Simulation of a Balanced Ku Band Low Noise Amplifier Based on ADS
Deng Zhi-hui · Experiment Science and Technology · 2012
Being possessed the advantages such as good voltage standing wave ratio(VSWR),high gain and easily to be cascaded,the balanced amplifying technique is applied in a Ku band low noise amplifier(LNA) simulation in this paper to improve VSWR and gain flatness of LNA while ensuring the low noise and power gain.The simulation results by using ADS show that the LNA is absolutely stable within the band range of 10～12GHz,and the noise figure≤0.7dB,and power gain reaches≤10dB.By utilizing balanced amplifying technique,the input and output VSWR≤1.12∶1,and in-band ripple≤0.5dB,the effective operation bandwidth of the LNA is improved.