Analysis of Hybrid Meander Structures with Additional Shields

Abstract

Models of hybrid meander structures with additional shields are presented in this paper. The influence of additional shields and their grounding positions on the electromagnetic characteristics of the hybrid meander structures was investigated. Three-dimensional models were created and analyzed using the method of moments (MoM) in the Sonnet® and finite-difference time-domain (FDTD) method in CST Microwave Studio® commercial software packages. The computer-based modeling was verified by physical experiment. The analysis showed that it is possible to control the delay time characteristic using different values of lumped inductive elements without the need to change the overall size of the hybrid meander structure. The delay time varied by 1.2 ns in the range of 1.3 ns to 2.5 ns when the inductivity changed from 1 nH to 10 nH in our investigation. On the other hand, the passband decreased from 2.384 GHz to 0.508 GHz. The additional shields and their grounding positions allowed for increasing the passband by up to 1.6%.

Analysis of Properties of the Multilayer Meander Structures for Wireless Communications

“…Our previous research [40] showed positive features of the meander structures when the passband, delay time, and input impedance characteristics could be controlled without changing the dimensions of the overall meander structure. In this article, the miniaturization task was solved when the overall size of the meander structure was reduced from 16.24 × 17.35 × 0.291 mm till 8.40 × 17.35 × 0.76 mm while maintaining the same electrodynamical parameters of the meander structure.…”

“…On the other hand, the multilayer meander structure under study might be used in the filter technologies in the ISM frequency band, where miniaturization is one of the biggest issues [38,39]. The initial conventional single-layer meander structure is taken from our earlier research [40], whose dimensions are discussed in the materials and methods section. The influence of a routing meander conductor through several layers on the operational parameters of the meander structure is investigated in detail.…”