Statements (35)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
Antenna Type
|
| gptkbp:canBe |
gptkb:Cassegrain
gptkb:Prime_Focus Offset Focus |
| gptkbp:component |
Radio Telescopes
Radar Antennas Satellite Dishes |
| gptkbp:discoveredIn |
19th Century
|
| gptkbp:feature |
High Directionality
High Gain Narrow Beamwidth |
| gptkbp:focuses |
gptkb:Electromagnetic_Waves
|
| gptkbp:foundIn |
gptkb:satellite
gptkb:Ground_Stations Observatories Broadcast Facilities |
| https://www.w3.org/2000/01/rdf-schema#label |
Parabolic Dishes
|
| gptkbp:inventedBy |
gptkb:Heinrich_Hertz
|
| gptkbp:material |
Metal
Mesh Solid Surface |
| gptkbp:operatesIn |
Microwave Frequencies
Radio Frequencies |
| gptkbp:relatedTo |
Horn Antennas
Reflector Antennas Yagi Antennas |
| gptkbp:requires |
Feed Antenna
Mounting Structure |
| gptkbp:shape |
Paraboloid
|
| gptkbp:usedFor |
gptkb:Satellite_Communication
Radar Systems Radio Telescopes Television Reception |
| gptkbp:bfsParent |
gptkb:Fleet_Science_Center
|
| gptkbp:bfsLayer |
6
|