Integrated transversal equalizers in high-speed fiber-optic systems

H Wu, JA Tierno, P Pepeljugoski… - IEEE Journal of Solid …, 2003 - ieeexplore.ieee.org
Intersymbol interference (ISI) caused by intermodal dispersion in multimode fibers is the
major limiting factor in the achievable data rate or transmission distance in high-speed …

Maximally flat negative group-delay circuit: A microwave transversal filter approach

CTM Wu, T Itoh - IEEE Transactions on Microwave Theory and …, 2014 - ieeexplore.ieee.org
A comprehensive method to synthesize negative group delay (NGD) in the microwave
regime with a maximally flat response is proposed in this paper. This method is based on …

The (R) evolution of distributed amplifiers: From vacuum tubes to modern CMOS and GaN ICs

G Nikandish, RB Staszewski… - IEEE Microwave …, 2018 - ieeexplore.ieee.org
Broadband amplification of signals is desirable in many applications such as high-speed
data communications, high-resolution imaging systems, optoelectronics, and …

Unconditionally stable non-foster element using active transversal-filter-based negative group delay circuit

T Zhang, R Xu, CTM Wu - IEEE Microwave and Wireless …, 2017 - ieeexplore.ieee.org
This letter introduces a novel type of non-Foster element using a microwave transversal-filter-
based negative group delay (NGD) circuit that can exhibit unconditional stability. The …

Reconfigurable series feed network for squint-free antenna beamforming using distributed amplifier-based negative group delay circuit

M Zhu, CTM Wu - 2019 49th European Microwave Conference …, 2019 - ieeexplore.ieee.org
A new type of tunable series feed network for squint-free antenna beamforming using
microwave distributed amplifier (DA)-based negative group delay (NGD) circuits is …

Radio frequency implementation of the fractional Hilbert transform with transversal filters

L Moura - Circuits, Systems & Signal Processing, 2007 - Springer
In this paper, we discuss the design and the implementation of the fractional Hilbert
transform using transversal filters. To demonstrate the design approach we also present the …

A dual-purpose reconfigurable negative group delay circuit based on distributed amplifiers

CTM Wu, S Gharavi, B Daneshrad… - IEEE microwave and …, 2013 - ieeexplore.ieee.org
In this letter, a novel reconfigurable negative group delay distributed amplifier (NGD-DA)
circuit is proposed. This NGD-DA offers a new method to realize negative group delay. By …

Ultra-broadband common collector-cascode 4-cell distributed amplifier in 250nm InP HBT technology with over 200 GHz bandwidth

S Giannakopoulos, K Eriksson… - 2017 12th European …, 2017 - ieeexplore.ieee.org
An ultra broadband MMIC amplifier is designed using InP double-heterojunction bipolar
transistors and its on-chip measurements are reported. The multi-cell distributed amplifier …

Impact of analog and digital pre-emphasis on the signal-to-noise ratio of bandwidth-limited optical transceivers

Z Zhou, T Odedeyi, B Kelly, J O'Carroll… - IEEE Photonics …, 2020 - ieeexplore.ieee.org
The ever-growing machine-to-machine traffic in data centers has stimulated the increase of
transceiver data rate from 25 Gb/s/λ to 100 Gb/s/λ and beyond. It is believed that advanced …

A CMOS finite impulse response filter with a crossover traveling wave topology for equalization up to 30 Gb/s

J Sewter, AC Carusone - IEEE Journal of Solid-State Circuits, 2006 - ieeexplore.ieee.org
This paper describes a fully differential 3-tap finite impulse response filter in 90-nm CMOS. A
traditional traveling wave filter topology is modified to alleviate its inherent delay-bandwidth …