Answers are grounded in this paper and cite their sources.
A single-ridged waveguide with a symmetrical longitudinal trough below the ridge, designated as a ridge-trough waveguide (RTW) has been recently proposed as a wafer probe. The authors have theoretically calculated the cutoff, bandwidth, and impedance characteristics of this modified single-ridged waveguide in two different configurations using the Ritz-Galerkin technique and different domain decompositions. The results indicate that a RTW can be a low impedance broad-band structure.
No takes yet. Share an insight, caveat, or question.
Guha et al. (1997) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: