Circular Array Antenna Beamforming via Operating Antenna Count
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Solution Overview
Problem
Current wireless communication systems using array antennas face challenges in effectively controlling beam patterns and beam widths, particularly with circular array antennas, due to interference and antenna coupling, which affects communication stability and capacity.
Innovation Solution
A method for determining the number of operating antennas in a circular array antenna by using the reciprocal of the square of the beam width, combined with precoding techniques to control beam patterns and minimize antenna coupling, allowing for efficient beamforming and beam width adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of operating antennas is increased to improve beamforming performance, then communication capacity is improved, but device complexity increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the number of operating antennas based on beam width requirements. The system determines the number of operating antennas using the reciprocal of the square of the vertical beam width, allowing flexible adaptation between using more antennas for higher capacity or fewer antennas for simpler operation, thus resolving the contradiction between communication capacity and device complexity.
2Measurement precision
If beam width is decreased to improve directional precision, then measurement precision is improved, but the number of operating antennas must be increased
Solution Approach 1:
The patent establishes a mathematical relationship between beam width and the number of operating antennas, where the number of operating antennas is determined by the reciprocal of the square of the vertical beam width. This allows the system to achieve precise beam width control by adjusting the number of antennas according to a defined formula, improving measurement precision while providing a systematic approach to managing the required number of antennas.
3Reliability
If all antennas in the circular array are used for beamforming, then communication stability is improved, but antenna coupling effects increase
Solution Approach 1:
The patent applies the extraction principle by selectively determining the number of operating antennas rather than using all antennas in the circular array. By calculating the optimal number of operating antennas based on beam width requirements, the system extracts only the necessary subset of antennas needed for effective beamforming, thereby reducing harmful antenna coupling effects while maintaining communication stability through sufficient antenna utilization.
Data Source
AI summary
The present invention relates to a method for performing beamforming by using circular array antenna comprising a plurality of antennas, and a device therefor, and to a method and a device therefor, the method comprising the steps of: determining the number of operating antennas for a specific beam pattern; selecting at least one antenna among the plurality of antennas by using the determined number of operating antennas; and transmitting a signal through the selected at least one antenna, wherein the step of determining the number of operating antennas determines the number of operating antennas by using the inverse number of the square of the vertical beam width of the specific beam pattern.