Abstract
Substrate Integrated Waveguide (SIW) is a rectangular waveguide (RWG) with two periodic cylinder side walls (via holes) instead of solid metallic walls. Recently SIW technology became very attractive as it combines the easy integration of the planar technologies with the low loss property of the RWG. In this paper, we are interested in the assessment of the characteristic impedance and the propagation constant of an SIW transmission line. Particularly, a comparative study between the analytical determination of these parameters and their estimation using electromagnetic (EM) finite element based simulations is presented.
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