摘要
随着高功率微波技术的发展,适用于辐射高功率轴对称模的天线备受关注。基于一般圆锥喇叭天线多用于TE11模的辐射,对TM01的辐射存在缺陷,针对高功率、小型化、较高增益以及最大辐射方向在天线轴向的要求,提出一种多扇区介质透镜天线,介质采用扇形台阶的形式加载在喇叭天线口径的前端,可以进行相位补偿,并使得天线的方向性变好。利用HFSS仿真软件分析表明,所设计的Ku波段的透镜天线具有较好的方向性和增益。
The antennas that can directly radiate the azimuthally symmetric mode have been taken into account with the development of high-power microwave （HPM）. Because most of the ordinary conical-horns are used for the radiation of the mode, they exist many defects for the radiation of mode. In order to satisfy the requirement of an antenna that radiates a bore- sight peak （along the longitudinal axis of the source~ with high-gain beam, high-power capability and miniaturization, a dielec- tric lens antenna is proposed. The medium which adopts the form of sectors is loaded on the front-end of the conical-horn an- tenna. The dielectric lens can compensate the phase to impove the directivity of antennas. The analysis with HFSS software shows that the Ku-band dielectric lens antennas have a good directivity and high gain.
出处
《现代电子技术》
2010年第19期5-7,共3页
Modern Electronics Technique
基金
国家自然科学基金资助项目(60671032)
