基于仿生原理的超角分辨天线阵设计

以昆虫的声波超分辨定位原理为基础,提出了对应的电小仿生天线阵系统,增强了电小天线阵的角度分辨能力。在具体设计过程中,运用奇偶模分析方法,推导出在不损失功率的条件下,相位差放大因子与天线阵元的阻抗和互耦之间的约束关系,与此同时提出了可获得更大相位差放大因子的设计方法。以此理论为基础,设计了一个二元电小天线阵,仿真并测试了其角度分辨性能,测试结果与理论分析一致,有力地验证了仿生天线阵理论的正确性与设计方法的有效性。

Design of Super Angular Resolution Antenna Array Based on Biomimetic Principle

Based on the principle of sound super-resolution positioning of insects, a corresponding electric biomimetic antenna array system to enhance the angular resolution of the small antenna array is proposed.In the specific design process, the odd-even mode analysis method is used to derive the constraint relationship between the phase difference enhanced factor and the impedance and mutual coupling of the antenna element without loss of power.At the same time, a method to get larger phase difference enhanced factor is proposed.Based on this, a binary small antenna array is designed, and its angular resolution performance is simulated and tested.It is in good agreement with the theory, which verifies the correctness of the biomimetic antenna array theory and the effectiveness of the design method.