Results of the Wisconsin test facility phasing anomaly investigations
Abstract
The following phasing anomalies have been observed: (1) psi deg phasing does not equal (360 deg - psi deg), contrary to the normal behavior of crossed dipoles; (2) the maximum field strength at any single receiving location is not when psi = 0 deg or 180 deg; (3) the antenna phasing shift appears to be -20 deg to -30 deg; (4) the effective dipole moment does not appear to be independent of psi; and (5) the antenna phasing shift appears to be a function of azimuth angle. By a combination of nearfield and farfield measurements, a new pattern factor that quantitatively explains these anomalies was empirically determined.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- September 1977
- Bibcode:
- 1977STIN...7815375B
- Keywords:
-
- Anomalies;
- Antenna Radiation Patterns;
- Extremely Low Frequencies;
- Omnidirectional Antennas;
- Phase Error;
- Equations;
- Graphs (Charts);
- Phase Shift;
- Tables (Data);
- Communications and Radar