多种壁纸的电波穿透损耗测量

摘要

Currently, the extensive application of wall-coverings materials has become an important factor of impact of indoor distribution system. In view of the current lack of penetration loss test data, different types of wall-coverings material penetration loss are measured by using fenestration in a shielding room on the 0.831~2.661 GHz frequency band. Materials under measurement including gold foil wall-covering, silver foil wall-covering, PVC wall-covering and pure paper wall-covering. The penetration loss of silver foil wall-covering in a frequency point is over 40 dB. The test results show that material is the essential reason of the penetration loss; and metal containing in the material affects the penetration loss seriously.%目前，广泛应用的壁纸已成为影响室内分布式系统覆盖的重要因素。针对不同壁纸材料的穿透损耗测试数据匮乏的问题，采用屏蔽室开窗法对0.831~2.661 GHz频段上无线通信常用频点电磁波通过不同种类壁纸材料的穿透损耗进行测量。测量材料包括金箔壁纸、银箔壁纸、PVC壁纸和纯纸壁纸。其中银箔壁纸在某频点上有超过40 dB的穿透损耗。测试结果表明，对于不同壁纸的电波穿透损耗，材料是影响穿透损耗的本质原因，材料含有的金属物质对穿透损耗影响较大。