300-GHz Integrated Heterodyne Receiver Chain for Phased-Array with Wide IF Bandwidth
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
This paper presents a fully integrated terahertz receiver chain for phased-array with a wide IF bandwidth designed using a 250-nm InP double heterojunction bipolar transistor (DHBT) technology. The phased-array receiver chain consists of a variable-gain low-noise amplifier (VG-LNA), phase shifter, down-conversion mixer, and injection locking local oscillator (ILO). Each circuit block is designed to be broadband to achieve a wide receiver chain bandwidth. The VG-LNA adopts cascaded amplifying stages with a current steering technique to control the gain. While the control voltage (Vcon) varies from 2 to 3.6 V, the gain varies from 15.6 to 0 dB at 300 GHz. The noise figure is no higher than 15 dB at all Vcon conditions. The phase shifter uses a current combining structure based on Gilbert cells. The peak conversion gain is -10 dB at 303 GHz and the 3 dB bandwidth is 52 GHz extending from 270 to 322 GHz. The LO employs an injection locking technique. The locking range is from 260 to 328 GHz (22.7%) when a 10-dBm signal is injected. The maximum output power is 0.5 dBm at 300 GHz. The Gilbert-cell-based down-conversion mixer shows a 72-GHz bandwidth extending from 252 GHz to 324 GHz. The proposed fully integrated phased-array receiver chain shows a wide bandwidth characteristic. When the control voltage is set to 2.0 V, the peak conversion gain is 12.3 dB and the 3-dB bandwidth reaches 45 GHz from 270 GHz to 315 GHz.
Abstract
This paper presents a fully integrated terahertz receiver chain for phased-array with a wide IF bandwidth designed using a 250-nm InP double heterojunction bipolar transistor (DHBT) technology. The phased-array receiver chain consists of a variable-gain low-noise amplifier (VG-LNA), phase shifter, down-conversion mixer, and injection locking local oscillator (ILO). Each circuit block is designed to be broadband to achieve a wide receiver chain bandwidth. The VG-LNA adopts cascaded amplifying stages with a current steering technique to control the gain. While the control voltage (Vcon) varies from 2 to 3.6 V, the gain varies from 15.6 to 0 dB at 300 GHz. The noise figure is no higher than 15 dB at all Vcon conditions. The phase shifter uses a current combining structure based on Gilbert cells. The peak conversion gain is -10 dB at 303 GHz and the 3 dB bandwidth is 52 GHz extending from 270 to 322 GHz. The LO employs an injection locking technique. The locking range is from 260 to 328 GHz (22.7%) when a 10-dBm signal is injected. The maximum output power is 0.5 dBm at 300 GHz. The Gilbert-cell-based down-conversion mixer shows a 72-GHz bandwidth extending from 252 GHz to 324 GHz. The proposed fully integrated phased-array receiver chain shows a wide bandwidth characteristic. When the control voltage is set to 2.0 V, the peak conversion gain is 12.3 dB and the 3-dB bandwidth reaches 45 GHz from 270 GHz to 315 GHz.
참고문헌 (4)
- C. Kulesa, "Terahertz spectroscopy for astronomy : From comets to cosmology", IEEE Trans. Terahertz Sci. Technol, 1(1), pp.232~240 (2011)
- S. Kim, "300 GHz integrated heterodyne receiver and transmitter with on-chip fundamental local oscillator and mixers", IEEE Trans. Terahertz Sci. Technol, 5(1), pp.92~101 (2015)
- M. H. Eissa, "Wideband 240-GHz transmitter and receiver in BiCMOS technology with 25-Gbit", s data rate, 2018, pp.53(9), 2532~2542
- H. Hamada, "300-GHz-band 120-Gb", s Wireless front-end based on InP-HEMT PAs and mixers, 2020, pp.55(9), 2316~2335