Beam-Pointing Adjustable Antenna Pattern Calculation for Fast Beam Switching
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Solution Overview
Problem
Existing beam pointing adjustable antennas face challenges in achieving precise beam deflection and direction control due to high dependency on simulation software and lack of guidance for turning-on or cutting-off each slot unit, making them inefficient for engineering applications.
Innovation Solution
A method and device for calculating the directional pattern of beam pointing adjustable antennas that utilize direct measurement of scattering parameters and transmission matrices to optimize slot unit arrangements and combinations, enabling fast beam switching and shaping without relying on simulation software.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If simulation software is used for designing beam pointing adjustable antenna with irregular slots, then design flexibility and beam control capability are improved, but design time and computational resources are significantly increased
Solution Approach 1:
The antenna array is divided into multiple independent slot units, each with its own transmission matrix. This segmentation allows the overall directional pattern to be calculated by cascading individual unit matrices, avoiding the need for full-wave simulation of the entire structure and significantly reducing computational time while maintaining design flexibility.
Solution Approach 2:
The transmission matrices for individual slot units are pre-calculated and stored in a database before the actual design process. This preliminary action eliminates the need for repeated simulations during optimization, allowing rapid evaluation of different slot configurations and beam pointing scenarios.
2Ease of manufacture
If conventional design methods with regular slots are used, then manufacturing and design simplicity are improved, but beam pointing deflection capability is lost
Solution Approach 1:
While maintaining an overall regular slot arrangement for manufacturing simplicity, the invention introduces local variations in slot characteristics (size, orientation, transmission properties) to achieve beam pointing deflection. This allows the antenna to combine manufacturing ease with adaptive beam control capability.
3Extent of automation
If phased array principles are applied to beam pointing adjustable antenna, then beam control mechanism is established, but guidance for turning-on or cutting-off each slot unit is insufficient
Solution Approach 1:
The invention provides a systematic method that calculates the required on/off states of individual slot units based on desired beam pointing angles. By using the pre-stored transmission matrices and directional patterns, the system automatically determines the optimal configuration of active and inactive slots, providing clear operational guidance for beam control.
Data Source
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AI summary
Provided are a method and device for calculating directional pattern of the beam pointing adjustable antenna. In the method, a scattering parameter of a single slot unit is directly measured, and therefore, operability is strong, and the directional pattern of the beam pointing adjustable antenna is calculated without depending on simulation software. In addition, weighted calculation of the directional pattern of the beam pointing adjustable antenna is realized. Key information such as a form of the slot unit and an arrangement and combination mode of the slot units can be globally optimized. Optimization on selection, arrangement, combination, spacing, and the like of slot units is greatly saved during antenna design, so as to focus on design of the structural form of the slot unit. In addition, wave control codes for conducting and off states corresponding to each slot unit may be further calculated according to a beam directivity deflection requirement, to provide guidance for beam directivity control and implement fast beam forming and switching