Results 11 to 20 of about 9,446,943 (295)

Ultra Wideband High-Efficiency High-Power Amplifier Design by Simplified Output Matching Technique

open access: yesElectrica
This paper presents the design of a Gallium Nitride (GaN) transistor-based ultra-wideband (UWB) high-efficiency power amplifier (PA) with 25W (44 dBm) output power operating in the 2–6 GHz frequency band. The design of the matching circuits is based on a
Engin Çağdaş   +2 more
doaj   +2 more sources

: Linearity Enhanced High Efficiency Power Amplifier [PDF]

open access: yes, 2022
This paper presents a new class of power amplifier (PA) - Class-iF- 1 - resolving the highly nonlinear double inflection characteristics in the conventional Class-F- 1 PA.
Zhu, Anding   +7 more
core   +1 more source

Power efficient and sparse spanner for wireless ad hoc networks [PDF]

open access: yesProceedings Tenth International Conference on Computer Communications and Networks (Cat. No.01EX495), 2001
Due to the limited resources available in the wireless ad hoc networking nodes, the scalability is crucial for network operations. One effective approach is to maintain only a sparse spanner of a linear number of links while still preseving the power-efficient route for any pair of nodes.
Xiang-Yang Li 0001   +2 more
openaire   +2 more sources

Power Efficient Connected Topologies in Ad Hoc Networks

open access: yes10th IEEE Symposium on Computers and Communications (ISCC'05), 2005
Power efficient topologies in an ad-hoc network can reduce battery usage and increase the lifetime of a network. Topology control algorithms including a local minimum spanning tree (LMST), distributed relative neighbourhood graph (DRNG) and K-Neigh graphs are computed by using the location or the distance information of the network nodes.
Gaurav Srivastava 0003   +2 more
openaire   +2 more sources

A 20W ka-band radial solid-state power amplifier with 20% associated power-added efficiency

open access: yes, 2013
International audienceThis paper presents a high power and high efficiency Ka-band Solid-State Power Amplifier based on the uses of an efficient radial power-combining structure for space applications. This design was validated by the measurement of a 16-
Richard, Jacques   +6 more
core   +3 more sources

Development of Efficient High Power Amplifier With More Than an Octave Bandwidth

open access: yesIEEE Access, 2018
This paper presents a design of a GaN HEMT-based power amplifier (PA), with enhanced efficiency and linearity over the operation band from 0.5 to 1.5 GHz. The design is based on wideband load-pull and source-pull analysis.
Waqar Ahmad Malik   +2 more
doaj   +1 more source

One watt gallium arsenide class-E power amplifier with a thin-film bulk acoustic resonator filter embedded in the output network

open access: yesThe Journal of Engineering, 2015
Integration of a class-E power amplifier (PA) and a thin-film bulk acoustic wave resonator (FBAR) filter is shown to provide high power added efficiency in addition to superior out-of-band spectrum suppression.
Kyle Holzer, Jeffrey S. Walling
doaj   +1 more source

A L-BAND 50-WATT GaAs Power FET with 58% power added efficiency [PDF]

open access: yes, 2000
High efficiency 50W GaAs power device h s been developed using two high bre kdown voltage G As FET chips that have an AlGaAs/GaAs heterostructure.Circuit designing considerations include the termination of the second-harmonics for improved power added ...
Ui, Norihiko   +3 more
core   +1 more source

AlGaN/GaN-HEMT power amplifiers with optimized power-added efficiency for X-band applications [PDF]

open access: yes, 2011
This work has arisen out of the strong demand for a superior power-added efficiency (PAE) of AlGaN/GaN high electron mobility transistor (HEMT) high-power amplifiers (HPAs) that are part of any advanced wireless multifunctional RF-system with limited ...
Kühn, Jutta
core   +2 more sources

A 28-GHz Cascode Inverse Class-D Power Amplifier Utilizing Pulse Injection in 22-nm FDSOI

open access: yesIEEE Access, 2020
Current Mode Class-D (CMCD) Power Amplifiers are of particular interest in outphasing transmitters or Doherty configuration. This is because the output capacitance can be absorbed in the RLC output matching network and 100% theoretical efficiency.
Nourhan Elsayed   +3 more
doaj   +1 more source

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