Research progress of wearable fabric based radio frequency energy harvesting rectifiers
Existing printed circuit board rectifiers cannot meet the application requirements of flexible wearable radio frequency energy harvesting (RFEH) systems due to their rigid and thick drawbacks,and e-textiles provide a new approach.The design,preparation and performance evaluation methods of textile-based rectifiers were reviewed,focusing on their application in RFEH.The working principle,structure (including transmission lines,impedance matching networks,rectifier circuits) and fabric materials (dielectrics and conductors) of rectifiers were summarized.Preparation methods covered processes such as embroidery,screen printing,inkjet printing,and metallized fabrics.Performance evaluation focused on rectification efficiency,system integration and wear tests.Future research should focus on the development of flexible and efficient rectifiers based on fabrics,innovative material processes and structural designs to meet the needs of wearable application scenarios.It was necessary to explore the flexible connection and electronic component technology to improve the multi-band radio frequency circuit processing capability.
fabric based rectifierradio frequency energy harvestingwearableflexiblecomfortable
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