Impedance matching of dielectric space-frame radomes
Abstract
Dielectric-space frame radomes for large microwave antennas which have been constructed from glass fiber-reinforced polyester are noted to exhibit undesirable sidelobing in certain antenna configurations. A theoretical effort has been made to solve this problem by impedance-matching the structural members of the radome with thin wires. For the case of a simple, two-wire-loaded strut configuration, the residual forward-scattered field is reduced to approximately 32 percent of that predicted for the unloaded strut. Attention is given to measurements conducted in the 10-11 GHz range over a wide range of incidence angles.
- Publication:
-
19th Symposium on Electromagnetic Windows
- Pub Date:
- 1988
- Bibcode:
- 1988emw..conf...43B
- Keywords:
-
- Dielectrics;
- Impedance Matching;
- Microwave Antennas;
- Radomes;
- Aberration;
- Anechoic Chambers;
- Horn Antennas;
- Scale Models;
- Test Ranges;
- Electronics and Electrical Engineering