{"title":"An Ultrawideband Implantable Antenna With Hybrid Polarization for Human Health Monitoring","authors":"Jiajie Chu;Shuhui Yang;Yinchao Chen;Fanglu Tong;Changyin Liu;Zihao Fu;Jingjing Liang;Li Zhang;Bin Li;Yahui Hou","doi":"10.1109/LAWP.2025.3575448","DOIUrl":null,"url":null,"abstract":"A miniaturized ultrawideband implantable antenna with hybrid polarization is proposed in this letter. The antenna has a surface size of 10 mm × 9.8 mm, which consists of a tree-shaped radiation patch and a horseshoe-shaped defected ground structure. Because of the specially designed radiation patch and defective ground plane, the implantable antenna has realized ultrawideband characteristics. By adding a superstrate to the antenna system, the circular polarization has been introduced to the antenna. A prototype of the antenna was fabricated and measured when it was buried inside a ground pork environment. The simulated and measured results show a fairly good agreement. A measured impedance bandwidth from 2.33 GHz to 11.36 GHz (131%), and three wide axial ratio (AR) bandwidths of 4.4 GHz to 5.2 GHz (16.67%), 6.6 GHz to 8 GHz (19.18%), and 10.4 GHz to 10.8 GHz (3.77%) were obtained. Furthermore, the link budget analysis and specific absorption rate were further analyzed. It seems that the proposed antenna has a wide bandwidth, which covers the bands of the ISM, 5G, WiMAX, Wi-Fi, and satellite communication.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"24 9","pages":"2859-2863"},"PeriodicalIF":4.8000,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Antennas and Wireless Propagation Letters","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/11018824/","RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
A miniaturized ultrawideband implantable antenna with hybrid polarization is proposed in this letter. The antenna has a surface size of 10 mm × 9.8 mm, which consists of a tree-shaped radiation patch and a horseshoe-shaped defected ground structure. Because of the specially designed radiation patch and defective ground plane, the implantable antenna has realized ultrawideband characteristics. By adding a superstrate to the antenna system, the circular polarization has been introduced to the antenna. A prototype of the antenna was fabricated and measured when it was buried inside a ground pork environment. The simulated and measured results show a fairly good agreement. A measured impedance bandwidth from 2.33 GHz to 11.36 GHz (131%), and three wide axial ratio (AR) bandwidths of 4.4 GHz to 5.2 GHz (16.67%), 6.6 GHz to 8 GHz (19.18%), and 10.4 GHz to 10.8 GHz (3.77%) were obtained. Furthermore, the link budget analysis and specific absorption rate were further analyzed. It seems that the proposed antenna has a wide bandwidth, which covers the bands of the ISM, 5G, WiMAX, Wi-Fi, and satellite communication.
期刊介绍:
IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.