DOPPLER ANTENNA INVESTIGATION
Abstract
This report presents the results of a study dealing with the effects of factors such as high temperature and vehicle maneuvers on a rectangular flat plate slot array antenna for lift-reentry vehicles. Specifically, the study consisted of two parts. The first part dealt with an investigation of slot closure techniques which will preserve the electrical performance of the antenna under severe environmental conditions. This consisted of a materials study to determine suitable metals and dielectric materials which have compatible thermodynamic characteristics up to temperatures of 2500F. The second part of the study consisted of an investigation of the problem of beam stablization in the presence of vehicle pitch, roll and yaw maneuvers. Two aspects of the problem were considered. First, the regions within which beam pointing control is required were determined by applying various combinations of pitch and roll to the vehicle carrying the antenna. Second, for the type of antenna being considered, the region of possible beam positions was investigated. Devices and techniques for accomplishing the beam positioning were also considered. The high temperatures of the antenna and components ruled out the use of most conventional phase shifting devices.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1964
- Accession Number
- AD0603059
Entities
People
- A. T. Villeneuve
- F. G. Terrio
- L. E. Gates Jr.
- P. M. Winslow
- W. H. Wheeler
Organizations
- Hughes Aircraft Company