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A low coupling full-duplex MIMO antenna array with coupled signal cancelling

An antenna array and full-duplex technology, which is applied in the direction of individually powered antenna arrays, antenna arrays, antenna unit combinations with different polarization directions, etc., can solve problems such as antenna design, component positioning, and directional space constraints

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

AI Technical Summary

Problems solved by technology

Full-duplex transmission and reception causes the signal being transmitted to potentially overwrite other signals being received
In Multiple-Input-Multiple-Output (MIMO) antenna array implementations, antenna elements are arranged on a limited ground plane and within a lower profile (i.e., antenna depth), which has significant impact on antenna design and Positioning and orientation create space constraints

Method used

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  • A low coupling full-duplex MIMO antenna array with coupled signal cancelling
  • A low coupling full-duplex MIMO antenna array with coupled signal cancelling
  • A low coupling full-duplex MIMO antenna array with coupled signal cancelling

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Embodiment Construction

[0032] For purposes of illustration, the following detailed description contains various exemplary embodiments, implementations, examples and specific details in order to provide a thorough understanding of the present invention. It is evident, however, that in some cases the disclosed embodiments may be practiced without these specific details or with an equivalent arrangement. The invention should in no way be limited to the illustrative implementations, drawings and techniques illustrated below, including the designs and implementations illustrated and described herein, but rather be within the scope of the appended claims along with their full scope of equivalents Modified within.

[0033] The following are combined by way of example only Figure 1 to Figure 6 Embodiments are described. Full-duplex antennas require high isolation (>45dB isolation, or 1 / (31,000) power coupling) between the Tx and Rx antenna ports, especially in the 1.9GHz to 2.3GHz frequency range. To ac...

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PUM

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Abstract

A full-duplex 2x2 multiple-input multiple-output (MIMO) antenna array is provided. An antenna reflector defining an x-y plane provides a plurality of antenna elements on the reflector. The linear polarization elements of the antenna elements are arranged in orthogonal polarizations for each transmit and receive pair. The elements are aligned in the same direction for half the orthogonal pair. A pair of elements are aligned along an axis to provide two coupled phase offset signals at a third element. The third element is collinear to the element of the first element defining a line of symmetryand parallel the direction of the element of the second element. The antenna array provides improved isolation between orthogonal ports and between transmitting and receiving ports by providing coupled signal cancelling between ports. This technique also increases boresight radiated pattern gain, as an additional benefit.

Description

[0001] Related Applications Cross Application [0002] This patent application requires the invention titled "A Low Coupling Full-Duplex MIMO Antenna Array with CoupledSignal Cancellation (A Low Coupling Full-Duplex MIMO Antenna Array with CoupledSignal Cancelling)" filed on June 24, 2016 No. 15 / 192,230 United States Patent Application No. , the entire content of which is incorporated herein by reference. technical field [0003] The present invention relates to an implementation manner of an antenna array, in particular to an implementation manner of a 2x2 Multiple-Input-Multiple-Output (Multiple-Input-Multiple-Output, MIMO) antenna array. Background technique [0004] Full-duplex antennas require a high degree of isolation between the transmit (Tx) and receive (Rx) ports because data transmission and reception occur simultaneously on the same frequency. Full-duplex transmission and reception causes the signal being transmitted to potentially overwrite other signals being ...

Claims

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Application Information

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IPC IPC(8): H01Q21/26
CPCH01Q1/243H01Q1/525H01Q19/10H01Q21/062H01Q21/065H01Q21/24H04B7/0413H04B7/10H04L5/14H01Q1/48H01Q9/04H01Q15/14H01Q21/00H01Q21/06
Inventor 保罗·罗伯特·华生
Owner HUAWEI TECH CO LTD