Two-Beam Steering Device With Rotating Base Stage
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Solution Overview
Problem
Existing two-beam steering devices in free-space optical communication systems face limitations due to blind spots caused by fixed positions of single-beam steering devices, which restrict their field of regard and connectivity in high-level network topologies.
Innovation Solution
A two-beam steering device configuration featuring two single-beam steering devices attached to a motorized rotating base stage, allowing each device to steer electromagnetic waves in a full hemisphere field of regard without blind spots by rotating the base stage to ensure both devices can point to any direction pair within the field of regard.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If two single-beam steering devices are attached in fixed positions, then the device structure is simple, but blind spots appear in the field of regard due to blocking by the other device
Solution Approach 1:
The patent applies the dynamics principle by replacing fixed positions with a motorized rotating base stage that can dynamically adjust the orientation of the two single-beam steering devices. This allows the system to eliminate blind spots by rotating the base stage to positions where neither device blocks the other's field of regard, while maintaining full hemisphere coverage capability.
Solution Approach 2:
The patent introduces a third dimension of freedom by adding the rotating base stage that can rotate around a vertical axis. This additional rotational degree of freedom allows the system to overcome the blocking problem in the horizontal plane while maintaining the vertical field of regard coverage provided by the single-beam steering devices.
2Ease of manufacture
If two single-beam steering devices are used with fixed positions, then manufacturing is easier, but connectivity and resource utilization are limited
Solution Approach 1:
The rotating base stage introduces dynamic reconfigurability to the system, allowing the two single-beam steering devices to be repositioned to optimize connectivity in mesh FSO networks. This dynamic adjustment capability enables full hemisphere coverage and eliminates blind spots, significantly improving connectivity and resource utilization while maintaining relatively simple manufacturing of the individual components.
3Device complexity
If fixed position mounting is used for single-beam steering devices, then device complexity is reduced, but full hemisphere field of regard is not achievable
Solution Approach 1:
The patent transforms the static mounting structure into a dynamic one by incorporating a motorized rotating base stage. This allows the system to achieve full hemisphere field of regard by rotating the base stage to different orientations, ensuring that both single-beam steering devices can point to any direction pair within the complete field of regard without blocking each other.
Data Source
AI summary
A two-beam steering device comprising two single-beam steering devices and a motorized, rotating base stage, wherein each single-beam steering device is able to steer an electromagnetic wave beam in a full field of regard, wherein the two single-beam steering devices are fixed on top of the rotating base stage. The two-beam steering device can point the two individual beams into any direction pair in the entire field of regard with full flexibility.