Pre-Detection Sensing With Multistage Low-Pass Type Negative Group Delay Circuit

Ravelo, Blaise; Wan, Fang; Yuan, Zhongzhu; Rajaoarisoa, L.

doi:10.1109/jsen.2022.3172881

Cited by 8 publications

(3 citation statements)

References 35 publications

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“…Some LP-NGD circuit design potential applications for low-frequency sensors and actuators [111][112][113] In addition to RF and microwave communication system, innovative ideas of LP-NGD application were also initiated. For example, it was experimentally demonstrated that the LP-NGD circuit permits:…”

Section: Chapter I 27mentioning

confidence: 99%

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High Sensitivity Envelope Detector Assisted by Microwave Photonics

Gonçalves¹,

Ivo²,

Coutinho³

2022

Smart Systems: Theory and Advances

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Theory and Advances is licensed under CC BY 4.0.This license requires that reuses give credit to the creator. It allows reusers to distribute, remix, adapt, and build upon the material in any medium or format, even for commercial purposes.The content of the work and its data in its form, correctness and reliability are the sole responsibility of the authors, and do not represent the official position of Amplla Publishing. Downloading and sharing of the work is permitted as long as credit is given to the authors. All rights to this edition were ceded to Editora Amplla.

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Section: Chapter I 27mentioning

confidence: 99%

“…• To pre-detect sensored signals with possibility to increase time-advance with multi-stage LP-NGD circuits [113].…”

Section: Chapter I 27mentioning

confidence: 99%

High Sensitivity Envelope Detector Assisted by Microwave Photonics

Gonçalves¹,

Ivo²,

Coutinho³

2022

Smart Systems: Theory and Advances

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“…The unfamiliar negative group delay (NGD) function is expected to be useful to improve certain imperfections of communication front-end systems by means of delay compensation (Broomfield and Everard, 2000;Ravelo et al, 2016), sensor predetection effect (Ravelo et al, 2022d) and frequency-independent phase shifter design (Ravelo, 2014;Ravelo et al, 2022cRavelo et al, , 2022b. Other applications of NGD function were proposed for the antenna array design (Zhu and Wu, 2019) and signal distortion correction by reducing the delay effect (Ravelo et al, 2020a(Ravelo et al, , 2021a(Ravelo et al, , 2021b.…”

Section: Introductionmentioning

confidence: 99%

High-pass negative group delay analysis of single capacitor three-port circuit

Murad

Jaomiary²,

Yazdani³

et al. 2023

COMPEL

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Purpose This paper aims to develop high-pass (HP) negative group delay (NGD) investigation based on three-port lumped circuit. The main particularity of the proposed three-port passive topology is the consideration of only a single circuit element represented by a capacitor. Design/methodology/approach The methodology of the paper is to consider the S-matrix equivalent model derived from admittance matrix approach. So, an S-matrix equivalent model of a three-port circuit topology is established from admittance matrix approach. The frequency-dependent basic expressions are explored to perform the HP-NGD analysis. Then, the existence condition of HP-NGD function type is analytically demonstrated. The specific characteristics and synthesis equations of HP-NGD circuit with respect to the desired optimal NGD value are established. Findings After computing the frequency expressions to perform the HP-NGD analysis, this study demonstrated the existence condition of HP-NGD function type analytically. The validity of the HP-NGD theory is verified by a prototype of three-port circuit. The proof-of-concept (POC) single capacitor three-port circuit presents an NGD response and characteristics from analytical calculation and simulation is in very good correlation. Originality/value An innovative theory of HP-NGD three-port circuit is studied. The proposed HP-NGD topology is constituted by only a single capacitor. After the topological description, the S-matrix model is established from the Y-matrix by means of Kirchhoff voltage law and Kirchhoff current law equations. A POC of single capacitor three-port circuit was designed and simulated with a commercial tool. Then, a prototype with a surface-mounted device component was fabricated and tested. As expected, simulation and measurement results in very good agreement with the calculated model show the feasibility of the HP-NGD behavior. This work is compared to other NGD-type function with diverse number of ports and components.

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Predictive Iterative Learning Control for Systems with Unknown Time Delay

Lei

Tian

et al. 2023

Intelligent Control and Learning Systems

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Pre-Detection Sensing With Multistage Low-Pass Type Negative Group Delay Circuit

Cited by 8 publications

References 35 publications

High Sensitivity Envelope Detector Assisted by Microwave Photonics

High Sensitivity Envelope Detector Assisted by Microwave Photonics

High-pass negative group delay analysis of single capacitor three-port circuit

Predictive Iterative Learning Control for Systems with Unknown Time Delay

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