本論文之研究主題為「集成中長距離之平肩輻射場型毫米波天線陣列之研究」。
有別於傳統的車用雷達分別由一組長距離雷達場景及中距離雷達場景之間來回切換操作模式，本論文提出一種具有平肩輻射場型之特殊陣列天線以同時滿足中長距離雷達應用的發射天線，除了能有效地節省整體天線的面積外，同時也能夠降低後台晶片控制中遠距離場景切換的負擔。
　　論文主體將分為兩個主要部分，第一部分將詳細介紹如何透過天線陣列之原理以進行優化演算法，本文採用的「甲蟲天線演算法」具有收斂速度快速、實現容易及透過合理的步長避免陷入局部最優解等優勢，為適當的簡化優化流程，將會解說如何定義包含功率振福、天線間距、相位等各項所需變數，並且根據陣列理論得出目標輻射場型之公式。為了達成此一目標場型，需先設計一１ｘ１６單元陣列後進行全波模擬得到其輻射場型，再帶入到陣列因數當中求得整體陣列場型以進行優化。
　　第二部分為第一部分之接續，由優化後所得到的各項變數以設計饋入天線之前端功率分配網路，由於工作頻率有別於以往24GHz的車用天線，提升到毫米波頻段時，微帶技術之饋電網絡將產生嚴重的輻射損耗，所以本文採用一種已被廣泛研究且具有低製造成本、低輻射損耗及高集成密度設計等優勢的基板集成波導(SIW)技術，最終與陣列天線整合實現應用於77GHz之中長距離天線陣列。
　　本論文將詳細闡述此一研究主題，包含研究動機、單元陣列設計、演算法優化流程及功率分配網絡設計，並將模擬與實際量測結果做詳細對比以證實其差異或一致性。

The research topic of this dissertation is "A Study of Flat-Shoulder Radiation Pattern for Integrated Long-/Medium-Range Millimeter Wave Antenna Array". Different from the traditional vehicle radar, which switches back and forth between a set of long-range radar scenarios and medium-range radar scenarios, this paper proposes a special array antenna with a flat-shoulder radiation pattern to meet the requirements of medium- and long-range radar applications at the same time. In addition to effectively saving the area of the overall antenna, the transmitting antenna can also reduce the burden of long-distance scene switching in background chip control. The main body of the paper will be divided into two main parts. The first part will introduce in detail how to optimize the algorithm through the principle of the antenna array. The "Beetle Antenna Algorithm" used in this paper has the advantages of fast convergence speed, easy implementation and avoidance through reasonable step size. In order to properly simplify the optimization process, it will explain how to define the required variables including power vibration, antenna spacing, phase, etc., and obtain the formula of the target radiation pattern according to the array theory. In order to achieve this target pattern, it is necessary to design a 1x16 element array first, then perform full-wave simulation to obtain its radiation pattern, and then bring it into the array factor to obtain the overall array pattern for optimization. The second part is the continuation of the first part. The variables obtained after optimization are used to design the front-end power distribution network of the feeding antenna. Since the operating frequency is different from the previous 24GHz vehicle antenna, when it is upgraded to the millimeter wave frequency band, The feeding network of microstrip technology will produce serious radiation loss, so this paper adopts a substrate-integrated waveguide (SIW) technology that has been widely studied and has the advantages of low manufacturing cost, low radiation loss and high integration density design. Antenna integration realizes application in 77GHz medium and long distance antenna array. This paper will elaborate on this research topic, including research motivation, cell array design, algorithm optimization process and power distribution network design, and will compare the simulation and actual measurement results in detail to confirm their differences or consistency.

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