Propagation Modeling of Near Ground Radio Signals

Period of Performance: 02/06/2008 - 02/06/2010


Phase 2 SBIR

Recipient Firm

Emag Technologies, Inc.
775 Technology Dr. Suite 300
Ann Arbor, MI 48108
Principal Investigator


The objective of this Phase II Small Business Innovation Research (SBIR) project is to develop an advanced simulation tool for the modeling of near ground radio wave propagation. The new algorithms will incorporate ground waves in addition to space ways in a shoot-and-bounce-rays (SBR) simulator that is part of EMAG Technologies 3D electromagnetic simulation environment, EMLOUNGE. This is hybridized with a full-wave simulator based on the versatile Finite Difference Time Domain (FDTD) technique. The latter simulator can handle complex radiators and scatterers in the presence of a multilayer lossy ground. The two simulation engines are integrated within a common 3D CAD modeling environment with extensive visualization tools.