Study to Obtain Design Data for Reentry ECM Antenna Systems. Volume 1
Abstract
This report is the first quarterly technical report under this study of reentry effects associated with the transmission of electronic countermeasure (ECM) signals. Illustrative results for the aerothermochemical properties are presented for typical slender-body reentry conditions. These results were obtained from an approximate nonequilibrium inviscid shock layer flow field solution, which utilizes a combination of reacting streamtube and equilibrium flow field solutions. A discussion of the calculation method is included. Literature surveys in the area of theory of antennas and propagation are summarized. (Types of ECM antennas in common use are discussed in Volume II.) Methods of calculating near-field distribution of antennas are discussed in a general way. Theoretical analyses of linear plasma effects are surveyed. Antenna breakdown is considered in terms of both the static air environment and the reentry environment. The theories of nonlinear propagation effects are summarized and finally a review of some alleviation techniques is given. In general, it appears that nearly all of the important reentry effects on antennas and propagation can be reasonably well characterized using existing theory. However, parametric evaluation using these theories will have to be completed before this conclusion can be affirmed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1967
- Accession Number
- AD0820329
Entities
People
- Arthur K. Jordan
- Daniel L. Mcmenamin
- Paul E. Bisbing
- Paul M. Scherer
- Walter Sawchuk
Organizations
- General Electric