What does dish antenna mean?

Definitions for dish antenna
dish an·ten·na

This dictionary definitions page includes all the possible meanings, example usage and translations of the word dish antenna.

Princeton's WordNet

  1. dish, dish aerial, dish antenna, saucernoun

    directional antenna consisting of a parabolic reflector for microwave or radio frequency radiation

Wikipedia

  1. dish antenna

    A parabolic antenna is an antenna that uses a parabolic reflector, a curved surface with the cross-sectional shape of a parabola, to direct the radio waves. The most common form is shaped like a dish and is popularly called a dish antenna or parabolic dish. The main advantage of a parabolic antenna is that it has high directivity. It functions similarly to a searchlight or flashlight reflector to direct radio waves in a narrow beam, or receive radio waves from one particular direction only. Parabolic antennas have some of the highest gains, meaning that they can produce the narrowest beamwidths, of any antenna type. In order to achieve narrow beamwidths, the parabolic reflector must be much larger than the wavelength of the radio waves used, so parabolic antennas are used in the high frequency part of the radio spectrum, at UHF and microwave (SHF) frequencies, at which the wavelengths are small enough that conveniently-sized reflectors can be used. Parabolic antennas are used as high-gain antennas for point-to-point communications, in applications such as microwave relay links that carry telephone and television signals between nearby cities, wireless WAN/LAN links for data communications, satellite communications, and spacecraft communication antennas. They are also used in radio telescopes. The other large use of parabolic antennas is for radar antennas, which need to transmit a narrow beam of radio waves to locate objects like ships, airplanes, and guided missiles. They are also often used for weather detection. With the advent of home satellite television receivers, parabolic antennas have become a common feature of the landscapes of modern countries.The parabolic antenna was invented by German physicist Heinrich Hertz during his discovery of radio waves in 1887. He used cylindrical parabolic reflectors with spark-excited dipole antennas at their foci for both transmitting and receiving during his historic experiments.

ChatGPT

  1. dish antenna

    A dish antenna, also known as a parabolic antenna, is a type of antenna that is designed to receive or transmit signals to or from a specific direction. It consists of a parabolic (bowl-shaped) reflector and a feed antenna at its focus point. The dish shape concentrates the signal onto the feed antenna, increasing signal strength and reducing interference from other directions. Dish antennas are commonly used in satellite television reception, radio astronomy, and communication between spacecraft and control centers on Earth.

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Numerology

  1. Chaldean Numerology

    The numerical value of dish antenna in Chaldean Numerology is: 3

  2. Pythagorean Numerology

    The numerical value of dish antenna in Pythagorean Numerology is: 1

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"dish antenna." Definitions.net. STANDS4 LLC, 2024. Web. 29 Mar. 2024. <https://www.definitions.net/definition/dish+antenna>.

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