Essays on Linearization

Chapter 1

Introduction

XX century was characterized with the significant technological progress, which has improved the life of people. Numerous products and services became available, labor and domestic life became easier and more comfortable. However, waste problem is the other side of the technological progress. The solid, liquid and gas waste are formed, and thus land, natural water and air quality degrade. Therefore, in XXI century the research efforts are dedicated to development of methods for sustainable use of water, gas, and solid resources. Wastewater polluted with dye residuals originate from textile, leather and food industry. These industries produce goods that ...

XX century was characterized with the significant technological progress, which has improved the life of people. Numerous products and services became available, labor and domestic life became easier and more comfortable. However, waste problem is the other side of the technological progress. The solid, liquid and gas waste are formed, and thus land, natural water and air quality degrade. Therefore, in XXI century the research efforts are dedicated to development of methods for sustainable use of water, gas, and solid resources. Wastewater polluted with dye residuals originate from textile, leather and food industry. These industries produce goods that are ...

Introduction

The Wide-Band Code Division Multiple Access (W-CDMA) is a third generation handset system that achieves high data transmission by utilizing a wider spectrum frequency. Issues that arise in handsets such as a low spectral growth and maintenance of modulation accuracy require a low adjacent channel leakage power ratio (ACLR) especially in the case of the W-CDMA handset systems. High linearization in the portable W-CDMA systems can be improved by increasing the gain compression point that creates the AM-AM distortion. As such this can be achieved by using an on-chip linearizer. A new on-chip active bias circuit can be used ...