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Antenna device and wireless device having same

A technology of antenna device and radiating element, which is applied in the field of wireless devices and antenna devices, can solve the problems of antenna not operating, shell damage, etc., and achieve the effect of high position robustness

Active Publication Date: 2019-03-01
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially when a brittle material such as glass or ceramics is used for the case and the case forms an antenna, when a strong impact is applied from the outside when the power is fed through the feed pin etc., the stress concentrates on one point of the case. This may cause damage to the case, and the antenna will not work

Method used

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  • Antenna device and wireless device having same
  • Antenna device and wireless device having same
  • Antenna device and wireless device having same

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Embodiment Construction

[0018] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0019] figure 1 It is a perspective view showing a simulation model on a computer for analyzing the operation of the antenna device 1 which is one embodiment of the present invention. As the electromagnetic field simulator, Microwave Studio (registered trademark) (CST Corporation) was used.

[0020] The antenna device 1 is, for example, an antenna mounted on the wireless device 100 . Examples of the wireless device 100 include the mobile body itself or a wireless communication device built in the mobile body. Examples of mobile objects include portable mobile terminal devices, vehicles such as automobiles, robots, and the like. Specific examples of the mobile terminal device include electronic devices such as mobile phones, smartphones, tablet computers, game machines, televisions, and music and video players. The antenna device 1 includes a ground plane 70 , a fee...

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Abstract

An antenna device provided with: a power feeding element connected to a power feeding point; and a radiation element which is disposed apart from the power feeding element, to which power is fed by electromagnetic field coupling to the power feeding element, and which functions as a radiation conductor, wherein the radiation element comprises a power fed part to which power is fed from the power feeding element, and when the wavelength in a vacuum at a resonance frequency in a basic mode of the radiation element is taken as λ0, the shortest distance between the power fed part and a ground reference at the power feeding point is 0.0034-0.21 λ0 inclusive.

Description

technical field [0001] The present invention relates to an antenna device and a wireless device including the antenna device. Background technique [0002] In recent years, the number of antennas mounted on portable wireless devices and the like has been increasing, and the integration density of circuit boards has increased. Therefore, the antennas are mounted on places separated from the circuit board, such as the surface of the case or inside the case. [0003] For example, the antenna conductor (radiation conductor) disclosed in Patent Document 1 is formed on the decorative surface of the casing and physically contacts the feed pin provided on the substrate (see Patent Document 1). figure 2 ). When such a feed pin is used, in order to improve reliability when an impact is applied from the outside, a special connection terminal having a mechanism for mitigating the impact, such as a spring pin connector, is used. In addition, there is a power feeding system disclosed in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/50H01Q1/38
CPCH01Q1/38
Inventor 园田龙太井川耕司
Owner ASAHI GLASS CO LTD