0.12THz谐波混频器的设计与研究

Design and Research of 0.12THz Harmonic Mixer

在太赫兹通信、雷达、电子对抗、测量等系统中,所遇到的首要问题便是太赫兹波信号的频率变换,谐波混频器是太赫兹通信系统中最为核心的器件,其性能的好坏将直接决定接收系统和发射系统的性能,本文对0.12THz的二次谐波混频器进行理论分析,在理论分析的基础上对该混频器进行设计仿真,理论仿真结果表明0.12THz的二次谐波混频器的损耗小于8dB,并对于优化后的模型在RT/duroid 5880为电路基片上进行加工测试,测试结果表明本文设计的0.12THz二次谐波混频器衰减为7dB,已经达到了国际先进水平。

In terahertz communication, radar, electronic countermeasures and measurement system, the most important issue is how to transform the RF signal to terahertz wave signal. The harmonic mixer is a core device in the terahertz communication systems. Its performance will directly determine the per- formance of the receiving system and the transmitting system. In this paper, the 0.12 THz harmonic mixer is analyzed by theory and software simulation. The simulation results show that the loss of 0. 12 THz har- monic mixer is less than 8 dB. The optimized model is processed with the RT / duroid 5880 circuit sub- strate. The test results show that the attenuation of 0. 12 THz harmonic mixer is 7 dB which has already reached the international advanced level.