Communication satellite antennas : system architecture, by Robert Dybdal

Posted by

By Robert Dybdal

A useful method of Antenna expertise For communique Satellites

This authoritative source discusses antenna know-how for communique satellites, addressing either the distance and consumer segments. The ebook offers a method view of antenna functions, an outline of varied antenna applied sciences, and advice on methodologies for antenna review.

Communication satellite tv for pc Antennas starts with an outline of the parameters that symbolize antennas, and is going directly to disguise the antenna designs, applied sciences, and process architectures required for conversation satellite tv for pc platforms. concepts to mitigate interference are coated, and the methods utilized in the advance and characterization of antenna structures are reviewed. realize how to:

  • Adhere to the approach parameters used to quantify antenna performance
  • Understand the applied sciences utilized in large insurance, earth insurance, slender assurance, and array antennas
  • Work inside of normal conversation satellite tv for pc procedure architectures and orbital alternatives
  • Address propagation obstacles and hyperlink performance
  • Implement trustworthy antenna interference mitigation techniques
  • Develop house phase antennas, together with spot beam, a number of beam, adaptive uplink, energetic aperture, and point-to-point antennas
  • Apply person section applied sciences, akin to reflector antenna know-how, antenna sidelobe regulate thoughts, and adaptive interference cancellation systems
  • Evaluate satellite tv for pc antennas and structures utilizing rigorous methodologies

Show description

Read Online or Download Communication satellite antennas : system architecture, technology, and evaluation PDF

Best electromagnetism books

Classical Electromagnetic Radiation

The revision of this hugely acclaimed textual content is designed to be used in complicated physics courses--intermediate point juniors or first yr graduates. simple wisdom of vector calculus and Fourier research is believed. during this version, a truly obtainable macroscopic view of classical electromagnetics is gifted with emphasis on integrating electromagnetic conception with actual optics.

Numerical Analysis in Electromagnetics: The TLM Method

The purpose of this booklet is to provide a wide evaluate of the TLM (Transmission Line Matrix) procedure, that's one of many “time-domain numerical methods”. those equipment are reputed for his or her major reliance on computing device assets. despite the fact that, they've got the good thing about being hugely normal. The TLM procedure has got a name for being a robust and potent software by means of quite a few groups and nonetheless advantages this present day from major theoretical advancements.

Electricity and Magnetism for Mathematicians: A Guided Path from Maxwell's Equations to Yang-Mills

This article is an creation to a couple of the mathematical wonders of Maxwell's equations. those equations resulted in the prediction of radio waves, the belief that mild is one of those electromagnetic wave, and the invention of the unique idea of relativity. in truth, just about all present descriptions of the elemental legislation of the universe may be seen as deep generalizations of Maxwell's equations.

High-Resolution NMR Techniques in Organic Chemistry

High-Resolution NMR options in natural Chemistry, 3rd version describes crucial NMR spectroscopy recommendations for the constitution elucidation of natural molecules and the research in their behaviour in resolution. applicable for complicated undergraduate and graduate scholars, examine chemists and NMR facility managers, this thorough revision covers useful facets of NMR concepts and instrumentation, information assortment, and spectrum interpretation.

Additional info for Communication satellite antennas : system architecture, technology, and evaluation

Example text

5 Sensitivity reduction from receiver noise temperature System Parameters The system parameters are G/T for receiving systems and ERP (Effective Radiated Power) for transmitting systems. The values of these parameters do not vary with the system terminals at which they are determined but their specification must use a consistent set of terminals. Examples will be used to illustrate the determination of these system parameters. 5 dB loss exists between the antenna and receiver because of a bandpass filter and interconnection loss.

Pozar and S. Targonski, “Axial Ratio of Circularly Polarized Antennas with Amplitude and Phase Errors,” IEEE AP-S Magazine (October 1990): 45–46. 5. R. B. Dybdal and R. H. Ott, “Coherent RF Error Statistics,” IEEE Trans Microwave Theory and Techniques, vol. MTT-34 (December 1986): 1413–1419. 24 Chapter One 6. K. M. Lambert and R. C. Rudduck, “Calculation and Verification of Antenna Temperature for Earth-based Reflector Antennas,” Radio Science, vol. 27, (January–February 1992): 23–30. 7. T. H. Lee, R.

The inner and outer lens surfaces provide design freedom to optimize the beam scanning performance of the design. Dielectric lens designs are limited by the weight of the dielectric and the practical problem of obtaining a sufficient dielectric size with uniform dielectric properties. Dielectric lens applications are limited to designs at higher frequencies that require relatively small lens diameters. The dielectric weight can be reduced by zoning techniques. In this case, the dielectric aperture is divided into radial zones and the dielectric thickness is reduced by satisfying the aperture phase distribution on a modulo 2p sense rather than the true time delay of an unzoned lens.

Download PDF sample

Rated 4.49 of 5 – based on 12 votes