Parabolic antenna - Wikipedia
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.
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The Parabolic Reflector Antenna (Satellite Dish) - Antenna Theory
The most well-known reflector antenna is the parabolic reflector antenna, commonly known as a satellite dish antenna. Examples of this dish antenna are shown in the following Figures. Figure 1. The "big dish" antenna of Stanford University. Figure 2. A random direcTV dish antenna on a roof.
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Parabolic dish antennas can provide extremely high gains at microwave frequencies. A 2-foot dish at 10 GHz can provide more than 30 dB of gain. The gain is only limited by the size of the parabolic reflector; a number of hams have dishes larger than 20 feet, and occasionally a much larger commercial dish is made available for amateur operation ...
Ultimate Guide to Choose the Right Parabolic Dish Antenna
2024年8月16日 · Parabolic dish antennas, often referred to as reflector antennas, are widely used for wireless communications, backhauls, point-to-point links, satellite communications , Telemetry systems and other applications that require the reception or transmission of radio waves.
What is a Parabolic Dish Antenna? - Sanny Telecom
2024年3月10日 · The parabolic dish antenna consists of three main components: the dish reflector, the feedhorn, and the mounting bracket. The dish is a large, curved metal surface that reflects the radio waves. The feedhorn is a small, horn-shaped device located at the focal point.
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2023年10月21日 · Typing “satellite receiving antenna” is kind of a drag. First: LNB, or feed horn? The LNB is the thing at the front of the dish. You can read more about them here. The bumps on the front, covered by white plastic caps, are called “feed horns.”
What are Parabolic Antennas? - everything RF
2024年6月4日 · A parabolic antenna (or a dish antenna) is a type of directional, high-gain antenna characterized by a parabolic reflector. It consists of two main parts: a parabolic dish/reflector and the feed antenna located in the middle of the parabolic dish.
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