本論文提出三款毫米波雷達的超穎材料天線罩設計，其中前兩款為應用於英飛凌(Infineon)公司的60GHz 1T3R封裝天線(Antenna in Package)雷達模組，第一款為複合型超穎材料天線罩，由星形超穎材料和方形超穎材料組成，可提升雷達模組封裝天線 3dB以上的增益，增大雷達偵測距離，而第二款則由星形超穎材料設計而成，能夠在水平面上增大天線輻射場型主瓣寬度，使雷達的水平面涵蓋範圍更廣。至於第三款乃為線形超穎材料天線罩，應用於德州儀器(TI)公司的60GHz 3T4R雷達模組，可提升佐臻公司既有雷達模組串列式陣列天線2dB以上的增益，增大雷達偵測距離。本論文探討了超穎材料天線罩能夠提升天線增益之原理，其中星形與線形超穎材料在特定尺寸時可以提升天線之增益，當天線輻射的電磁波經過這兩種超穎材料會產生相位延遲，與未經過超穎材料之電磁波的相位差形成類似透鏡的效應，因此天線輻射的電磁波經過超穎材料後其波前可接近平面波，使天線輻射增益提高。本論文於天線與超穎材料天線罩架構進行了模擬與分析，並且實作驗證所設計之天線罩對天線增益與雷達模組偵測效能之影響。

In this thesis, three metamaterial radome designs for millimeter wave radars are proposed. The first two of them are applied for the 60GHz 1T3R antenna package radar module from Infineon Company. One is the composite metamaterial radome, which is composed of the star and square structures. There is a gain enhancement of more than 3dB to increase the detection distance of the radar. The other metamaterial radome is designed by the star structure, which can increase the width of the main lobe of the antenna radiation fields on the horizontal plane, so that the horizontal coverage of the radar can be enhanced. The third metamaterial radome is consisted of the linear metamaterials to be applied to Texas Instruments (TI) 60GHz 3T4R radar module. This radome design may improve the gain of the current series antenna array for the radar module of Jorjin Company more than 2dB to increase the radar detection range. This thesis studies how metamaterial radome can enhance antenna gain, where star and linear structures in specific sizes may have better performance. The radiation of the electromagnetic waves through the metamaterials has an additional phase delay, and cause the phase difference with that without passing through the metamaterial radome to form a lens effect. Therefore, the wavefront of the antenna radiating waves passing through the metamaterials can approach that of the plane wave, so that the radiation gain of the antenna can be improved. In this thesis, the antenna and metamaterial radome structures are simulated and analyzed. The effects of the radome on the antenna gain and detection level of the radar module are further verified by measuring the radar module with the proposed metamaterial radome.

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