Dynamic Impedance Matching in Conformal Arrays.
Abstract
Several topics relating to conformal arrays have received detailed attention in the last few years. These topics include pattern synthesis, types of appropriate radiating elements, and their impedance and mutual coupling characteristics, and wide angle scanning of linear arrays located on planar and conical surfaces. In the present report, the computation of an exact element pattern is described. The report begins with the general expressions for two potential functions representing the modal fields of arbitrary apertures on a conducting cone. Expressions for the electric field components are then derived from the potential functions for circumferential and radial slots with particular slot excitations. The field expressions are the basis for a computer program which computes radiation patterns from both circumferential and radial slots. The appropriate approximations for the Legendre functions and the spherical Bessel functions used for their computations are summarized in this report. The computer program is a modification and extension of one described by Pridmore-Brown and has been executed on the IBM 370 computer system, now operational at the Hughes Aircraft Company. The program computes the special functions in DOUBLE PRECISION, thus giving the required accuracy of the computations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1974
- Accession Number
- ADA044818
Entities
People
- Alfred T. Villeneuve
- Peter C. Bargeliotes
- Wolfgang H. Kummer
Organizations
- Hughes Aircraft Company