Power amplifiers and transmitters for RF and microwave
The generation of RF/microwave power is required not only in wireless communications, but
also in applications such as jamming, imaging, RF heating, and miniature dc/dc converters …
also in applications such as jamming, imaging, RF heating, and miniature dc/dc converters …
Digital predistortion using a vector-switched model
S Afsardoost, T Eriksson, C Fager - IEEE Transactions on …, 2012 - ieeexplore.ieee.org
A switched behavioral model considering memory effects with a special focus on “difficult”
amplifier architectures is proposed in this paper. The proposed model is shown to be very …
amplifier architectures is proposed in this paper. The proposed model is shown to be very …
An All-Digital RF Signal Generator Using High-Speed Modulators
A Frappé, A Flament, B Stefanelli… - IEEE Journal of Solid …, 2009 - ieeexplore.ieee.org
An all-digital RF signal generator using DeltaSigma modulation and targeted at transmitters
for mobile communication terminals has been implemented in 90 nm CMOS. Techniques …
for mobile communication terminals has been implemented in 90 nm CMOS. Techniques …
A novel architecture of delta-sigma modulator enabling all-digital multiband multistandard RF transmitters design
This paper proposes a new architecture of delta-sigma (DS) modulator suitable for RF digital
transmitter design. This novel architecture considerably reduces the speed requirements of …
transmitter design. This novel architecture considerably reduces the speed requirements of …
A -Digitized Polar RF Transmitter
J Choi, J Yim, J Yang, J Kim, J Cha… - IEEE Transactions …, 2007 - ieeexplore.ieee.org
This paper demonstrates a new polar transmitter architecture, which uses the digitized
envelope signal to control the drain voltage of a switching mode power amplifier (PA). It is …
envelope signal to control the drain voltage of a switching mode power amplifier (PA). It is …
Radio transmission frequency digital signal generation
The invention is directed to digital generation of RF signals. In the digital domain, digital RF
signals are converted to the digital signals clocked at a high speed clock that is phase …
signals are converted to the digital signals clocked at a high speed clock that is phase …
A fully digital delay line based GHz range multimode transmitter front-end in 65-nm CMOS
PAJ Nuyts, P Singerl, F Dielacher… - IEEE Journal of Solid …, 2012 - ieeexplore.ieee.org
This paper presents a fully digital polar up-converter for wireless transmission in the GHz
range. The system is designed to drive two class-E power amplifiers (PAs) with a power …
range. The system is designed to drive two class-E power amplifiers (PAs) with a power …
Accurate power efficiency estimation of GHz wireless delta-sigma transmitters for different classes of switching mode power amplifiers
FM Ghannouchi, S Hatami, P Aflaki… - … on Microwave theory …, 2010 - ieeexplore.ieee.org
This paper proposes a new closed-form expression for computing the power efficiency of
delta-sigma (DS) radio frequency (RF) transmitters. Due to the large bandwidth of the …
delta-sigma (DS) radio frequency (RF) transmitters. Due to the large bandwidth of the …
A 20–32-GHz quadrature digital transmitter using synthesized impedance variation compensation
This article presents a broadband quadrature digital transmitter (TX) architecture for part of
the fifth-generation new radio (5GNR) frequency range 2 (FR2) and backhaul …
the fifth-generation new radio (5GNR) frequency range 2 (FR2) and backhaul …
An FPGA based all-digital transmitter with radio frequency output for software defined radio
Z Ye, J Grosspietsch, G Memik - … & Test in Europe Conference & …, 2007 - ieeexplore.ieee.org
This paper presents the architecture and implementation of an all-digital transmitter with
radio frequency output targeting an FPGA device. FPGA devices have been widely adopted …
radio frequency output targeting an FPGA device. FPGA devices have been widely adopted …