A high‐performance low‐noise amplifier for 71–76, 76–77, and 77–81 GHz communication systems in 90‐NM CMOS

Abstract

A low power and wideband three‐stage millimeter‐wave low‐noise amplifier (LNA) for 71–76 GHz high‐speed point‐to‐point wireless link, and 76–77 GHz long‐range and 77–81 GHz short‐range automotive radars using standard 90‐nm CMOS technology is reported. T‐match technique is utilized to achieve simultaneously wideband input and output impedance matching, wideband power gain (S21) and wideband noise figure (NF) at W‐band. The LNA consumes 21.1 mW, achieving S11 better than −10 dB for frequencies 62.3–82.4 GHz, S22 better than −10 dB for frequencies 62.8–84.6 GHz, S12 better than −29 dB for frequencies 72–84 GHz, and group delay variation smaller than ±6.5 ps for frequencies 70–90 GHz. Additionally, high and flat S21 of 13.1 ± 1.5 dB is achieved for frequencies 72–84 GHz, which means the corresponding 3‐dB bandwidth is 12 GHz. Furthermore, the LNA achieves minimum NF of 6.2 dB at 78 GHz and NF of 6.8 ± 0.6 dB for frequencies 75–82 GHz, one of the best NF results ever reported for a W‐band CMOS LNA. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1673–1680, 2014

A A 57-64 GHz High-gain Amplifier using Ultra-wideband Inductors in the IMNs and Optimization by PCA and SDSM

“…In the design of these amplifiers, by the appropriate input/output and inter-stage impedance matchings, the returned power decreases, and the transmitted power increases, which in turn increases the gain. The transmission line impedance matching networks for millimeter-wave amplifiers have been implemented in low noise amplifier [1][2][3][4][5][6][7], high-gain low noise amplifier [8], wideband low noise amplifier [9], distributed amplifier for ultra-wideband application [10], ultra-low power low noise amplifier [11], low-power high-gain amplifier [12], low power amplifier [13], power amplifier [14][15][16][17][18], wideband power amplifier [19][20][21], and millimeter-wave amplifiers [22][23][24][25]. However, only the simulated results have been provided in these references, and no solutions were proposed analytically to optimize the networks.…”