STUDY OF ELECTROMAGNETIC WINDOW DIELECTRIC TECHNIQUES
Abstract
A study was made of the performance of an electronic-scan antenna when mounted in a quadri pod. Measurements were obtained also of the diffraction by other metal objects in front of an antenna. Good agreement is observed between the measurements and theoretical results obtained with the aid of a digital computer. The computer program is designed to predict the effects of metal supporting structures, pitot booms, and infrared systems which may be mounted in front of a radar antenna. Two techniques were developed for the analysis and design of in homogeneous radomes. Step-by-step numerical integration is used in cases where the permittivity gradient is large. The WKB method is more convenient and is accurate when the permittivity gradient is small. These techniques are useful in analyzing the effects of thermal gradients on radome performance, and in designing broad band radomes with variable density or variable loading. The factors affecting the power-handling capacity of a radome are considered briefly. The power-handling capacity is generally limited by thermal failure rather than voltage breakdown in the radome.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 15, 1961
- Accession Number
- AD0407029
Entities
Organizations
- Ohio State University