Wireless communication systems have undergone significant development in recent years,
particularly with the transition from fourth generation (4G) to fifth generation (5G). As the …

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 …

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 …

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 …

This paper presents a highly linear and power back-off efficiency-enhanced Doherty power
amplifier (PA) fully integrated into CMOS. The proposed Doherty PA employs a transformer …

This paper presents a dual-band high-power digital polar Doherty power amplifier (PA). A
current-mode parallel-combining transformer (PCT) power combiner is introduced for …

This work presents a wideband digital polar transmitter (DPTX) with an integrated capacitor-
digital-to-analog converter (C-DAC)-based digital-to-phase converter (DPC). A normalized …

We present a wideband, 12-bit four-way Doherty Cartesian digital transmitter (DTX) featuring
an innovative 50%-LO signed interleaved up-conversion technique that enables close to …

This paper presents an analysis of outphasing class-E power amplifiers (OEPAs), using load-
pull analyses of single class-E PAs. This analysis is subsequently used to rotate and shift …

A quadrature digital power amplifier (PA) with hybrid Doherty and impedance boosting
(HDIB) technique is presented for deep power back-off (PBO) efficiency enhancement in the …