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MIMO antenna device and mobile terminal

An antenna device and mobile terminal technology, which is applied to antenna grounding devices, antennas, antenna arrays, etc., can solve problems such as affecting the performance of antenna isolation and small available area of ​​the antenna, and achieves improved isolation, reduced electromagnetic coupling, and extended frequency. The effect of bandwidth

Active Publication Date: 2016-03-23
杭州东南吉通网络有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the small area available for the antennas of mobile terminal products, this will cause mutual coupling between the MIMO dual antennas when they are placed in a compact manner, which will affect the performance of the antennas such as isolation.

Method used

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  • MIMO antenna device and mobile terminal

Examples

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Embodiment Construction

[0031] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. Rather, the embodiments are provided to explain the principles of the invention and its practical application, thereby enabling others skilled in the art to understand the invention for various embodiments and with various modifications as are suited to particular intended uses.

[0032] refer to figure 1 , figure 2 , the MIMO antenna device provided in this embodiment includes a main board 1 , a ground plane 2 , a first antenna unit 3 , and a second antenna unit 4 .

[0033] The main board 1 is a flat plate structure, where the upper surface of the main board 1 is defined as the front of the main board 1, the lower surface of the main board 1 is the back of the main board 1, and the main board 1 in...

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Abstract

The invention provides an MIMO antenna device comprising a mainboard, a grounding board which is arranged on the main board, and a first antenna unit and a second antenna unit which are arranged on the mainboard in a mirror symmetry way. Each antenna unit comprises an antenna radiation body and a feed part. The grounding board is provided with a trough structure which is arranged between the feed parts of the two antenna units. The trough structure comprises a longitudinal trough and multiple transverse troughs which are intersected with the longitudinal trough. According to the MIMO antenna device and a mobile terminal, electromagnetic coupling between the antenna units is reduced by arrangement of multiple cross troughs on the grounding board arranged between the feed parts of the antenna units so that degree of isolation between the antenna units is improved, frequency bandwidth of the antenna units is expanded and transmission performance is also enhanced.

Description

technical field [0001] The invention relates to the field of antenna design, in particular to a MIMO antenna device and a mobile terminal. Background technique [0002] Multiple-Input Multiple-Output (MIMO) technology is the core technology in LTE (Long Term Evolution) and LTE-Advanced. Its essence is to use multiple transmitting antennas at the transmitting end and multiple receiving antennas at the receiving end. Diversity technology greatly improves the transmission rate. Therefore, in order to smoothly provide multimedia services, it is a development trend for mobile terminal products to use multiple antennas. However, due to the small area available for antennas of mobile terminal products, this will cause mutual coupling between MIMO dual antennas when they are placed compactly, affecting performance such as isolation of the antennas. Therefore, how to reduce isolation and increase bandwidth in a compact MIMO dual-antenna structure has important research value. Con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q21/00
CPCH01Q1/38H01Q1/48H01Q21/00
Inventor 高立业赵雪峰陈卫
Owner 杭州东南吉通网络有限公司
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