明天周報 的英文怎麼說

中文拼音 [míngtiānzhōubào]
明天周報 英文
zitrek
  • : Ⅰ形容詞1 (明亮) bright; brilliant; light 2 (明白;清楚) clear; distinct 3 (公開;顯露在外;不隱...
  • : Ⅰ名詞1 (圈子; 周圍) circumference; periphery; circuit 2 (星期) week 3 [電學] (周波的簡稱) c...
  • : Ⅰ動詞1 (告知; 報告) report; declare; announce 2 (回答) reply; respond; reciprocate 3 (答謝)...
  • 明天 : 1. (明日) tomorrow2. (不遠的將來) the near future
  1. A patch antenna with air holes in the substrate has been designed. the finite - difference time - domain ( fdtd ) method together with the perfectly matched layer ( pml ) boundary treatment has been used to study the performance of the antenna. it is shown that the surface waves are significiently suppressed, the frequency bandwidth is improved, the sidelobe levels are reduced and consequently the gain in the forward direction is improved by 14 db ( about 4 db higher than the value reported previously )

    設計了一種基底鉆期圓孔結構的電磁(光子)晶體貼片線,用fdtd方法並結合pml吸收邊界條件對該線進行了研究,結果表本文所設計的基底鉆孔型電磁晶體貼片線取得了多方面的性能改善,與普通線相比,基底中的表面波受到很大抑制,線的帶寬增加,遠場方向圖上線的旁瓣和背瓣被顯削弱,向前輻射的增益由原來的12db增加到26db ,增加了14db ,比文獻上道的gonzalo等人的研究結果提高了4db 。
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