Nearfield radio link of normal mode helical antenna for wireless capsule endoscopy

Zainudin, Norsiha and Latef, Tarik Abdul and Yamada, Yoshihide and Kamardin, Kamilia and Aridas, Narendra Kumar and Kamaruddin, Nur Amalina and Jizat, Noorlindawaty Md (2022) Nearfield radio link of normal mode helical antenna for wireless capsule endoscopy. Journal of Electromagnetic Waves and Applications, 36 (18). pp. 2672-2696. ISSN 0920-5071, DOI

Full text not available from this repository.


Wireless capsule endoscopy (WCE) is designed to monitor the physical data from inside human stomach and gastro intestine (GI) tract and transfer data to the receiver device. Normal mode helical antenna (NMHA) that has high efficiency at a small size is selected for WCE. To clarify the radio wave communication link budget in the dielectric environment is crucial. In this paper, NMHA for WCE system at 402 MHz along with a link budget analysis is presented. The transmitter uses NMHA embedded in a cylindrical phantom mimicking human stomach tissue, whereas the receiver uses another NMHA located outside the body. The NMHA dimension of height and diameter are 18 mm x 11 and 37 mm x 18 mm respectively. Through this study, a novel method of analytical equations for the radio wave communication link in human body are derived. From the good agreement between simulated and measured S21, the effectiveness of derived equations is ensured.

Item Type: Article
Funders: Universiti Malaya [GPF015A-2019], Ministry of Higher Education (MOHE) Malaysia through Fundamental Research Grant Scheme [FRGS/1/2018/TK04/UTM/02/16]
Uncontrolled Keywords: NMHA; Nearfield; Human body; WCE
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 25 Aug 2023 07:47
Last Modified: 25 Aug 2023 07:47

Actions (login required)

View Item View Item