Research Article
Wearable Circularly Polarized MIMO Antenna: Design and Simulation for High-Data Biomedical Sensing Devices
@INPROCEEDINGS{10.1007/978-3-031-81168-5_3, author={Mallavarapu Sandhya and Lokam Anjaneyulu}, title={Wearable Circularly Polarized MIMO Antenna: Design and Simulation for High-Data Biomedical Sensing Devices}, proceedings={Broadband Communications, Networks, and Systems. 14th EAI International Conference, BROADNETS 2024, Hyderabad, India, February 16--17, 2024, Proceedings, Part I}, proceedings_a={BROADNETS}, year={2025}, month={2}, keywords={Multi input-Multi output (MIMO) Envelop Correlation Coefficient (ECC) Directive Gain (DG) Channel Capacity Loss (CCL) Multiplexing Efficiency (ME) Total Active Reflection Coefficient (TARC) Wearable antennas Defected ground structure Circular polarization}, doi={10.1007/978-3-031-81168-5_3} }- Mallavarapu Sandhya
Lokam Anjaneyulu
Year: 2025
Wearable Circularly Polarized MIMO Antenna: Design and Simulation for High-Data Biomedical Sensing Devices
BROADNETS
Springer
DOI: 10.1007/978-3-031-81168-5_3
Abstract
This paper introduces a novel Multi-Input Multi-Output (MIMO) antenna tailored for high-data wearable applications, emphasizing circular polarization. The antenna design is meticulously crafted with two C-shaped patch components, both featuring a specialized ground structure aimed at enhancing circular polarization efficiency. Each component is equipped with 50Ω SMA connectors and integrates L-shaped stubs within the ground plane. One notable feature of the antenna is its remarkable bandwidth, reaching a maximum of 440 MHz (2.32 GHz–2.76 GHz), which effectively covers unlicensed frequencies from 2.4 GHz to 2.48 GHz. Additionally, the antenna showcases outstanding performance metrics: an envelope correlation coefficient below 0.169 signifies minimal correlation between antenna elements, while a diversity gain exceeding 9.46 dB indicates robust diversity performance. Furthermore, the antenna boasts a multiplexing efficiency surpassing −0.85 dB, suggesting efficient data transmission within the MIMO system. Additionally, the channel capacity loss remains below 0.32 bits/s/Hz, indicating minimal loss in communication capacity. With its elevated gain and robust MIMO characteristics, the proposed antenna emerges as a highly promising solution for high-data wearable biomedical devices, particularly in ISM band applications. Its performance metrics position it favourably for reliable and high-speed wireless communication in challenging wearable environments.
