# 超宽带窄脉冲产生方法比较Comparison of UWB Narrow Pulse Generation Methods

DOI: 10.12677/HJWC.2019.93012, PDF, HTML, XML, 下载: 542  浏览: 1,136

Abstract: Ultra-wideband (UWB) technology is the most advanced and accurate short-range wireless com-munication technology at present. UWB communication based on narrow pulse is the most classical way to realize it. In this paper, by analyzing several typical UWB narrow pulse generation methods, four UWB narrow pulse generation circuits are introduced from the angle of analog circuit and digital circuit respectively. The simulation results of four pulse generators are given, and the circuit structure and performance are discussed and compared.

1. 引言

2. 雪崩三极管脉冲发生器

Figure 1. Avalanche pulse generation circuit

$i={i}_{R}+{i}_{A}$ (1)

${U}_{CE}={V}_{CC}-{i}_{R}{R}_{C}$ (2)

 (3)

${U}_{CE}={u}_{c}\left(0\right)-1/C{\int }_{0}^{t}\left(\left[i+\left({U}_{CE}-{V}_{CC}\right)/{R}_{L}\right]\text{d}t-\left[i+\left({U}_{CE}-{V}_{CC}\right)/{R}_{L}\right]{R}_{L}\right)$ (4)

${U}_{CE}={E}_{CC}-i{R}_{L}$ (5)

${E}_{C}={u}_{c}\left(0\right)-{\int }_{0}^{t}i\text{d}t$ (6)

Figure 2. Cascaded UWB pulse generation circuit

Figure 3. Simulation results of narrow pulse generation by cascade method

3. 微波三极管脉冲发生器

Figure 4. Microwave triode generating narrow pulse circuit diagram

$U\left(\propto \right)=0V,U\left(0\right)=5V,V\left(t\right)=0.5U\left(0\right)=2.5V$

(7)

Figure 5. Simulation results of narrow pulse generation by microwave triode

4. 数字逻辑器件脉冲发生器

Figure 6. Narrow pulse generation circuit diagram of digital logic device

Figure 7. Simulation of narrow pulse generation by digital logic device

5. 基于DCM的数字电路脉冲发生器

Figure 8. Block diagram of DCM functional modules

Figure 9. Principle diagram of digital circuit pulse generator based on DCM

Figure 10. Simulation results of narrow pulse generation in digital circuits based on DCM

Figure 11. Output pulse power spectrum density diagram

6. 分析与比较

7. 总结

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