頁籤選單縮合
題名 | 球形諧振腔上螺旋狹縫之輻射場形 |
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作者 | 柯盟卿; | 書刊名 | 明志工專學報 |
卷期 | 27 1995.05[民84.05] |
頁次 | 頁87-96 |
分類號 | 448.5 |
關鍵詞 | 螺旋狹縫匝數; The number of turn of spiral slot; |
語文 | 中文(Chinese) |
中文摘要 | 在本文,筆者導出以同軸探討激勵於底部,螺旋狹縫分布於諧振腔上半球面上,所產生的輻射場及輻射場形公式。據此發輻射主葉皆在極軸方向。同時螺旋狹縫匝數之增加會增強輻射強度及減少主葉在方位角方向之變化。而輻射強度準位的提升,主要還是由訊號頻率接近共振頻率的程度而定。至於主葉的寬度則隨訊號頻率增加而變窄且出現副葉。 |
英文摘要 | In this paper, the radiation field as well as power pattern at the spiral slot on the super spherical cavity excited at the bottom with coaxial probe are derived. It has been shown that the main lobe direct to the polar axis and the larger the number of turn of spiral slot the higher the radiation intensity and the less the circumferential variation become. But it is mostly preferable to promote radiation intensity by approaching signal frequency to the resonance of cavity. It also appears the higher the frequency the narrower the main lobe together with the emergence of the side lobes. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。