A ×3 Sub-Sampling Mixer for a 77 GHz Automotive Radar Receiver in 28 nm FD-SOI CMOS Technology

This paper presents an innovative x3 sub-sampling frequency downconverter for converting signals around 77 GHz from a 26 GHz LO signal. With a LO frequency divided by 3 this topology allows drastic simplifications on the receiver's LO distribution chain. The sub-sampling mixer operation princip...

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Bibliographic Details
Published in2022 IEEE 22nd Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems (SiRF) pp. 52 - 54
Main Authors Flete, Alexandre, Viallon, Christophe, Cathelin, Philippe, Parra, Thierry
Format Conference Proceeding
LanguageEnglish
Published IEEE 16.01.2022
Subjects
CMOS technology
Frequency down-conversion
Low duty cycle
Millimeter wave radar
Millimeter-wave
Passive mixer
Radio frequency
Receivers
Silicon
Simulation
Sub-harmonic
Topology
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Summary:This paper presents an innovative x3 sub-sampling frequency downconverter for converting signals around 77 GHz from a 26 GHz LO signal. With a LO frequency divided by 3 this topology allows drastic simplifications on the receiver's LO distribution chain. The sub-sampling mixer operation principle is described and implemented with 2S-nm FD-SOI CMOS technology. Simulation results show a 1dB input-referred compression power (ICPldB) of +3dBm and a 14.4 dB Noise Figure (NF) with a -2.5dB conversion gain. The mixer's LO signal shaper consumption is 36 mW on a 1. 2V supply while the passive mixer core doesn't require DC power.
ISSN:2474-9761
DOI:10.1109/SiRF53094.2022.9720061