Analysis of flared slot antennas for phased array applications

The application of the transmission line matrix (TLM) method to analyzing flared notch elements in an infinite array environment is presented. The correlation between measured and computed return loss data is examined and shown to be excellent. It is concluded that generalized electromagnetic simulation tools such as TLM are allowing analysis of complex antenna element types such as printed circuit flared notch elements. By imposing appropriate periodic boundary conditions, phased array environments can be simulated. Since the analysis is performed in the time domain, broadband frequency response is obtained in one computer run. The code also allows improved understanding of the complex behavior of radiating elements in an array environment.<>