本研究主旨為「以三維列印實現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立體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，本研究採用零階超穎物質共振器作為激發源。而為達高增益圓極化天線設計，採用三維列印製作立體天線，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。第一款採用四螺旋臂設計圓極化主動天線，並以零階超穎物質共振器作為激發源於，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17.8 dBm，直流-射頻轉換效率為 20 %，xz平面之可用圓極化範圍為-50°~55°，yz平面之可用圓極化範圍為-50°~70°。吾人又提出第二款單螺旋圓極化自振主動集成天線，其等效全向輻射功率可進一步提升至22.5dBm，直流-射頻轉換效率為24.7 %，xz平面之可用圓極化範圍為-59°~57°，yz平面之可用圓極化範圍為-40°~43°。

The main purpose of this thesis is, " A Study of three-dimensional (3D)-printing High Equivalent Isotropic Radiated Power Circularly Polarized Self-Oscillating Integrated Antenna (CPAIA)", which uses high power transistors and 3Dprinting high gain antenna to achieve the goal. Metamaterial zeroth-order resonators are used to excite the ground plane. In order to achieve the goal of circularly-polarized self-oscillating integrated antenna design, this thesis uses 3D-printer to produce three-dimensional antenna with spiral arms. Finally, an artificial magnetic conductor (AMC) is placed on the back of the antenna to increase the overall antenna gain.
Two versions of high equivalent isotropic radiated power (EIRP) circularly polarized self-oscillating integrated antenna are proposed and demonstrated. The first CPAIA is proposed based on quad-helical antenna. By using the metamaterial zeroth-order resonators as the excitation source and placing an artificial magnet conductor on the back side of the antenna, the equivalent isotropic radiated power can reach to 17.8 dBm, while the DC-RF conversion efficiency is 20%. The circular polarization region is -50°~55° in the xz plane, and -50°~70° in the yz plane. Following the design rule, in the second design a two-arm helical circularly polarized antenna is proposed, which has an equivalent isotropic radiated power of 22.5 dBm, the DC-RF conversion efficiency of 24.7%. The circular polarization region is -59°~57° in the xz plane, and -40°~43° in the yz plane.

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