Abstract
The paper presents design of 60GHz parallel coupled-line filters with Chebyshev passbands. Etching limit of printed circuit board technology has been taken into account and analyzed. Three filters, the center operation frequency are all 60GHz, are designed with pre-distortion based on the law of fabrication tolerances, including two conventional parallel coupled-line filters and a V-shaped one which has the advantage of input and output at the same horizontal. The comparison, between measured results with the simulation and post-simulation results based on physical dimensions of fabricated filters covered actual etched size, is presented. It is verified that the V-shaped parallel coupled-line filter after considering fabrication tolerance has a good performance and could apply to millimeter wave system.
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