Analysis of line to line coupled coplanar waveguides with W-shaped conductor backing using conformal mapping method

Abstract

A W-shaped microshield coupled parallel coplanar waveguide (CP CPW), which is a new type of CP CPW, is proposed. Closed-form expressions are presented for calculating the quasistatic parameters of this coupled structure by using conformal mapping techniques. The effect of the W-shaped conductor backing on the coupling between CPWs is also discussed. Comparisons are made between the present numerical results and the results available in the microwave literature for CPW V-shaped microshield coupled lines (CWVMCLs) and CP CPWs with a flat conductor backing. In addition, the coupling coefficient of the coupled CPWs is shown to be significantly lower than that of the CWVMCLs in the literature.

Investigation of annular ring microstrip antenna using conformal mapping

“…In, 21 the conformal mapping technique has been utilized to investigate groove waveguide. The conducting loss, coupling coefficient and mode impedance of the coplanar waveguide have been obtained using the conformal mapping technique 22‐24 . This technique has also been applied to calculate the characteristic impedance for different planar shapes and the non‐planar microstrip lines 25‐27 .…”

Coupling Characterization of Self-Shielded Coplanar Waveguides (SCPWs)

“…In order to capture the impedance characteristics of some V-shape SCPWs, the analytic method of conformal mapping has been often employed, as shown in [11][12][13]. Further, in order to analyse the wideband dispersion characteristics of most SCPWs, numerical characteristics of some SCPWs, such as edge-coupled rectangular, V-shape, and trapezoidal geometries.…”