臺灣博碩士論文加值系統

本論文設計主軸為應用於膠囊內視鏡之小型天線設計，設計頻段應用在 ( 433-434MHz ) 工業科學醫療（ISM）頻段。第一款採用彎折式偶極天線，透過不等長雙臂偶極天線設計使場型輻射能量一邊較大，並加入L型寄生帶線造成頻段偏移達到更好的阻抗匹配，第二款天線延續使用偶極天線激發，為了能在更小的尺寸達到良好的阻抗匹配，所以利用蜿蜒式的結構進行設計，且在輻射場型上有良好的全向性表現。此兩款天線皆應用於在工業科學醫療頻段，兩款天線皆可服貼於膠囊內視鏡外壁，並減少內部使用空間也使得膠囊整體尺寸能夠縮小，且本天線製作容易具有輕薄、成本低等優點。

In this thesis, the design of compact antennas is proposed for wireless capsule endoscopy at (433-434-MHz) Industrial Scientific Medical (ISM) Band, The first one uses a bent dipole antenna. After feeding, the dipole antenna is bent twice by 90 degrees, and the L-type parasitic strip line is added to cause the band offset to achieve better impedance matching, The second design continues to use dipole excitation, in order to achieve impedance matching in a smaller size, the design is used a meander-type structure and the radiation is an omnidirectional performance. Both antennas are used in medical equipment and industrial science medical radios. Both antennas can be conformed to the outer wall of the capsule endoscope, in this way, the internal use space can be reduced also makes the whole size smaller and simple structure, low cost, and low profile.

摘要 i
ABSTRACT ii
誌謝 iii
目 錄 iv
表 目 錄 v
圖 目 錄 vi
第一章 序論 1
1.1 研究背景 1
1.2 研究目的 1
1.3 文獻導覽 2
1.4 研究內容 2
第二章 攝入式之彎折型偶極天線設計 3
2.1 前言 3
2.2 天線設計與實驗結果 3
2.3 結構分析與參數探討 10
2.4 結論 18
第三章 攝入式之蜿蜒型偶極天線設計 19
3.1 前言 19
3.2 天線設計與實驗結果 19
3.3 結構分析與參數探討 29
3.4 結論 34
第四章 結論與未來發展 36
4.1 量測 36
4.2 總結 39
參考文獻 41

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