This paper presents simulation and measurement results for two 2-stage E-band power amplifiers implemented in 0.18um SiGe technology with fT = 200 GHz. To increase the power gain by mitigating the effect of the base-collector capacitance, the first design uses a differential cascode topology with a 2.7 V supply voltage. The second design instead uses capacitive cross-coupling of a differential com

This paper presents measurement results for a low supply voltage 28 GHz beam steering PLL, designed in a SiGe bipolar process with fT = 200 GHz. The PLL, designed around a QVCO, is intended for a beam steering 81-86 GHz E-band transmitter. Linear phase control is implemented by variable current injection into a Gilbert type phase detector, with a measured nominal phase control sensitivity of 2.5˚/This letter presents measurement results for a low supply voltage 28 GHz beam steering PLL, designed in a SiGe bipolar process with fT=200 GHz. The PLL, designed around a QVCO, is intended for a beam steering 81-86 GHz E-band transmitter. Linear phase control is implemented by variable current injection into a Gilbert type phase detector, with a measured nominal phase control sensitivity of 2.5 °/

Harmonic task scheduling has many attractive properties, including a utilization bound of 100% under rate-monotonic scheduling and reduced jitter. At the same time, it places a severe constraint on the task period assignment for any application. In this paper, we explore the use of harmonic task scheduling for applications with multiple feedback control tasks. We investigate the properties of harm

Background: The time spent in nursing homes (NHs) by patients with Alzheimer’s disease (AD) might be influenced by many factors, e.g., sociodemographic and clinical characteristics, rate of disease progression, and concomitant disorders. Whether different aspects of cholinesterase inhibitor (ChEI) therapy (drug agent, dose, and duration) affect time spent in NHs has not been investigated. We studi

Continuous cardiac monitoring is usually not performed during hemodialysis treatment, although a majority of patients with kidney failure suffer from cardiovascular disease. In the present paper, a method is proposed for estimating a cardiac pressure signal by combining the arterial and the venous pressure sensor signals of the hemodialysis machine. The estimation is complicated by the periodic pr

The choice of channel propagation model used for the simulation-based study of Vehicular Ad hoc NETworks (VANETs) plays a key role in the accuracy of conclusions drawn about the performance of applications proposed for these networks. Relying on simplistic channel models, as frequently practised in previous works, leads either to pessimistic or optimistic conclusions. In the view of this, in this

In order to explore consumer culture’s potential to change social relations, this investigation immerses into the growing consumer culture of foodies occupying the historically feminine space of domestic cooking. It offers a tentative theory on the entering of subordinate consumption fields in contexts where the entering is sanctioned by cultural authorities.

Purpose – The purpose of this study is to discuss the theory of gender bias in innovation studies, to illustrate the gender bias of innovation studies by using empirical means and to suggest what is needed to reduce such bias. Previous studies on innovation have primarily focussed on male-dominated industries. These studies have been biased and hence unable to capture the range of innovations cove

Ethiopia is currently facing the worst drought in its modern history, resurrecting the world’s collective memory of the tragedy of the 1980s. But such severe meteorological conditions may not be so rare in the future: the observed and projected impacts of changing climatic conditions in Ethiopia point towards a considerable worsening of food security status for many smallholder households. In our

The paper analyses the complete methodology adopted in making the computer graphic movie presetning the House of Caecilius Iucundus, Pompeii. It starts with a discussion on the philological correctness of a reconstruction based on different kind of sources, such as paintings, drawings, technical and literary texts, comparisons etc., and proceeds to explore the use of integrated 3D models (both rel

The work presented in this thesis is based on time-resolved x-ray diffraction studies of InSb (111) samples. The experiments were carried out using a pump-probe configuration using short laser pulses as the pump and x-rays as the probe. Laser excitation leads to the formation of a strain pulse that propagates through the sample. The strain pulse gives rise to coherent longitudinal, acoustic phonon