have reference for both practicing engineers as well as academic researchers.
Book Synopsis Antenna Theory and Design by : Warren L. Stutzman
Download or read book Antenna Theory and Design written by Warren L. Stutzman and published by John Wiley & Sons. This book was released on 2012-05-22 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stutzman's 3rd edition of Antenna Theory and Design provides a more pedagogical approach with a greater emphasis on computational methods. New features include additional modern material to make the text more exciting and relevant to practicing engineers; new chapters on systems, low-profile elements and base station antennas; organizational changes to improve understanding; more details to selected important topics such as microstrip antennas and arrays; and expanded measurements topic.
Download or read book Government Reports Index written by and published by . This book was released on 1971 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements by :
Download or read book Government Reports Announcements written by and published by . This book was released on 1971 with total page 1366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Tech Briefs written by and published by . This book was released on 1985 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microwave Optics written by S. Cornbleet and published by . This book was released on 1976 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geometric Optics by : Antonio Romano
Download or read book Geometric Optics written by Antonio Romano and published by Springer Science & Business Media. This book was released on 2009-10-10 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book—unique in the literature—provides readers with the mathematical background needed to design many of the optical combinations that are used in astronomical telescopes and cameras. The results presented in the work were obtained by using a different approach to third-order aberration theory as well as the extensive use of the software package Mathematica®. Replete with workout examples and exercises, Geometric Optics is an excellent reference for advanced graduate students, researchers, and practitioners in applied mathematics, engineering, astronomy, and astronomical optics. The work may be used as a supplementary textbook for graduate-level courses in astronomical optics, optical design, optical engineering, programming with Mathematica, or geometric optics.
Book Synopsis International Broadcast Engineer by :
Download or read book International Broadcast Engineer written by and published by . This book was released on 1980 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:
