臺灣博碩士論文加值系統

本文主要設計K頻帶(K band)單支貼片天線與1x2陣列天線，經由實際量測貼片天線在中心頻率為39.4GHz時，反射係數為-35.13dB；而陣列天線在中心頻率為39.4GHz時，反射係數為-41.68dB，均達到-10dB以下標準門檻。波束可調式技術透過40GHz陣列天線結合相位偏移的技術，讓天線主波束角度偏移 -18° 時，最大增益為8.26dB，主波束角度偏移22° 時，最大增益為9.17dB。從實驗結果得知，當陣列天線輸入不同相位參數時，同時結合旁波束的調整，達到K頻帶天線波束偏移之效果。

This paper mainly designs K-band single-chip patch antenna and 1x2 phased array antenna. The actual measurement patch antenna has a reflection coefficient of -35.13dB at a center frequency of 39.4GHz, and the phased array antenna has a center frequency of 39.4GHz. When the reflection coefficient is -41.68dB, both reach the standard threshold of -10dB or less. The beam-tunable technology uses a 40 GHz array antenna combined with phase shifting technology to maximize the gain of 8.26 dB when the main beam angle of the antenna is shifted by -18° and the maximum gain of 9.17 dB when the main beam angle is shifted by 22°. It is known from the experimental results that when the array antenna inputs different phase parameters, combined with the adjustment of the side beam, the effect of the K-band antenna beam tunable is achieved.

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口試委員會審定書
致謝....................iii
中文摘要................ iv
Abstract................v
目錄.....................vi
圖目錄..................ix
表目錄...................xiii
第一章 緒論.............................................1
1.1研究背景與動機.........................................1
1.2天線設計流程...........................................2
1.3 論文概要..............................................3
第二章 理論..............................................4
2.1微帶線結構.............................................4
2.2天線簡介...............................................5
2.3天線參數...............................................8
2.4微帶天線..............................................11
2.5陣列天線..............................................13
2.5.1陣列天線波束形成.....................................13
2.5.2陣列天線的陣列因子...................................14
2.5.3陣列天線的方向性.....................................14
2.6波束可調技術..........................................17
第三章 天線設計..........................................18
3.1微帶天線.............................................18
3.2微帶陣列天線.........................................21
3.3相位陣列天線.........................................23
3.3.1波束斜視..........................................23
第四章 實驗結果與討論...................................26
第五章結論與未來展望....................................36
參考文獻...............................................37

圖目錄
圖1.1天線設計流程圖.....................................2
圖2.1微帶線立體結構圖...................................5
圖2.2微帶線電磁場分布圖.................................5
圖2.3電磁場分布圖......................................6
圖2.4 A1為發射天線;A2為接收天線.........................7
圖2.5無方向型天線輻射場型示意圖.........................7
圖2.6指向性天線輻射場型示意圖...........................8
圖2.7微帶天線空腔模型..................................12
圖2.8微帶天線側視圖....................................12
圖2.9微帶天線俯視圖....................................12
圖2.10陣列天線示意圖...................................13
圖2.11等間距線性陣列...................................14
圖2.12四個天線單元之陣列因子............................16
圖3.1貼片天線示意圖....................................18
圖3.2貼片天線俯視圖....................................19
圖3.3微帶天線的Return Loss模擬量測圖....................20
圖3.4微帶天線模擬量測的場型圖...........................20
圖3.5陣列天線俯視圖....................................21
圖3.6陣列天線的Return Loss模擬量測圖....................22
圖3.7微帶陣列天線模擬量測的增益場型圖....................22
圖3.8 1x2相位陣列天線俯視圖.............................23
圖3.9相位陣列天線的Return Loss模擬量測圖................24
圖3.10相位陣列天線的Return Loss模擬量測圖...............24
圖3.11(左)輸入相位0°、90°..............................25
圖3.11(右)輸入相位0°、-90°.............................25
圖4.1微帶天線實作圖....................................26
圖4.2微帶線實作圖......................................26
圖4.3微帶線的Insertion Loss實際量測圖..................27
圖4.4微帶天線的Return Loss實際量測圖...................27
圖4.5陣列天線實作圖...................................28
圖4.6陣列天線的Return Loss實際量測圖...................28
圖4.7遠場量測圖.......................................29
圖4.8 Port1相位陣列天線場型圖.........................29
圖4.9 Port2相位陣列天線場型圖.........................30
圖4.10光波束可調技術系統測試圖........................31
圖4.11光相位群延遲系統架構圖..........................32
圖4.12光相位群延遲系統模擬架構圖......................33
圖4.13 (a)1558.4039nm光超前60°......................34
圖4.13(b) 1558.4084nm光超前90°......................34
圖4.13(c) 1558.4184nm光超前180°.....................34
圖4.14 (a)1558.3907nm光落後60°......................35
圖4.14 (b)1558.3870nm光落後90°......................35
圖4.14 (c)1558.3775nm光落後180°.....................35

表目錄
表3.1貼片天線尺寸.........................19
表4.1微帶天線的Return Loss量測結果.........27
表4.2陣列天線的Return Loss量測結果.........28

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