【摘要】：波紋喇叭天線是一種結(jié)構(gòu)緊湊、具有良好輻射性能的饋源天線,特別是軸向槽波紋喇叭天線可以在寬頻段內(nèi)實(shí)現(xiàn)極低的交叉極化,對(duì)擴(kuò)展工作頻段、實(shí)現(xiàn)極化復(fù)用有重要的價(jià)值。文章對(duì)軸向槽波紋喇叭天線的設(shè)計(jì)方法進(jìn)行了研究,利用模式匹配法和全波算法軟件設(shè)計(jì)了一種Ka頻段超低交叉極化寬頻帶軸向槽波紋喇叭天線。實(shí)測(cè)數(shù)據(jù)表明,該喇叭天線工作頻段可覆蓋整個(gè)Ka頻段(26.5~40 GHz),在頻段內(nèi)回波損耗小于-20 d B、交叉極化小于-45 d B,同時(shí)天線具備良好的方向圖對(duì)稱(chēng)性和相位中心穩(wěn)定性,在衛(wèi)星通信領(lǐng)域具有廣闊的應(yīng)用前景。
[Abstract]:The wavy horn antenna is a kind of feed antenna with compact structure and good radiation performance, especially the axial slot bellows antenna can achieve very low cross-polarization in the wide frequency band, and to extend the working frequency band, It is of great value to realize polarization reuse. In this paper, the design method of axial slot corrugated horn antenna is studied, and a Ka band ultra-low cross polarization broadband axial slot horn antenna is designed by using mode matching method and full wave algorithm software. The measured data show that the working frequency band of the horn antenna can cover the whole Ka band (26.5 鈮，

本文編號(hào)：2476594