Technical gazette, Vol. 33 No. 3, 2026.
Original scientific paper
https://doi.org/10.17559/TV-20250614002748
Design and Analysis of a Dual Radial MIMO Implantable Antenna for WMTS Applications
N. Srividhya
; Department of Electronics and Communication Engineering, K. Ramakrishnan College of Engineering, Trichy, Tamil Nadu, India
P. Maheswara Venkatesh
; Department of Electronics and Communication Engineering, University College of Engineering, BIT Campus, Anna University, Tiruchirappalli
*
* Corresponding author.
Abstract
This research presents a meticulously engineered dual-port, dual-radial implantable MIMO (Multiple Input Multiple Output) antenna specifically designed to operate within the 1.39-1.42 GHz frequency band of the Wireless Medical Telemetry System (WMTS). The proposed antenna, with compact dimensions of 19 × 19 × 1.27 mm³, utilizes Rogers RO6010 as both substrate and superstrate, featuring a dielectric constant (εr) of 10.2, a thickness of 0.635 mm, and a loss tangent of 0.0023. The design achieves high isolation (> 20 dB) between antenna elements, ensuring minimal mutual coupling, enhanced signal integrity, and reduced interference in implantable biomedical communication environments. The antenna demonstrates excellent performance metrics including a low Envelope Correlation Coefficient (ECC < 0.1), signifying robust signal decorrelation and high data reliability. Furthermore, the diversity gain (DG) approaches 10 dB, improving reception diversity and mitigating multipath and fading issues. Despite its compact and low-power design, the antenna achieves a peak gain of -28 dB and a measured channel capacity (CC) of 8 bps/Hz, indicating suitability for high-data-rate applications. Fabrication and measurement results exhibit strong agreement with simulated data, confirming the proposed antenna's practical feasibility for next-generation biomedical implant communication systems.
Keywords
biomedical telemetry; envelope correlation coefficient; implantable antenna; MIMO systems; wireless medical telemetry system (WMTS)
Hrčak ID:
346715
URI
Publication date:
30.4.2026.
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