A Differentially Fed Antenna with Complex Impedance for Ingestible Wireless Capsules

Han Wang; Yuan Feng; Yongxin Guo

doi:10.1109/LAWP.2021.3121424

Author(s)

Han Wang
Yuan Feng
Yongxin Guo

Detail(s)

Original language	English
Pages (from-to)	139-143
Journal / Publication	IEEE Antennas and Wireless Propagation Letters
Volume	21
Issue number	1
Online published	20 Oct 2021
Publication status	Published - Jan 2022
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1109/LAWP.2021.3121424 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85118258038&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(4d563357-710b-45db-9e53-16d5ed94ebe2).html

Abstract

A differentially fed capsule antenna with a complex input impedance is proposed in this letter. The antenna maintains a circular flat shape with a diameter of 10 mm and operates at the desired band of the RF chip (2.4-2.525 GHz). With the utilization of an inductively coupled fed structure and dual meandered radiators, a-10 dB impedance bandwidth of 10.2% is achieved. In the meantime, the high impedance tunability can be realized by adjusting corresponding structural parameters. The operating mechanisms and parametric studies are explored in detail to investigate the characteristic of the proposed structure. The capsule antenna prototype is fabricated, assembled, and measured according to the practical scenario. The measured results highly agree with the simulation ones, which indicate that the proposed antenna could be a good candidate for wireless capsule endoscopy applications. © 2021 IEEE.

Research Area(s)

Codesign, Differentially fed, Inductively coupled, Wireless capsule endoscopy

Citation Format(s)

[ RIS ] [ BibTeX ]

A Differentially Fed Antenna with Complex Impedance for Ingestible Wireless Capsules. / Wang, Han; Feng, Yuan; Guo, Yongxin.
In: IEEE Antennas and Wireless Propagation Letters, Vol. 21, No. 1, 01.2022, p. 139-143.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Wang, H, Feng, Y & Guo, Y 2022, 'A Differentially Fed Antenna with Complex Impedance for Ingestible Wireless Capsules', IEEE Antennas and Wireless Propagation Letters, vol. 21, no. 1, pp. 139-143. https://doi.org/10.1109/LAWP.2021.3121424

Wang, H., Feng, Y., & Guo, Y. (2022). A Differentially Fed Antenna with Complex Impedance for Ingestible Wireless Capsules. IEEE Antennas and Wireless Propagation Letters, 21(1), 139-143. https://doi.org/10.1109/LAWP.2021.3121424

Wang H, Feng Y, Guo Y. A Differentially Fed Antenna with Complex Impedance for Ingestible Wireless Capsules. IEEE Antennas and Wireless Propagation Letters. 2022 Jan;21(1):139-143. Epub 2021 Oct 20. doi: 10.1109/LAWP.2021.3121424

Wang, Han ; Feng, Yuan ; Guo, Yongxin. / A Differentially Fed Antenna with Complex Impedance for Ingestible Wireless Capsules. In: IEEE Antennas and Wireless Propagation Letters. 2022 ; Vol. 21, No. 1. pp. 139-143.