Multi-Feed Antenna for Beam Control and Interference Reduction
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Solution Overview
Problem
Multi-antenna communication systems face challenges such as increased interference and limited space, which restrict the number of antennas that can be built, and general antennas only provide one radiation pattern, limiting their functionality.
Innovation Solution
The proposed antenna design features a radiator with multiple feeding and grounding portions that generate both wide and directional radiation patterns, allowing for efficient signal coverage in various orientations, and can be arranged in arrays to control beam forming, thereby overcoming space constraints and interference issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the quantity of antennas is increased to provide more radiation patterns, then the radiation pattern coverage is improved, but the interferences between antennas become more serious and the space requirements are not met
Solution Approach 1:
The patent applies multi-functionality by enabling a single antenna to generate multiple radiation patterns through different feeding ports. The antenna structure includes a radiator with multiple feeding portions (first feeding portion, second feeding portion, third feeding portion) that can be independently excited to produce different radiation patterns, allowing one antenna to perform the function of multiple antennas while reducing interference and space requirements
2Adaptability or versatility
If the quantity of antennas is increased to provide more radiation patterns, then the radiation pattern coverage is improved, but the space constraints make it difficult to build more antennas
Solution Approach 1:
The patent applies multi-functionality by enabling a single antenna to generate multiple radiation patterns through different feeding ports. The antenna structure includes a radiator with multiple feeding portions (first feeding portion, second feeding portion, third feeding portion) that can be independently excited to produce different radiation patterns, allowing one antenna to perform the function of multiple antennas while reducing interference and space requirements
Solution Approach 2:
The patent applies merging by combining multiple antenna functions into a single integrated antenna structure. Multiple feeding portions and grounding portions are integrated into one antenna unit, consolidating what would traditionally require multiple separate antennas into a single compact component that provides diverse radiation patterns
3Device complexity
If a general antenna is used, then the structure is simple, but the range of half-power angle is small and signal coverage is limited
Solution Approach 1:
The patent applies multi-functionality by enabling a single antenna to generate multiple radiation patterns through different feeding ports. The antenna structure includes a radiator with multiple feeding portions (first feeding portion, second feeding portion, third feeding portion) that can be independently excited to produce different radiation patterns, allowing one antenna to perform the function of multiple antennas while reducing interference and space requirements
Solution Approach 2:
The patent applies dynamics by making the antenna's radiation characteristics adjustable and reconfigurable. Different feeding ports can be selectively activated or combined to dynamically change the radiation pattern and half-power angle range, allowing the antenna to adapt its signal coverage area based on operational requirements while maintaining a relatively simple physical structure
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 antenna design achieves a wide signal cover area and directional signal coverage, enhancing transmission efficiency and flexibility in placement, allowing for use on ceilings and walls, while maintaining low reflection power and high transmission efficiency.
Implementation Method 1
a radiator (10), a first feeding portion (20), a second feeding portion (30), a loading portion (40), a first grounding portion (50) and a second grounding portion (60)... the first feeding portion (20) is electrically coupled to a central position of the radiator (10)... the second feeding portion (30) is electrically coupled to a corner of the radiator (10)
Data Source
AI summary
An antenna includes a radiator, a first feeding portion, a second feeding portion, a first grounding portion, a second grounding portion, and a loading portion. The radiator is parallel to the base board to radiate signals. A first end of the first feeding portion is electrically coupled to a central position of the radiator. A second end of the first feeding portion receives a first feeding signal to generate a first radiation pattern. A first end of the second feeding portion is electrically coupled to a first corner of the radiator. A second end of the second feeding portion receives a second signal to generate a second radiation pattern. The first grounding portion is electrically coupled between a second corner of the radiator and a ground plane of the base board. The second grounding portion is electrically coupled between a third corner of the radiator and the ground plane.