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.

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.

a parabolic curve rotated around an axis which passes through the focus and the center of the curve. A transmitting antenna reverses the path: the light or radio wave originates from a point source at the focus and is reflected into a beam of rays parallel to the axis of the parabola, as shown in Figure 4-1. Illumination

Constructions that are more complex involve a secondary reflector (a subreflector) at the focal point, which is illuminated by a primary feed. These are called dual-reflector antennas. The most common main reflector is the parabolic one. Other common reflectors are: cylindrical, corner, and spherical. 2. Principles of parabolic reflectors.

If a Parabolic Reflector antenna is used for transmitting a signal, the signal from the feed, comes out of a dipole or a horn antenna, to focus the wave on to the parabola. It means that, the waves come out of the focal point and strike the Paraboloidal reflector.

May 15, 2018 · Classify antennas according to the installation site of feed, which are classified to prime focus parabolic front feed antenna and cassegrain back feed antenna. Antenna structure diagrams are as shown in (a), (b). Radiation Pattern and …

May 20, 2023 · Parabolic antennas are essential components in modern communication systems, enabling efficient signal reception and transmission over long distances. This paper provides a concise overview of...

How to Improve the Feed for a Parabolic Reflector? The NASA Deep Space Network (DSN) is an international network of antennas that provide the communication links between Earth and space. DSN consists of three deep-space communications facilities placed approximately 120 degrees apart around the world:

The parabolic reflector is sometimes referred as a dish antenna and its distinctive shape offers high gain and narrow bandwidth. It is regarded as a reflective device that is used both at transmitting as well as receiving antenna. Basically, it transforms the plane wave from the axis towards the focus into the spherical wave.

Parabolic reflector antenna is the new model for high gain and directivity with fewer minor lobes. Check out this article to learn about this antenna’s details. Skip to content