Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 158
Book Description
Phased-Array-Fed Reflector Antenna Systems for Radio Astronomy and Earth Observations
Author: Phased Arrays for Radio Astronomy, Remote Sensing, and Satellite Communications
Author: Karl F. WarnickPublisher: Cambridge University Press
ISBN: 1108423922
Category : Mathematics
Languages : en
Pages : 471
Book Description
Discover a modern approach to the analysis, modeling and design of high sensitivity phased arrays. Network theory, numerical methods and computational electromagnetic simulation techniques are uniquely combined to enable full system analysis and design optimization. Beamforming and array signal processing theory are integrated into the treatment from the start. Digital signal processing methods such as polyphase filtering and RFI mitigation are described, along with technologies for real-time hardware implementation. Key concepts from interferometric imaging used in radio telescopes are also considered. A basic development of theory and modeling techniques is accompanied by problem sets that guide readers in developing modeling codes that retain the simplicity of the classical array factor method while incorporating mutual coupling effects and interactions between elements. Combining current research trends with pedagogical material suitable for a first-year graduate course, this is an invaluable resource for students, teachers, researchers, and practicing RF/microwave and antenna design engineers.
Phased Array Feed Design Technology for Large Aperture Microwave Radiometer (LAMR) Earth Observations
Author: The Paraboloidal Reflector Antenna in Radio Astronomy and Communication
Author: Jacob W. M. BaarsPublisher: Springer Science & Business Media
ISBN: 0387697349
Category : Science
Languages : en
Pages : 270
Book Description
Radio astronomers have developed techniques of calibration of large reflector antennas with radio astronomical methods, but these have not been comprehensively described. This text aims to fill this gap, taking a practical approach to the characterisation of antennas. All calculations and results in the form of tables and figures have been made with Mathematica by Wolfram Research. The reader can use the procedures for the implementation of his own input data.
Handbook of Reflector Antennas and Feed Systems Volume I: Theory and Design of Reflectors
Author: Satish K. SharmaPublisher: Artech House
ISBN: 160807515X
Category : Technology & Engineering
Languages : en
Pages : 323
Book Description
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.
Phased Array Feed Design Technology for Large Aperture Microwave Radiometer (Lamr) Earth Observations
Author: National Aeronaut Administration (Nasa)Publisher: Createspace Independent Publishing Platform
ISBN: 9781722690571
Category :
Languages : en
Pages : 80
Book Description
An assessment of the potential and limitations of phased array antennas in space-based geophysical precision radiometry is described. Mathematical models exhibiting the dependence of system and scene temperatures and system sensitivity on phased array antenna parameters and components such as phase shifters and low noise amplifiers (LNA) are developed. Emphasis is given to minimum noise temperature designs wherein the LNA's are located at the array level, one per element or subarray. Two types of combiners are considered: array lenses (space feeds) and corporate networks. The result of a survey of suitable components and devices is described. The data obtained from that survey are used in conjunction with the mathematical models to yield an assessment of effective array antenna noise temperature for representative geostationary and low Earth orbit systems. Practical methods of calibrating a space-based, phased array radiometer are briefly addressed as well. Schuman, H. K. Unspecified Center...
Multibeam Phased Array Antennas as Satellite Constellation Ground Station
Author: Guolong HePublisher: Springer Nature
ISBN: 9819979102
Category : Technology & Engineering
Languages : en
Pages : 112
Book Description
This book focuses on the multi-beam phased array antenna as a satellite ground station. As there are already many excellent books on phased array antennas in the literature, this book focuses mainly on some engineering practices and fills the gap between principles and practices, such as array excitation error impact analysis and calibration methods, array geometry design for hemispherical coverage, multiple beam resource management, etc. This book is particularly suitable for readers interested in satellite constellation design or satellite ground station design. This book also benefits researchers and engineers in the fields of phased array antennas, aerospace engineering, telecommunications, etc.
Space Antenna Handbook
Author: William A. ImbrialePublisher: John Wiley & Sons
ISBN: 1119945844
Category : Technology & Engineering
Languages : en
Pages : 772
Book Description
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 demonstrate the design and implementation of antennas in actual applications. Second, the authors present a detailed review of antenna designs for some popular applications such as satellite communications, space-borne synthetic aperture radar (SAR), Global Navigation Satellite Systems (GNSS) receivers, science instruments, radio astronomy, small satellites, and deep-space applications. Finally it presents the reader with a comprehensive path from space antenna development basics to specific individual applications. Key Features: Presents a detailed review of antenna designs for applications such as satellite communications, space-borne SAR, GNSS receivers, science instruments, small satellites, radio astronomy, deep-space applications Addresses the space antenna development from different angles, including electromagnetic, thermal and mechanical design strategies required for space qualification Includes numerous case studies to demonstrate how to design and implement antennas in practical scenarios Offers both an introduction for students in the field and an in-depth reference for antenna engineers who develop space antennas This book serves as an excellent reference for researchers, professionals and graduate students in the fields of antennas and propagation, electromagnetics, RF/microwave/millimetrewave systems, satellite communications, radars, satellite remote sensing, satellite navigation and spacecraft system engineering, It also aids engineers technical managers and professionals working on antenna and RF designs. Marketing and business people in satellites, wireless, and electronics area who want to acquire a basic understanding of the technology will also find this book of interest.
Compact Phased Array Fed Dual Reflector Antenna System
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 37
Book Description
A compact phased array fed dual reflector antenna system. The antenna system includes a parabolic main reflector, an elliptical sub-reflector, and a phased feed array. The focal point of the parabolic main reflector is located on the elliptical surface of the sub-reflector. A first elliptical focal point of the sub-reflector is located on the parabolic surface of the main reflector while the second elliptical focal point is located on the radiating surface of the feed array.
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