Results 11 to 20 of about 113,694 (304)
Micromachines, 2022 In order to meet the application requirements of radar networks for high efficiency and high second harmonic suppression (SHS) of power amplifiers, this paper proposes a C-band 30 W power amplifier (PA) microwave monolithic integrated circuit (MMIC ...
Fan Yang, Leijun Song, Yuehang Xu
doaj +1 more source
Pulse-density modulation for RF applications: The radio-frequency power amplifier (RF PA) as a power converter [PDF]
2008 IEEE Power Electronics Specialists Conference, 2008 Switching processes such as pulse-width and pulse-density modulation have been used for many years in power electronics applications. Due to rapid scaling of semiconductor technology, similar approaches may be successfully applied to blocks in the radio architecture. This work outlines the implementation of a class-D power amplifier for RF applications
Jason T. Stauth, Seth R. Sanders
openaire +1 more source
Micromachines, 2023 This paper presents a 160 GHz, D-band, low-noise amplifier (LNA) and a D-band power amplifier (PA) implemented in the Global Foundries 22 nm CMOS FDSOI. The two designs are used for the contactless monitoring of vital signs in the D-band.
Ademola Akeem Mustapha, Mihai Sanduleanu
doaj +1 more source
A Fully-Integrated Quad-Band GSM/GPRS CMOS Power Amplifier [PDF]
, 2008 Concentric distributed active transformers (DAT) are used to implement a fully-integrated quad-band power amplifier (PA) in a standard 130 nm CMOS process.
Aoki, Ichiro +8 more
core +1 more source
A 2.7-kW, 29-MHz class-E/F/sub odd/ amplifier with a distributed active transformer [PDF]
, 2005 A Class-E/Fodd high power amplifier (PA) using the distributed active transformer (DAT) is demonstrated at 29MHz. The DAT combines the output power from four VDMOS push-pull pairs.
Jeon, Sanggeun, Rutledge, David B.
core +1 more source
Energies, 2017 The capacitive coupled wireless power transfer (CCWPT) operating at megahertz (MHz) frequency is broadly considered as the promising solution for low power biomedical implants.
Narayanamoorthi R. +4 more
doaj +1 more source
Increasing the talk-time of mobile radios with efficient linear transmitter architectures [PDF]
, 2000 In order to meet the linearity specification of standards such as GSM EDGE and TETRA the power amplifier (PA) linearisation methods in common usage today result in low DC to RF efficiency (e.g. Cartesian loop and adaptive predistortion).
Beach, MA +3 more
core +2 more sources
Design Equations for Class-E Power Amplifiers [PDF]
, 2006 In literature, it is widely accepted that the design of Class-E Power Amplifier (PA) with finite dc feed inductance requires a long iterative solution procedure. To avoid such iterative solution methods, analytical design equations should be known.
Acar, Mustafa +2 more
core +7 more sources
IEEE Access, 2022 This paper presents a wide-band multi-level switched mode class-E/F23 Power Amplifier (PA) with a reconfigurable power stage core transistor and a load with reconfigurable reactance compensation part.
Reza E. Rad +12 more
doaj +1 more source
A wideband 0.9–2.4 GHz 25 W high‐efficiency Gallium Nitride radio frequency power amplifier
Engineering Reports, 2021 In this work, a 0.9–2.4 GHz, 25 W output power, radio frequency (RF) power amplifier based on Class‐E switchmode topology has been analyzed. A load‐pull simulation method is used to optimize the power performance in the operating band.
Tanghid B. Rashid, Heather Song
doaj +1 more source