Antenna device and mobile terminal using the antenna device
An antenna device and antenna unit technology, which is applied in the directions of antenna grounding device, antenna grounding switch structure connection, antenna unit combination with different polarization directions, etc., can solve the problems of low antenna radiation efficiency and insufficient breakpoint isolation, and achieve high Efficiency, impact reduction effect
Inactive Publication Date: 2021-02-23
AAC TECH NANJING
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Problems solved by technology
[0005] The purpose of the present invention is to provide an antenna device, which effectively solves the technical problems of low radiation efficiency and insufficient breakpoint isolation of traditional antennas
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[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0033] see figure 1 , figure 1 It is a structural schematic diagram of the antenna device of the present invention. The present invention provides an antenna device 200, comprising a metal frame 1, a ground plate 3 accommodated in the metal frame 1, and a circuit board 2 stacked on the ground plate 3, the ground plate 3 and the The circuit board 2 is electrically connected.
[0034] The metal frame 1 is arranged around the circuit board 2 and forms a gap th...
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The invention provides an antenna device, comprising a metal frame, a ground plate and a circuit board; a fracture is formed on the metal frame; the fracture is divided into a first radiator and a second radiator; the antenna device further includes a first radiator and a second radiator. a grounding terminal, a second grounding terminal, a first feeding terminal and a second feeding terminal; the first grounding terminal, the first feeding terminal and the first radiator form a first antenna unit; the second grounding terminal , the second feeding terminal and the second radiator form a second antenna unit; the first antenna unit further includes a first inductor; the second antenna unit further includes a first capacitor. Compared with the related art, in the antenna device provided by the present invention, the first antenna unit realizes the middle frequency band, and the second antenna unit realizes the low frequency band and the high frequency band, so as to achieve the coverage of the entire high, middle and low frequency bands; meet the CA requirements and realize the low frequency band coverage At the same time, it reduces the impact on the high frequency, and has more balanced and higher efficiency in the low frequency, mid frequency and high frequency.
Description
【Technical field】 [0001] The present invention relates to the technical field of antennas of communication equipment, in particular to an antenna device applied to a mobile terminal with a metal casing. 【Background technique】 [0002] With the development of mobile communication technology, mobile phones, PADs, notebook computers, etc. have gradually become indispensable electronic products in daily life, and these electronic products are all updated to electronic communication products that add antenna devices to make them have communication functions. However, consumers are no longer only satisfied with their application functions, and their requirements for the appearance of the electronic communication products are also constantly increasing. The electronic communication product with a metal casing has a good texture and is durable, so it is welcomed by many consumers. [0003] In related technologies, LTE requires mobile terminal antennas to cover increasingly wider fr...
Claims
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IPC IPC(8): H01Q1/48H01Q1/50H01Q21/24H01Q1/38
CPCH01Q1/38H01Q1/48H01Q1/50H01Q21/24
Inventor 陈海兵王超
Owner AAC TECH NANJING