Optimizing CPW to MSL transition in the mm domain thanks to the LP filter theory

Abstract

Thanks to the help of the low pass (LP) filter theory, we propose in this study a simple design methodology to optimize a coplanar waveguide (CPW) to microstripline (MSL) transition. This transition will be analyzed like a T LC network. The layout of the CPW to MSL transition will be tuned in the aim that the T network will be equivalent to a 3rd order Chebyshev low pass (LP) filter up to a given frequency cutoff set in the mm wave domain.