Wideband monopole antenna and electronic device

摘要

The present invention discloses an electronic device including a signal transmission module and a wideband monopole antenna (1). A feeding portion (10) of the antenna (1) is coupled to the signal transmission module through a feeding cable (24). A first radiating portion (12) and a second radiating portion (14) of the antenna (1) are respectively coupled to the feeding portion (10), wherein the feeding portion (10), the first radiating portion (12), and a signal ground portion (20) define a first slot (slot A1), while the second radiating portion (14) and the signal ground portion (20) define a second slot (slot A2). In the first slot (slot A1), the spacing between the first radiating portion (12) and the signal ground portion (20) is not less than a first distance (d1). In the second slot (slot A2), the spacing between the second radiating portion (14) and the signal ground portion (20) is not less than a second distance (d2). Thus, the voltage standing wave ratio of the antenna within a frequency band is less than a threshold.