Analysis and design of continuous-profile circular waveguide mode converters using the coupled-integral-equations technique

The coupled integral equations technique is an excellent tool for the analysis and optimization of continuous-profile circular waveguide mode converters. Its salient features keep the CPU-time requirements within limits and allow the user to arrive at a high-performance design within time frames typical for applications in an industrial environment. The method has been demonstrated with the example of a 60 GHz TE/sub 02/-to-TE(01)-mode converter achieving more that a 60 dB return loss over a five-percent bandwidth.