A millimeter wave system based on forward modulation and novel double sideband modulation

A millimetre wave (mm-wave) system based on forward modulation and novel double-sideband modulation (DSB) technique is proposed in radio over fibre. In this work, we describe and analyse a system capable of producing a high-quality 60-GHz mm-wave. In this system, the DSB consists of two Mach–Zehnder modulations, operates based on double-sideband modulation and achieves second-order suppression modulation. The principle of the photoelectric system is analysed and simulated. The mm-wave signal has low-phase noise and error rate, and the performance of the whole system has been improved.