New trends in high-frequency techniques and hybridizations

In this chapter, a fast MoM-PO hybrid framework, including EI-MoM-PO, AIM acceleration, and half-space solutions, is presented as an exemplar of recent trends in high-frequency techniques and hybridizations. The beauty of the presented fast MoM-P0 framework is that its solution process clearly follows the underlying physics of the MoM-PO hybridization, where source-platform interactions are physically described. Besides, considering fl exibility and extendibility of the framework, one can easily replace AIM by any other suitable fast algorithms, in accordance with the properties of the complex structures under investigation.