Wideband dielectric resonator-based MIMO antenna for IoT-based health monitoring devices

Abstract

To provide a MIMO antenna capable of operating in a wide band and suitable for health monitoring devices. [Solution] A wideband dielectric resonator-based MIMO antenna (100) for an IoT-based health monitoring device is compact and operates in the 2.10 GHz to 9.90 GHz frequency band. The compact wideband dielectric resonator-based MIMO antenna (100) for an IoT-based health monitoring device comprises a dielectric resonator (102) mounted on a circuit board (104), microstrip feed lines (106 and 108), and a ground plane (110) with vertical slots (112) and horizontal slots (114) to extend bandwidth and improve isolation. The compact wideband dielectric resonator-based MIMO antenna (100) for an IoT-based health monitoring device provides unidirectional radiation and safe performance on human tissue.

Description

[Technical Field]

[0001] The present invention relates to the field of wireless communication antennas, in particular to compact, high-isolation, multi-input, multi-output (MIMO) antennas based on the operation of dielectric resonators for ultra-wideband (UWB), and particularly to antennas suitable for wearable IoT (Internet of Things)-based health monitoring devices. [Background technology]

[0002] The development of the Internet of Things (IoT) is accelerating the demand for efficient communication modules capable of handling massive connections, with high data rates and low power consumption. Traditional antenna structures often lack compactness, broadband capabilities, and insufficient isolation when implemented in IoT-based health monitoring systems, especially when operating in complex environments such as human tissue. Traditional approaches, such as stacked patches, EBG structures, and shorting pins, tend to be complex, bulky, and have limited bandwidth, making them unsuitable for scalable wearable health devices.

[0003] Therefore, there is a need for wideband dielectric resonator-based MIMO antennas for improved IoT-based health monitoring devices. Summary of the Invention

[0004] The present invention relates to a compact, wideband dielectric resonator-based MIMO antenna 100 for an IoT-based health monitoring device. The wideband dielectric resonator-based MIMO antenna 100 for an IoT-based health monitoring device operates at frequencies from 2.10 GHz to 9.90 GHz and includes a dielectric resonator 102 mounted on a circuit board 104 and excited by microstrip feedlines 106 and 108 located on either side of the dielectric resonator 102. A ground plane 110 is provided on the backside of the board and includes vertical and horizontal slots 112 and 114 to extend the impedance bandwidth and achieve high port isolation. A transformer feedline section 116 is configured for impedance matching. The wideband dielectric resonator-based MIMO antenna 100 for an IoT-based health monitoring device exhibits a high-gain, unidirectional radiation pattern 118 and a low specific absorption rate when placed on human tissue 120, thereby enabling effective integration into wearable health monitoring devices. [Effects of the Invention]

[0005] The wideband dielectric resonator-based MIMO antenna 100 for IoT-based health monitoring devices enables wideband operation with high gain and a unidirectional radiation pattern 118, making it suitable for wearable health monitoring devices.

[0006] The ground plane 110 ensures high port isolation for efficient MIMO performance. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 shows a block diagram of a wideband dielectric resonator-based MIMO antenna 100 for an IoT-based health monitoring device. DETAILED DESCRIPTION OF THE INVENTION

[0008] The wideband dielectric resonator-based MIMO antenna 100 for an IoT-based health monitoring device includes a dielectric resonator 102 mounted on a circuit board 104 and excited by microstrip feed lines 106 and 108 located on either side of the dielectric resonator 102 to form a MIMO configuration. A ground plane 110 is provided on the backside of the circuit board 104 and includes vertical and horizontal slots 112 and 114 that function as a defected ground structure to extend the impedance bandwidth and improve port isolation. A transformer feed line section is used to ensure impedance matching between the feed line and the resonator. The wideband dielectric resonator-based MIMO antenna 100 for an IoT-based health monitoring device operates over a wide frequency band from 2.10 GHz to 9.90 GHz and produces a unidirectional radiation pattern 118. Even when placed on human tissue, the wideband dielectric resonator-based MIMO antenna 100 for IoT-based health monitoring devices maintains stable performance with port isolation exceeding 17 dB and a specific absorption rate (SAR) within safety standards, making it highly suitable for integration into wearable IoT-based health monitoring systems. [Industrial Applicability]

[0009] This invention is beneficial for hospitals.

Claims

[Claim 1] a dielectric resonator 102 mounted on a circuit board 104; microstrip feed lines 106 and 108 disposed on either side of the dielectric resonator 102; a ground plane 110 disposed on the backside of the circuit board 104 and having vertical slots 112 and horizontal slots 114; 1. A wideband dielectric resonator-based MIMO antenna 100 for an IoT-based health monitoring device, comprising: A wideband dielectric resonator-based MIMO antenna 100 for IoT-based health monitoring devices, characterized by having a unidirectional radiation pattern and greater than 17 dB port isolation when placed on human tissue, and operating in the 2.10 GHz to 9.90 GHz frequency band.

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