Antenna Grounding Layer for Directional Beam Control
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Solution Overview
Problem
Existing intelligent antenna apparatuses face a challenge in enhancing performance without increasing size, as the addition of reflectors to inhibit interference signals complicates the design and increases the system's volume.
Innovation Solution
Incorporating a grounding layer with specific shapes and sizes, integrated with a dielectric substrate, to restrain the transmitting direction of electromagnetic waves, allowing for improved radiation energy focus in certain directions while minimizing the overall antenna array size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a reflector is added to inhibit interference signals, then the directional pattern performance is improved, but the system size increases
Solution Approach 1:
The patent combines the reflector function with the grounding layer by integrating the reflector into the grounding structure. The reflector is formed as part of the grounding layer on the same substrate, merging two previously separate components (reflector and grounding) into a single integrated structure, thereby maintaining directional performance while reducing system size
Solution Approach 2:
The grounding layer is designed to serve multiple functions simultaneously: it provides electromagnetic grounding reference, acts as a reflector for directional beam formation, and serves as a mounting substrate for the antenna elements. This multi-functionality eliminates the need for separate reflector components, resolving the size-performance contradiction
2Reliability
If the distance between beam switching network and antenna is increased, then the antenna directional pattern is improved, but the device complexity increases
Solution Approach 1:
The beam switching network and antenna elements are integrated on the same substrate with optimized trace routing. The switching network traces are designed to provide appropriate electrical length and impedance transformation while maintaining compact physical dimensions, achieving directional performance without increasing device complexity
Solution Approach 2:
The patent transitions from three-dimensional spatial separation to two-dimensional planar integration on a substrate. By using microstrip transmission lines and printed circuit techniques, the required electrical distances and phase relationships are achieved through trace geometry rather than physical spacing, reducing device complexity
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
This approach enables an intelligent antenna apparatus with enhanced performance and reduced volume, achieving directional beam formation without the need for additional reflectors, thus optimizing space usage.
Implementation Method 1
by setting the shape or size of the grounding layer and the distance from the grounding layer to the antennas, the grounding layer is further configured to restrain a transmitting direction of the electromagnetic waves transmitted by the antennas
Data Source
AI summary
Embodiments of the present invention provide an antenna apparatus. The antenna apparatus includes multiple antennas, a switching unit, a grounding layer, connecting lines and a dielectric substrate. The antennas are configured to transmit and receive electromagnetic waves. The connecting lines are configured to connect the switching unit and the antennas. The switching unit is configured to selectively feed signals to the antennas through the connecting lines. The grounding layer serves as a reference of zero potential, and by setting the shape or size of the grounding layer and the distance from the grounding layer to the antennas, the grounding layer is further configured to restrain a transmitting direction of the electromagnetic waves transmitted by the antennas. The dielectric substrate is configured to allow the grounding layer to be printed thereon, and the dielectric substrate is further configured to allow the antennas, the switching unit and the connecting lines.