Download or read book Design of Dielectric Loaded Circumferential Slot Antennas of Arbitrary Size for Conical and Cylindrical Bodies written by and published by . This book was released on 1974 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A class of dielectric-loaded slot antennas designed to conform to the shape of various body structures is described. These antennas are flush with the body surface, and designed to occupy minimum space. The basic radiating structure is a low-loss dielectric-core substrate plated with a thin copper wall to form a dielectric-filled cavity. A circumferential radiating slot is in the outer surface of the cavity. The cavity is excited by an inductive post driven from a coaxial line. The conformal radiating slot can be designed in the surface of small or large dielectric structures and results in durable antennas that may operate in the UHF or microwave frequency regions. It is efficient, operates very well over a 10% bandwidth, and can be designed to produce many desired antenna patterns. Theory and experimental data on the different modes of radiation are discussed, along with the intrinsic characteristics of the selected dielectric materials. Design techniques, performance characteristics, and illustrations of a variety of prototype antennas are presented.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1982 with total page 1282 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 Proceedings written by International Telemetering Conference and published by . This book was released on 1982 with total page 950 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings written by and published by . This book was released on 1982 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Conference on Antennas for Aircraft and Spacecraft 3 5 June 1975 written by and published by . This book was released on 1975 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conference Publication written by and published by . This book was released on 1978 with total page 888 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dielectric and Dielectric Loaded Antennas written by Rajeswari Chatterjee and published by John Wiley & Sons. This book was released on 1985-11-07 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive survey of research on dielectric and dielectric-loaded antennas, providing a critical review of work carried out over the past thirty-five years. Covers a wide range of antenna shapes, types, and practical applications at microwave and millimetre wave frequencies.

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1975-04 with total page 930 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements written by and published by . This book was released on 1975-05-16 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Annual Index written by and published by . This book was released on 1975 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conformal Dielectric Filled Edge Slot Antennas for Bodies of Revolution written by and published by . This book was released on 1977 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: A class of circumferential-slot antennas that are ideally suited for conformal mounting on conducting bodies of revolution has been developed. The simplest form of the antenna is a disk of dielectric substrate that is copper- plated on both sides and mounted between two parts of the conducting body so that the aperture coincides with the surface. The antenna is excited by a single coaxial stub at the center and is tuned for proper operating frequency by inductive posts that connect the two copper-plated sides of the disk. By varying the number and location of the inductive posts, the operating frequency of a single antenna can be tuned over a six-to-one range. In practice, plated-through holes are used as inductive posts in order to provide mounting and access holes. The single coaxial feed excites azimuthally symmetric fields that are not significantly distorted by the symmetrically placed inductive posts. Therefore, radiation patterns of edge-slot excited bodies display a high degree of azimuthal symmetry. The small size, light weight and inexpensive fabrication procedure make the edge-slot attractive for many applications.

Download or read book Modern Antenna Design written by Thomas A. Milligan and published by John Wiley & Sons. This book was released on 2005-07-11 with total page 646 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 International Aerospace Abstracts written by and published by . This book was released on 1989 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dielectric Resonator Antennas written by Kwai Man Luk and published by Research Studies Press Limited. This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of dielectric resonator as a resonant antenna was proposed in 1983. Due to the absence of metallic loss, the dielectric resonator antenna (DRA) is highly efficient when operated at millimetre wave frequencies. With the use of high dielectric constant material, the DRA can also be used as a small and low profile antenna operated at low microwave frequencies. Low cost dielectric materials are now easily available commercially, encouraging more antenna engineers to design communication systems with DRAs.

Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Index written by and published by . This book was released on 1975 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Antennas written by Yi Huang and published by John Wiley & Sons. This book was released on 2008-09-15 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical, concise and complete reference for the basics of modern antenna design Antennas: from Theory to Practice discusses the basics of modern antenna design and theory. Developed specifically for engineers and designers who work with radio communications, radar and RF engineering, this book offers practical and hands-on treatment of antenna theory and techniques, and provides its readers the skills to analyse, design and measure various antennas. Key features: Provides thorough coverage on the basics of transmission lines, radio waves and propagation, and antenna analysis and design Discusses industrial standard design software tools, and antenna measurement equipment, facilities and techniques Covers electrically small antennas, mobile antennas, UWB antennas and new materials for antennas Also discusses reconfigurable antennas, RFID antennas, Wide-band and multi-band antennas, radar antennas, and MIMO antennas Design examples of various antennas are provided Written in a practical and concise manner by authors who are experts in antenna design, with experience from both academia and industry This book will be an invaluable resource for engineers and designers working in RF engineering, radar and radio communications, seeking a comprehensive and practical introduction to the basics of antenna design. The book can also be used as a textbook for advanced students entering a profession in this field.