by National Aeronautics and Space Administration, Langley Research Center, For sale by the National Technical Information Service in Hampton, Va, [Springfield, Va .
Written in English
|Statement||Sharon L. Padula, Howard M. Adelman, and M.C. Bailey.|
|Series||NASA technical memorandum -- 89110.|
|Contributions||Aldelman, Howard M., Bailey, M. C., Langley Research Center.|
|The Physical Object|
Get this from a library! Integrated structure electromagnetic optimization of large space antenna reflectors. [Sharon L Padula; Howard M Aldelman; M C Bailey; Langley Research Center.]. In the area of structural design of reflector antennas, the existing researches mainly focus on size/shape optimization or just optimizing for structural performances (e.g., the reflector surface accuracy). Reflector antennas are one kind of equipment which is finally judged by its electromagnetic performances, and topology optimization has been proven a powerful method for structural by: 2. Antenna Reflectors Deployable Reflectors LSS offers deployable antenna reflectors with aperture diameters ranging from m to 35 m and above, using different concepts for the deployable backing structure such as umbrella and peripheral ring architectures. 1. Introduction. With the development of space based communication and energy transmission technology, such as Earth satellites, deep space missions,,,, and Space Solar Power Station (SSPS),,, a higher request to the antennas has been set, which includes high frequency, high power, large aperture and low masses.A film antenna either a space large film reflector antenna (SLFRA) or a Cited by: 1.
The requirements for extremely precise and powerful large space antenna reflectors have motivated the development of a procedure for static shape control of the reflector surface. Our antenna reflectors, which are used for communications satellites and deep space missions, are produced in a variety of configurations: hyperbolic, parabolic and shaped surfaces. Single Shell Graphite Reflectors: These shaped, “super elliptical” apertures ( by meters) have a . Practical approaches for establishing large, precise antenna reflectors in space are described. Reflector surfaces consisting of either solid panels or knitted mesh are considered. The approach using a deep articulated truss structure to support a mesh reflector is selected for detailed investigation. Some studies have been performed in the antenna design based on the integrated structural-electromagnetic concept, such as the shape control of antennas [12, 13], multidisciplinary optimization [14, 15], and electromechanical coupling analysis [9, 10]. In the integrated optimization design procedure, the antenna far field pattern will be Author: Shuxin Zhang, Guigeng Yang, Yiqun Zhang.
radio telescopes use large reflectors to collect and focus power onto the simple feed antennas, such as waveguide horns or dipoles backed by small reflectors, that are connected to receivers. The most common reflector shape is a paraboloid of revolution because it can focus the plane wave from a distant point source onto a single focal point. This book addresses a broad range of topics on antennas for space applications. First, it introduces the fundamental methodologies of space antenna design, modelling and analysis as well as the state-of-the-art and anticipated future technological developments. Each of the topics discussed are specialized and contextualized to the space sector. Furthermore, case studies are also provided to. Reflector, Cosmic Materials, Space Vehicles, Test Rig. strain-stress state and electromagnetic fields of the antenna. INTRODUCTION. Deployment of large-sized deployable reflector antennas at low Earth orbit is associated with the perspective development of . Analysis of Reflector Antennas provides information pertinent to the analysis of reflector-antenna systems. This book provides an understanding of how design data have been and can be derived. Organized into four chapters, this book begins with an overview of the history of focusing reflector-antenna systems characterized by a highly variable Book Edition: 1.