Hu Boxiong1, Dong Ge2, A.S. Ovsyannikova3, S.B. Makarov4, A.S. Korotkov5, S.V. Volvenko6, S.V. Zavjalov7, A.S. Gruzdev8

1,3−7 Peter The Great St. Petersburg Polytechnic University (Saint-Petersburg, Russia)

1,2 School of Aerospace Engineering, Tsinghua University (Beijing, China)

The work is divided into five sections. In the first section, the problem of high power consumption of wireless sensor networks used in aviation is highlighted and a way to solve this problem is proposed. This way assumes the transition to pulsed ultra-wideband wireless technology and the development of a low-power scheme for generating ultra-wideband narrow pulses. It is noted that the known schemes for generating narrow pulses operate only with excitation pulses close to ideal and provide insufficiently high efficiency. In the second section, it was established that a step recovery diode is the best option for transmitting data at medium and long distances using wireless sensor networks. A model of a step recovery diode is considered. A theoretical analysis of a typical scheme for generating narrow pulses based on a step recovery diode is performed. The influence of the parameters of the circuit on the characteristics of the generated pulse and the efficiency of the circuit is determined analytically. With the help of simulation, the optimal values of the parameters that provide the best characteristics of the generation circuit have been chosen. In the third section, a new topology of the amplitude-doubling pulse generation circuit is proposed, which makes it possible to achieve the required characteristics with a non-ideal excitation pulse. During the simulation, the values of the parameters of the new generation scheme have been optimized. In the fourth section, the results of an experiment on the formation of narrow pulses on the basis of the developed module for the transmitter of ultra-wideband pulses with the proposed scheme for generating narrow pulses are presented. It is shown that both modeling and experiment provide the same characteristics of the generated narrow pulse and the same efficiency of the circuit. In the fifth section, the main results of the study are briefly listed. The first result is a proposed method for generating nanosecond pulses based on a step recovery diode, which makes it possible to adapt to an arbitrary type of excitation pulses. The second result is an increase in the efficiency of the circuit by at least 1.5% and an increase in the amplitude of the generated pulse by at least 2.7 V in comparison with the known pulse generation schemes based on CMOS technology.

Hu Boxiong, Dong Ge, Ovsyannikova A.S., Makarov S.B., Korotkov A.S., Volvenko S.V., Zavjalov S.V., Gruzdev A.S. Energy efficient nanosecond pulse generator. Radiotekhnika. 2021. V. 85. № 11. P. 117−137. DOI: https://doi.org/10.18127/j00338486-202111-17 (In Russian)

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