A Realization Method of Non-Iterative Nulling Antenna Array

Abstract

The invention discloses a design method for non-iterative array antenna zero adjustment, which is applied to meet the specific radiation requirements of the array antenna. When the performance indicators of the radiation direction and the nulling direction of the array antenna are given, the maximum power transfer efficiency method is used to obtain the excitation distribution when the array antenna radiates in the radiation direction and the nulling direction when the maximum radiation efficiency is achieved, and then each The electric field of the excitation distribution in the given null direction is constructed, and the complex coefficient equation is constructed to obtain the excitation distribution with zero electric field in the null direction. The method proposed by the present invention is not limited to the form and arrangement of the antenna, and is a non-iterative algorithm with fast calculation speed and low consumption of calculation resources.

Description

technical field [0001] The present invention relates to an antenna array, in particular to a method for realizing a non-iterative nulling antenna array. Background technique [0002] With the rapid development of satellite navigation, communications and other fields, anti-jamming capability has become an important performance indicator of wireless communication systems, which requires phased array antennas to shield or resist interference in the direction of interference. At present, the technology of nulling antennas can effectively suppress Directional electromagnetic interference has become an important means of communication anti-interference. In the existing nulling antenna technology, the method of nulling the array antenna based on the excitation distribution corresponding to the minimum eigenvalue of the maximum power transmission efficiency method can only control the nulling direction of the array, but cannot control the radiation direction, which lacks practicabil...

AI Technical Summary

Problems solved by technology

In the existing zeroing antenna technology, the method of using the excitation distribution corresponding to the minimum eigenvalue of the maximum power transfer efficiency method to zero the array antenna can only control the array nulling direction, and cannot control the radiation direction, which is lack of practicability; The array antenna zeroing method represented by the array factor combined with the iterative algorithm is more effective, but it usually does not consider the coupling between the array elements, and with the increase of the complexity of the array elements and the array structure, the calculation amount will increase exponentially , or directly fail to converge leading to failure

Images