Modelling the pin gap effect in coaxial connectors

Author

Zhu, Qian C. ; Ji, Yu

Author_Institution

Nat. Meas. Inst., Lindfield, NSW, Australia

fYear

2012

fDate

1-6 July 2012

Firstpage

104

Lastpage

105

Abstract

A model using equivalent shunt susceptance is proposed to characterise the pin gap effect in pin and socket type coaxial connectors. An empirical formula for the susceptance as a function of the gap parameters has been deduced using numerical simulation for five different metrology grade precision connectors. The simplicity of the pin gap model permits easy embedment in Vector Network Analyser (VNA) measurement modelling. The reflection coefficient due to pin gaps in a beadless air line has been calculated using the model and compared with measurement results. The comparison indicates significant contribution of the pin gap effect to VNA measurement uncertainty.

Keywords

electric connectors; measurement uncertainty; network analysers; numerical analysis; VNA measurement modelling; beadless air line; equivalent shunt susceptance; gap parameter function; measurement uncertainty; metrology grade precision connector; numerical simulation; pin gap effect model; pin type coaxial connector; reflection coefficient; socket type coaxial connector; vector network analyser measurement modelling; Atmospheric modeling; Conductors; Numerical models; Reflection; Shunt (electrical); Sockets; Coaxial connector; VNA error; VNA measurement; connector effect; pin gap;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM), 2012 Conference on

Conference_Location

Washington, DC

ISSN

0589-1485

Print_ISBN

978-1-4673-0439-9

Type

conf

DOI

10.1109/CPEM.2012.6250682

Filename

6250682