论文信息 - Universal Generator of Ultra-Wideband Pulses

Universal Generator of Ultra-Wideband Pulses

An Ultra-Wideband (UWB) subnanosecond pulse generator is described in this paper. High amplitude Gaussian pulses are generated by a Step Recovery Diode (SRD) included in a novel pulse forming circuit. The proposed circuit solution utilizes the performance of the SRD effectively, without excessive requirements regarding the driver section of the generator. Monocycle pulses are then generated by an additional pulse forming network. A simple transistor driver is also described, which transforms a TTL trigger signal to a driving pulse with the timing and amplitude parameters required by the SRD. Measurement results are presented, which show the proposed generator operating with stable output pulse parameters at arbitrary pulse repetition frequency up to 20 MHz. The generated monocycle pulses are 25 V in amplitude and approximately 500 ps in width.

[1] A. Raisanen,et al. A new model of step recovery diode for CAD , 1995, Proceedings of 1995 IEEE MTT-S International Microwave Symposium.

[2] Thomas Musch,et al. Generation of short electrical pulses based on bipolar transistorsny , 2005 .

[3] Paul W. Smith,et al. Transient Electronics: Pulsed Circuit Technology , 2002 .

[4] E. Miller. Time-domain measurements in electromagnetics , 1986 .

[5] R. Tielert. Subnanosecond-pulse generator employing 2-stage pulse step sharpener , 1976 .

[6] H. Reader,et al. An impulse generator for antenna measurements in the time domain , 1988 .

[7] Jeongwoo Han,et al. A new ultra-wideband, ultra-short monocycle pulse generator with reduced ringing , 2002, IEEE Microwave and Wireless Components Letters.

[8] Jeffrey H. Reed,et al. Introduction to ultra wideband communication systems, an , 2005 .

[9] R. Adde,et al. Large amplitude picosecond step generation with FETs , 1990 .