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Transistor sizing for a 4-state current mode analog channel decoder in 65-nm CMOS

Analog decoders are constructed based on interconnecting CMOS Gilbert vector multipliers using transistors operating in the sub-VT region. They are seen as an interesting alternative to digital implementations with a low transistor count and a potential for a very low power consumption. Analog implementation makes the circuit sensitive to mismatch, requiring careful transistor sizing. A simulation

New Approaches to Large-Scale Electronic Structure Calculations

Popular Abstract in Swedish Även om vi befinner oss i en tidsepok av informationsteknologi och superdatorer så utförs dagens forskning baserat på Galileos vetenskapliga principer. Trots det så finns det idag inget behov av att klättra upp i det lutande tornet i Pisa för att observera hur ekvationerna för rörelse, enligt den klassiska mekaniken, tar sig uttryck för fallande kroppar. Samma experimenRecent years have witnessed a growing interest of the scientific community for the use of ab initio and density functional theory methods in theoretical studies of molecules containing many atoms. However, the `scaling wall' of some of the most accurate of such methods is often an obstacle for their applicability to systems of real-life interest, e.g. in biochemistry and nanotechnologies, one bott

Evacuation models of the future: Insights from an online survey on user’s experiences and needs

This paper presents a summary analysis of data regarding evacuation model users experiences and needs obtained via an online survey. The survey was available in 6 languages: English, German, Chinese, Spanish, Italian and Russian. The different versions allowed the survey to be accessible to an international participant base. The survey was developed by the team at www.Evacmod.net ; an evacuation m

Parametric analysis of Sierpinski-like fractal patch antenna for compact and dual band WLAN applications

A Sierpinski-like fractal patch antenna with a slant strip in the first iteration is proposed in this article. The parameters of this kind of antenna are analyzed and optimized for dual WLAN application. The added slant strip provides simple probe feeding for compactness and also helps bandwidth enhancement due to multiple modes, which can be evident from current distribution. Measured return loss