Equilateral Technologies Inc. Engineers from Equilateral Technologies will present the latest advances in automatically generating 3D antenna patterns from 2D cross sections at the 28th Annual Symposium of the Antenna Measurement Techniques Association (AMTA), to be held October 22-27, 2006 in Austin, TX.
The presentation will show a generalized nonlinear interpolation technique for generating 3D antenna radiation patterns from 2D cross sections. Such pattern generation is needed, as most of the patterns provided by antenna manufacturers are only available as vertical and horizontal cross sections. Accurate propagation calculations, however, require gain values at arbitrary orientations, corresponding to points on a 3D gain surface. Current methods of generating such a gain surface can often lead to pronounced mathematical artifacts.
The presentation, entitled “Nonlinear Interpolation Technique for Generating 3D Antenna Radiation Patterns”, by P. Vicharelli and D. Fagen, proposes a new nonlinear algorithm. The new approach mitigates, and in most cases eliminates, the artifacts produced by other methods. The new method is fast, yields smooth, more realistic surfaces that are consistent with the vertical and horizontal cuts, exhibits diminished mathematical artifacts, and improves the accuracy of propagation calculations of radio frequency signals. Representative examples from the application of the new algorithm to cellular base station antenna patterns will be presented.