Gravity-Steered Antenna Structure for Automatic Beam Alignment
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Solution Overview
Problem
Conventional antennas face challenges in adjusting their radiation patterns and directions due to environmental deviations, leading to reduced communication quality, and existing beam steering technologies involve complex mechanical or electrical components.
Innovation Solution
An antenna structure with a printed circuit board and an insulation cavity containing a fluid and a metal part, where the metal part moves within the cavity due to gravity and buoyancy, automatically adjusting the main radiation direction to a vertical orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional mechanical or electrical beam steering is used to adjust radiation direction, then the antenna can change its main radiation direction to an expected direction, but the device complexity increases due to phase shift circuits and electronic components
Solution Approach 1:
The patent extracts the complex phase shift circuit and electronic control components from the beam steering system. Instead of using electronic phase shifting, the invention uses a simple mechanical structure where a dielectric resonator with an movable metal part can be positioned at different locations to achieve beam direction control, eliminating the need for complex electronic components.
Solution Approach 2:
The patent replaces the electronic phase shift system with a mechanical positioning system. The metal part within the dielectric resonator is moved to different positions using mechanical means rather than electronic control, substituting complex electronic beam steering with a simpler mechanical arrangement that achieves the same radiation pattern adjustment.
2Reliability
If the antenna structure uses a fixed radiation pattern, then the manufacturing is simpler, but the communication quality deteriorates when the main radiation direction deviates from the expected direction due to environmental factors
Solution Approach 1:
The patent introduces dynamic adjustability to the antenna structure by enabling the metal part within the dielectric resonator to be repositioned. This allows the radiation pattern to be dynamically adjusted to match different environmental conditions and expected communication directions, improving reliability without requiring a completely complex reconfigurable antenna system.
Solution Approach 2:
The patent changes the physical position parameter of the metal part within the dielectric resonator to adjust the radiation characteristics. By moving the metal part to different locations, the radiation pattern and main beam direction are modified to adapt to environmental conditions, improving communication quality through simple parameter adjustment rather than structural redesign.
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 structure effectively and simply adjusts its radiation direction based on the environment without complex components, enhancing communication quality in various scenarios.
Implementation Method 1
The metal part is subjected to gravity and buoyancy in the fluid, resulting in a resultant force that always points to a vertical direction
Implementation Method 2
The metal part is subjected to gravity and buoyancy in the fluid, resulting in a resultant force that always points to a vertical direction
Implementation Method 3
the insulation cavity, the fluid, and the metal part form a dielectric resonator that is configured to form a first resonance of the antenna structure
Data Source
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Figure 5(a)~5(b)
AI summary
Embodiments of this application provide an antenna structure and a communication device. The antenna structure includes: a printed circuit board PCB, where the PCB includes a ground plane, and a feed part is disposed on the PCB; and an insulation cavity, where the insulation cavity is fastened to the ground plane, the insulation cavity includes a fluid and a metal part, and the metal part moves along an inner wall of the insulation cavity in the fluid as the antenna structure moves. According to the antenna structure provided in embodiments of this application, a main radiation direction of an antenna can be automatically adjusted based on an environment in which the antenna structure is located.