Implanted type circularly polarized antenna applied to wireless medical telemetering

A circularly polarized antenna and implantable technology, applied in the field of biomedical telemetry, can solve the problems of impracticality and relatively large antenna influence.

Pending Publication Date: 2018-02-23
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the antenna needs to be implanted into the human body, the human body is composed of multiple layers of lossy tissue media (skin, fat, muscle) with different characteristics (different shapes, different electromagnetic properties), and the dielectric constant and conductivity of these tissues vary with each other. As the frequency changes, these constitute a complex and special working environment for implanted antennas. The performance of the an...

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  • Implanted type circularly polarized antenna applied to wireless medical telemetering
  • Implanted type circularly polarized antenna applied to wireless medical telemetering
  • Implanted type circularly polarized antenna applied to wireless medical telemetering

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Embodiment

[0023] Such as figure 1 with figure 2 As shown, an implantable circularly polarized antenna applied to wireless medical telemetry includes an antenna radiation unit 2, a metal floor 3, a dielectric substrate 1, and a feed unit 4. The dielectric substrate is composed of upper and lower dielectric substrates. The antenna radiation unit 2 is printed between the upper and lower dielectric substrates, the metal floor is located on the lower surface of the lower dielectric substrate, the feeding unit is composed of a 50Ω coaxial cable, and the inner core radius of the coaxial cable is 0.3mm.

[0024] The antenna radiating unit includes two triangular structures and two arrow structures. The triangular structures 7A and 7B are printed on both sides of the longitudinal midline of the lower dielectric substrate. The two triangular structures are identical and symmetrical about the longitudinal midline. The high-impedance lines are superimposed, and the apex of the triangular structu...

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Abstract

The invention discloses an implanted type circularly polarized antenna applied to wireless medical telemetering. The implanted type circularly polarized antenna comprises an antenna radiating unit, ametal floor, upper and lower layer dielectric substrates and a feeding unit, wherein the antenna radiating unit is printed between the upper and lower layer dielectric substrates, the metal floor is arranged on the lower surface of the lower layer dielectric substrate, and the antenna radiating unit comprises a triangular structure, an arrow structure and a slit structure. The implanted type circularly polarized antenna disclosed by the invention has the advantages of small size, high gain, interference resistance, biocompatibility and the like.

Description

technical field [0001] The invention relates to the field of biomedical telemetry, in particular to an implantable circularly polarized antenna applied to wireless medical telemetry. Background technique [0002] With the aging population and increasing work pressure, people pay more and more attention to health and medical care, and the unique convenience has led to extensive research on medical devices implanted in the human body. As a key device for wireless communication between implantable biomedical sensors and in vitro equipment, implantable antennas' performance will affect the information transmission capabilities of the entire system. Implantable antennas are different from ordinary communication antennas. Since the antenna needs to be implanted into the human body, the human body is composed of multiple layers of lossy tissue media (skin, fat, muscle) with different characteristics (different shapes, different electromagnetic properties), and the dielectric const...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/48H01Q9/04
CPCH01Q1/38H01Q1/48H01Q9/0428
Inventor 常天海黎济铭韦岗刘雄英
Owner SOUTH CHINA UNIV OF TECH
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