Millimeter-Wave Antenna Array Segmentation for 5G Signal Stability
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Solution Overview
Problem
The existing 5G terminal antenna systems using a phased array of N*N dot matrix are bulky and difficult to deploy, with complex scanning angle settings, leading to unstable signal reception due to limited scanning coverage.
Innovation Solution
The antenna system employs four millimeter-wave array antennas arranged in a one-dimensional linear array configuration on a mobile terminal, with phase shifters to simplify beam scanning and enhance coverage, allowing for comprehensive space coverage by combining the beams of multiple antennas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a single phased array antenna is used in 5G terminal, then the device size is reduced, but the scanning coverage becomes insufficient and signal reception stability deteriorates
Solution Approach 1:
The patent divides the antenna system into multiple independent phased array antennas (at least two) instead of using a single large phased array. Each antenna covers a specific scanning range, and together they provide comprehensive coverage. This segmentation allows the system to maintain compact size while achieving wide scanning coverage and stable signal reception through multiple antennas working in coordination.
2Power
If an N*N dot matrix phased array is used in 5G terminal, then the beam forming capability is improved, but the space occupation and deployment difficulty increase
Solution Approach 1:
Instead of deploying a large N*N dot matrix phased array as a single unit, the patent segments it into multiple smaller phased array antennas. Each smaller antenna maintains beam forming capability through its own phase shifters and antenna elements, while the reduced size of each unit makes deployment significantly easier and more practical for mobile terminals.
3Power
If an N*N dot matrix phased array is used in 5G terminal, then the beam forming capability is improved, but the scanning angle setting complexity increases
Solution Approach 1:
The patent divides the scanning angle control into multiple simpler subsystems, with each phased array antenna handling a specific scanning range. This segmentation reduces the complexity of scanning angle settings for each individual antenna, as they operate within narrower, more manageable angular ranges while collectively providing comprehensive coverage through coordinated operation.
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 configuration reduces the complexity of scanning and increases the stability of signal reception by providing strong beam radiation in various directions, overcoming the limitations of single phased array antennas and enhancing overall radiation efficiency.
Implementation Method 1
By means of a phase shifter, the phases of various array elements are distributed according to a certain rule, thereby forming a high-gain beam
Implementation Method 2
a base station side has multiple antennas and may automatically adjust phases of transmitted signals of the antennas to form a superposition of electromagnetic waves at a terminal receiving point, thereby improving the strength of received signals
Implementation Method 3
Rich bandwidth resources of a millimeter-wave frequency band provide guarantees for high-speed transmission rates
Data Source
AI summary
The present disclosure discloses an antenna system and a mobile terminal. The antenna system is applied to the mobile terminal and includes a first feeding point, a first millimeter-wave array antenna electrically connected to the first feeding point, a second feeding point, a second millimeter-wave array antenna electrically connected to the second feeding point, a third feeding point, a third millimeter-wave array antenna electrically connected to the third feeding point, a fourth feeding point and a fourth millimeter-wave array antenna electrically connected to the fourth feeding point, which are all arranged on a circuit board. Beams of the first millimeter-wave array antenna cover a space of Z>0; beams of the second millimeter-wave array antenna cover a space of Z<0; beams of the third millimeter-wave array antenna cover a space of X>0; and beams of the fourth millimeter-wave array antenna cover a space of X<0.