Extension of Plane-Wave Scattering-Matrix Theory of Antenna - Antenna Interactions to Three Antennas: A Near-Field Radar Cross Section Concept
Abstract
This paper presents a three-antenna plane-wave scattering-matrix (PWSM) formulation and a formal solution. An example will be demonstrated in which two of the three antennas as electromagnetically identical (the transmitter and receiver) and the third (the scatterer) has arbitrary electromagnetic properties. Reduced reflection integral-matrix will be discussed which describes the transmit, scatter, receive (TSR) interaction. An antenna scatterer spectral tensor Greens function is identified. In this formulation the transmit spectrum will be scattered by the third arbitrary antenna (target) and this scattered spectrum may be considered to have originated from a transmitting antenna. Near-field antenna measurement techniques are applicable which determine the electric (scattered) field spectral density function. If a second deconvolution is applied, a transmit probe corrected spectral density function or scattering tensor can be determined in principle. In either case, a near- or far-electric field can be calculated and a radar cross section determined.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1985
- Accession Number
- ADP004637
Entities
People
- M. A. Dinallo
Organizations
- Braddock Dunn & McDonald