The 94GHz propagation facility at the Ypenburg airfield and the first experimental results
Abstract
Attenuation at 94 GHz caused by rain was investigated for vertical polarization on a 935 m link, with four rapid response rain gages and a distrometer. The measured and the theoretically predicted rain attenuation derived from the actually measured raindrop size distribution are compared. The decrease of antenna gain at 94 GHz due to water on a 1.2 m Cassegrain antenna is discussed. It is demonstrated that for accurate propagation measurements it is necessary to equip the antennas with protective shelters.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- September 1979
- Bibcode:
- 1979STIN...8212325K
- Keywords:
-
- Antenna Design;
- Atmospheric Attenuation;
- Electromagnetic Wave Transmission;
- Ultrahigh Frequencies;
- Cassegrain Antennas;
- Polarized Electromagnetic Radiation;
- Rain;
- Rain Gages;
- Communications and Radar