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Choice of antenna geometry for microwave power transmission from solar power satellites
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Potter, Seth D. |
| Copyright Year | 1992 |
| Description | A comparison is made between square and circular transmitting antennas for solar power satellite microwave power transmission. It is seen that the exclusion zone around the rectenna needed to protect populations from microwaves is smaller for a circular antenna operating at 2.45 GHz than it is for a square antenna at that frequency. If the frequency is increased, the exclusion zone size remains the same for a square antenna, but becomes even smaller for a circular antenna. Peak beam intensity is the same for both antennas if the frequency and antenna area are equal. The circular antenna puts a somewhat greater amount of power in the main lobe and somewhat less in the side lobes. Since rain attenuation and atmospheric heating remain problems above 10 GHz, it is recommended that future solar power satellite work concentrate on circular transmitting antennas at frequencies of roughly 10 GHz. |
| File Size | 370413 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19930018798 |
| Archival Resource Key | ark:/13960/t6159h86k |
| Language | English |
| Publisher Date | 1992-02-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Propulsion And Power Satellite Antennas Dipole Antennas Rectennas Atmospheric Heating Antenna Design Power Transmission Solar Power Satellites Microwave Power Beaming Microwaves Sidelobes Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
