Title :
An active 38 GHz differential power divider for automotive radar systems in 65-nm CMOS
Author :
Duong, H.T. ; Le, Hung V. ; Huynh, A.T. ; Skafidas, E.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Melbourne, Melbourne, VIC, Australia
Abstract :
This paper presents an active 65-nm CMOS 38 GHz differential power divider which is used for power split and signal distribution from a PLL to sub-harmonic mixers of transmitter and receiver of a 77 GHz automotive radar system. The proposed divider consists of a differential passive transformer-based power splitter and three-stage common source power amplifiers. The measurement results show a 7 dB gain at 38 GHz, and a 3 dB bandwidth from 36 GHz to 46 GHz. The output compression point (OP1dB) and saturated output power are +5 dBm and +6 dBm, respectively. The isolation between input and output ports is better than 30 dB from 10 GHz to 80 GHz.
Keywords :
CMOS integrated circuits; MMIC mixers; automotive electronics; field effect MIMIC; field effect MMIC; millimetre wave radar; phase locked loops; power dividers; road vehicle radar; CMOS active differential power divider; PLL; automotive radar systems; bandwidth 38 GHz to 46 GHz; differential passive transformer-based power splitter; frequency 10 GHz to 80 GHz; gain 7 dB; output compression point; receiver; signal distribution; size 65 nm; sub-harmonic mixers; three-stage common source power amplifiers; transmitter; CMOS integrated circuits; Gain; Mixers; Ports (Computers); Power dividers; Power generation; Radar; Automotive radar; CMOS; millimeterwave; power divider; transformer;
Conference_Titel :
Microwave Symposium (AMS), 2014 1st Australian
Conference_Location :
Melbourne, VIC
DOI :
10.1109/AUSMS.2014.7017351
