Antenna, broadband antenna, and electronic device

A broadband antenna for interfacing an electronic device with a plurality of radio access technologies is provided. The antenna includes an excitation element and a parasitic element. The excitation element includes a feed line with a first distal end and a second distal end with first and second arms extending from the second distal end, wherein one of the first or second arms is shorter than the other such that the excitation element forms an asymmetrical T shape. The length of the first and second arms determines at least two modes of operation of the antenna. The parasitic element wraps around the asymmetrical T shape and includes a length configured to provide another mode of operation of the antenna. 本发明提供了种天线、宽带天线以及电子装置，所述宽带天线用以界接电子装置于多个无线存取技术。所述天线包括激发元件以及寄生元件。激发元件具有馈入线，馈入线具有第末端以及第二末端，而第分支与第二分支由第二末端延伸。第分支与第二分支其中之较短，因此形成非对称T形。第分支与第二分支决定天线至少两操作模式。寄生元件绕着非对称T形并具有长度以提供天线另操作模式。本发明实施例的宽带天线能够操作于多个无线存取技术的相关频率。