提出一种新型的超宽带全向电小天线,应用折叠技术改变了地板的形状,极大地减小了天线的物理尺寸,方便了实际工程中的安装和携带.设计的天线工作频段为2.55～17 GHz,电压驻波比小于2,在频段7～17 GHz增益5 dBi左右,低频段增益有所下降,但仍大于1 dBi.设计过程中,根据频率无关天线(单锥天线)的物理尺寸,通过仿真软件CST建立模型,最后得到的尺寸为37.8 mm×60 mm.%A novel miniature UWB antenna with omni-directional H-plane radiation pattern is put forward. It adopts the puckering technology to change the floor shape and reduce its physical size greatly. It is easy to take along and install. The designed antenna works in 2. 55-17 GHz and its voltage standing wave ratio is less than 2 (VSWR<2). It has about 5 dBi gain in 7~17 GHz. The gain in the low band is still greater than ldBi. The model of the antenna was established according to the physical size of the non-frequency antenna (single cone antenna) and the simulation software CST. The antenna size of 37. 8 mm×60 mm was obtained eventually.
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