Rotating Antenna Chamber for Beamforming Measurement
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Solution Overview
Problem
Existing methods for measuring beamforming and polarization performance of electronic devices using multiple antennas are costly and inefficient, and can cause damage to the device under test due to rotation errors.
Innovation Solution
An antenna chamber with a signal generator, mounting unit, multiple antennas, and a control circuit that allows the device under test to form beams in specific directions and measures signal intensity using fewer antennas, minimizing damage and distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple antennas are arranged to correspond to all beam directions, then measurement completeness is improved, but cost and space efficiency deteriorate
Solution Approach 1:
The patent applies dynamics by making the antenna chamber rotatable to change measurement directions dynamically. Instead of having multiple fixed antennas for all directions, a single antenna is used with the chamber rotation providing dynamic access to different beam directions, thus reducing the number of antennas needed while maintaining measurement completeness
Solution Approach 2:
The patent introduces a new dimension by rotating the entire antenna chamber around the device under test. This rotational dimension allows a single antenna to effectively cover multiple directions that would otherwise require multiple fixed antennas, resolving the contradiction between measurement completeness and device complexity
2Measurement precision
If the device under test is rotated for multi-directional measurement, then all beam directions can be measured, but rotation errors occur and the device may be damaged
Solution Approach 1:
The patent inverts the conventional approach by keeping the device under test stationary and rotating the antenna chamber instead. This reversal eliminates the risk of damaging the device under test through rotation while still enabling multi-directional beam measurements through the chamber's rotational movement
Solution Approach 2:
The antenna chamber serves as an intermediary that rotates between the device under test and the antenna. This intermediary rotation mechanism enables multi-directional measurements without directly rotating or moving the device under test, thus preventing damage and rotation errors
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
Accurately measures beamforming performance with fewer antennas, reducing costs and minimizing damage to the device under test while maintaining high antenna performance.
Implementation Method 1
a signal generator, a mounting unit on which a device under test (DUT) is disposed, the DUT being electrically connected to the signal generator
Implementation Method 2
a plurality of antennas disposed at a position corresponding to the first direction from the DUT and positions corresponding to directions rotated by twice the first angle from the DUT based on the first direction and receiving a signal emitted from the DUT
Implementation Method 3
a signal meter configured to measure an intensity of a signal received from at least one of the plurality of antennas
Data Source
AI summary
An electronic device, according to one embodiment disclosed in the present disclosure, may be configured to: form a beam in any one direction of a first direction and directions rotated by a first angle on the basis of the first direction; control a device under test (DUT) so as to emit a designated signal by using the formed beam; and check antenna performance of the DUT at least on the basis of intensity measured from a signal measuring device. In addition, various embodiments inferred from the specification are also possible.