Open AccessModelling of the passive intermodulation in coaxial connectors with broadband signal excitation
Author(s) -
Bi Lingyu,
Gao Jinchun,
Flowers George T.,
Jin Qiuyan
Publication year - 2019
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2019.0705
Subject(s) - intermodulation , broadband , coaxial , signal (programming language) , electronic engineering , excitation , acoustics , polynomial , linearity , power (physics) , computer science , physics , telecommunications , electrical engineering , engineering , mathematics , mathematical analysis , amplifier , programming language , cmos , quantum mechanics
Theoretical calculations and simulations are introduced to explain the passive intermodulation power level rise (PLR) in coaxial connectors with broadband signal excitation for the third‐order intermodulation products. An equivalent model is developed to describe the characteristics of the broadband signals. The non‐linearity of connectors is defined by a polynomial behaviour model. A mathematical model of the PLR is developed. A series of experiments are conducted to verify the proposed models. The experimental results agree well with the analytic results, having a mean difference of 0.6 dB.