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Planar four-layer double-arm spiral broadband capsule antenna

A wide-band, planar technology, applied in the field of planar four-layer double-arm helical broadband capsule antenna, can solve the problems of complex structure, small gain, narrow bandwidth, etc., and achieve the effect of easy implementation, increased bandwidth, and small size

Inactive Publication Date: 2018-11-16
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Many existing antennas used in this system still have shortcomings such as large size, complex structure, narrow bandwidth, and small gain, and the antenna structure needs to be further improved

Method used

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  • Planar four-layer double-arm spiral broadband capsule antenna
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  • Planar four-layer double-arm spiral broadband capsule antenna

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Embodiment Construction

[0024] In order to deepen the understanding of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, which are only used to explain the present invention and do not limit the protection scope of the present invention.

[0025] Such as Figure 1-8 As shown, the present invention is a planarized four-layer double-arm helical broadband capsule antenna, including four layers of dielectric substrate C, the thickness of each layer of the dielectric substrate C is 0.6mm, and the material of the dielectric substrate is Rogers 3010 , the helical capsule antenna adopts a double-arm helical structure, and the helical arms on each layer are symmetrically distributed on a very thin dielectric substrate. When an input signal with a phase difference of 180° is input, compared with the single-arm helical antenna, the antenna radiation is completely There will be better effects in terms of directivi...

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Abstract

The invention discloses a planar four-layer double-arm spiral broadband capsule antenna. The planar four-layer double-arm spiral broadband capsule antenna comprises four layers of dielectric substrates C; the spiral capsule antenna adopts a double-arm spiral structure; spiral arms are symmetrically arranged on the front surface and the back surface of the dielectric substrate C on the first layer,and spiral arms are symmetrically arranged on the dielectric substrates C on the second layer, the third layer and the fourth layer; the spiral arms are connected end to end through metal through holes D; an input end A is further arranged on the back surface of the dielectric substrate C on the first layer; and input signals with the phase difference of 180 degrees are input from the input end Afor feeding. According to the antenna, a ground-penetrating monopole feed mode does not need to be adopted, so that the influence from the ground structure during antenna radiation is relatively low,and the application range is wider than that of a single-arm spiral antenna; structurally, the spiral arms are subjected to planarization, so that miniaturization of the antenna is realized; and on the aspect of the performance, the double-arm spiral antenna has a wider bandwidth than the single-arm spiral antenna, so that the antenna has a high prospect in the aspects of wearable and biomedicalapplications.

Description

technical field [0001] The invention belongs to the technical field of antenna manufacturing, and in particular relates to a double-arm helical antenna, especially a planarized four-layer double-arm helical broadband capsule antenna. Background technique [0002] In the field of modern medicine, Wired Gastrointestinal Endoscopes are usually used for the diagnosis and treatment of gastrointestinal diseases. Due to the limited length and the complex structure of the digestive organs in the human body, wired endoscopy has great limitations. With the development of technology, Wireless Capsule Endoscopes (WCE) as a new type of painless and non-invasive Gastrointestinal diagnostic technology has brought a new choice for the diagnosis of gastrointestinal diseases. The WCE system usually includes the main parts such as micro-camera, LED, battery, wireless transceiver, antenna, etc. It is a comprehensive system integrating optoelectronic engineering, image processing, information c...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q1/08H01Q1/22A61B1/04
CPCA61B1/00016A61B1/00064A61B1/041H01Q1/085H01Q1/22H01Q1/38H01Q1/50
Inventor 于映陈艺龙
Owner NANJING UNIV OF POSTS & TELECOMM
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