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https://scidar.kg.ac.rs/handle/123456789/15883
Title: | A fully integrated 2TX–4RX 60-GHz FMCW radar transceiver for short-range applications |
Authors: | Krcum D. Glavonjic D. Mihajlović V. Saranovac, Lazar ![]() Milovanović, Vladimir ![]() ![]() Milosavljević, Ivan ![]() |
Issue Date: | 2022 |
Abstract: | A fully integrated 2-transmitter–4-receiver (2TX–4RX) multiple-input multiple-output (MIMO) radar front-end in the 57–64-GHz band for short-range applications is presented in this paper. The proposed architecture with 8 elements within a one-dimensional virtual array enables theoretical angular resolution down to (Formula presented.). The TX chains operate in time-division multiplexing (TDM) mode, and each delivers 12 dBm of saturated output power with output-referred 1-dB compression point (OP1dB) larger than 5 dBm over 7-GHz bandwidth. The millimeter-wave (mm-wave) part of the RX chains has a noise figure lower than 13 dB, and a conversion gain of 17 dB in the 60-GHz unlicensed band. The receiver chain shows a maximum conversion gain of 77 dB, while achieving an input-referred 1-dB compression point (IP1dB) greater than–12.5 dBm, including baseband circuitry. The programmable baseband processing chain with 60-dB gain allows beat frequency selection in the frequency range from 100 kHz up to 1.3 MHz. Linear chirps are synthesized using a fractional-N phase-locked loop (PLL) with a fundamental voltage-controlled oscillator (VCO). The integrated system includes a programmable multiplying delay-locked loop (MDLL) which scales-up external high purity 40-MHz frequency reference to a referent 240-MHz clock used in the frequency-modulated continuous-wave (FMCW) synthesizer. The front-end is implemented in a 130-nm SiGe:C BiCMOS process. The chip occupies an area of 12 mm2 including pads and consumes 930 mW, combined from 1.2-V and 3.3-V supplies. |
URI: | https://scidar.kg.ac.rs/handle/123456789/15883 |
Type: | article |
DOI: | 10.1080/00207217.2022.2062793 |
ISSN: | 0020-7217 |
SCOPUS: | 2-s2.0-85129816640 |
Appears in Collections: | Faculty of Engineering, Kragujevac |
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