Design of a Button Sensor Antenna for Wireless Wearable Applications

Shahid M. Ali, Pavlos I. Lazaridis, Nigel Schofield, Fengshou Gu, Ioannis P. Chochliouros

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


A narrow-band wearable button sensor antenna (BSA) operating between 2.4 and 2.5 GHz has been designed and it is described in this paper. The top button shape is made of a Rogers substrate, that is properly arranged on a felt substrate and a conductive e-textile ground surface and is fed via a coaxial probe on the bottom side of the ground surface. The BSA is assessed in free space and on the body's chest location. The design is simulated in various configurations and the results are promising for a wireless body area network (WBAN). In free space, the simulated bandwidth, peak gain, and radiation efficiency are 59.3 MHz, 0.755 dBi, and 90%, respectively. While on certain on-body chest locations, these values reach up to 75.6 MHz, 2.69 dBi, and 75%. Furthermore, a wide omnidirectional radiation pattern is obtained in free space and on the body's chest location, which provides robustness across diverse environments. The specific absorption rate (SAR) is relatively low. Therefore, the design is the right solution for the WBAN system.

Original languageEnglish
Title of host publicationProceedings of the UNIfied Conference of DAMAS, IncoME and TEPEN Conferences (UNIfied 2023) - Volume 2
EditorsAndrew D. Ball, Huajiang Ouyang, Jyoti K. Sinha, Zuolu Wang
PublisherSpringer, Cham
Number of pages8
ISBN (Electronic)9783031494215
ISBN (Print)9783031494208, 9783031494239
Publication statusPublished - 29 May 2024
EventThe UNIfied Conference of DAMAS, InCoME and TEPEN Conferences - Huddersfield, United Kingdom, Huddersfield, United Kingdom
Duration: 29 Aug 20231 Sep 2023

Publication series

NameMechanisms and Machine Science
Volume152 MMS
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992


ConferenceThe UNIfied Conference of DAMAS, InCoME and TEPEN Conferences
Abbreviated titleUNIfied 2023
Country/TerritoryUnited Kingdom
Internet address

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