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dc.contributor.author유형석-
dc.date.accessioned2019-11-26T06:40:35Z-
dc.date.available2019-11-26T06:40:35Z-
dc.date.issued2017-06-
dc.identifier.citationIEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v. 65, no. 6, page. 2816-2826en_US
dc.identifier.issn0018-926X-
dc.identifier.issn1558-2221-
dc.identifier.urihttps://ieeexplore.ieee.org/document/7902165-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/114694-
dc.description.abstractIn this paper, a conformal wideband circularly polarized (CP) antenna is presented for endoscopic capsule application over the 915-MHz Industrial, Scientific, and Medical (902-928 MHz) band. The thickness of the antenna is only 0.2 mm, which can be wrapped inside a capsule's inner wall. By cutting meandered slots on the patch, using open-end slots on the ground, and utilizing two long arms, the proposed antenna obtains a significant size reduction. In the conformal form, the antenna volume measures only 66.7 mm(3). A single-layer homogeneous muscle phantom box is used for the initial design and optimization with parametric studies. The effect of the internal components inside a capsule is discussed in analyzing the antenna's performance and to realize a more practical scenario. In addition, a realistic human body model in a Remcom XFdtd simulation environment is considered to evaluate the antenna characteristics and CP purity, and to specify the specific absorption rate limit in different organs along the gastrointestinal tract. The performance of the proposed antenna is experimentally validated by using a minced pork muscle phantom and by using an American Society for Testing and Materials phantom immersed in a liquid solution. For measurements, a new technique applying a printed 3-D capsule is devised. From simulations and measurements, we found that the impedance bandwidth of the proposed antenna is more than 20% and with a maximum simulated axial ratio bandwidth of around 29.2% in homogeneous tissue. Finally, a wireless communication link at a data rate of 78 Mb/s is calculated by employing link-budget analysis.en_US
dc.description.sponsorshipThis work was supported by the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology under Grant 2016R1D1A1A09918140. (Corresponding author: Hyoungsuk Yoo.)en_US
dc.language.isoen_USen_US
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INCen_US
dc.subjectCapsule endoscope (CE)en_US
dc.subjectcircular polarizationen_US
dc.subjectIndustrialen_US
dc.subjectScientificen_US
dc.subjectand Medical (ISM) banden_US
dc.subjectingestible devicesen_US
dc.subjectlink budgeten_US
dc.titleA Wideband Circularly Polarized Conformal Endoscopic Antenna System for High-Speed Data Transferen_US
dc.typeArticleen_US
dc.relation.no6-
dc.relation.volume65-
dc.identifier.doi10.1109/TAP.2017.2694700-
dc.relation.page2816-2826-
dc.relation.journalIEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION-
dc.contributor.googleauthorDas, Rupam-
dc.contributor.googleauthorYoo, Hyoungsuk-
dc.relation.code2017001738-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDIVISION OF ELECTRICAL AND BIOMEDICAL ENGINEERING-
dc.identifier.pidhsyoo-
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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