Because of the importance of ultra-wideband (UWB) radar in various applications, short pulse generation in UWB systems has attracted a lot of attention in recent years. In order to shorten the pulse, nonlinear transmission line (NLTL) is imported, which expands the application of step recovery diode (SRD) for pulse generation. Detailed analysis and equations for this SRD and NLTL-based pulse generation are provided and verified by simulation and experimental results. Factors that could cause pulse waveform distortions are also analyzed. The generator circuit presented in this paper generates 130ps and 3.3V pulse, which can be used in UWB radar systems that require sub-nanosecond pulses.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4769274 | PMC |
| http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0149645 | PLOS |
Publication Analysis
Top Keywords
Similar Publications
One-year hemodynamic and clinical outcomes in self-expanding valves: Comparison of ACURATE neo2 versus ACURATE neo.
Cardiovasc Revasc Med
December 2024
Department of Cardiology and Catheterization Laboratories, Shonan Kamakura General Hospital, Okamoto 1370-1, Kamakura City, Kanagawa 247-8533, Japan. Electronic address:
Background/purpose: Transcatheter aortic valve replacement (TAVR) with ACURATE neo2 showed better hemodynamic outcomes by mitigating paravalvular leakage (PVL) compared with ACURATE neo, and revealed promising one-year outcomes in single-arm studies. However, studies comparing the hemodynamic and clinical outcomes of the two valves are still scarce. Therefore, this study aimed to compare the one-year hemodynamic and clinical outcomes between the neo2 and neo.
View Article and Find Full Text PDFHigh-sensitivity cardiac troponin T and N-terminal b-type natriuretic propeptide are associated with cardiac and all-cause mortality in older adults - A population-based ten-year follow-up study.
Clin Chim Acta
December 2024
Southwest Finland Wellbeing Services County, Turku University Hospital Services, Geriatric Medicine, 20521 Turku, Finland; Faculty of Medicine, Department of Clinical Medicine, Unit of Geriatric Medicine, University of Turku and Turku University Hospital, 20700 Turku, Finland.
Background: Cardiac troponin T (cTnT) and N-terminal B-type natriuretic propeptide (proBNP) are mainly used as biomarkers to diagnose specific conditions of the heart, but they also have predictive ability. Our aim was to study their associations with cardiovascular and all-cause mortality in an older population in non-acute conditions.
Methods: A population-based study with a ten-year follow-up.
Long-term outcomes of minimally invasive direct coronary artery bypass vs second generation drug eluting stent for management of isolated left anterior descending artery disease.
Int J Cardiol
December 2024
Department of Cardiac Surgery, Zbigniew Religa Heart Center "Medinet", Nowa Sol, Poland; Department of Cardiac Surgery and Interventional Cardiology, Faculty of Medicine and Medical Sciences, University of Zielona Gora, Zielona Gora, Poland.
Introduction: This study aimed to compare the long-term outcomes in a propensity matched population receiving either minimally invasive direct coronary artery bypass (MIDCAB) using left internal thoracic artery (LITA) to the left anterior descending artery (LAD) or percutaneous coronary intervention using second generation everolismus-eluting stents (DES-PCI) in patients treated for isolated proximal LAD stenosis.
Methods: Between January 2012 and December 2017, 421 patients with a nonemergency status undergoing primary isolated proximal LAD revascularization were retrospectively analyzed and were divided into two groups: 111 patients receiving MIDCAB LITA to LAD and 310 patients receiving DES-PCI. Propensity score matching selected 111 pairs and both groups were comparable for all baseline characteristics and well balanced.
The relationship between residual insulin secretion and subclinical cardiovascular risk indices in young adults with type 1 diabetes.
J Diabetes Complications
December 2024
National and Kapodistrian University of Athens First Department of Propaedeutic and Internal Medicine, Laiko General Hospital Athens, Attiki, Greece.
Background: Patients with type 1 diabetes (DM1), even in the setting of adequate glycaemic control, have an excess risk for developing cardiovascular disease. Residual insulin secretion (RIS), measured by detectable C-peptide levels in patients with DM1, might protect against diabetes-related complications. This study aimed to examine the relationship between residual insulin secretion and prognostic markers of cardiovascular complications in patients with DM1.
View Article and Find Full Text PDFStomach and duodenal ulcer as a cause of death in patients with cancer: a cohort study.
Int J Emerg Med
December 2024
Faculty of Medicine, University of Kalamoon, Al_Nabk, Syria.
Introduction: Non-cancer deaths are now becoming a significant threat to the health of cancer patients. Death from stomach and duodenal ulcer is linked to cancer due to the side effects of treatment and its pathogenesis. However, guidelines for identifying cancer patients at the highest risk of death from stomach and duodenal ulcer remain unclear.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!