Extremely low-profile antenna for attachable bio-sensors

Tae Wan Koo, Young Jun Hong, Gun Kuk Park, Kunsoo Shin, Jong Gwan Yook

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


In this paper, an extremely low-profile patch-type slot antenna for on-body wireless bio-sensor is presented in the medical body area network (MBAN) band. By locating the proposed antenna at the top of the sensor as a sensor cover layer, it is able to maintain compact and flexible sensor structure as well as to enhance its radiation efficiency. The proposed antenna consists of a rectangular loop for balanced feeding and patch with slots for radiating element, and it is designed on flexible printed circuit board (FPCB). To further improve the performance of the antenna with extremely low-profile sensor, air substrate is employed to satisfy the bandwidth, gain, and efficiency requirements. The proposed antenna is measured on a human phantom model with permittivity and conductivity close to those of a human body. From the measured results, it is found that the 3-dB bandwidth of the antenna is sufficient to cover the entire MBAN band (2.36-2.39 GHz) and has a relatively reasonable peak gain of -04 dBi on the human body model.

Original languageEnglish
Article number7017525
Pages (from-to)1537-1545
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Issue number4
Publication statusPublished - 2015 Apr 1

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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