VR Eyeglass Antenna Layout for Sub-6G and mmWave Crosstalk
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Solution Overview
Problem
Virtual reality devices equipped with Sub-6G and mmWave antennas face mutual crosstalk issues, affecting transmission range and radiation characteristics due to the need for specific arrangements of these antennas, which either reduce the transmission range of mmWave antennas or decrease the radiation characteristics of Sub-6G antennas.
Innovation Solution
The combination and strategic disposition of Sub-6G and mmWave antennas on a virtual reality device's main body portion, allowing for improved transmission coverage and radiation intensity by complementing each other's characteristics, with the mmWave antennas being disposed on the connection part and the Sub-6G antennas on the eyeglass frames, enabling a wide transmission range and radiation characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Sub-6G and mmWave antennas are arranged in a virtual reality device, then the device provides multiple frequency bands and improved communication capability, but mutual crosstalk between antennas affects transmission range and radiation characteristics
Solution Approach 1:
The patent divides the antenna system into separate functional groups: Sub-6G antennas (first-type) and mmWave antennas (second-type) are spatially segmented and disposed at different locations on the eyeglass frame. This segmentation reduces mutual crosstalk while maintaining multi-frequency band capability, resolving the contradiction between versatility and reliability.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement by disposing antennas on different surfaces and orientations of the eyeglass frame structure. This dimensional separation allows both antenna types to operate with optimal radiation patterns without interfering with each other, maintaining reliability while providing multi-band adaptability.
2Power
If mmWave antennas are used with beamforming directionality, then transmission focus and signal strength are improved, but transmission range is reduced compared to Sub-6G antennas
Solution Approach 1:
The patent combines both Sub-6G and mmWave antenna systems in a single virtual reality device, allowing the device to leverage the high signal strength of mmWave beamforming while maintaining extended transmission range through Sub-6G antennas. The complementary combination resolves the transmission range limitation of mmWave alone.
Solution Approach 2:
The patent employs parameter changes by dynamically selecting and adjusting operating frequencies between Sub-6G and mmWave bands based on transmission requirements. This allows the system to switch between long-range Sub-6G communication and high-power mmWave communication, effectively resolving the transmission range versus signal strength contradiction.
Data Source
AI summary
A virtual reality device is provided. The virtual reality device includes a main body portion, a plurality of first-type antennas, and a plurality of second-type antennas. The main body portion has a first side eyeglass frame, a second side eyeglass frame, and a connection part. The connection part is connected to the first side eyeglass frame and the second side eyeglass frame. The second-type antennas and the corresponding first-type antennas are respectively disposed on a first side of the first side eyeglass frame, on a second side of the second side eyeglass frame, and on the connection part. The first side of the first side eyeglass frame is opposite to the second side of the second side eyeglass frame.