Design of Ka-Band Low Noise Amplifier Using CMOS Technology

Abstract

In this paper, design of a Low Noise Amplifier is undertaken for higher frequency bands, particularly Ka-band. The designed LNA can be used in satellite transponders for the mentioned frequency band. Generally LNAs are the first block in a transponder and are very sophisticated in trems of noise performance. A common-source topology along with source degeneration is used to achieve low noise figure and linearity with high gain. The use of CMOS technology provides new applications in designing this amplifier. It offers designs at lower cost, reduced power consumption and higher levels of integration. Proposed circuit achieves a maximum gain of 23dB with a relatively low noise figure of 2.9dB. This system can work in Deep-Space region as part of a satellite transponder