Rotating Lens Antenna Chamber for Multi-Direction Beamforming Tests
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Solution Overview
Problem
Current antenna measurement systems face challenges in accurately testing beamforming performance without increasing costs or damaging electronic devices, particularly when testing in multiple directions, due to the need for multiple antennas or physical adjustments that can distort the device's appearance and performance.
Innovation Solution
An antenna chamber with a mounting part, a lens to refract millimeter wave signals, and a lens driving unit that rotates to direct the signals towards an antenna, allowing for precise measurement of beamforming performance using a single antenna, reducing chamber size and minimizing damage to the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antennas are placed inside the chamber to test beamforming performance in various directions, then measurement coverage is improved, but device complexity and chamber size increase
Solution Approach 1:
The patent employs a rotatable lens assembly that can dynamically change its orientation to different angles (0°, 45°, 90°, 135°) to redirect millimeter wave signals from a single fixed antenna to cover multiple measurement directions. This dynamic positioning replaces the need for multiple fixed antennas, achieving comprehensive measurement coverage while maintaining a simple single-antenna configuration.
Solution Approach 2:
The patent introduces a rotational dimension to the lens assembly, allowing it to sweep through different angular positions. This adds a temporal/spatial dimension to the measurement process, enabling a single antenna to effectively measure signals from multiple directions by capturing them at different rotational positions, thereby transforming a multi-antenna spatial problem into a single-antenna temporal-spatial solution.
2Adaptability or versatility
If the electronic device is physically adjusted to change direction for testing, then measurement versatility is improved, but device appearance may be damaged and measurement precision deteriorates
Solution Approach 1:
Instead of physically adjusting the electronic device under test to change its orientation, the patent inverts the approach by keeping the device fixed and instead rotating the lens assembly. The lens redirection mechanism captures signals from different directions and directs them to the fixed antenna, achieving measurement versatility without disturbing the device's appearance or antenna performance.
Solution Approach 2:
The rotatable lens assembly acts as an intermediary between the fixed electronic device and the fixed measurement antenna. It mediates the directional measurement requirement by optically redirecting signals from various angles to the single antenna, eliminating the need to physically adjust the device under test and thus preventing any damage or performance distortion.
3Device complexity
If a single antenna is used with lens redirection, then device complexity is reduced, but measurement precision may worsen due to signal refraction
Solution Approach 1:
The patent addresses measurement precision by dynamically adjusting the lens position and orientation parameters to optimal settings for each measurement angle. The lens driving unit controls the lens to be positioned at specific distances and angles relative to the antenna, compensating for refraction effects and ensuring accurate signal intensity measurements across all directional positions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables efficient measurement of antenna performance in various directions with reduced costs and minimal distortion, allowing for accurate assessment of beamforming capabilities without the need for multiple antennas or physical adjustments.
Implementation Method 1
a lens spaced apart from the mounting part to refract the millimeter wave signal radiated from the antenna module
Data Source
AI summary
According to various embodiments of the disclosure, disclosed is an antenna chamber which includes a mounting part to receive an external electronic device including an antenna module including a plurality of radiators to radiate a millimeter wave signal, a lens spaced apart from the mounting part to refract the millimeter wave signal radiated from the antenna module, an antenna spaced apart from the lens in a direction opposite to a direction of the mounting part to receive the millimeter wave signal refracted from the lens, and a lens driving unit to move the lens based at least on a first direction, which is set, such that the millimeter wave signal set to be radiated in the first direction from an external electronic device is refracted toward the antenna. Moreover, various embodiments found through the disclosure are possible.