Dual-frequency microstrip antenna applied to wireless capsule?endoscope

A capsule endoscope and microstrip antenna technology, which is applied to antennas, antenna supports/installation devices, and devices that enable antennas to work in different frequency bands at the same time, can solve the problem of occupying capsule space, high communication frequency, and short battery maintenance time. and other problems to achieve the effect of reducing space, increasing frequency bandwidth, and reducing capsule size

Inactive Publication Date: 2014-05-28
XIAN JIAOTONG LIVERPOOL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a dual-frequency microstrip antenna applied to wireless capsule endoscopes, which solves the problems of the microstrip antennas used in wireless capsule endoscopes in the prior art occupying space in the capsule, high communication frequency, and battery maintenance time. Short and other technical issues

Method used

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  • Dual-frequency microstrip antenna applied to wireless capsule?endoscope
  • Dual-frequency microstrip antenna applied to wireless capsule?endoscope
  • Dual-frequency microstrip antenna applied to wireless capsule?endoscope

Examples

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Embodiment 1～2

[0043] Embodiments 1-2 are applied to the dual-frequency microstrip antenna of the wireless capsule endoscope

[0044] Such as figure 1 As shown in (a), the dual-frequency microstrip antenna applied to the wireless capsule endoscope is an antenna attached to the outer wall of the capsule of the wireless capsule endoscope, and is applied to a general wireless capsule endoscope. Designed on a substrate with a length of 30mm and a width of 25mm, the dielectric constant of the substrate is 3.7, the thickness of the copper foil is 0.035mm, and the figure 1 The antenna shown in (a) is placed in a phantom body with a dielectric constant of 56 and a conductivity of 0.8 S / m. In order to reduce the space occupied in the capsule shell, the invented antenna is pasted on the outer wall of the capsule shell to obtain the antenna in the final use state (such as figure 2 (a) shown). The invented antenna requires a capsule shell radius of 5 mm.

[0045] In order to further reduce the size...

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Abstract

The invention discloses a dual-frequency microstrip antenna applied to a wireless capsule?endoscope. The microstrip antenna is attached to the outer wall of the capsule of the wireless capsule?endoscope. The dual-frequency microstrip antenna applied to the wireless capsule?endoscope is characterized in that the microstrip antenna comprises a feeder terminal, an outer loop antenna part and an inner loop antenna part, wherein the feeder terminal serves as the input end of the microstrip antenna; the outer loop antenna part and the inner loop antenna part are electrically connected with the feeder terminal; the length of the outer loop antenna part is corresponding to the full wavelength of the center frequency of a first desired frequency band; the length of the inner loop antenna part is corresponding to the full wavelength of the center frequency of a second desired frequency band; the inner loop antenna part is embedded inside the outer loop antenna part; and the center frequencies of the first desired frequency band and the second desired frequency band are no more than 1 Ghz. The antenna is a wall-attaching antenna attached to the outer wall of the capsule, the working frequency is lower than 1Ghz, an ultra?bandwidth is provided, the size is small, and the antenna is suitable to work inside the small intestine of a human body.

Description

technical field [0001] The invention belongs to the technical field of in vivo detection and detection, and in particular relates to a dual-frequency microstrip antenna applied to a wireless capsule endoscope. Background technique [0002] The history of humans using endoscopes to detect internal organs can be traced back to the 19th century. In 1806, German scientist Philipp Bozzini first invented the prototype of an endoscope that used candlelight to detect human bladder and intestines. Since then, different types of endoscopes (such as gastroscopes, used to detect gastric lesions; colonoscopes, used to detect intestinal lesions) have been continuously developed and improved to help doctors detect diseases of the digestive system in vivo . [0003] In the past two decades, related science and technology have developed rapidly. A medical auxiliary device that can be used to replace gastroscopy and colonoscopy—the wireless capsule endoscope was born, which enables simultane...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/22H01Q5/01H01Q5/10
Inventor 林永义王炤杨民助王璟琛
Owner XIAN JIAOTONG LIVERPOOL UNIV
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