Antenna sensor based on EBG structure and silicon dioxide film and application thereof

The invention belongs to the field of wireless communication, and relates to an antenna sensor based on an EBG structure and a silicon dioxide film and application of the antenna sensor. The antenna sensor comprises an antenna, an EBG structure, a radiation resonance unit, a grounding patch, a radio frequency connector and a silicon dioxide film, and the radiation resonance unit comprises double rings of the antenna, a rectangular radiation line and a radiation concentric-square-shaped ring of the EBG. The device can measure and output soil water content change in real time, and is suitable for agricultural soil water content monitoring and the like. The antenna sensor with signal detection and transmission functions is developed, the linear change of the resonant frequency to the dielectric property of the surrounding environment is realized, the sensitivity of the antenna is enhanced by using the EBG structure and the silicon dioxide film, and the change of the dielectric property of the soil environment is