Model experiments with slot antenna arrays for imaging
Abstract
A prototype imaging system at 31 GHz was developed, which employs a two-dimensional (5x5) array of tapered slot antennas, and integrated detector or mixer elements, in the focal plane of a prime-focus paraboloid reflector, with an f/D=1. The system can be scaled to shorter millimeter waves and submillimeter waves. The array spacing corresponds to a beam spacing of approximately one Rayleigh distance and a two-point resolution experiment showed that two point-sources at the Rayleigh distance are well resolved.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- September 1985
- Bibcode:
- 1985STIN...8612482J
- Keywords:
-
- Antenna Arrays;
- Antenna Design;
- Antenna Radiation Patterns;
- Imaging Techniques;
- Focal Plane Devices;
- Millimeter Waves;
- Rayleigh Distribution;
- Signal To Noise Ratios;
- Transfer Functions;
- Waveguides;
- Communications and Radar