Statistics of the radiated field of a space-to-earth microwave power transfer system
Abstract
Statistics such as average power density pattern, variance of the power density pattern and variance of the beam pointing error are related to hardware parameters such as transmitter rms phase error and rms amplitude error. Also a limitation on spectral width of the phase reference for phase control was established. A 1 km diameter transmitter appears feasible provided the total rms insertion phase errors of the phase control modules does not exceed 10 deg, amplitude errors do not exceed 10% rms, and the phase reference spectral width does not exceed approximately 3 kHz. With these conditions the expected radiation pattern is virtually the same as the error free pattern, and the rms beam pointing error would be insignificant (approximately 10 meters).
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- 1976
- Bibcode:
- 1976STIN...7730314S
- Keywords:
-
- Energy Transfer;
- Microwave Transmission;
- Satellite Solar Power Stations;
- Phase Control;
- Power Transmission;
- Radiant Flux Density;
- Radiative Transfer;
- Communications and Radar