A complete behavioral model of radiation-pattern characteristics of phased array using a novel digital phase shifter
A complete and behavioral model for radiation-pattern characteristic of phased array has been presented. The model has many input parameters and it has a lot of features, such as parameter simulations with results analysis, unconventional two-dimensional color graph representation capability in order to show more clearly the results. It is an optimum instrument to investigate the performance of a beam-former in relation with an analogue phase shifter, ideal digital phase shifter, simulated real phase shifter and measured real phase shifter. Measured values of three different prototype of the proposed phase shifter architecture have been used in order to study the performances of the same architecture.
A novel 2.4GHz high-resolution and low-power phased array transmitter
A new approach to design a low-power high phase resolution phased array transmitter is presented. The proposed approach uses a PLL configuration that is able to perform simultaneously the LO-path phase shifting and the up conversion. A 2.4GHz 7-bit phased array transmitter is reported, with a 0.5° measured worst-case RMS phase error in the band of synthesis. The reported experimental results perfectly match the theoretical ones validating the architecture potentialities.
AN INTRODUCTION T O THE SOILS OF THE SOUTH-EASTERN PORTION OF THE AUSTRALIAN ARID ZONE
Summary 
 
Seven soil regions, each of which is dominated by soils belonging to one or two great soil groups, are defined and mapped. The outstanding feature is the presence of a variety of soils with widely differing characteristics. The soils are deeper, have more profile differentiation and are finer-extured than those in most-arid regions and are frequently overlain by currently-forming deposits of wind-transported materials. Because the vegetative cover is better developed and there are only small areas of rocky hills and bare rock pediments, water erosion and deposition are not as prominent as in other arid areas.