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Implanted antenna applied to ISM frequency band

An antenna and frequency band technology, applied in the field of implanted antennas, can solve the problem of large differences in the parameters of muscle and fat media, and achieve the effect of good flexibility and easy processing

Pending Publication Date: 2022-03-04
QINGDAO UNIV
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  • Application Information

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Problems solved by technology

[0004] In view of this, this application provides an implanted antenna applied in the ISM frequency band, which can solve the problem that due to the large difference in the parameters of the muscle and fat media, it is difficult to achieve the implanted antenna by widening the bandwidth. The implanted antenna can cover ISM2 in both tissues .4GHz technical issues

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  • Implanted antenna applied to ISM frequency band
  • Implanted antenna applied to ISM frequency band
  • Implanted antenna applied to ISM frequency band

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Embodiment Construction

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0031] The embodiment of the present application is aimed at the ISM 2.4GHz (2.4-2.4835GHz) operating frequency band. The relative permittivity and conductivity differences of different human tissues and organs in this frequency band are reflected in the following: the relative permittivity of muscle is ε r =53.57, the conductivity is σ=1.81S / m; the relative permittivity o...

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Abstract

The invention provides an implanted antenna applied to an ISM frequency band, and relates to the technical field of medical equipment, and the implanted antenna comprises a dielectric substrate (100), and a first concentric-square-shaped metal strip (201) and a second concentric-square-shaped metal strip (202) which are connected are printed on the upper surface of the dielectric substrate (100); a rectangular metal sheet (300) is printed at the end part of the lower surface of the dielectric substrate (100); a feeder line is printed on the dielectric substrate (100) along a long edge, and power is supplied to the first clip-shaped metal strip (201) through the feeder line; a feed point is provided between the end of the feed line and the rectangular metal sheet (300). The antenna provided by the embodiment of the invention can cover an ISM 2.4 GHz frequency band in muscles, human tissues with parameters similar to those of a muscle medium and fat with parameters obviously different from those of the muscle medium.

Description

technical field [0001] The present application relates to the technical field of medical equipment, in particular to an implanted antenna applied in the ISM frequency band. Background technique [0002] Implantable medical devices using wireless communication have many applications in the medical field, such as capsule endoscopes and wirelessly charged pacemakers, among which implanted antennas play an important role in transmitting information inside and outside the human body. The implanted antenna works inside the human body. Different human tissues have different electromagnetic parameters, and the values ​​of electromagnetic parameters will also change with frequency. [0003] Most of the existing implantable antennas are designed for implantation in muscle or skin, and are suitable for working with materials with relatively close dielectric parameters. At present, most antennas can work in muscle, skin, and gastrointestinal tract. Since the medium parameters of fat ar...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q5/20H01Q5/307
CPCH01Q1/38H01Q1/50H01Q5/20H01Q5/307
Inventor 宗卫华隋耀宗李山东
Owner QINGDAO UNIV
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