ABSTRACT

Digital signal processing (DSP) systems require interfaces to the analog world. The first amplification stage in a radio receiver is typically the tuned low-noise amplifier (LNA), which provides enough amplification to the input signal to make further signal processing insensitive to noise. Although the 330primary goal in LNA design is to minimize the system noise figure, the LNA must also meet other equally important specifications in gain, linearity, power consumption, input and output impedance matching, and bandwidth. This chapter provides a systematic method for achieving these design goals in V-band and W-band LNAs, based on an existing gigahertz-range simultaneous noise and impedance matching technique.