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Fundamentals of Radio Telescopes

Part of the Astrophysics and Space Science Library book series (ASSL,volume 360)

In this chapter, a brief review of radio astronomical telescopes is provided. The fundamental concepts of radio antennas, including radiation pattern, antenna gain, antenna temperature, antenna efficiency, and polarization, are introduced. These concepts are important for readers outside the radio antenna field. The emphasis of this chapter is placed on the parameter design of reflector radio telescope antennas. These parameter selection criteria are for both the primary focus and the Cassegrain focus reflector antennas. At the end of the chapter, characteristics of the offset antennas, where the polarization is usually a problem, are discussed. The receiver of radio telescope antenna is also introduced.

Keywords

  • Radio Source
  • Radio Telescope
  • Sidelobe Level
  • Antenna Temperature
  • Secondary Mirror

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Cheng, J. (2009). Fundamentals of Radio Telescopes. In: The Principles of Astronomical Telescope Design. Astrophysics and Space Science Library, vol 360. Springer, New York, NY. https://doi.org/10.1007/b105475_6

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