A Scalable Multimode 24-GHz Radar Transceiver for Industrial and Consumer Applications in a 0.13µm SiGe BiCMOS Technology

Chakraborty, Abhiram; Hamouda, Mohamed; Chen, Yijue; Lautenschlager, Claus; Englisch, Daniel; Qureshi, M.S.; Huynh, Ngoc-Hoa; Hoenninger, Klaus; Forstner, Hans Peter

doi:10.1109/bcicts45179.2019.8972767

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…For example, an FMCW radar system being implemented by combining discrete radio frequency integrated chips (RFICs) on a printed circuit board (PCB) has large size, high cost, and high system complexity. In order to solve these problems, several works have been established to integrate discrete integrated chips (ICs), such as a transmitter (TX), a receiver (RX), and local oscillator (LO), into a single chip [ 5 , 6 , 7 , 8 , 9 ]. However, although the previous works have unique advantages in terms of the number of TX-RX channels and power consumption, there are still considerable shortcomings regarding the size and cost-effectiveness of FMCW radar applications.…”

Section: Introductionmentioning

confidence: 99%

“…However, although the previous works have unique advantages in terms of the number of TX-RX channels and power consumption, there are still considerable shortcomings regarding the size and cost-effectiveness of FMCW radar applications. In [ 5 , 6 ], multi-channel TX-RX radar transceivers were presented for the FMCW radar. In [ 7 , 8 ], 1-TX and 1-RX radar transceivers with TRX leakage cancellation and the TRX novel switching technique were presented for a single antenna operation.…”

Section: Introductionmentioning

confidence: 99%

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Fully Integrated 24-GHz 1TX-2RX Transceiver for Compact FMCW Radar Applications

Ko,

Moon,

Kim

et al. 2024

Sensors

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A fully integrated 24-GHz radar transceiver with one transmitter (TX) and two receivers (RXs) for compact frequency modulated continuous wave (FMCW) radar applications is here presented. The FMCW synthesizer was realized using a fractional-N phase-locked loop (PLL) and programmable chirp generator, which are completely integrated in the proposed transceiver. The measured output phase noise of the synthesizer is −80 dBc/Hz at 100 kHz offset. The TX consists of a three-bit bridged t-type attenuator for gain control, a two-stage drive amplifier (DA) and a one-stage power amplifier (PA). The TX chain provides an output power of 13 dBm while achieving <0.5 dB output power variation within the range of 24 to 24.25 GHz. The RX with a direct conversion I-Q structure is composed of a two-stage low noise amplifier (LNA), I-Q generator, mixer, transimpedance amplifier (TIA), a two-stage biquad band pass filter (BPF), and a differential-to-single (DTS) amplifier. The TIA and the BPF employ a DC offset cancellation (DCOC) circuit to suppress the strong reflection signal and TX-RX leakage. The RX chain exhibits an overall gain of 100 dB. The proposed radar transceiver is fabricated using a 65 nm CMOS technology. The transceiver consumes 220 mW from a 1 V supply voltage and has 4.84 mm2 die size including all pads. The prototype FMCW radar is realized with the proposed transceiver and Yagi antenna to verify the radar functionality, such as the distance and angle of targets.

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