Surface Mount Dielectric Antenna Arrays for Wireless Power
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Solution Overview
Problem
Conventional wireless power transmission antennas have large cross-sectional areas, making them unsuitable for integration with consumer electronic devices, which limits their aesthetic appeal and the number of antennas that can be used in arrays, thereby restricting beamforming and power distribution capabilities.
Innovation Solution
The development of surface mount dielectric antennas with a compact form factor, allowing for large-scale arrays to be integrated with consumer devices without compromising aesthetics, featuring a printed circuit board with a dielectric resonator and feed elements that conduct and radiate power transmission signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If existing antennas are used for wireless power transmission, then power transmission capability is achieved, but the cross-sectional area becomes large which compromises aesthetic appearance and limits integration with consumer devices
Solution Approach 1:
The antenna is divided into multiple discrete antenna elements arranged in an array configuration. Each element contributes to the overall power transmission capability while the individual small size of each element allows for compact integration. The segmented structure enables beamforming through phase and amplitude control of each element, achieving high power transmission with reduced individual element size.
Solution Approach 2:
The patent transitions from conventional planar antenna designs to a three-dimensional array configuration with elements positioned at different spatial coordinates. This dimensional expansion allows the antenna system to achieve high gain and power transmission capability through spatial distribution of elements, while maintaining a compact footprint when viewed from any single dimension.
2Power
If existing antennas with large cross-sectional areas are used, then wireless power transmission is achieved, but the number of antennas that can be integrated in an array is limited, restricting beamforming and power distribution properties
Solution Approach 1:
The antenna system is segmented into multiple identical or similar antenna elements that can be replicated and arranged in various array configurations. This segmentation enables scalable array designs where the number of elements can be increased to enhance beamforming capability and power distribution, while each individual element maintains a standardized compact design for ease of integration.
Solution Approach 2:
The antenna array incorporates dynamic control of each element's amplitude and phase through electronic circuitry, enabling adaptive beamforming and power distribution patterns. This dynamic control allows the system to optimize power transmission to different spatial locations and adjust beam directions without physical reconfiguration, enhancing power distribution flexibility and array scalability.
3Ease of operation
If conventional antenna designs are used, then wireless power transmission function is provided, but aesthetic appearance of consumer devices is compromised
Solution Approach 1:
By segmenting the antenna into multiple small elements, the overall visual impact is reduced compared to a single large antenna. The distributed small elements can be more easily concealed or integrated into device housings, maintaining aesthetic appeal while collectively providing the necessary power transmission effectiveness through their combined radiation pattern.
Solution Approach 2:
The antenna elements are designed to be nested within or integrated into the device structure itself, with elements potentially embedded in housing panels or positioned within existing device cavities. This nesting approach allows the antenna system to be concealed within the device form factor, preserving aesthetic appearance while maintaining full wireless power transmission functionality.
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
Enables improved beamforming and power distribution characteristics compared to conventional designs, allowing for more efficient and aesthetically pleasing wireless power transmission in consumer devices.
Implementation Method 1
a dielectric resonator that is mechanically coupled to the PCB and configured to radiate the first power transmission signal
Implementation Method 2
a first feed element that is electronically coupled to the first transmission line and to the dielectric resonator. The first feed element is configured to receive the first power transmission signal via the first transmission line and excite the dielectric resonator
Data Source
AI summary
A wireless power transmission antenna includes a printed circuit board (PCB) with a first transmission line that conducts a first power transmission signal. A dielectric resonator that is mechanically coupled to the PCB is configured to radiate the first power transmission signal. A first feed element that is electronically coupled to the first transmission line and to the dielectric resonator is configured to receive the power transmission signal via the first transmission line and excite the dielectric resonator with the first power transmission signal.