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Design of Diamond Textile Antenna based on Flexible Material

A kind of wearable flexible diamond antenna working in the 2.85GHz frequency band was designed, and mainly analyzed the performance of antenna micro deformation caused by human motion in this paper. The antenna medium is made of ordinary felt cloth, and the radiation patch and grounding plate are made of silver foil. The HFSS 18.0 simulation software is used to establish a model to simulate the angle of the diamond antenna at 85°, 90° and 95°, and the variation of the reflection coefficient and EH section parameters of the flexible antenna during micro-deformation is studied. The simulation data shows that when the antenna is slightly deformed in free space, the change of return loss, bandwidth and gain pattern are small, and the overall performance of the antenna is reduced, but still meet the requirements of the wireless communication system in the wearable system.