Slot-Controlled Antenna Pattern Calculation for Beam Deflection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional beam pointing adjustable antennas face challenges in achieving precise beam pointing and deflection due to dependency on simulation software and lack of guidance for turning on or off each slot unit, leading to inefficient design and optimization processes.
Innovation Solution
A method and device for calculating the directional pattern of beam pointing adjustable antennas that involves obtaining transmission matrices for single-slot and seamless waveguides, determining slot unit arrangements and control codes, and cascading these to generate a composite directional pattern, allowing for weighted calculation and global optimization of key parameters for fast beam switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional design method with regular slots is used, then design process is simple and intuitive, but beam pointing deflection cannot be achieved
Solution Approach 1:
The waveguide is divided into multiple independent slot units, each capable of being individually controlled. This segmentation allows selective activation of slots to achieve beam pointing deflection while maintaining a regular structural design that is easy to manufacture.
Solution Approach 2:
The antenna system transitions from a static regular slot configuration to a dynamic system where individual slot units can be selectively turned on or off. This dynamic control enables beam pointing deflection while the underlying regular structure remains simple for manufacturing.
2Adaptability or versatility
If irregular slots design method is used, then beam pointing deflection can be achieved, but dependency on simulation software is large and optimization time is long
Solution Approach 1:
Instead of changing the physical geometry of slots to irregular shapes, the invention changes the operational parameters by selectively activating or deactivating individual slot units in regular configurations. This approach achieves beam pointing deflection through parameter control rather than geometric modification, reducing dependency on time-consuming simulation software.
Solution Approach 2:
The invention uses multiple identical (copied) slot unit structures in regular arrangements rather than unique irregular slot designs. This copying approach simplifies the design process and reduces optimization time while still achieving beam pointing deflection through selective activation of the copied units.
3Ease of operation
If phased array principle is applied, then beam control through phase modulation is achieved, but guidance for turning on or off each slot unit is lacking
Solution Approach 1:
The invention introduces transmission matrix theory as an intermediary tool that provides the missing link between phased array principles and slot unit control. The transmission matrices quantify the relationship between slot unit configurations and beam patterns, offering systematic guidance for turning slots on or off to achieve desired beam pointing and deflection.
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 approach enables the evaluation of electrical performance indicators and provides guidance for beam pointing and deflection, significantly reducing optimization time and focusing on structural form optimization, thereby achieving fast beam shaping and switching without relying on simulation software.
Implementation Method 1
a waveguide-based beam pointing adjustable antenna (leaky-wave antenna) has advantages of low costs, long life, low profile
Data Source
AI summary
Provided are a directional pattern calculation method and apparatus for a beam pointing adjustable antenna. In the design method, key control factors are quantized, for example, a arrangement and combination modes for a plurality of slot units and wave-controlled codes for conducting and cut-off states of a slot unit, and different combinations of slot units and a far-field directional pattern of a controlled array antenna are evaluated, so that electrical performance indicators of the array antenna can be further evaluated. Weighting calculation is implemented for a directional pattern of a beam pointing adjustable antenna. Key information such as a form of a slot unit and a arrangement and combination modes for slot units can be globally optimized.