The 6.5GHz~10GHz Low Noise Amplifier

• Main Author: 馮志光
• Other Authors: 楊信佳
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/80706314040540327298

碩士 === 明新科技大學 === 電子工程研究所 === 97 === The receiver needs low noise amplifiers (LNA) to control the noise issues during amplifying the signals. One uses Advanced Noise System provided by Agilent to design LNA circuits. One also refers to the model of devices produced in TSMC through 0.18μm CMOS process to serve circuit designs. The center working frequencies 6.5 GHz ~ 12 GHz are taken into account. To enhance gains, a lot of work is to be done on impedance matching. In addition, good linearity and low self-interference shall be taken into account, too. Inductor-capacitor tank (LC tank) and inductor-capacitor in series are two main mechanisms for choosing the center working frequencies. Two amplifying units are responsible for the gains. S21’s are above 25 dB and noise figures (NF) are controlled under 2 dB.