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2. Satellite dish - Wikipedia

   en.wikipedia.org/wiki/Satellite_dish

   v. t. e. A satellite dish is a dish-shaped type of parabolic antenna designed to receive or transmit information by radio waves to or from a communication satellite. The term most commonly means a dish which receives direct-broadcast satellite television from a direct broadcast satellite in geostationary orbit.

3. Very-small-aperture terminal - Wikipedia

   en.wikipedia.org/wiki/Very-small-aperture_terminal

   A 2.5 m parabolic dish antenna for bidirectional satellite Internet access. A very-small-aperture terminal (VSAT) [ 1 ] is a two-way satellite ground station with a dish antenna that is smaller than 3.8 meters. The majority of VSAT antennas range from 75 cm to 1.2 m. Bit rates, in most cases, range from 4 kbit/s up to 16 Mbit/s.

4. Parabolic antenna - Wikipedia

   en.wikipedia.org/wiki/Parabolic_antenna

   In small dishes such as home satellite dishes, where the size of the feed structure is comparable with the size of the dish, this can seriously reduce the antenna gain. To prevent this problem these types of antennas often use an offset feed, where the feed antenna is located to one side, outside the beam area. The aperture efficiency for these ...

5. Ku band - Wikipedia

   en.wikipedia.org/wiki/Ku_band

   At 4 GHz (C-band) a 3-meter dish is required to achieve this narrow angular resolution. Note the inverse linear correlation between dish size and frequency. For K u satellites in DBS (Direct Broadcast Satellite) service (12.2-12.7 GHz in the U.S.) dishes much smaller than 1-meter can be used because those satellites are spaced 9 degrees apart.

6. Antenna types - Wikipedia

   en.wikipedia.org/wiki/Antenna_types

   Quarter-wave whip antenna on an FM radio for 88–108 MHz. Rubber ducky antenna on 446 MHz UHF walkie-talkie with rubber cover removed. VHF ground plane antenna. Mast radiator antenna of medium wave AM radio station, Germany. 'T' antenna of amateur radio station, 80 ft high, used at 1.5 MHz.

7. Advanced Extremely High Frequency - Wikipedia

   en.wikipedia.org/wiki/Advanced_Extremely_High...

   The variety of frequencies used, as well as the desire to have tightly focused downlinks for security, require a range of antennas, seen in the picture: 2 SHF downlink phased arrays; 2 satellite-to-satellite crosslinks; 2 uplink/downlink nulling antennas; 1 uplink EHF phased array; 6 uplink/downlink gimbaled dish antenna