Millimeter-wave power amplifier integrated circuits for high dynamic range signals

H Wang, PM Asbeck, C Fager - IEEE Journal of Microwaves, 2021 - ieeexplore.ieee.org
The next-generation 5G and beyond-5G wireless systems have stimulated a substantial
growth in research, development, and deployment of mm-Wave electronic systems and …

High efficiency power amplifiers for modern mobile communications: The load-modulation approach

C Ramella, A Piacibello, R Quaglia, V Camarchia… - Electronics, 2017 - mdpi.com
Modern mobile communication signals require power amplifiers able to maintain very high
efficiency in a wide range of output power levels, which is a major issue for classical power …

A Wideband 213-bit All-Digital I/Q RF-DAC

MS Alavi, RB Staszewski… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
This paper presents a wideband 2× 13-bit in-phase/quadrature-phase (I/Q) RF digital-to-
analog converter-based all-digital modulator realized in 65-nm CMOS. The isolation …

Amping up the PA for 5G: Efficient GaN power amplifiers with dynamic supplies

Z Popovic - IEEE Microwave Magazine, 2017 - ieeexplore.ieee.org
Signals designed for high-capacity communications result in high peak-to-average ratio
(PAR) waveforms that the transmitter power amplifier (PA) must amplify with low distortion …

A 1–3-GHz digitally controlled dual-RF input power-amplifier design based on a Doherty-outphasing continuum analysis

CM Andersson, D Gustafsson… - IEEE Transactions …, 2013 - ieeexplore.ieee.org
<? Pub Dtl=""?> This paper presents a linear multi-harmonic analysis method to evaluate the
performance of digitally controlled dual RF-input power amplifiers (PAs). The method …

Not just a phase: Outphasing power amplifiers

T Barton - IEEE Microwave Magazine, 2016 - ieeexplore.ieee.org
Performing RF amplification in a way that is simultaneously linear and efficient has long
been a challenge in power amplifier (PA) design. In short, single-transistor PAs can either be …

A wide-band 20W LMOS Doherty power amplifier

JH Qureshi, N Li, WCE Neo, F Van Rijs… - 2010 IEEE MTT-S …, 2010 - ieeexplore.ieee.org
This work discusses the efficiency bandwidth constrains in Doherty amplifiers. An analysis of
the bandwidth limitations imposed by the impedance inverter and output capacitance of the …

Confounding effect of biologic maturation on sex differences in physical activity and sedentary behavior in adolescents

AMM Rodrigues, MJC e Silva… - Pediatric …, 2010 - journals.humankinetics.com
Sex differences in physical activity (PA) through pubertal maturation and the growth spurt
are often attributed to changing interests. The contribution of sex differences in biological …

A 28-GHz flip-chip packaged Chireix transmitter with on-antenna outphasing active load modulation

S Li, T Chi, JS Park, HT Nguyen… - IEEE Journal of Solid …, 2019 - ieeexplore.ieee.org
This paper presents a packaged 28-GHz Chireix outphasing transmitter (TX) for power
amplifier (PA) efficiency enhancement at both peak and back-off output power (PBO). The …

A generalized combiner synthesis technique for class-E outphasing transmitters

M Özen, M Van Der Heijden, M Acar… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
In this paper, a generic combiner design technique is developed for class-E outphasing
transmitters. The design procedure starts with calculation of the combiner network …