mmWave Antenna Spatial Distribution for Signal Isolation
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Solution Overview
Problem
Current communication devices face challenges in designing high-isolation communication devices with multiple radiation directions in limited indoor spaces due to signal reflection and multipath fading, particularly in indoor environments where wireless access points need to process signals from various transmission directions effectively.
Innovation Solution
The proposed communication device incorporates mmWave antenna elements and a display device with a partition line, where mmWave antenna elements are disposed in one space and microwave antenna elements are distributed in another, allowing for spatial diversity and reducing interference, while being embedded in a housing made of nonconductive material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antenna elements are placed in limited indoor space to achieve multiple radiation directions, then spatial coverage is improved, but signal isolation deteriorates due to signal reflection and multipath fading
Solution Approach 1:
The patent transitions from planar antenna arrangement to three-dimensional spatial distribution by placing mmWave antenna elements above the display device and microwave antenna elements below the display device. This vertical dimensionality change enables multiple radiation directions (front, back, upper) while maintaining signal isolation through spatial separation of different frequency bands and radiation patterns.
2Device complexity
If mmWave antenna elements are concentrated in one region to simplify structure, then device complexity is reduced, but radiation pattern coverage deteriorates
Solution Approach 1:
The patent segments the antenna system into distinct functional groups: mmWave antenna elements (first, second, third) positioned above the display for front, back, and upper radiation, and microwave antenna elements positioned below the display. Each segment handles specific frequency bands and radiation directions, achieving comprehensive coverage while maintaining manageable structural complexity through modular organization.
3Volume of moving object
If antenna elements are placed close to the display device to save space, then device volume is reduced, but Specific Absorption Rate increases due to energy overlap
Solution Approach 1:
The patent applies local quality by creating distinct spatial zones with different antenna element distributions: mmWave elements concentrated above the display for specific radiation patterns, microwave elements below the display for complementary coverage. This localized arrangement optimizes space utilization while controlling SAR through strategic positioning that prevents energy concentration in any single region.
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 enhances communication quality by preventing energy overlap, reducing Specific Absorption Rate (SAR), and achieving an almost omnidirectional radiation pattern, suitable for wireless access points and supporting mmWave communication.
Implementation Method 1
a first mmWave antenna element for generating front radiation, a second mmWave antenna element for generating back radiation, and a third mmWave antenna element for generating upper radiation
Implementation Method 2
The display device is embedded in the housing. In some embodiments, the housing is made of a nonconductive material
Data Source
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AI summary
A communication device includes one or more mmWave (Millimeter Wave) antenna elements and a display device. The display device has a partition line. A first region is formed above the partition line, and a second region is formed below the partition line. The mmWave antenna elements are disposed in the first region. There is no mmWave antenna element disposed in the second region.