A 75-90GHz Driver Amplifier with high out-band suppression for Automotive radar in 65nm CMOS

Yan Wang,Bowen Wu,Shiwei Wu,Dongwei Pang

2023 International Conference on Microwave and Millimeter Wave Technology (ICMMT)（2023）

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Abstract

This paper presents a 75-90GHz driver amplifier for automotive radar application. The driver amplifier is implemented in 65nm CMOS technology. The circuit achieves gain of 7.1-10.1dB over 75-90GHz. A three order high pass filter is integrated for low frequency out-band signal suppression from frequency synthesizer. The simulation results shows that the insertion loss is less than 3dB. With the HPF, additional out -of band typical rejection in is better than 25dB. The chip area is only 174*400um, and the total DC power consumption is 41.8mw.

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Key words

automotive radar application,CMOS technology,driver amplifier,frequency 75.0 GHz to 90.0 GHz,frequency synthesizer,gain 7.1 dB to 10.1 dB,HPF,low frequency out-band signal suppression,out-of-band typical rejection,power 41.8 MW,size 65.0 nm,three order high pass filter

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