Design Of CMOS Radio-Frequency Receiver Circuit

With achievement of more mature CMOS processing technology under submicron and deep submicron level and the rapid advance of wireless communication technology over past decades, the RF CMOS circuits with low cost, low power dissipation and high integration have drawn much attention. Since the low noise amplifier (LNA) and the mixer are core building blocks of radio frequency front-end devices and employed in almost every standard wireless communication system, it is very meaningful and urgent that the low noise amplifier (LNA) and the mixer can be realized in deep submicron processing technology.In this thesis, an introduction to development of radio frequency communication is presented briefly at first. The second part gives the analysis of radio frequency characteristics of devices and basic physics of MOSEFT. Then the noise theory and nonlinear distortion is explained in details. In the fourth part, with the summery of LNA research in several basic structures, an amplifier based on cascode feedback topology is proposed. The analysis of different mixers is made in the following part and a novel Gilbert mixer is designed. At last, a brief conclusion is presented.The designed LNA and mixer are simulated by ADS software tool of Agilent Corp using TSMC 0.18 um CMOS process models. The results show that the proposed LNA and Mixer have quite good quality and all parameters falls in the reasonable good range.In conclusion, two goals have been achieved as following. First, a new type amplifier based on cascode feedback topology is proposed, and the simulated results show that it could meet the requirement of low noise and high performance . Second, the mixer could be cooperate with LNA well and meet requirement of front-end devices. Above work show that the designed LNA and Mixer are very fit to realizing monolithic RFIC system integration.