KHANH Nguyen, Masahiro SASAKI, Kunihiro ASADA, Taihei MONMA
The University of Tokyo, Japan
A 9 – 11GHz fully integrated shock wave generator using 0.18μm CMOS process for in-door active imaging applications is presented. This chip includes an on-chip wideband meandering dipole antenna, a shock wave generator and a 5-bit digitally programmable time delay circuit. The pulse generator simulation produces 0.4Vp-p (peak – peak) pulse amplitude with 45.86ps monopulse cycle in simulation. The integrated dipole antenna’s bandwidth -10dB is 25.3GHz in EMDS, ADS 2008 simulation. A 20dB standard horn antenna with distance of 38mm to this chip is used for the measurement. Measurement results show that 9 – 11GHz pulse frequency response with 1.1mVp-p pulse output voltage received from the horn antenna and 3ps delay control resolution are suitable for fully on-chip pulse beam forming purpose with integrated antenna array.