In this paper, a compact size (16 × 16 mm) of the monocycle pulse generator is proposed for Ultrawide‐band (UWB) impulse radar applications. The proposed circuit is based on the step recovery diodes (SRDs) and has a very simple structure. It consists of a coupling part, short pulse generating part, and monocycle forming part. The performance of the pulse generator is compared against simulation results which are performed by advanced design system (ADS). The measured monocycle waveform has a pulse width of 150 ps with the tail ringing level of −11 dB and symmetry of 87%. The corresponding spectrum has a center frequency of around 2.6 GHz with −10 dB bandwidth of 4 GHz. The performance of the pulse generator is validated by analyzing the receiving waveform. The pulse width and the ringing level of the received waveform are observed to be 250 ps and −11 dB, respectively. The developed compact monocycle pulse generator is very attractive because of the ease of integration into the limited physical space inside the UWB system.

中文翻译：

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开发用于UWB脉冲雷达应用的紧凑型单周期脉冲发生器

本文针对超宽带（UWB）脉冲雷达应用提出了紧凑型（16×16 mm）单周期脉冲发生器。所提出的电路基于分步恢复二极管（SRD），并具有非常简单的结构。它由耦合部分，短脉冲发生部分和单周期形成部分组成。将脉冲发生器的性能与高级设计系统（ADS）执行的仿真结果进行比较。测得的单周期波形的脉冲宽度为150 ps，尾振铃电平为-11 dB，对称度为87％。对应频谱的中心频率约为2.6 GHz，-10 dB带宽为4 GHz。通过分析接收波形可以验证脉冲发生器的性能。接收到的波形的脉冲宽度和振铃电平分别为250 ps和-11 dB。由于易于集成到UWB系统内部有限的物理空间中，因此开发的紧凑型单周期脉冲发生器非常具有吸引力。