EVALUATION OF A HEMISPHERICAL ANECHOIC CHAMBER
Abstract
An investigation was conducted to study the merits of a hemispherical anechoic chamber 150 ft in diameter, by making measurements on a model scaled by a factor of 1/12. This model was evaluated by a comparison of antenna patterns made within the chamber to patterns made on an outdoor test range. It was determined that the hemispherical geometry possesses unique difficulties which result in a performance of relatively low caliber. Other subjects related to this problem are also discussed, such as shielding, Fresnel and Fraunhofer regions, microwave absorption, and reciprocity within the chamber. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 24, 1961
- Accession Number
- AD0259298
Entities
People
- E.h. Wintermute
- R.e. Wolfe
Organizations
- HRB Systems