Beam Adjustable Antenna Device With Orthogonal Reflection Boards
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Solution Overview
Problem
Conventional beam adjustable antennas are bulky and complex due to their structure, which complicates the switching mechanism for changing the radiation pattern, leading to increased size and space requirements.
Innovation Solution
A dual-band antenna device with first and second reflection units, where the reflection boards are arranged orthogonally to the dual-band antenna, allowing for signal reflection and beam adjustment by switching the reflection boards to change the beam field, reducing the need for multiple antennas and simplifying the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antennas are used as a switching mechanism to change the radiation pattern, then beam adjustment capability is improved, but device complexity and volume increase
Solution Approach 1:
The patent divides the antenna system into multiple antenna elements (first antenna and second antenna) with distinct radiation patterns. By segmenting the radiation coverage into different directional patterns, the system achieves beam adjustment capability without requiring a complex mechanical switching mechanism. Each antenna element is optimized for specific directional coverage, allowing the system to switch between beam patterns by selectively activating different antenna elements.
Solution Approach 2:
The patent transitions from a single omnidirectional antenna to multiple directional antennas arranged in specific spatial configurations. This dimensional change in antenna arrangement creates different radiation patterns in three-dimensional space, enabling beam adjustment capability. The spatial distribution of multiple antenna elements provides directional control without requiring complex mechanical movement or switching mechanisms.
2Adaptability or versatility
If multiple antennas are used as a switching mechanism to change the radiation pattern, then beam adjustment capability is improved, but volume increases
Solution Approach 1:
The patent combines multiple antenna elements into a single integrated antenna unit with a unified feeding system and control mechanism. The first and second antennas are merged into one compact structure that can selectively activate different radiation patterns. This merging approach reduces the overall volume compared to using separate antenna systems, while maintaining the beam adjustment capability through electronic or mechanical switching between the integrated antenna elements.
Solution Approach 2:
The patent designs the antenna unit to perform multiple functions: it can operate in omnidirectional mode using the first antenna, switch to directional beam patterns using the second antenna, and provide spatial diversity for robustness against multipath fading. This multi-functionality is achieved within a single compact antenna unit, avoiding the need for multiple separate antenna systems and reducing overall volume.
3Reliability
If array antennas are used for spatial diversity to obtain diversity gain, then robustness to multipath fading is improved, but device volume increases
Solution Approach 1:
The patent applies different radiation pattern characteristics to different antenna elements within the array. The first antenna is optimized for omnidirectional coverage while the second antenna is optimized for directional beam patterns. This local quality differentiation allows the system to exploit spatial diversity for robustness against multipath fading while maintaining a compact volume, as each antenna element is specifically designed for its intended function rather than using identical large-scale array configurations.
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 efficient beam adjustment and signal enhancement, improving antenna gain, reducing power consumption, expanding coverage, and effectively managing spectrum use while reducing the physical size and complexity of the antenna unit.
Implementation Method 1
The first reflection unit has a plurality of first reflection boards to reflect the signal on the first frequency from the dual-band antenna. The second reflection unit has a plurality of second reflection boards to reflect the signal on the second frequency from the dual-band antenna
Data Source
AI summary
A beam adjustable antenna device includes a dual-band antenna, a first reflection unit, and a second reflection unit. The dual-band antenna radiates or receives a signal on a first frequency or a second frequency. The first reflection unit has a plurality of first reflection boards to reflect the signal on the first frequency from the dual-band antenna. The second reflection unit has a plurality of second reflection boards to reflect an signal on the second frequency radiated from the dual-band antenna. The plurality of first and second reflection boards are arranged beside the dual-band antenna, and a plane normal vector of each first and second reflection board is directed to the dual-band antenna. The first reflection unit is closer to the dual-band antenna than the second reflection unit.