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A 14.5 GHz Injection Locked Oscillator (ILO) with digital output phase control has been implemented in a 90 nm CMOS process. It is intended for LO signal generation in integrated phased array transceivers. The chip, measuring 360x530 μm2 including pads, was characterized using on-wafer probing. It consumes 9.4 mA from a 1.2 V supply and has a 1.4 GHz frequency range where full 3600 phase range is
The word queer landed in Sweden in a terminological and theoretical vacuum. It was not that nobody had studied issues and theories relating to sexualities and identities before queer theory were introduced, but the approach of the then new queer theory was slightly different. Above all, it concerned a term that had no history in the Swedish language. Queer is not a Swedish word, and therefore it c
Human tryptic C4d of the Chido and Rodgers variant was fragmented by cyanogen bromide and trypsin. The fragments were characterized by amino acid analysis and sequence determination. Polymorphism between the two genetic variants was detected in 5 positions. Four were closely located (residues 141, 142, 145, 146), where Leu, Ser, Ile, His occurred in the Chido variant and Pro, Cys, Leu, Asp in the
The V-BLAST system has been shown to be capable of exploiting the capacity advantage of multiple antenna systems. The square root algorithm for V-BLAST detection is attractive to hardware implementations due to low computational complexity and numerical stability. A low complexity VLSI architecture of the square root algorithm is presented in this paper. The proposed architecture is scalable for v
We address the antenna subset selection problem in spatially correlated MIMO channels. To reduce the severe performance degradation of the traditional antenna selection scheme in correlated channels, we propose to embed DFT operations in the RF chains. The resulting system shows a significant advantage both for diversity schemes and for the capacity of spatial multiplexing, while requiring only a
Fuel cells are promising due to advantages with higher energy conversion efficiency and lower emissions of SOX, NOX and CO2 than conventional power systems. Solid oxide fuel cell (SOFC) is a high temperature fuel cell, which operates at 600-1000 ºC. The high operating temperature and the anode material allow SOFCs to operate with different types of fuels from both fossil and renewable sources due
The purpose of this lecture is to shed light on a potential, and invite those who are interested to join in and make use of this potential. Here is the background: Starting with the Isaac Project in 1993, Certec has developed a technological/educational concept based on pictures as language for people with limited spoken language or none at all. There are a number of case studies (our own and ot
Today embedded system development is a complex task. To aid the engineers new methodologies and languages are emerging. During the development the system is modelled using different tools and languages. Transformations between the models are traditionally done manually. We investigate the automation of this process, specifically we are looking at automatic UML to SystemC transformation. In this pa
This paper focuses on the radio wave propagation through energy saving windows. These panes have a metallic shielding that keeps the heat inside the building during winter and outside during summer. Unfortunately, this covering also has an opaque behaviour at microwave frequencies. A design of energy saving window panes with high transmission at 900MHz and 1800MHz is presented. The high transmissi
