本論文設計一個可以應用在 24-GHz 單脈衝前視防撞警示雷達之透鏡天線系 統，包含接收與發射天線，操作頻段為 24.025GHZ~24.225GHz。此天線系統使用 以貼片陣列天線為饋入的號角天線為架構，並且再接收天線端以光學方式設計透 鏡，搭配成為透鏡天線，並且驗證在僅 1~3 個波長的尺寸下依光學方式設計之透 鏡仍有相當的作用，且達成小體積的目的。而使用號角天線為架構，具有集中
模場型波束、壓抑
模輻射場形的旁波束之效果，同時能作為透鏡天線的支撐，另外，號角天線的金屬牆還能夠有效的增加接收與發送天線之間的隔離度。
最後，我們將所設計的天線與許少華同學設計的前端電路做整合，實際測量 此雷達系統在不同距離與不同角度，對於金屬圓桶與小型車輛等目標物的回波 量，與所設計的天線場形對應比較與分析。並預定將此雷達系統作為 30 公尺前 視防撞之應用，利用單脈衝振幅比較來分辨角度之功能，將車道分為本車道與左 右車道等三個區域，並驗證應用的可行性。
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