in the second part, some concepts and theoretics that are related to the antennas in the dissertation are introduced, as well as some review about the research background of reconfigurable fractal antennas 第二部分介紹了論文中所要涉及到的一些基本概念和理論,以及可重構(gòu)分形天線的研究概況。
two kinds of reconfigurable planar fractal antennas that could steer in the e plane are designed . some experiments have been finished, and the results accorded with the simulation results well 設(shè)計(jì)出兩種能夠?qū)崿F(xiàn)e面方向圖掃描特性的分形平面天線,并且完成了部分原理性實(shí)驗(yàn),仿真和測(cè)試結(jié)果吻合良好。
this dissertation, connected with nnsfc project, “ compact reconfigurable planar antennas in mobile terminals ”, is focused on the research of pattern-reconfigurable planar fractal antennas 本論文結(jié)合國家自然科學(xué)基金項(xiàng)目??“用于移動(dòng)終端的緊湊型可重構(gòu)平面天線研究”,側(cè)重對(duì)方向圖可重構(gòu)平面分形天線進(jìn)行了研究。
fractal antennas have broad application prospect in military and civil application the application background of ‘ fractal ’ is introduced and then the thesis summarizes the research status and expatiates ‘ fractal ’ and ‘ fractal dimension ’ in detail 本文首先介紹了分形的應(yīng)用背景,然后綜述了國內(nèi)外在該領(lǐng)域的研究現(xiàn)狀。
2 . based on the relationship between the design parameters of quasi-fractal antenna and their corresponding radiation characteristics, a quasi-fractal loaded monopole antenna whose height is 7m was designed by the methods of mom, fit and ga 2、基于準(zhǔn)分形單極子天線幾何結(jié)構(gòu)與輻射特性之間的關(guān)系,利用矩量法、有限積分法和遺傳優(yōu)化算法設(shè)計(jì)出了高為7m的準(zhǔn)分形加載單極子天線。