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A multiple-beam spherical reflector antenna
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Woo, R. |
| Copyright Year | 1971 |
| Description | A spherical reflector with multiple feeds is considered for application in communications satellite systems. Data are presented which show that spherical reflectors possessing relatively high gain (40 db) and very small phase path error are feasible. A design of a spherical reflector utilizing corrugated horn feeds is considered. Radiation patterns are computed using the physical-optics technique. The designed antenna is approximately 60 lambda in diameter. Calculations performed for this antenna with three beams indicate that each beam has a gain of about 42 db, a beamwidth of 1.4 deg, and sidelobes that can be expected to be at least 28 db down. These results indicate that the feature of low sidelobes makes the spherical reflector a consideration for a multiple-beam communications satellite antenna. |
| File Size | 315854 |
| Page Count | 9 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19720003202 |
| Archival Resource Key | ark:/13960/t1qg3g30p |
| Language | English |
| Publisher Date | 1971-10-01 |
| Access Restriction | Open |
| Subject Keyword | Amplification Multipath Transmission Directors Antenna Elements Reflectors Accuracy Spacecraft Communication Spherical Antennas Computerized Simulation Antenna Radiation Patterns Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
