Abstract
A method for determination of input impedance of meander slow-wave system with additional shields is presented. It is based on a technique used for a calculation of frequency characteristics of helical slow-wave systems. The input impedance was determined at two ports: on the edge and in the centre of a system. S11 parameter is known as the input reflection coefficient, so system‘s input impedance in the lower frequencies can be determined by changing the signal source and load resistances until minimum value of S11 parameter is obtained. Using proposed method frequency characteristics of input impedance and S11 parameter of a meander slow-wave system with additional shields is analysed in Sonnet software. DOI: http://dx.doi.org/10.5755/j01.eee.20.3.6678
Highlights
Meander slow-wave systems are planar structures that can be manufactured using standard monolithic microwave integrated circuit (MMIC) fabrication technologies
In order to reduce the electromagnetic interaction, additional shields are inserted between adjacent meander conductors and connected to an external shield by vias
It can be seen that resistance of the input impedance on the edges of investigated system remains almost constant in a frequency range up to 1.5 GHz and has a value of 48 Ω
Summary
Meander slow-wave systems are planar structures that can be manufactured using standard monolithic microwave integrated circuit (MMIC) fabrication technologies. In this paper a method for determination of input impedance of meander slow-wave system with additional shields using Sonnet® software is presented.
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