Pixelated Antenna Multilevel Nesting for Wideband Reconfiguration
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Solution Overview
Problem
Current RF systems require large antennas or multiple antennas to achieve wideband capabilities, which is not suitable for devices with limited space, and they are not adaptable to changing frequency band requirements, leading to costly and time-consuming redesigns.
Innovation Solution
The development of miniature multifunctional antennas with pixelated radiating structures that can be optimized for size reduction and bandwidth enhancement, allowing for reconfiguration in the field to operate in different frequency bands and polarizations, using multilevel designs and controllers to multiplex feeds for wideband operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antennas or large antennas are used to achieve wideband capabilities, then bandwidth is improved, but device area increases
Solution Approach 1:
The patent implements a multilevel antenna structure where higher frequency pixelated radiating structures are nested on intermediate levels between the lower frequency radiating structure and the ground plane. This nesting approach allows multiple frequency bands to be integrated within a compact footprint, achieving wideband operation without proportionally increasing device area
Solution Approach 2:
The patent transitions from planar single-level antenna designs to three-dimensional multilevel structures. By stacking radiating elements at different heights above the ground plane and using pixelated geometries, the antenna achieves enhanced bandwidth and multiple polarizations within a limited planar footprint, effectively utilizing the vertical dimension
2Adaptability or versatility
If static antenna designs are used, then manufacturing simplicity is maintained, but adaptability to changing frequency requirements deteriorates
Solution Approach 1:
The patent implements reconfigurable pixelated radiating structures where individual pixels can be independently controlled to change the antenna's electrical characteristics. This dynamic reconfiguration capability allows the antenna to adapt to different frequency bands and operational requirements after manufacturing, while the underlying pixelated structure remains manufacturable using standard PCB or flexible circuit techniques
Data Source
AI summary
Miniature multifunctional antennas and related techniques are disclosed that are capable of wide bandwidth operation. In some embodiments, the antennas are capable of being reconfigured in the field for optimal performance in different frequency band configurations (e.g., a single wide instantaneous bandwidth, multiple smaller bands, etc.) and/or for purposes of self healing. In some embodiments, the antennas can be reconfigured in the field to achieve different polarizations (e.g., vertical, horizontal, circular). The antennas can be implemented in a very compact manner making them ideal for use in devices and platforms where size and weight are a concern.