| 摘要 |
subsurface aseismic transceiver antenna systems operating in lower section of very-high- frequency band. SUBSTANCE: antenna insulating insert whose parameters are close to those of air that fills up resonator space and has open inner porosity is replaced by insert made of laminated insulating material of red clay brick placed horizontally in layer-by- layer manner and dried out to water absorption coefficient equal to 0.01% which is free from inner and outer blackness, primed and coated through one third of brick depth and also covered with bituminous roofing mastic in layer-by-layer manner without voids and cracks. EFFECT: enhanced aseismic properties of antenna used for subsurface radio links in earthquake-prone locations. 3 dwg |
