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Bandpass NGD analysis of symmetric lumped Y-tree via tensorial analysis of networks formalism

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  • Jamel Nebhen
  • Blaise Ravelo

Abstract

This paper develops an original theory of bandpass (BP) negative group delay (NGD) function from three-port symmetric circuit. The BP NGD analysis is applied first time to three-port topology. The present study develops originally a BP NGD investigation of three-port circuit constituted by R, L and C lumped components. The equivalent S-matrix modelling is elaborated with the uncommon circuit theory. To validate the theory, a lumped circuit proof of concept is designed and simulated. A group delay value of about −0.3 ns is observed at the NGD centre frequency of about 76 MHz over 214 MHz bandwidth. For the further understanding on the BP NGD behaviour, a parametric study with the variations of the resistor, inductor and capacitor components of the Y-tree is performed. The results of the present study guarantee a potential microwave communication application of BP NGD function notably for systems operating with ISM and IEEE 802.11 standards.

Suggested Citation

  • Jamel Nebhen & Blaise Ravelo, 2021. "Bandpass NGD analysis of symmetric lumped Y-tree via tensorial analysis of networks formalism," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 35(16), pages 2125-2140, November.
    • Handle: RePEc:taf:tewaxx:v:35:y:2021:i:16:p:2125-2140
    DOI: 10.1080/09205071.2021.1934570
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