Short Backfire Antenna Modeling With Dipole or Waveguide Excitation,
Abstract
A three-dimensional short backfire antenna structure with circular symmetry is modeled using the mode matching method and the vector Hankel transform. The excitations considered are thin wire dipole antennas and flush waveguide feeds. The efficiency of computation can be increased by ignoring the higher order harmonics in the model. Then this model is used to design a structure with a larger directivity than previously reported. Theoretical predictions of the radiation pattern yield good agreement with measurements performed on a prototype. In addition, this model could be modified to approximate rectangular waveguide excitations or corrugated cavities.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1992
- Accession Number
- ADP007446
Entities
People
- Chunsong Lu
- G. P. Otto
- W. C. Chew
Organizations
- University of Illinois Urbana–Champaign