TY - JOUR
T1 - A W-Band 4-GHz BW Multiuser Interference-Tolerant Radar with 28-nm CMOS Front Ends
AU - Huang, Rulin
AU - Chiang, Ching Wen
AU - Liang, Chia Jen
AU - Kim, Yanghyo
AU - Kuan, Yen Cheng
AU - Frank Chang, Mau Chung
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2020
Y1 - 2020
N2 - This letter presents a 89-93-GHz interference-tolerant radar supporting simultaneous operations of multiple users over a 4-GHz bandwidth. Radar interferences resulted from concurrent transmissions of multiple users can be effectively eliminated by employing frequency hopping (FH) on each radar with a corresponding one-coincidence code. The superheterodyne architecture is adopted for the radar front ends to ensure the image rejection and LO leakage levels required by the FH agility. Implemented in 28-nm CMOS technology, the transmitter (TX) provides an output power of 7.1 dBm, and the receiver (RX) achieves a noise figure of 10 dB and -12 dBm 1-dB compression point over the entire band of interest. In addition, a cost-effective TX (RX) module with the CMOS TX (RX) chip and a Rogers patch antenna is developed for over-the-air verifications. The measured range resolution is 3.75 cm. Under a 0.9-V supply, the CMOS front ends consume 273 mW and occupy 2.75 mm2.
AB - This letter presents a 89-93-GHz interference-tolerant radar supporting simultaneous operations of multiple users over a 4-GHz bandwidth. Radar interferences resulted from concurrent transmissions of multiple users can be effectively eliminated by employing frequency hopping (FH) on each radar with a corresponding one-coincidence code. The superheterodyne architecture is adopted for the radar front ends to ensure the image rejection and LO leakage levels required by the FH agility. Implemented in 28-nm CMOS technology, the transmitter (TX) provides an output power of 7.1 dBm, and the receiver (RX) achieves a noise figure of 10 dB and -12 dBm 1-dB compression point over the entire band of interest. In addition, a cost-effective TX (RX) module with the CMOS TX (RX) chip and a Rogers patch antenna is developed for over-the-air verifications. The measured range resolution is 3.75 cm. Under a 0.9-V supply, the CMOS front ends consume 273 mW and occupy 2.75 mm2.
KW - CMOS radar
KW - W-band
KW - code division
KW - interference tolerant
KW - multiuser radar
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U2 - 10.1109/LSSC.2020.3025789
DO - 10.1109/LSSC.2020.3025789
M3 - Article
AN - SCOPUS:85091682883
VL - 3
SP - 414
EP - 417
JO - IEEE Solid-State Circuits Letters
JF - IEEE Solid-State Circuits Letters
M1 - 9203840
ER -