An EFIE-TD Solver for Thin-wire Structures with Time-varying Loads

Time-varying discrete loads in antennas/scatterers are used to introduce remarkable electromagnetic properties in comparison to their unloaded counterparts. To further explore these capabilities, an efficient numerical procedure to include time-varying passive loads for thin-wire structures modeled by means of an electric-field time-domain integral-equation (EFIE-TD) is presented in this work. The passive loads in this framework are solved by using a transient modified nodal analysis (MNA) technique. Numerical results illustrates remarkable effects of these structures, such as a non-linear frequency redistribution of source energy which effectively integrates mixer and antenna properties in a single device.