Compact Multi-Band Antenna Booster Layout for Port Isolation
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Solution Overview
Problem
Current wireless devices face challenges in integrating radiating systems that can efficiently operate at multiple communication systems and frequency bands due to limited space, and existing solutions often require multiple filters that degrade performance.
Innovation Solution
A compact radiating system with a booster arrangement featuring non-concatenated first and second boosters, where the boosters are arranged to minimize coupling and maximize isolation between ports, using a slot or gap in the ground plane layer and conductive elements connected to feeding points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multi-section antenna component is used to cover different communication systems, then the radiating system can operate at multiple frequency bands, but the dimensions of the piece hosting the antenna system increase due to concatenated sections
Solution Approach 1:
The patent transitions from a planar concatenated section arrangement to a three-dimensional stacked configuration. Multiple antenna sections are arranged vertically above each other rather than horizontally end-to-end, enabling multi-frequency operation while maintaining a compact footprint. The coupling elements extend between stacked sections, creating vertical electromagnetic coupling that achieves the desired resonance characteristics without increasing the horizontal dimensions.
Solution Approach 2:
The patent implements a nested structure where multiple antenna sections are stacked within a compact vertical space. Each antenna section is positioned above another, with coupling elements connecting them vertically. This nesting approach allows multiple functional sections to occupy a small volume, effectively reducing the overall dimensions while maintaining multi-frequency capability.
2Reliability
If multiple filters are included in the matching network to isolate different ports, then port isolation is improved, but the device complexity and performance degradation increase
Solution Approach 1:
The patent extracts the isolation function from the matching network filters and relocates it to the physical arrangement of antenna sections and coupling elements. By using vertically stacked sections with specific coupling configurations, the design achieves port isolation through spatial separation and electromagnetic coupling control, eliminating the need for additional filtering components in the matching network.
Solution Approach 2:
The coupling elements serve as intermediaries between stacked antenna sections, controlling the electromagnetic interaction between them. These coupling elements are designed to provide the necessary isolation between ports while maintaining the desired resonance characteristics, replacing the need for complex filter networks.
3Adaptability or versatility
If concatenated sections are arranged one next to each other to form a multi-section antenna, then different communication systems are covered, but the space occupied by the antenna system increases
Solution Approach 1:
The patent rearranges the antenna sections from a horizontal concatenation to a vertical stacking configuration. This dimensional change allows multiple antenna sections to be positioned above each other in the vertical dimension, maintaining the multi-frequency operation capability while significantly reducing the horizontal area occupied by the antenna system.
Solution Approach 2:
The patent utilizes thin coupling elements to connect the stacked antenna sections vertically. These thin film-like coupling structures enable compact vertical integration of multiple sections without requiring significant horizontal space, achieving a space-efficient multi-frequency antenna design.
Data Source
AI summary
A wireless device using a radiating system able to operate in more than one communication system features compact dimensions and comprises a radiating structure that contains a compact booster arrangement that comprises first and second boosters, arranged in a configuration such that the boosters are not concatenated between them, i.e., not being placed one next to each other. One of the boosters comprises a slot or a gap in a ground plane layer and another of the boosters comprises at least a conductive part or element connected at a point to an additional conductive element that comprises a feeding point. The radiating structure also comprises the ground plane layer and a radiofrequency system. The radiating system also comprises one or two ports, each providing operation at least at one of the communication systems of operation.