Adjustable WiGig Antenna Structure for Head-Mounted Display Alignment
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Solution Overview
Problem
WiGig technology at 60 GHz faces challenges with poor penetrability and short transmission distance due to signal blocking by objects, and antenna directivity issues that lead to incorrect or incomplete data reception.
Innovation Solution
An antenna structure with two body portions, each with a pivoting end and a signal transceiving end, is designed to be adjustable and extendable. This structure is mounted on a head-mounted wireless transmission display device, allowing the signal transceiving ends to be positioned at optimal angles for maximum directivity and stability during data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If WiGig technology is used for wireless transmission at 60 GHz, then data transmission speed is improved (up to 7 Gbit/s), but signal penetrability deteriorates due to blocking by objects such as walls, ceilings and floors
Solution Approach 1:
The patent employs a movable antenna structure that can dynamically adjust its position and orientation. The antenna is mounted on a movable platform that can change location and angle, allowing the system to adapt to different transmission environments and maintain reliable 60 GHz signal transmission despite the frequency's poor penetrability through obstacles
2Device complexity
If a fixed antenna is used for receiving 60 GHz signals, then device complexity is reduced, but transmission reliability deteriorates due to directivity issues when the antenna is not aligned with the transmitting end
Solution Approach 1:
The antenna structure is designed to be movable rather than fixed, allowing it to dynamically adjust its orientation to maintain alignment with the signal transmitting end. This dynamic adjustment capability ensures reliable data reception at 60 GHz while keeping the overall system relatively simple
Solution Approach 2:
The movable antenna system can autonomously adjust its position and orientation to optimize signal reception. The system self-adjusts to maintain proper alignment with the transmitting end, eliminating the need for complex external alignment mechanisms or manual intervention
3Reliability
If the antenna structure is made extendable for optimal positioning, then signal transmission stability is improved, but device complexity increases due to folding and extending mechanisms
Solution Approach 1:
The antenna structure incorporates extendable and foldable components that allow it to dynamically change its configuration. The structure can extend to optimal positions for signal transmission and fold back when not in use, providing transmission stability while maintaining portability
Solution Approach 2:
The antenna structure uses a nested or telescopic design where components can be folded into each other when not in use. This nesting principle allows the extendable antenna to be compact during storage while providing full extension capability during operation, balancing complexity with functionality
Data Source
AI summary
An antenna structure is capable of transceiving signals for a head-mounted wireless transmission display device including a display screen assembly. The antenna structure includes at least two body portions. Each of the body portions has at least a signal transceiving end. The body portions are respectively arranged at left and right sides of the display screen assembly. The signal transceiving ends of the body portions are extended outward from the left and right sides of the display screen assembly respectively. A first distance between the two signal transceiving ends is greater than a width of the display screen assembly.