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设计了一种新颖的工作在VHF频段内的帽状贴片天线。通过表面开缝、短路针加载和侧面加载的方法，使得天线的横向、纵向尺寸均大幅缩小。经过仿真优化，天线的高度为6.5cm（约0.052λ），横向尺寸为20cm×20cm（约0.16λ×0.16λ）。同时，该天线还具有类似于理想偶极子的全向辐射特性，适合于作为个人局域网、车载、机载等通信天线使用。“,”A novel cap-shaped patch antenna worked in VHF band is presented in this paper. By loading slots, shorting pins and side patch, both the antenna’s horizontal and vertical dimensions are greatly reduced. With the simulation, the height of antenna is optimized to 6.5cm (about 0.052λ), and the transverse dimensions are 20cm×20cm (about 0.16λ×0.16λ). Furthermore, the antenna has the same omnidirectional radiation pattern as a vertical dipole antenna. It is suitable for the applications in individual LAN, car communications, airborne communications, etc.