(not more than 200 words) This report describes the 94 GHz imaging radar system that has been developed and used within the IR/mm project during the years 2001-2003. The new system, which is based on active gate mixers (GaAs MMIC), shows higher performance than an earlier used system, which was based on resistive mixers (InP HEMT). The conversion loss and pumping power requirement have both bee...

In the modern high-performance transceivers, mixers (both upand down-converters) are required to have large dynamic range in order to meet the system specifications. The lower end of the dynamic range is indicated by the noise floor which tells how small a signal may be processed while the high end is determined by the non-linearity which causes distortion, compression and saturation of the sig...

A new concept, the Bit-Mixer is introduced. It is a function of fixed, possibly different size of input and output, which computes statistically uncorrelated output from correlated input values, and its behavior is altered by parameters, called keys. Several constructions are presented, with very fast, power efficient implementations in electronic hardware, having very little side channel leaka...

"Orientation," we said last year, "Traces its sluggish path each year no better and no worse than before . . Although this is probably still t rue to a degree, there is an illusion shared by many advisors that this year's Freshman Week went better than those in years past. This may be because the men's colleges continue to judge their success by the female reactions to their mixers. The girls p...

Processing feed onfarm using a portable grinder-mixer provides an affordable and flexible manufacturing system for producers with small to intermediate size operations (50 to 400 farrow to finish sows). The portable grinder-mixer differs from a stationary mill in several important areas during feed processing. These differences will be considered by examining five functions or cost centers in a...

Revision History: 1998-09-21: Added chapter number to section numbers. Placed specifications in table format. Added milestone summary. 1999-04-09: Revised date format to conform to MMA standard. Updated milestone table. Added description of new SIS junction fabricator. 1999-04-15: Updated milestone table. Added Figs. 5.3.4(c) and 5.3.4(d). Added subsections 5.3.2.3.1 and 5.3.2.3.2. Revised sect...

In this thesis, three broadband low-noise mixing circuits which use CMOS 130 nm technology are presented. As one of the first few stages in a receiving front-end, stringent requirements are posted on mixer performance. The Gilbert cell mixers have presented excellent properties and achieved wide applications. However, the noise of a conventional active Gilbert cell mixer is high. This thesis de...

Abstract High mass transfer rate is a key advantage of microreactors however, under their characteristic laminar flow, it dominated by slow diffusion rather than fast convection. In this paper, we demonstrate how the configuration inlet, i.e. mixers, can promote different flow patterns to greatly enhance mixing efficiency downstream. A systematic evaluation and comparison widely adopted mixers ...

The control of blend morphologies during process is of prime importance in order to predict the final properties of polymer blends. A coextrusion technique combined with static mixers was developed in order to smartly blend polymeric melts and to optimize the blend morphologies during the flow in static mixers [1]. The aim of this paper is to study the evolution of those blend morphologies duri...