本研究主旨為「高等效全向輻射功率圓極化自振式主動集成天線」，乃利用高功率電晶體與高天線增益達到目的。為了使振盪器能有效激發接地面之輻射，同時又具有高品質因數，本研究採用超穎物質共振器作為激發源，而為達圓極化自振式主動天線設計之通則，吾人引入特徵模分析(Characteristic mode analysis, CMA)設計圓極化天線並選擇最佳饋入點，最後於天線背面放置人造磁導體反射板來提升整體天線增益。
本研究提出兩款高等效全向輻射功率圓極化自振主動集成天線。第一款採用特徵模分析設計一X型圓極化槽孔天線並選擇最佳饋入點，並以超穎物質共振器作為激發源於選擇之饋入點激發之，再於背面放置人造磁導體作為反射板，其等效全向輻射功率可達18.5 dBm，直流-射頻轉換效率為 29 %，xz平面之可用圓極化範圍為-50°~35°，yz平面之可用圓極化範圍為-28°~62°。遵循第一款主動天線設計法則，吾人提出第二款T型圓極化槽孔天線，其等效全向輻射功率可達18.7 dBm，直流-射頻轉換效率為22.1 %，xz平面之可用圓極化範圍為-42°~45°，yz平面之可用圓極化範圍為-30°~53°。

The main purpose of this study is, "High Equivalent Isotropic Radiated Power Circularly Polarized Self-Oscillating Integrated Antenna", which uses high power transistors and high antenna gain to achieve the goal. Metamaterial resonators are used to excite the ground plane effectively so as achieve high quality factor at the same time. In order to achieve the general principles of circularly polarized self-oscillating integrated antenna design, this thesis introduces characteristic model Analysis (CMA) into the circularly polarized antenna design and select the best feeding point. Finally, an artificial magnetic conductor (AMC) is placed on the back of the antenna to increase the overall antenna gain.
There are two versions of high equivalent isotropic radiated power circularly polarized self-oscillating integrated antenna are proposed and demonstrated. The first CP-AIA is proposed based on characteristic mode analysis to design an X-shaped circularly polarized slot antenna and select the best feeding point. Using the metamaterial resonator as the excitation source to excite the selected feeding point, and then place an artificial magnet conductor on the back of antenna, the equivalent isotropic radiated power can reach 18.5 dBm, the DC-RF conversion efficiency is 29%, the effective circular polarization region of the xz plane is -50°~35°, and the yz plane is -28°~62°. Following the first active antenna design rule, the T-shaped circularly polarized slot antenna is proposed, which has an equivalent isotropic radiated power of 18.7 dBm, the DC-RF conversion efficiency of 22.1%, the effective circular polarization region of the xz plane is -42°~45°, and the yz plane is -30°~53°.

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