Antenna Array Millimeter Wave Directivity Dielectric Housing
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Solution Overview
Problem
In 5G mobile communication technology, the short wavelength of millimeter wave signals is significantly affected by dielectric substances in electronic device housings, causing distortion of the radiation pattern and impacting communication performance.
Innovation Solution
An electronic device design with a housing featuring a front surface and rear surface made of dielectric substances of different permittivities, along with a side surface that surrounds the space between them, includes an antenna array positioned adjacent to the side surface and an electrical element spaced from the antenna array to direct the millimeter wave signal's radiation pattern towards the side surface, reducing distortion and enhancing directivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If millimeter wave signals are used for 5G communication, then bandwidth and information transmission capacity are significantly improved, but the short wavelength makes the radiation pattern highly sensitive to dielectric substances in the housing, causing distortion
Solution Approach 1:
A radiation pattern adjustment component is introduced as an intermediary element between the antenna array and the housing dielectric substances. This component acts as a mediator to compensate for the phase differences caused by the housing, thereby adjusting and optimizing the radiation pattern to maintain stability and directivity in the 5G millimeter wave frequency range
Solution Approach 2:
The radiation pattern adjustment component utilizes changes in electromagnetic wave propagation parameters (phase, amplitude, direction) by strategically positioning multiple antenna elements and using the adjustment component to modify the phase distribution. This allows the system to adapt the radiation pattern parameters to counteract the distorting effects of the housing dielectric substances
2Strength
If the housing includes dielectric substances for structural integrity, then mechanical strength is maintained, but the dielectric substances cause distortion of the radiation pattern when millimeter wave signals pass through
Solution Approach 1:
The invention acknowledges that dielectric substances in the housing cause phase differences in millimeter wave signals, but instead of removing these substances, it uses the radiation pattern adjustment component to convert this harmful phase distortion into a beneficial effect by strategically adjusting the phase distribution to achieve optimal radiation patterns and enhance directivity toward the side surface
Solution Approach 2:
The radiation pattern adjustment component is positioned specifically adjacent to the side surface of the housing where the antenna array is located. This localized placement allows the adjustment to be applied precisely where the millimeter wave signals interact with the housing dielectric substances, targeting the specific region where radiation pattern distortion occurs without affecting other parts of the device
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design minimizes the influence of the dielectric housing on millimeter wave signal radiation, allowing for improved communication performance by maintaining directivity in the intended direction and reducing distortion, thus enhancing the electronic device's communication capabilities.
Implementation Method 1
an antenna array positioned adjacent to the side surface and configured to radiate a millimeter wave signal
Implementation Method 2
a housing that includes a front surface comprising a dielectric substance having a first permittivity, a rear surface comprising a dielectric substance having a second permittivity... when an electromagnetic wave passes through a dielectric substance having permittivity of a specified magnitude, a wavelength of the electromagnetic wave may be changed
Implementation Method 3
an electrical element positioned to be spaced from the antenna array by a specified distance such that a radiation pattern of the millimeter wave signal radiated from the antenna array has a directivity toward the side surface
Data Source
AI summary
An electronic device is provided. The electronic device includes a housing that includes a front surface, a rear surface facing away from the front surface, and a side surface surrounding a space between the front surface and the rear surface, wherein the front surface includes a dielectric substance having a first permittivity and the rear surface includes a dielectric substance having a second permittivity, an antenna array that is positioned adjacent to the side surface, radiates a millimeter wave signal, the antenna array including at least one antenna element, a communication circuit that is electrically connected with the antenna array and communicates by using the millimeter wave signal, and an electrical element that is positioned to be spaced from the antenna array by a specified distance such that a radiation pattern of the millimeter wave signal radiated from the antenna array has a directivity toward the side surface.