We describe a new outphasing transmitter architecture in which the supply voltage for each
PA can switch among multiple levels. It is based on a new asymmetric multilevel outphasing …

This paper demonstrates a 240GHz wideband QPSK transmitter in 65nm bulk CMOS. The
proposed transmitter employs an 80GHz local oscillator, a quadrature differential hybrid, and …

A 1-bit RF modulator using phase-modulated-carrier-clocking envelope ΔΣ modulation for a
multi-mode/band transmitter is presented. The prototype IC designed in 90 nm CMOS …

With the advent of mobile communications, voice telecommunications became wireless.
Future applications, however, target multimedia, messaging, and high-speed Internet …

This article presents a millimeter-wave (mm-wave) transmitter (TX) front-end employing a
new inverse outphasing architecture with current-mode power amplifiers (PAs). This study …

A 65-nm digitally modulated polar TX for WLAN 802.11 g is fully integrated along with
baseband digital filtering. The TX employs dynamic impedance modulation to improve …

A transformer-combined fully integrated outphasing class-D PA in 45 nm LP CMOS achieves
31.5 dBm peak output power at 2.4 GHz with 27% peak PAE, and supports over 86 dB of …

In this paper, a fully integrated wideband 240-GHz transceiver front-end, supporting BPSK
modulation scheme, with on-chip antenna is demonstrated in SiGe: C BiCMOS technology …

Two circuit techniques adopted in the design of an embedded programmable-gain amplifier
(PGA) for very low-voltage (LV) wireless local-area network systems are presented. A …

Two versions of a baseband block composed by a 8-bit current-steering DAC and a fourth-
order low-pass reconstruction filter are realized in a 0.13-mum CMOS technology to be …