Effect of Dielectric Substrate on Infinite Arrays of Single-Polarized Vivaldi Antennas
Abstract
The effect of dielectric substrate on the performance of infinite arrays of single-polarized Vivaldi antennas is studied by computing the input impedance of an antenna in an array environment using full wave method of moments techniques. It is found that dielectric permittivity plays an important role in the wideband performance of such arrays, and comparison with dielectric-free cases for similar geometries is also included to bring out the impact of the presence of the substrate. The effect of substrate thickness is also studied. Results are shown to explain the trends and characteristics of parametric variation, which are useful in creating a new design, or in optimizing an existing one involving Vivaldi arrays aimed at wideband performance.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 2003
- Accession Number
- ADP017235
Entities
People
- D. H. Schaubert
- S. Kasturi
Organizations
- University of Massachusetts Amherst