Circular Patch Antenna Arc-Slot Structure for Lightweight GNSS Use
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Solution Overview
Problem
Traditional ceramic-based antennas for GNSS frequency bands are heavy and brittle, making them unsuitable for applications like UAVs where weight and impact resistance are critical.
Innovation Solution
The development of a circular patch antenna using a polymer dielectric substance fortified with ceramic particles, which is lighter, more impact-resistant, and offers improved mechanical robustness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional ceramic based materials are used for GNSS antenna, then the antenna meets performance requirements for operating bands, but the antenna becomes heavy and brittle
Solution Approach 1:
The patent applies composite materials by combining polymer dielectric substance with ceramic particles to create a hybrid material that exhibits properties of both components - the polymer provides lightness and flexibility while the ceramic particles contribute to dielectric performance and structural integrity, thereby achieving both weight reduction and maintained reliability
2Reliability
If traditional ceramic based materials are used for GNSS antenna, then the antenna meets performance requirements for operating bands, but the antenna becomes brittle and less impact-resistant
Solution Approach 1:
The composite structure of polymer matrix with dispersed ceramic particles creates a material that combines the brittleness resistance of polymers with the dielectric properties of ceramics, resulting in improved impact resistance while maintaining antenna performance characteristics
3Weight of moving object
If polymer dielectric substance fortified with ceramic particles is used, then the antenna weight is reduced and impact resistance is improved, but the material composition becomes more complex
Solution Approach 1:
The patent employs parameter changes by adjusting the concentration, size distribution, and morphology of ceramic particles within the polymer matrix to optimize the balance between weight reduction, impact resistance, and dielectric performance, thereby managing material complexity through controlled parameter variation
Data Source
Figure 1A
Figure 1B~1C
Figure 1D
AI summary
Circular patch antenna with integrated arc slots. In one embodiment, the circular patch antenna includes a top dielectric patch and a bottom dielectric patch. The top dielectric patch includes a first plurality of apertures while the bottom dielectric patch includes a second plurality of apertures. At least a portion of the first plurality of apertures and the second plurality of apertures are aligned with one another when the top dielectric patch is positioned over the bottom dielectric patch. A flex printed circuit board (PCB) is positioned between the top dielectric patch and the bottom dielectric patch and includes a plurality of arc slots, each of the plurality of arc slots are positioned between the first and second plurality of apertures and an external periphery of the flex PCB. Methods of operating the circular patch antenna as well as systems that incorporate the circular patch antenna are also disclosed.