电波科学学报2026，Vol.41Issue(4)：714-724,11.DOI:10.12265/j.cjors.2026011
南海北部湾E波段毫米波超视距传播损耗研究
Research on E-band millimeter-wave beyond-line-of-sight propagation loss in Beibu Gulf of South China Sea
摘要
Abstract
Evaporation duct is a crucial condition to realize beyond-line-of-sight(BLoS)radio propagation over the sea surface.Based on meteorological data and the Naval Postgraduate School(NPS)evaporation duct model,we find that the effect of evaporation duct is nearly permanent throughout the year in Beibu Gulf,South China Sea,where the evaporation duct heights(EDH)are 6-18 m.In this sea area,we conducted propagation experiments over 40 km long BLoS links,using the E-band millimeter-wave(mm-wave),i.e.,at 71-76 GHz and 81-86 GHz.We find that the E-band waves can be well trapped in evaporation ducts,and their propagation losses are far below the simulated diffraction loss in a non-ducting atmosphere.Comparing the measured propagation losses to those predicted by the parabolic equation(PE)model,it is showed that the PE model can to some extent predict the losses of vertically-polarized wave propagation but significantly underestimates those of horizontally-polarized,when the model of sea surface roughness is introduced into the PE.In addition,E-band ducting propagation loss is much more sensitive to the variation of EDH,as compared to lower frequency bands.The research demonstrates a great potential of using the E-band for high-speed BLoS communications over sea.E-band ducting propagation modeling and across-sea communication system design may refer to the research results.关键词
蒸发波导/超视距传播/毫米波/E波段/抛物方程(PE)/路径损耗Key words
evaporation duct/beyond-line-of-sight propagation/millimeter wave/E-band/parabolic equation(PE)/pathloss分类
信息技术与安全科学引用本文复制引用
张涵宇,郭振阳,高靖涵,梁喜庆,李靖洪,高翔..南海北部湾E波段毫米波超视距传播损耗研究[J].电波科学学报,2026,41(4):714-724,11.基金项目
国家自然科学基金重点项目"海面环境 E 波段毫米波 MIMO 信道特性与建模研究"(62031008)National Natural Science Foundation of China(NSFC)Key Project"Channel Characterization and Modeling of E-Band Millimeter-Wave MIMO in Over-Sea Environments"(62031008) （62031008）
