Title :
A CMOS Ultra-wideband radar transmitter with pulsed oscillator
Author :
Lee, Sungeun ; Sim, Sanghoon ; Hong, Songcheol
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., KAIST, Daejeon, South Korea
Abstract :
A design of Ultra-wideband (UWB) radar transmitter is presented. The transmitter which uses a pulsed oscillator consists of pulse generator, switching buffers and control signal generator. The control signal generator includes modulators of binary-phase shift keying (BPSK) and pulse position modulation (PPM) for spreading the spectral lines. It is fabricated using 0.13 μm CMOS technology and the chip size is 910 × 485 μm2. The output spectrum is centered at the 22.0 GHz with the 10-dB bandwidth of 2.48 GHz and the pulse width of output pulse is tunable from 630ps to 830ps. Also, the BPSK and PPM modulations are confirmed. In conclusion, the generated pulse complies with FCC´s spectral mask.
Keywords :
CMOS integrated circuits; phase shift keying; pulse position modulation; radar transmitters; ultra wideband radar; CMOS technology; CMOS ultra-wideband radar transmitter; UWB radar transmitter; bandwidth 2.48 GHz; binary-phase shift keying; control signal generator; frequency 22 GHz; modulators; pulse generator; pulse position modulation; pulsed oscillator; size 0.13 mum; switching buffers; Binary phase shift keying; CMOS technology; Oscillators; Pulse generation; Pulse modulation; Radar; Signal generators; Space vector pulse width modulation; Transmitters; Ultra wideband technology; CMOS RFIC; UWB radar transmitter; Ultra-wideband (UWB); automotive radar; binary-phase shift keying (BPSK); pulse generator; pulse position modulation (PPM); short range radar (SRR);
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2010 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4244-6240-7
DOI :
10.1109/RFIC.2010.5477389
