24-GHz 4TX-4RX Phased Array Transceiver With Automatic Beam Steering Mode for FMCW Radar Applications
- Authors
- Ko, Goo-Han; Park, Jun Young; Oh, Kwang-Il; Kim, Gwang Sub; Hyun, Eugin; Yang, Jong-Ryul; Kim, Jeong-Geun; Baek, Donghyun
- Issue Date
- Oct-2023
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Analog beamforming; beam steering; digital beamforming; frequency-modulated continuous-wave (FMCW) radar; radar; sensor; transceiver
- Citation
- IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
- Journal Title
- IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/68676
- DOI
- 10.1109/TMTT.2023.3320741
- ISSN
- 0018-9480
1557-9670
- Abstract
- This article presents a 24-GHz highly integrated phased array radar transceiver with four transmitters (TXs) and four receivers (RXs). To realize a wide field of view (FoV) and more efficiently reject the clutters, an automatic beam steering mode is realized. A beam scanning generator (BSG) and a frequency sweep generator (FSG) are proposed to steer the beam for each frequency-modulated continuous wave (FMCW)waveform sequence. The shape of the FMCW waveform, the number of beams, and the steering angles of beams can bere c on figured by initially setting the FSG and BSG. The TXs achieve an output power of 10.6 dBm and beam steering covering angles up to +/- 50(degrees)through a three-stage power amplifier (PA),a 6-bit phase shifter, and a 4-bit attenuator. The RXs achieve a noise figure (NF) of 13.5 dB and an overall gain of 105 dB. In the RXs, a two-stage low-noise amplifier (LNA) employs a low-k transformer for flat band gain. A range-compensation filter with a total 40-dB slope is realized using a trans-impedance amplifier(TIA) with DC offset cancellation (DCOC) and first-stage biquad bandpass filter (BPF). The proposed transceiver was fabricated using 65-nm CMOS with an area of 3x2.8 mm2
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