Results 71 to 80 of about 12,007 (187)
An Ultra-Wideband Digitally Programmable Power Amplifier with Efficiency Enhancement for Cellular and Emerging Wireless Communication Standards [PDF]
, 2016 The design and measurements of a fabricated novel digitally programmable wideband power amplifier (PA) are presented. The PA is made suitable for use in all communication standards, including GSM, 3G, LTE and Femto-cells, offering a bandwidth of several ...
Albasha, Lutfi +7 more
core +3 more sources
Social, Technological, Economic, and Policy Factors in the Circular Economy Transition in Brazil
Sustainable Development, EarlyView.ABSTRACT A well‐functioning circular economy (CE) integrates resilience across economic, environmental, and social dimensions. This study identifies key drivers and barriers to Brazil's CE transition through 20 semi‐structured interviews with stakeholders. Major sociocultural barriers include inadequate education and limited CE awareness, while growing
Alejandro Gallego‐Schmid +9 more
wiley +1 more source
Design of Highly Linear Broadband Continuous Mode GaN MMIC Power Amplifiers for 5G
IEEE Access, 2019 In this paper, we present a design approach for broadband harmonic-tuned monolithic microwave integrated circuit (MMIC) power amplifiers (PAs). Two harmonic matching networks are proposed for the realization of continuous class-B and class-F modes in an ...
Gholamreza Nikandish +2 more
doaj +1 more source
Large signal 2nd harmonic on wafer MESFET characterization [PDF]
, 1990 An automatic test set which performs a real time harmonic load-pull characterization is proposed. An active load technique is used in order to set the load at the test frequency and its harmonics and a complete set of device parameters useful for power ...
A. Ferrero, U. Pisani
core +1 more source
Abacus, EarlyView.Relevance and faithful representation are identified by standard‐setters as fundamental qualitative characteristics for useful accounting information. We critically assess whether current pension measurement guidance under International Financial Reporting Standards (IFRS) and US generally accepted accounting principles (GAAP) results in pension ...
Divya Anantharaman, Darren Henderson
wiley +1 more source
IEEE Access, 2018 This paper presents a $V$ -band Doherty power amplifier (PA) which is implemented in a standard 65-nm CMOS technology. The voltage combination technique is used to realize the millimeter-wave Doherty PA without the $\lambda $ /4 transmission lines.
Dong Chen +5 more
doaj +1 more source
Amplificador de potencia clase F a 1.64 ghz con control de armónicos [PDF]
, 2011 This paper presents a high-power high efficiency PA design method using load pull technique. Harmonic impedance control at the virtual drain is accomplished through the use of tunable pre-matching circuits and modeling of package parasitics. A 0.5 µm
Benavente Peces, César +4 more
core
Improved Reactance-Compensation Technique for the Design of Wideband Suboptimum Class-E Power Amplifiers [PDF]
, 2015 A reactance-compensation technique has been introduced recently for the design of wideband class-E power amplifiers (PAs). With this technique, the load resistance can be transformed to an optimal complex drain impedance in a broad frequency band.
Morris, Kevin +3 more
core +2 more sources
Free Tools—Not So “Free”? The Evolution, Risks and Costs of Fishery Stock Assessment Tools
Fish and Fisheries, EarlyView.ABSTRACT In fisheries stock assessment, free software tools have proliferated in recent years. These tools provide standardised and, in many cases, well‐tested and efficient ways to conduct and support stock assessments, making cutting edge expertise globally accessible.
Natalie Anne Dowling +6 more
wiley +1 more source
Design Of A Doherty Power Amplifier For GSM Systems
Tikrit Journal of Engineering Sciences, 2013 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
doaj