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Multi-polarization conformal antenna used for capsule endoscope

A capsule endoscope and conformal antenna technology, applied in the field of communication, can solve the problems of easy polarization mismatch, large volume, and difficulty in adapting to the internal application environment requirements of human capsules, and achieve the solution of polarization mismatch and small volume Effect

Pending Publication Date: 2018-08-24
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the antenna technologies currently used in capsule endoscopes are designed as built-in helical antennas or planar antennas, which have the disadvantages of large size and easy polarization mismatch. Many shortcomings make it difficult for current capsule endoscope antennas to adapt to the human body. And the complex and changeable application environment requirements inside the capsule

Method used

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  • Multi-polarization conformal antenna used for capsule endoscope
  • Multi-polarization conformal antenna used for capsule endoscope
  • Multi-polarization conformal antenna used for capsule endoscope

Examples

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Embodiment

[0030] Such as figure 1 As shown, a multi-polarization conformal antenna used in a capsule endoscope, the antenna 2 is conformally nested inside the capsule shell 1 by bending to form an internal hollow structure. The shell of the capsule has a thickness of 0.1 mm, a height of 26 mm, and a diameter of 11 mm, so that the antenna is compatible with human body radiation, biocompatible, has the effect of isolating and insulating human tissue, and serves as a protective layer for the antenna.

[0031] As shown in Figure 2(a) and Figure 2(b), a multi-polarization conformal antenna for capsule endoscopes includes a dielectric substrate 3, an antenna radiation unit 4, a metal floor 9 and a coaxial feed 6 . The dielectric substrate is a single-layer structure, the antenna radiation unit 4 is printed on the upper surface, and the metal floor 9 is printed on the lower surface of the dielectric substrate. The antenna radiating unit is bent conformally to form a cylindrical surface struc...

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PUM

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Abstract

The invention discloses a multi-polarization conformal antenna used for a capsule endoscope. The multi-polarization conformal antenna comprises an antenna radiation patch unit, a metal floor, a dielectric substrate, coaxial feed and a capsule shell. The antenna radiation patch unit is arranged on the upper surface of the dielectric substrate. The metal floor patch is arranged on the lower surfaceof the dielectric substrate. The whole antenna is nested in the capsule in a conformal bending way so as to form an internal hollow structure. The whole antenna radiation patch unit has a parallelogram structure. Two slot structures symmetrical about the longitudinal axis are arranged near the feed point, and a rectangular patch is connected inside by using a high impedance line to be perpendicular to the slot structures. The antenna excites the radiation patch unit through a 50ohm coaxial cable. The multi-polarization conformal antenna has the advantages of being flexible in conformation, small in internal space volume occupation of the capsule, multi-polarization, anti-electromagnetic interference and wide in band and is suitable for the capsule endoscope system and can radiate or receive arbitrary polarized waves.

Description

technical field [0001] The invention relates to the communication field, in particular to a multi-polarization conformal antenna for a capsule endoscope. Background technique [0002] To establish a reliable communication between the body and the body of a wireless capsule endoscope system depends to a large extent on the performance of the antenna inside the capsule. The position and direction of the capsule in the human body are uncertain, and the space inside the capsule is limited, and other electronic components need to be accommodated: transceivers, batteries, LED lights, cameras, etc. Therefore, antenna design needs to consider many of the above factors: lossy dispersion characteristics of human tissue, electromagnetic compatibility issues, miniaturization, etc. [0003] Most of the antenna technologies currently used in capsule endoscopes are designed as built-in helical antennas or planar antennas, which have the disadvantages of large size and easy polarization mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/27H01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q15/24
CPCH01Q1/273H01Q1/38H01Q1/48H01Q1/50H01Q1/526H01Q15/24
Inventor 刘雄英肖巧勤翟志远
Owner SOUTH CHINA UNIV OF TECH
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