In this paper,a broadband polarization isolation device suitable for the terahertz band is designed by combining optics and electromagnetics.The 3D simulation software Ansoft HFSS is used to simulate the parameters of the polarization isolators and polarization converters in the module,and the final result graph is given.Finally,the polarized isolators and polarization converters were processed by the soft material processing technology and terahertz absorbing materials at home and abroad,and the assembly test was carried out.The test results prove that the transceiver isolation combined device has the advantages of high isolation and small transmission loss in the 450 ± 15GHz frequency band,which meets the technical specifications and has broad application prospects.
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