| Summary: | 碩士 === 國立臺北科技大學 === 電資碩士在職專班研究所 === 102 === This thesis focuses on the research and development of cascade low noise amplifier circuit that works with high dynamic input rang and suits for Digital Vedio Broadcasting-Terrestrial(DVB-T) frequency.
There are two interest topics in this thesis, one is the unstability that caused by high linear gain of cascade low noise amplifier. Two is the gain flatness degradation which occurs with cascade LNA, This thesis proposes a solution to slove with those two issues, that is a inter-stage circuit considered with passive inductor, capacitor and resistor components. The goal of the cascade LNA not only obtain an unconditional stability, but also has good gain flatness.
The measurements present that the proposed cascade LNA possesses low noise figure(NF<1), High gain(40±0.5), good flatness(±0.5dB), and unconditional stable (K>1) with respect to the frequency from 470 to 862MHz for DVB-T receiver system.
|
|---|
