Antenna Performance Evaluation via Reference Angle Fitting
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Solution Overview
Problem
Traditional antenna performance evaluation methods require extensive time to measure throughput values at various angles, necessitating the development of a more efficient method to assess communication quality based on multi-input multi-output (MIMO) average radiated signal-to-interference ratio (SIR) sensitivity (MARSS).
Innovation Solution
The method involves measuring throughput values at a single angle, generating a fitting curve, and using this curve to calculate differences at other angles, updating a transition fitting curve until the difference is within a predefined inaccuracy range, thereby reducing the need for extensive data collection and simplifying calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If throughput values are measured at every test angle to ensure complete evaluation data, then measurement precision is improved, but measurement time increases significantly
Solution Approach 1:
The patent applies preliminary action by measuring throughput values at a reference angle first to establish a baseline fitting curve. This preliminary measurement at one angle provides the foundation for subsequently calculating throughput values at other angles through transformation relationships, avoiding the need to physically measure every angle and thus significantly reducing measurement time while maintaining evaluation accuracy
Solution Approach 2:
The patent uses copying by creating virtual throughput value data for unmeasured angles through mathematical transformation of the reference angle data. Instead of physically measuring every angle, the system copies and transforms the reference measurement results to generate equivalent evaluation data for other angles, achieving complete angular coverage with minimal actual measurements
2Reliability
If complete throughput value curves are measured at all angles to ensure accurate evaluation, then reliability is improved, but device complexity increases due to extensive data collection requirements
Solution Approach 1:
The patent extracts the essential evaluation information from complete multi-angle measurements by identifying and utilizing the transformation relationship between angles. Instead of collecting and processing complete curves at all angles, the system extracts the reference angle data and uses mathematical relationships to derive equivalent information for other angles, simplifying the data collection system while maintaining evaluation reliability
Solution Approach 2:
The patent applies universality by making the reference angle measurement serve multiple purposes. The single reference measurement not only provides direct evaluation data for that angle but also serves as the basis for calculating throughput values at all other angles through transformation relationships, making one measurement perform the function of multiple angle measurements
Data Source
AI summary
An antenna performance evaluation method is disclosed. The method includes the following steps: measuring plurality of throughput values of the to-be-tested antenna at the first angle under different average radiation signal-to-interference ratio (SIR). The average radiation SIR and throughput values are fitted to output the first fitted curve. The second throughput value is measured at a certain average radiation SIR of the second angle of the to-be-tested antenna. Calculating a difference value between the first throughput value and the second throughput value corresponding to the same average radiation SIR, and the difference value and the first fitting curve constitute the transition second fitting curve. Selecting different average radiation SIR is repeatedly, and measure the corresponding second throughput value, and the corresponding difference value is calculated to update the transition second fitting curve. When the difference value is lower than the preset error range, the final second fitting curve is outputted.