José Antonio Estrada, Eric Kwiatkowski, Ana López-Yela, Mónica Borgoñós-García, D. Segovia-Vargas, T. Barton, Z. Popovic
{"title":"An Octave Bandwidth RF Harvesting Tee-Shirt","authors":"José Antonio Estrada, Eric Kwiatkowski, Ana López-Yela, Mónica Borgoñós-García, D. Segovia-Vargas, T. Barton, Z. Popovic","doi":"10.1109/WPTC45513.2019.9055642","DOIUrl":null,"url":null,"abstract":"This paper presents 16 and 81-element broadband rectenna arrays screen printed on a cotton tee-shirt for harvesting $4-130 \\mu \\mathrm{W}/\\text{cm}^{2}$ power densities between 2–4 GHz. The antenna is a self-complementary tightly-coupled bow-tie array with a period of about $\\lambda_{\\mathrm{O}}/6$ at the highest frequency. Each array element feed is connected to a packaged Schottky diode using silver paint. Full-wave antenna simulations are performed with specific tissue electrical parameters for the torso, as well as for a body phantom. The diodes impedance as a function of dc load and input power density is analyzed using source-pull harmonic-balance simulations. Measurements using a water-filled phantom show up to $\\mathrm{P}_{\\text{DC}=}10 \\mu\\mathrm{W}$ for incident power densities of $4 \\mu\\mathrm{W}/\\text{cm}^{2}$ at the center of the band, with a DC load of $\\mathrm{R}_{\\text{DC}}=2\\mathrm{k}\\Omega$.","PeriodicalId":148719,"journal":{"name":"2019 IEEE Wireless Power Transfer Conference (WPTC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 IEEE Wireless Power Transfer Conference (WPTC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/WPTC45513.2019.9055642","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
This paper presents 16 and 81-element broadband rectenna arrays screen printed on a cotton tee-shirt for harvesting $4-130 \mu \mathrm{W}/\text{cm}^{2}$ power densities between 2–4 GHz. The antenna is a self-complementary tightly-coupled bow-tie array with a period of about $\lambda_{\mathrm{O}}/6$ at the highest frequency. Each array element feed is connected to a packaged Schottky diode using silver paint. Full-wave antenna simulations are performed with specific tissue electrical parameters for the torso, as well as for a body phantom. The diodes impedance as a function of dc load and input power density is analyzed using source-pull harmonic-balance simulations. Measurements using a water-filled phantom show up to $\mathrm{P}_{\text{DC}=}10 \mu\mathrm{W}$ for incident power densities of $4 \mu\mathrm{W}/\text{cm}^{2}$ at the center of the band, with a DC load of $\mathrm{R}_{\text{DC}}=2\mathrm{k}\Omega$.
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