SSPP Transmission System With Negative Group Delay and Power Compensation

IF 4 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2025-04-25 DOI:10.1109/TCSII.2025.3564569

Guodong Lu;Qi Kang;Weiwen Li

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引用次数: 0

Abstract

The advanced signal output based on negative group delay (NGD) plays a pivotal role in real-time communication and sensing applications. However, the implementation of NGD often results in significant signal attenuation. Spoof surface plasmon polariton (SSPP) units with tightly coupled structures are capable of generating NGD near the sidebands. Building on this principle, an NGD SSPP unit is proposed in this brief by utilizing tightly folded structures. The NGD SSPP unit is integrated into the classical SSPP waveguide with an H-shaped unit to control the transmission group delay. This waveguide configuration facilitates the advanced output of double-sideband modulation signals. Nevertheless, the generation of negative group delay is also typically accompanied by considerable transmission losses. To address this challenge, a low-noise amplifier is designed for power compensation. The SSPP waveguide with the NGD unit is then cascaded with the low-noise amplifier, resulting in an SSPP transmission system with power compensation for the NGD signal.

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具有负群延迟和功率补偿的SSPP传输系统

基于负群延迟（NGD）的先进信号输出在实时通信和传感应用中起着至关重要的作用。然而，NGD的实施往往会导致显著的信号衰减。具有紧密耦合结构的欺骗表面等离子激元（SSPP）单元能够在边带附近产生NGD。基于这一原则，本文通过使用紧密折叠的结构提出了NGD SSPP单元。NGD SSPP单元集成在经典SSPP波导中，采用h形单元控制传输组延迟。这种波导结构有利于双向带调制信号的高级输出。然而，负群延迟的产生通常也伴随着相当大的传输损失。为了解决这一挑战，设计了一种低噪声放大器用于功率补偿。然后，带NGD单元的SSPP波导与低噪声放大器级联，形成具有NGD信号功率补偿的SSPP传输系统。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Circuits and Systems II: Express Briefs 工程技术-工程：电子与电气

CiteScore

7.90

自引率

20.50%

发文量

883

审稿时长

3.0 months

期刊介绍： TCAS II publishes brief papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes: Circuits: Analog, Digital and Mixed Signal Circuits and Systems Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic Circuits and Systems, Power Electronics and Systems Software for Analog-and-Logic Circuits and Systems Control aspects of Circuits and Systems.