Results 21 to 30 of about 277,685 (261)
Research and Design of an X-Band UHF Power Amplifier
Известия высших учебных заведений России: Радиоэлектроника, 2022 Introduction. A method for designing power amplifiers for use in the transmitting channels of X-band transceiver modules is investigated. The design process was aimed at optimizing the relationship between the basic amplifier characteristics, including ...
Nguyen Xuan Luong +3 more
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Ku-Band CMOS Power Amplifier with Three-Stack Power Stage to Enhance Output Power and Efficiency
Applied Sciences, 2022 In this study, we proposed a power amplifier structure with improved efficiency while securing high output power. First, the characteristics of the common-source and stack structures were investigated. In particular, the output power and output impedance
Junhyuk Yang +5 more
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Power efficient mobile ad-hoc network [PDF]
, 2019 Power efficient network protocols attract a lot of research interests in recent years, especially in the mobile communication environment. The intention of our research topic, "Power Efficient Mobile Ad Hoc Network", is to design the communication protocols with power efficiency as a major concern which will increase the operation time of battery ...
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Design of harmonic tuned power amplifier based on dynamic load-line GaN HEMT model
Dianzi Jishu Yingyong, 2020 Based on the dynamic load-line GaN HEMT large signal model and load-pull technology, a high efficiency harmonic tuned power amplifier operating at 2 GHz is designed and implemented. Under the condition that the parasitic parameters and package parameters
Huang Faliang, You Bin
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On the power efficiency of sensory and ad-hoc wireless networks [PDF]
IEEE International Symposium on Information Theory, 2003. Proceedings., 2003 We consider the power efficiency of a communications channel, i.e., the maximum bit rate that can be achieved per unit power (energy rate). For additive white Gaussian noise (AWGN) channels, it is well known that power efficiency is attained in the low signal-to-noise ratio (SNR) regime where capacity is proportional to the transmit power.
Dana, Amir F., Hassibi, Babak
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Research on load adaptive impedance matching of magnetic resonant wireless power transfer system
Gong-kuang zidonghua, 2020 In view of problem that current impedance matching methods ca't automatically adjust load impedance of magnetic resonant wireless power transfer system(MR-WPT) when load changes, which leads to reduction of energy transfer efficiency of the system, a ...
BAI Jingcai +3 more
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High-Efficiency 200-GHz Neutralized Common-Base Power Amplifiers in 250-nm InP HBT
IEEE Journal of Microwaves, 2023 The analysis, design, and measurement of two Indium Phosphide (InP) heterojunction bipolar transistor (HBT) power amplifier (PA) designs are presented at G-band with record efficiency.
Jeff Shih-Chieh Chien +2 more
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Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Patients with ovarian cancer often present with massive ascites, leading to significant protein loss during surgical procedures. Although cell‐free concentrated ascites reinfusion therapy (CART) is used in palliative settings to mitigate protein loss, its application in intraoperative settings remains unexplored.
Yutaka Yoneoka +7 more
wiley +1 more source
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
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Design of a Doherty Power Amplifier for GSM Systems
Tikrit Journal of Engineering Sciences, 2011 This paper presents the design and analysis of Doherty power amplifier. The Doherty amplifier is used in a base station for mobile system because of its high efficiency.
Saad Wasmi Osman Luhaib
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