采用双驱动马赫曾德调制技术生成24GHz波段的超宽带毫米波信号, 建立了基于双驱动马赫曾德调制器的超宽带毫米波信号理论模型, 并利用理论模型进行实际运算模拟产生了带宽达5.8 GHz的超宽带毫米波信号.研究了毫米波信号的信号质量和带宽.结果表明: 通过适当调节毫米波信号发生器的控制信号强度, 可以有效抑制产生的毫米波信号中残余振荡和低频成分；控制输入信号的脉冲宽度可实现对生成毫米波信号带宽的灵活调节.该超宽带毫米波信号发生器可用于汽车短程雷达、入侵检测传感器和移动无线电通信等领域.

A single-stage dual-drive Mach Zehnder modulator was employed for the generation of a 24-GHz-band ultra-wide-band signal. A theoretical model for signal generation was derived based on the modulation technique of a dual-drive Mach Zehnder modulator. By the numerical demonstration, an ultra-wideband signal of 5.8 GHz bandwidth was generated. The signal quality and the bandwidth were thoroughly investigated. The results show that residual local oscillation and low-frequency components can be efficiently suppressed if two modulating electrical signals with proper amplitudes are used. The bandwidth of the signal can be flexibly adjusted by simply controlling the pulse width of the input data signal. The millimeter ultra-wideband signal generator is a good candidate for the applications of automotive short-range radar, intrusion detection sensor and mobile radio services.