An ultrawideband conformal loop antenna for ingestible capsule endoscope system

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


Research units

  • Japan National Institute of Information and Communications Technology


In this paper, an ultra wideband loop antenna is presented for capsule endoscope system operating around 433 MHz. The antenna occupies the outer-wall of the capsule and leaves the inner space for the other components of the capsule endoscope module. The proposed capsule antenna has a -10 dB impedance matching bandwidth of 744 MHz (from 336 to 1080 MHz). The ultra wideband characteristic enables the capsule antenna to compensate for detuning effects due to electronics components in the capsule endoscope module, different tissues in the gastrointestinal tract, and implant locations. The antenna has a nearly omnidirectional radiation pattern, which is usually required for such applications. The resonance performance of the fabricated antenna is validated by comparing the measured results with that of simulations when the antenna is placed in a human equivalent liquid phantom.


Original languageEnglish
Title of host publication2016 10th European Conference on Antennas and Propagation, EuCAP 2016
Publication statusPublished - 31 May 2016
MoE publication typeA4 Article in a conference publication
EventEuropean Conference on Antennas and Propagation - Davos, Switzerland
Duration: 10 Apr 201615 Apr 2016
Conference number: 10

Publication series

NameProceedings of the European Conference on Antennas and Propagation
ISSN (Electronic)2164-3342


ConferenceEuropean Conference on Antennas and Propagation
Abbreviated titleEuCAP

    Research areas

  • capsule antenna, Conformal antennas, loop antenna, ultra wideband, wireless capsule endoscope system

ID: 6762600