Broadband antenna

摘要

A broadband antenna includes a radiation part ( 10 ) for radiating and receiving electromagnetic signals, a feed portion ( 30 ) for feeding the electromagnetic signals, and a pair of ground planes ( 40 ) respectively disposed on sides of the feed portion. The radiation part comprises an annular first radiation segment ( 12 ) and an annular second radiation segment ( 14 ) being inscribed within a space defined by the annular shape of the first radiation segment. The feed portion is electrically connected to the radiation part.