DESIGN OF A LOW NOISE AMPLIFIER AND A SIGNAL MIXER FOR RADIOFREQUENCY, INTEGRATED IN TECHNOLOGY CMOS.

Motivation

This work will contribute to the development of a project that has been proposed by group CEMOS of the Universidad Industrial de Santander, which consists of the design and implementation of a Transceiver integrated in CMOS technology of very under power consumption, to be used in applications of short reach fulfilling the minimum specifications of the Bluetooth standard. Additionally, it is tried to show the posibility of design integrated circuits in Colombia, that fulfill the requirements of a system at the present time. On the other hand, to fulfill the exigencies of system communication, it is necessary to characterize and to optimize the performance of each one of the blocks that conform it. Two fundamental blocks that affect the performance of a receiver are the LNA and the Mixer, since these determine the sensitivity of the receiver and the quality of the signals (measured in distortion terms) given to the following blocks to be processed. Therefore, the study and design of a LNA and a Mixer are critical in any system of wireless communication.

Objectives

To design a LNA and a Mixer, integrated within a same chip in CMOS technology, for its later application in a system of reception of radiofrequency. To design a LNA and a Mixer in CMOS technology, that fulfill the noise requirements, linearity, matching of impedances, isolation of ports and consumption of power, for a Bluetooth application at 2,45GHz. To design the layout of the LNA and the Mixer, fulfilling the effective rules of a manufacture process of integrated circuits in CMOS technology 0.35µm, to facilitate its later implementation and test in others projects. To verify by simulation, the operation and performance of the system, under the given specifications.