Suitability of passive RC-network-based inductorless bridged-T as a bandpass NGD circuit
Author:
Lalléchére Sébastien,Nebhen Jamel,Liu Yang,Chan George,Fontgalland Glauco,Rahajandraibe Wenceslas,Wan Fayu,Ravelo Blaise
Abstract
Purpose
The purpose of this paper is to study, a bridged-T topology with inductorless passive network used as a bandpass (BP) negative group delay (NGD) function.
Design/methodology/approach
The BP NGD topology under study is composed of an inductorless passive resistive capacitive network. The circuit analysis is elaborated from the equivalent impedance matrix. Then, the analytical model of the C-shunt bridged-T topology voltage transfer function is established. The BP NGD analysis of the considered topology is developed in function of the bridged-T parameters. The NGD properties and characterizations of the proposed topology are analytically expressed. Moreover, the relevance of the BP NGD theory is verified with the design and fabrication of surface mounted device components-based proof-of-concept (PoC).
Findings
From measurement results, the BP NGD network with −151 ns at the center frequency of 1 MHz over −6.6 dB attenuation is in very good agreement with the C-shunt bridged-T PoC.
Originality/value
This paper develops a mathematical modeling theory and measurement of a C-shunt bridged-T network circuit.
Subject
Electrical and Electronic Engineering,Industrial and Manufacturing Engineering
Reference30 articles.
1. A new CFOA-based negative group delay cascadable circuit;Analog Integrated Circuits and Signal Processing,2018
2. Analog television transmitters,2013
3. Synthesis for negative group delay circuits using distributed and second-order RC circuit configurations;IEICE Transactions on Electronics,2009
4. LC filter design,1997
5. Time-domain nature of group delay;Chin. Phys. B,2015