A High-Performance Distributed Amplifier Using Multiple Noise Suppression Techniques

作者：Chang Jin Fa^*; Lin Yo Sheng

来源：IEEE Microwave and Wireless Components Letters, 2011, 21(9): 495-497.

DOI：10.1109/LMWC.2011.2163059

• CMOS
• distributed amplifier (DA)
• high gain
• low noise
• low power
• noise suppression technique

We demonstrate a 1.2-8.6 GHz two-stage distributed amplifier (DA) with cascade gain cell, which constitutes two enhanced CMOS inverters, using standard 0.18 mu m CMOS technology. Multiple noise suppression techniques, including three noise-suppression/gain-peaking inductors and an RL terminal network, were used to achieve flat and low noise figure (NF) and flat and high power gain (vertical bar S-21 vertical bar) at the same time. At low-gain (LG) mode, the DA achieved (vertical bar S-21 vertical bar) of 11.41 +/- 1.39 dB and an average NF of 3.74 dB for frequencies 1.2 similar to 8.6 GHz with a power dissipation (P-DC) of 9.85 mW. At high-gain (HG) mode, the DA consumed 46.85 mW and achieved flat and high vertical bar S-21 vertical bar of 17.1 +/- 1.5 dB with an average NF of 3.52 dB for frequencies 1.5 similar to 8.2 GHz.

• 出版日期2011-9