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題 名 | 球形諧振腔上狹縫陣列之輻射場形 |
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作 者 | 柯盟卿; | 書刊名 | 明志工專學報 |
卷 期 | 26 1994.05[民83.05] |
頁 次 | 頁57-65 |
分類號 | 448.5 |
關鍵詞 | 反相分布數目; Number of opposite phase; |
語 文 | 中文(Chinese) |
中文摘要 | 在本文,筆者導出同軸探針激勵下球形諧振腔上之狹縫陣列所產生的輻射場及輻射場形公式。在此顯示當激勵電源頻率越高則諧振腔内壁電流密度之反相分布數目隨之增多。若是為了提昇功率準位,則可將狹縫安排在同相位處。若是為了形成某些確定方向之有效輻射,則可將狹縫配置於反相位的位置。另一方面當電源頻率等於對諧振腔徑向TM模式之共振時,則輻射功率急速提高。 |
英文摘要 | In this paper, the radiation field components as well as the power pattern at the slot array on a spherical cavity excited at the bottom with coaxial probe are derived. It has been shown that the higher the frequency of the excitation source, the larger the number of opposite phase distribution of current density appear on the inner wall of cavity. It is preferable to locate slots on the wall with same phase for increasing the level of radiation power, to place slots on the wall with opposite phase for being an effective radiation source in certain direction. It also appears that the radiation power level is abruptly raised with the frequency at the resonance of mode TM to the radial of the cavity. |
本系統中英文摘要資訊取自各篇刊載內容。