期刊
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
卷 69, 期 3, 页码 1654-1660出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMTT.2020.3048934
关键词
Electromagnetic (EM) simulations; inductors; mm-wave circuits; power amplifier (PA); transformers; 28-nm fully depleted (FD) silicon-on-insulator (SOI) CMOS; W-band radar sensor
This article presents a W-band power amplifier (PA) designed for automotive radar applications, utilizing a 28-nm CMOS technology. The PA features high power gain, efficiency, and is suitable for low-voltage mm-wave power applications.
This article presents a W-band power amplifier (PA) for automotive radar applications. It was designed in a 28-nm fully depleted silicon-on-insulator CMOS technology with a transition frequency of around 270 GHz and a standard back-end-of-line. The circuit adopts a pseudo-differential topology with coupling transformers, which allow both compact matching networks and layout-optimized interstage interconnections. The power stage exploits a transformer-based folded-cascode structure that is very suitable for low-voltage mm-wave power applications. The PA is able to deliver a saturated output power as high as 13.5 dBm at 77 GHz with a power-added efficiency of 14.5%, while using a power supply as low as 1 V. The linear power gain is 26.5 dB and the current consumption is 150 mA. The PA occupies a core die size of 700 mu m x 200 mu m.
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