Defected Ground Antenna Layout for Compact Multi-Antenna Devices
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Solution Overview
Problem
Existing antenna designs for consumer electronic products are cumbersome and complex, requiring time-consuming and labor-intensive adjustments due to environmental parameter influences, making them inefficient and costly.
Innovation Solution
The antenna system incorporates a defective ground structure board with a first insulating plate and a defective ground structure layer, along with an antenna structure board featuring inverted-F antennas and asymmetrical T-structure components, which are positioned on the defective ground structure layer to optimize performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional antenna design methods are used, then antenna performance can be achieved, but the design process is cumbersome and complicated, requiring continuous adjustment with the physical machine at different stages
Solution Approach 1:
The ground structure is segmented into a defective ground structure layer with periodic gaps, dividing the continuous ground plane into discrete sections. This segmentation creates a modular antenna system where the defective ground structure layer can be independently designed and manufactured, reducing overall design complexity while maintaining performance
Solution Approach 2:
The patent changes the ground structure parameter from a continuous ground plane to a defective ground structure with periodic gaps. This parameter change transforms the antenna design into a more stable configuration that requires minimal adjustment during manufacturing, eliminating the need for continuous tuning at different stages
2Reliability
If traditional antenna design is used, then antenna function is achieved, but it is greatly affected by environmental parameters, requiring time-consuming and labor-intensive adjustments
Solution Approach 1:
The defective ground structure layer is pre-designed with optimized gap patterns and dimensions before manufacturing. This preliminary optimization of the ground structure configuration ensures that the antenna maintains stable performance across different environmental conditions, reducing the need for post-manufacturing adjustments
Solution Approach 2:
The patent uses a standardized defective ground structure layer that can be replicated across different antenna designs and applications. This copying of the proven defective ground structure pattern ensures consistent performance and reduces the need for environmental adjustments in different deployment scenarios
3Area of stationary object
If multiple antennas are placed in limited space, then space utilization is improved, but design and adjustment becomes more complicated
Solution Approach 1:
The patent extends the antenna design into the vertical dimension by stacking multiple antenna bodies above the defective ground structure layer. This three-dimensional configuration allows multiple antennas to occupy limited planar space while maintaining proper spacing and performance, avoiding the complexity of planar optimization
Data Source
AI summary
The present disclosure provides an antenna system, which includes a defected ground structure board and an antenna structure board. The defected ground structure board includes a first insulating plate and a defected ground structure layer, and the defected ground structure layer is disposed on the first insulating plate. The antenna structure board is disposed on the defected ground structure board. The antenna structure board includes at least one antenna body and a second insulating plate, the at least one antenna body is disposed on the second insulating plate, and the second insulating plate is disposed on the defected ground structure layer.