Single-frequency electronic-modulated analog line scanning using a dielectric antenna
Abstract
A line scanning antenna whereby periodic perturbations and conductivity changes in p-i-n diode modulators can be obtained is described. Operation is at single frequency with relatively small power requirements of 1 V x 50 mA per diode. An experiment to minimize absorption-refraction losses is presented in which the moving wall concept is based on an increase in bias current with a resultant flooding of the entire diode from center outward. Results show that as the forward bias current is increased in small increments, the radiated beam starts to shift with some attenuation. As the current is increased to 50 mA and above, the angular shift increases to its maximum value and the attenuation is reduced to almost zero as it was with zero bias current.
- Publication:
-
IEEE Transactions on Microwave Theory Techniques
- Pub Date:
- May 1982
- DOI:
- 10.1109/TMTT.1982.1131144
- Bibcode:
- 1982ITMTT..30..816H
- Keywords:
-
- Dielectrics;
- Electronic Control;
- Junction Diodes;
- Microwave Antennas;
- P-I-N Junctions;
- Steerable Antennas;
- Antenna Design;
- Antenna Radiation Patterns;
- Energy Dissipation;
- Energy Requirements;
- Perturbation Theory;
- Electronics and Electrical Engineering