Abstract
This paper presents a method that takes advantage of the independence of the top metal plate in Gap Waveguide (GW) topologies to overcome the problem of response deviation due to manufacturing tolerances, common at mm-wave frequencies. At each iteration of an Aggressive Space Mapping (ASM) optimization process, several tuning metal insertions are placed in the top plate to correct the component response. By doing so, the bottom piece, much more complex, is re-used. Since metal contact is not required in GW, the manufactured top piece is easily re-assembled. A narrow-band filter centered at 60 GHz has been designed with the presented method showing promising results.
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