Results 41 to 50 of about 446,810 (257)

Dual-Band Negative Group Delay Microwave Circuit With Low Signal Attenuation and Arbitrary Frequency Ratio

IEEE Access, 2020
A dual-band negative group delay (NGD) microwave circuit with low signal-attenuation and arbitrary frequency ratio is proposed. Closed-form analytical equations are derived for the design of the proposed dual-band negative group delay circuit (NGDC) with
Yuwei Meng, Zhongbao Wang, Shaojun Fang, Te Shao, Hongmei Liu, Zhining Chen   +5 more
doaj   +1 more source

Theory and Original Design of Resistive-Inductive Network High-Pass Negative Group Delay Integrated Circuit in 130-nm CMOS Technology

IEEE Access, 2022
This paper develops an original design method of high-pass (HP) negative group delay (NGD) integrated circuit (IC). The considered HP-NGD IC is based on a passive topology which is essentially composed of resistor-inductor (RL) network.
Mathieu Guerin, Wenceslas Rahajandraibe, Glauco Fontgalland, Hugerles S. Silva, George Chan, Fayu Wan, Preeti Thakur, Atul Thakur, Jaroslav Frnda, Blaise Ravelo   +9 more
doaj   +1 more source

A note on the bandwidth of negative group delay filters

International Journal of Circuit Theory and Applications
SummaryAn updated definition of group delay bandwidth in analog filters is introduced in this work. Unlike existing definitions, this new definition considers simultaneously the value of the group delay and filter gain, leading to minimized distortion in the filter output.
Julia Nako, Costas Psychalinos, Ahmed S. Elwakil, Brent J. Maundy   +3 more
openaire   +1 more source

Bridging the Gap in Neuroblastoma Care: Consensus‐Based Statements With Recommendations for Improved Patient and Caregiver Experiences

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Neuroblastoma's complex, heterogeneous biology poses significant diagnostic and therapeutic challenges, often requiring caregivers to absorb complex information and participate in time‐sensitive decisions. However, caregivers often feel unprepared to evaluate options.
Vickie Buenger, Joseph Bauer, Jennifer Diamond, Maggie Fader, Shae Hansen, Jacqueline M. Kraveka, Johanna Schoen, Amber Shearer, Dena Sherwood   +8 more
wiley   +1 more source

Implementing negative group delay by using SSPP units with equivalent single negative permeability

Alexandria Engineering Journal
Classic circuits for spoof surface plasmon polaritons (SSPPs) usually introduce positive group delay, which leads to problems such as broadening of the pulse signal. In this regard, the SSPP structure with negative group delay (NGD) can be constructed to
Guodong Lu, Yuheng Li, Weiwen Li
doaj   +1 more source

Sociodemographic Factors Associated With Later Stage at Diagnosis of Pediatric Germ Cell Tumors: A Report From Children's Oncology Group Registries ACCRN07 and APEC14B1

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Germ cell tumors (GCTs) often arise in the ovaries and testes (extracranial) but can also develop in the brain (intracranial). We examined the relationship of individual, family, and community‐level socioeconomic status (SES) with stage of disease at diagnosis in a cohort of pediatric patients with GCT from Children's Oncology Group
Heydon K. Kaddas, Judy Y. Ou, Todd Alonzo, Logan G. Spector, Negar Fallahazad, Emily Owens, Anne C. Kirchhoff, Adam L. Green   +7 more
wiley   +1 more source

Novel Bandstop Filter With Improved Flat NGD Characteristics and Signal Attenuation in Passband

IEEE Access
A bandstop filter with flat negative group delay (NGD) is proposed. The flatter NGD and reduced insertion loss have been achieved in the passband of the bandstop filter.
Aixia Yuan, Niannan Chang, Junzheng Liu, Zhenping Lan, Yuwei Meng, Xinqi Guo   +5 more
doaj   +1 more source

Lossy Coupling Matrix Synthesis Approach for the Realization of Negative Group Delay Response

IEEE Access, 2018
In this paper, a systematic synthesis approach is proposed for achieving negative group delay responses using lossy coupling matrix. It is mathematically proved that, for a passive and reciprocal network, loss is the necessary condition to realize a ...
Ranjan Das, Qingfeng Zhang, Haiwen Liu
doaj   +1 more source

Electromagnetic Cavity Resonance Equalization With Bandpass Negative Group Delay

IEEE Transactions on Electromagnetic Compatibility, 2021
This article deals with an original equalization method of 3-D electromagnetic (EM) cavity resonance by using bandpass negative group delay (NGD) function. Based on the equivalent circuit, the S -matrix model of the equalized EM cavity is introduced. The design equations of the NGD function are established in function of the cavity physical parameters.
Ravelo, Blaise, Lalléchère, Sébastien, Rahajandraibe, Wenceslas, Wan, Fayu   +3 more
openaire   +3 more sources

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source