Advanced Antenna Pattern Prediction Software

Period of Performance: 08/01/2005 - 05/01/2006

$100K

Phase 1 STTR

Recipient Firm

Chew Consulting Incorporated
2510 Stanford Drive
Champaign, IL 61820
Principal Investigator
Firm POC

Research Institution

Iowa State University
1138 Pearson Hall
Ames, IA 50011
Institution POC

Abstract

We propose to develop advanced antenna pattern prediction software using fast algorithm for integral equation. The software will be developed from first principle integral equation solver accelerated by the multi-level fast multipole algorithm. Material effects will be included using volume integral equation and a newly developed thin dielectric sheet model. The model entails full physics, and hence any surface wave effect will be included in the simulation software. The software will be developed with well-tested physics-based preconditioning technique. The preconditioner will greatly reduce the number of iterations needed to solve the integral equation, making the solving of realistic real world problems possible. Because of the acceleration of the integral equation solution by fast solvers, the software for prediction of complex and advance systems can solve millions of unknowns. Also, the use of thin dielectric sheet model makes the modeling of absorption material on the surface of the aircraft simpler, requiring fewer unknowns. Compared to high frequency methods, the software is highly error controllable, allowing accurate simulations. The accuracy can be easily improved by increasing the number of unknowns needed to model the complex geometry. Also, a fast far field algorithm will be use to calculate the radiation pattern rapidly.