Coupling feed-in type antenna device for mobile phone

Abstract

The invention discloses a coupling feed-in type antenna device for a mobile phone. The antenna device comprises a main board arranged in the mobile phone, a metal decorative piece shaped like two squares sleeved together and mounted on the front surface of the mobile phone, an antenna carrier mounted on the mobile phone housing, and an antenna branch I and an antenna branch II which are arranged on the antenna carrier, wherein a gap is formed on the antenna branch II; a radio frequency feed source is arranged on the main board and connected with the antenna branch II through an antenna connector; the main board is connected with the antenna branch I and the metal decorative piece through antenna connectors; and the metal decorative piece is communicated with the antenna branch II through an antenna connector. The antenna device has the advantages that the metal decorative piece on the front surface of the mobile phone is ingeniously adopted as a part of the antenna, so the metal texture of the whole phone is greatly enhanced in the aspect of modeling; and meanwhile, the coupling feed-in manner is adopted by the antenna device, so that the antenna sensitive problem that the antenna performance is severely worsened when a human hand tightly holds the gap on the metal frame is well solved.

Description

technical field [0001] The invention relates to a mobile phone antenna device, in particular to a coupling-feed type mobile phone antenna device. Background technique [0002] The vigorous development of wireless communication technology has led to more and more information sub-modules on the same terminal system. For example, current mobile phones, especially smart phone systems, are generally equipped with multi-seed communication modules. The increase of these information sub-modules will inevitably lead to antenna frequency bands. The expansion and the increase of the complexity of the antenna structure. At the same time, in order to win the favor of more consumers in the increasingly competitive consumer electronics market, mobile phones and other products are developing in the direction of thinner and stronger metal texture, and the thinner and stronger metal texture handheld terminal equipment will undoubtedly bring new advantages to the antenna design. Here comes th...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a method that can well solve the problem of the coexistence of large metal parts and antennas, better ensure the metal texture of the mobile phone in terms of shape, and at the same time solve the problem of when people hold the metal tightly. Antenna sensitivity problem occurs when the antenna performance is seriously deteriorated in the gap of the frame. The mobile phone antenna device with wide bandwidth and high efficiency ensures the excellent wireless communication performance of the mobile phone.

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