Antenna device having dipole antenna and loop shaped antenna

An antenna device includes a first dipole antenna, a second loop shaped antenna, a first feed line and a second feed line. The first dipole antenna operates at a first frequency band. The first dipoleantenna includes a first portion and a second portion. The second loop shaped antenna operates at a second frequency band different from the first frequency band. A first terminal of the second loopshaped antennal is coupled to a second terminal of the first portion of the first dipole antenna. A second terminal of the second loop shaped antenna is coupled to a first terminal of the second portion of the first dipole antenna. A first terminal of the first feed line is coupled to the second terminal of the first portion of the first dipole antenna. A first terminal of the second feed line iscoupled to the first terminal of the second portion of the first dipole antenna. 本发明揭示一种天线装置，包含第一偶极天线、第二环形天线、第一馈电线与第二馈电线。该第一偶极天线工作在第一频带。该第一偶极天线包含第一部分与第二部分。该第二环形天线工作在不同于该第一频带的第二频带。该第二环形天线的第一终端耦接至该第一偶极天线的该第一部分的第二终端。该第二环形天线的第二终端耦接