A new microwave photonic signal processing structure that has the ability to realise frequency and phase shifting operation is presented. The proposed structure uses Serrodyne phase modulation in a dual-polarisation binary phase shift keying (DP-BPSK) dual-drive Mach Zehnder modulator to shift the frequency of an input microwave signal. This has the advantage over the conventional frequency mixers that the unwanted frequency components adjacent to the frequency translated microwave signal can be largely suppressed. It is suitable for use in deception jamming in electronic countermeasures systems. The phase shifting operation is realised by controlling the bias voltages of the DP-BPSK modulator. The dual-function microwave photonic signal processor has a simple structure and a wide bandwidth. The structure enables commercial modulator bias controllers to be used to provide long-term stable performance. Experimental results are presented that demonstrate a wide operating frequency range of 3 to 16 GHz, an over 35 dB suppression on the spurious signals and 0° to 360° phase shift on the frequency translated microwave signal. Using bias controllers to maintain a large spurious suppression ratio of around 35 dB is also demonstrated.

中文翻译：

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用于欺骗干扰的光子辅助微波频率和相移器

提出了一种新型的能够实现频率和相移操作的微波光子信号处理结构。所提出的结构在双极化二进制相移键控（DP-BPSK）双驱动Mach Zehnder调制器中使用Serrodyne相位调制来移动输入微波信号的频率。与常规混频器相比，这具有以下优点：可以大大抑制与频率转换的微波信号相邻的不想要的频率分量。它适用于电子对策系统中的欺骗性干扰。通过控制DP-BPSK调制器的偏置电压可实现移相操作。该双功能微波光子信号处理器结构简单，带宽大。该结构使商用调制器偏置控制器可用于提供长期稳定的性能。实验结果表明，工作频率范围为3至16 GHz，对杂散信号的抑制超过35 dB，对频率转换的微波信号的相移为0°至360°。还展示了使用偏置控制器来维持大约35 dB的大杂散抑制比。