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Seyede Yalda Torabi

Yalda Torabi, Gholamreza Dadashzadeh
2-D Equivalent Source Method for a Finite Periodically Loaded Multiconductor Transmission Line Analysis With an Application to EBG Power Distribution Networks
Abstract


A novel theoretical model based on an equivalent source method and a modal superposition technique is proposed to derive a dyadic Green's function for two-dimensional (2-D) finite periodically loaded multiconductor transmission lines (MTLs) to efficiently analyze electromagnetic band gap (EBG) structures embedded in power distribution networks (PDNs) for noise suppression. Many of such structures can be easily modeled using an MTL model with periodically loaded series and shunt components. By treating each periodic load as an equivalent local current source at the center of each unit cell, based on equivalent source theory, a finite uniform 2-D MTL excited by a group of equally spaced equivalent current sources is obtained. The amplitude of these local exciting sources may be analytically evaluated for the modes in the structure. Upon identifying these local equivalent current sources, a simple analytical expression for the 2-D dyadic Green's function is derived based on the modal superposition technique. For validation, a mushroom-type EBG structure embedded in a typical PDN is examined using the proposed approach and comparison with full-wave simulations and measurements are presented.

 

 

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