The structure of the modern wireless network evolves rapidly and maturing 4G networks
pave the way to next generation 5G communication. A tendency of shifting from traditional …

Power amplifiers (PAs) are among the most crucial functional blocks in the radio frequency
(RF) frontend for reliable wireless communication. PAs amplify and boost the input signal to …

This article presents a mixed-signal Doherty power amplifier (MSDPA) architecture for
simultaneous linearity and efficiency enhancement. The MSDPA comprises one analog …

A time-division duplex (TDD) transmit/receive (T/R) millimeter-wave (mm-wave) front-end in
0.13-SiGe BiCMOS for fifth generation (5G) is presented. The front-end is composed of a …

This paper presents a new predistortion linearization technique for high linearity and high
modulation efficiency in millimeter-wave (mm-wave) CMOS power amplifiers (PA) for fifth …

The tunability in phase characteristics becomes more and more important in the modern
wireless communication system. However, the existing phase tunable coupler structures …

This article proposes a broadband high-efficiency parallel-circuit (PC) class-EF power
amplifier (PA) along with a quarter-wavelength stub for the first time. By adding a reactive …

This work presents a theoretical analysis of the frequency dependence of the load
impedance seen from the transistor's intrinsic current source and the package plane for …

A broadband and compact harmonic-tuned power amplifier (PA) is presented for 5G and
mobile satellite communication (SATCOM). A noninverting 1: 1 transformer is the core of the …

This paper presents a new continually-stepped variable gain low-noise-amplifier (CSVG-
LNA) for millimeter-wave (mm-wave) 5G communications. The proposed variable-gain …