Multiscale Auxiliary Sources for Modeling Microwave Components

Abstract

This chapter presents multiscale auxiliary sources mainly used to solve complex electromagnetic problems, especially those that insert localized elements into circuits. Several equivalence relations (field-circuit) are established to simplify and make more accurate electromagnetic calculations by changing some characteristics of the localized elements known by their field representation as “voltage-current” representation and vice versa. Various examples are illustrated to show the effects of auxiliary sources in planar circuits containing localized elements (dipoles, diodes, transistors) in the millimeter and terahertz bands. An example of a graphene or Gold dipole is demonstrated in this approach. Another typical example of a diode integrated in a radiating structure is also simulated.

Electromagnetic Analysis of Periodic Iris-Fed Patch Antenna Array Using Fast and Efficient Hybrid Analytical Approach

“…The virtual or adjustable sources defined by the discontinuity surfaces of current density or electric field type represents the test functions and they are expressed as follows [12]:…”