This paper presents a 60 GHz, 16% tuning range VCO, and a 40 GHz, 18 bits, 14% tuning
range DCO incorporating variable inductor (VID) techniques. The variable inductor …

This article proposes a power-efficient highly linear capacitor-array-based digital-to-time
converter (DTC) using a charge redistribution constant-slope approach. A fringe-capacitor …

This paper presents a 65 nm CMOS digital polar transmitter with on-chip power amplifier
(PA) for WCDMA and WLAN application. The proposed architecture is composed of a digital …

A new architecture to mitigate the unwanted pulling effect of a transmitter VCO pulled by its
own transmitted signal or by other on-chip locked oscillators is presented. The proposed …

We propose a digitally controlled injection-locked RF oscillator with an auxiliary loop as an
alternative to the conventional capacitive fine-tuning of an LC-tank. The oscillator is injection …

This paper presents a power-efficient constant-slope digital-to-time converter (DTC) with
embedded nonlinearity cancellation. By utilizing the capacitor based digital-to-analog …

The injection pulling of oscillators in phase-locked loop (PLL) circuits is analyzed by the
linear approximation of nonlinear differential equations in terms of the oscillator phase …

In modern RF system on chips (SoCs), the digital content consumes up to 85% of the IC chip
area. The recent push to integrate multiple RF-SoC cores is met with heavy resistance by the …

In this paper, we propose a sub-gigahertz transmitter (TX) with a physically merged digitally
controlled oscillator (DCO) and digital power amplifier (DPA). The matching transformer of …

This work elucidates how the combined effects of power-amplifier distortion and local-
oscillator (LO) pulling adversely impact a wireless direct-conversion transmitter (DCT) that …