Reflecting Units for Adaptive Omnidirectional Radiation Patterns
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Solution Overview
Problem
Conventional methods for generating omni-directional radiation patterns in wireless communication require a large number of antennas and complex spatial diversity configurations, making them costly and space-intensive.
Innovation Solution
An antenna device comprising an antenna unit surrounded by reflecting units, which are configured to adjust radiation patterns, including a control circuit to control the connection of reflecting units to a substrate, allowing for adaptive beam switching and efficient spectrum utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If spatial diversity is used to generate omni-directional radiation pattern, then radiation pattern coverage is improved, but the number of antennas and space requirement increase
Solution Approach 1:
The patent introduces reflecting units as intermediary elements between the antenna unit and the environment. These reflecting units redirect electromagnetic waves to create the desired omni-directional radiation pattern, eliminating the need for multiple antennas while achieving the same coverage effect through wave reflection and pattern adjustment.
Solution Approach 2:
The reflecting units create virtual images or copies of the antenna unit through reflection. By strategically positioning these reflecting units, the system generates multiple radiation paths that simulate the effect of having multiple physical antennas, achieving spatial diversity with a single antenna unit.
2Adaptability or versatility
If spatial diversity is used to generate omni-directional radiation pattern, then radiation pattern coverage is improved, but device complexity and cost increase
Solution Approach 1:
The reflecting units serve as simple intermediary structures that perform the complex function of pattern synthesis. Instead of complicating the antenna array configuration, the patent uses these passive reflecting elements to achieve the desired radiation characteristics, significantly simplifying the overall device complexity and reducing cost.
3Reliability
If conventional antenna arrays are used for spectrum utilization, then communication reliability is improved, but space requirement and manufacturing cost increase
Solution Approach 1:
The patent changes the fundamental parameters of the antenna system by introducing adjustable reflecting units that can dynamically modify the radiation pattern. This allows the system to maintain high communication reliability through adaptive beamforming and diversity reception while occupying minimal space, as the pattern control is achieved through parameter adjustment rather than physical antenna multiplication.
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
The solution enables a compact and cost-effective omni-directional antenna system that can dynamically adjust radiation patterns to enhance signal strength and reduce multipath fading, improving wireless communication efficiency.
Implementation Method 1
The reflecting units are configured to adjust a radiation pattern of the antenna unit
Data Source
AI summary
An antenna device includes an antenna unit and reflecting units. The antenna unit is arranged on a substrate. The reflecting units are arranged separately from each other on the substrate and surrounding the antenna unit. The reflecting units are configured to adjust a radiation pattern of the antenna unit, and each of the reflecting units includes a first portion and a second portion. The first portion has an upper side and a lower side, and the lower side of the first portion is coupled to the substrate. The second portion has a lower side connected to the upper side of the first portion. A width of the lower side of the first portion is smaller than a width of the lower side of the second portion.