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Antenna assembly and self-curing decoupling method for reducing mutual coupling of coupled antennas

An antenna component and antenna technology, applied in antenna coupling, antenna components, and devices that enable antennas to work in different bands at the same time, can solve problems such as limiting the use of decoupling solutions

Active Publication Date: 2018-04-24
THE CHINESE UNIVERSITY OF HONG KONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The current trend in wireless terminals towards having smaller antenna gaps and more collocated antennas greatly limits the practical use of these existing decoupling schemes

Method used

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  • Antenna assembly and self-curing decoupling method for reducing mutual coupling of coupled antennas
  • Antenna assembly and self-curing decoupling method for reducing mutual coupling of coupled antennas
  • Antenna assembly and self-curing decoupling method for reducing mutual coupling of coupled antennas

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Embodiment Construction

[0050] Hereinafter, the present application will be explained in further detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are used to explain related inventions, not to limit the inventions. In addition, it should be noted that, for convenience of description, only a part of the present invention is shown in the drawings.

[0051] According to an embodiment, an antenna assembly is provided comprising at least two mutually coupled antennas, wherein a capacitive load is provided to at least one of the mutually coupled antennas to reduce mutual coupling between the antennas. The antenna provided with a capacitive load to ground may be any form of antenna including, but not limited to, inverted-F antennas, half-loop antennas, loop antennas, and patch antennas. Capacitive loads are placed at critical locations of the coupled antennas so that mutual coupling between the coupled antennas is reduced. The cr...

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Abstract

The disclosure provides antenna assemblies and methods for reducing mutual coupling of coupled antennas. According to an embodiment, the antenna assembly comprises: a first antenna; and a second antenna coupled with the first antenna; wherein a first capacitive load is provided to the first antenna at a first position of the first antenna so that a mutual coupling between the first antenna and thesecond antenna is reduced. According to the present disclosure, at least some of the following advantages may be achieved: 1) no any component that connects or structure between coupled antennas is required; 2) the capacitive load is very little frequency dependent so that the method is highly suitable for antenna decoupling at low frequencies; 3) the required capacitive load takes almost no space in the circuit layout; and 4) the load does not noticeably change antenna radiation patterns.

Description

technical field [0001] The present application relates to wireless communication devices, and more particularly, to antenna assemblies and methods for reducing mutual coupling between mutually coupled antennas. Background technique [0002] In order to meet the demands of various wireless services, more and more antennas need to be accommodated in a compact mobile terminal. As a result, the signal isolation between the antennas is increasingly insufficient, which leads to severe radio frequency interference between the juxtaposed antennas. In fact, this coexistence interference affects almost all modern wireless communication devices. Taking a mobile phone or a wireless router as an example, various communication systems including 2G (GSM), 3G (UMTS), 4G (LTE), Wi-Fi, GPS, and Bluetooth coexist in a very compact volume, and their operating frequency bands very close. Therefore, the mutual coupling between the antennas is severe, resulting in a decrease in antenna efficien...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/52
CPCH01Q1/521H01Q9/42H01Q5/371H01Q5/392H01Q1/52H01Q9/0421
Inventor 吴克利岁江伟韦大成
Owner THE CHINESE UNIVERSITY OF HONG KONG