Graphene-based double-frequency implanted antenna applied to rehabilitation nursing device

A nursing device and graphene technology, which is applied to antennas, antennas, antenna grounding devices, etc. suitable for movable objects, can solve the problems of less research on graphene, achieve excellent electrical conductivity, improve transmission efficiency, and reduce losses Effect

Pending Publication Date: 2019-05-17
JINLIN MEDICAL COLLEGE
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Domestic and foreign scholars' research on graphene materials in the field of antennas mainly focuses on terahertz antennas, pattern reconfigurable antennas, filter antennas, flexible antennas, and wearable antennas. There are relatively few studies on graphene materials in implantable antennas.

Method used

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  • Graphene-based double-frequency implanted antenna applied to rehabilitation nursing device
  • Graphene-based double-frequency implanted antenna applied to rehabilitation nursing device
  • Graphene-based double-frequency implanted antenna applied to rehabilitation nursing device

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Embodiment

[0040] Embodiment: The specific manufacturing process is as described in the embodiment. Select Rogers RO3210 dielectric substrate, dielectric constant ε r = 10.2, loss tangent tanδ = 0.003, thickness H = 0.635mm, coaxial connectors adopt standard SMA connectors. The dielectric substrate has a length L=9 mm and a width W=9 mm. Graphene bending branch-shaped radiation patch and graphene H-shaped gap grounding plate are made of graphene. Graphene material has a high carrier density, which makes it excellent in electrical conductivity and can increase the work of implanted antennas. Bandwidth and gain, improving transmission efficiency and reducing loss. The thickness of the graphene material is 0.03mm, and the four corners of the dielectric substrate (1) are transitioned by a quarter of the arc radius R 1 is 0.6mm. The four corners of the dual-frequency implantable antenna are connected by a quarter-arc transition to reduce the discomfort after the antenna is implanted. The...

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Abstract

The invention discloses a graphene-based double-frequency implanted antenna applied to a rehabilitation nursing device. The antenna is composed of a dielectric substrate, graphene bending-branch-shaped radiating patches printed on the front of the dielectric substrate, a graphene H-shaped gap grounding plate printed on the back of the dielectric substrate, an external coaxial contact and a short-circuit probe inside the dielectric substrate. The graphene bending-branch-shaped radiating patches form bending paths through inner and outer branches, the number of effective current paths on the surface of the implanted antenna is increased on a finite area, and therefore the resonant frequency of the implanted antenna is lowered. An H-shaped gap is formed in the middle of the graphene H-shapedgap grounding plate, the size of the H-shaped gap is reasonably adjusted, the number of resonant points of the antenna can be increased, and impedance bandwidth of the antenna can be expanded. The size of the antenna is only 9x9mm, and the antenna has the advantages of double frequency, broadband, miniaturization, etc. and is suitable for an ISM 918MHz wireless energy transmission band and a WMTS1.43GHz remote control and remote sensing band of the rehabilitation nursing device.

Description

technical field [0001] The invention relates to the technical field of implantable antennas for rehabilitation nursing devices, in particular to a graphene-based dual-frequency implantable antenna for rehabilitation nursing devices, which is suitable for dual-frequency ISM 918MHz wireless energy transmission frequency band and WMTS 1.43GHz remote control telemetry frequency band Implantable Wireless Rehabilitation Nursing Device. Background technique [0002] With the rapid development of the electronic industry and wireless biomedical technology, implantable rehabilitation nursing devices are widely used in physiological parameter monitoring and disease treatment, providing many conveniences for patients' rehabilitation process, which requires implantable antennas to have multi-frequency characteristics. It can also have the functions of parameter monitoring, remote control telemetry and wireless energy transmission. The smaller antenna size can increase the comfort after ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/27H01Q1/36H01Q1/38H01Q1/40H01Q1/48H01Q1/50H01Q5/10H01Q5/20H01Q5/307H01Q5/314H01Q5/328
Inventor 欧仁侠鲍捷郗艳丽张光雷张华磊王利群
Owner JINLIN MEDICAL COLLEGE
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