Articles
Design Of Wave Ports In FDTD And Its Application To Microwave Circuits And Antennas
August 6, 2010
•White Paper: Design Of Wave Ports In FDTD And Its Application To Microwave Circuits And Antennas
This paper presents a design of wave ports, including rectangular and circular waveguides, coax, microstrip and strip lines within the framework of Remcom's XFdtd® 3D electromagnetic solver. Simulation results are shown for microwave circuits and antennas for validating the wave ports design.
By Yong Wang and Scott Langdon, Remcom Inc.
Introduction
To simulate various transmission lines and their corresponding microwave circuits and antennas in FDTD, we need the excitation sources and S-parameter extraction methods. The excitation source can be discrete source or any source which can generate many modes. The excitation source can also be of any specific mode of the transmission lines although in many cases the fundamental mode is used. If one direction excitation source [1] is used in the simulation, S-parameters can be extracted straightforwardly. However, this method is not suitable to transmission lines when their propagation constants are unknown. For two directional excitation sources, various S-parameter extraction methods have been developed and we discuss some of them as follows.
Click Here To Download:•White Paper: Design Of Wave Ports In FDTD And Its Application To Microwave Circuits And Antennas
