【作者】 杨宝平； 熊杰； 兰智高； 徐火希；

【Author】 Yang baoping;xiong jie;Central China Normal University;Huanggang Normal University;

【机构】 华中师范大学； 黄冈师范学院；

【摘要】 偶极子天线结构对于X波段的雷达波在垂直于天线振子方向上具有较大的散射截面。潜艇短波、超短波偶极子天线由于横截面尺寸受到限制,传统的天线罩和吸波材料涂覆等RCS缩减技术难以应用于潜艇短波、超短波天线的雷达波隐身。该文提出一种改变天线表面结构造成回波相位互扰的RCS缩减技术,通过在天线振子表面制造出周期性的可重构数字编码缺陷结构,回波相位相互扰乱雷达波垂直入射时天线表面感应电流的相位分布,使其在来波方向上的散射场不能形成同相叠加,从而降低天线的后向雷达散射截面。更多还原

【Abstract】 The dipole antenna structure has a large scattering cross section perpendicular to the antenna oscillator direction for the X band radar wave.Due to the limited cross section size of submarine shortwave and VHF dipole antennas,traditional RCS reduction techniques such as radome and absorbing material coating are difficult to be applied to the radar stealth of submarine shortwave and VHF antennas.This paper puts forward a kind of changing the antenna surface structure of echo phase entangled RCS reduction technology,through the antenna vibrator produced on the surface of the reconfigurable digital coding defects of periodic structure,the echo phase disturb each other when the radar wave vertical incidence antenna surface phase distribution of the induced current,make it in to polish up scattering field cannot form the in-phase stack,Thus the backward radar cross section of the antenna is reduced.更多还原