【作者】 于丁； 杨林； 傅德民； 刘其中；

【Author】 YU Ding, YANG Lin, FU De-min, LIU Qi-zhong (National Laboratory of Antennas and Microwave Technology, Xidian University, Xi’an 710071, China)

【机构】 西安电子科技大学天线与微波技术国家重点实验室；

【摘要】 本文介绍了余弦窗函数,并将其应用到平面波综合技术中。以无限长电流丝作为扫描探头,对平面波综合技术进行了计算机模拟。计算结果表明,在平面波综合技术中,通过利用余弦窗函数对阵列单元的电流分布进行加权处理能够有效地改善在待测体区域综合出的准平面波的幅相均匀度,从而证实了基于余弦窗函数的加权方法应用于平面波综合技术的正确性和有效性。更多还原

【Abstract】 The cosine window function is introduced and applied in the plane wave synthesis technique. With the infinite long current filament as the scanning probe, the plane wave synthesis technique is computer simulated. The calculation results show that in the plane wave synthesis technique, the uniform degree of the amplitude and phase of the quasi-plane wave synthesized in the body under test zone can be improved greatly by weighting process of the current distribution of the array elements with the cosine window function, which proves the correctness and validity of the weighting method by means of the cosine window function in the plane wave synthesis technique.更多还原