Dual-band dipole antenna

摘要

A dual-band antenna ( 1 ) includes a first antenna ( 2 ) and a second antenna ( 3 ). The first antenna includes a first dipole half ( 11 ) and a second dipole half ( 12 ). The first dipole half is disposed above the second dipole half with a space therebetween and the two dipole halves are corresponding to each other in a lengthwise direction. The second antenna includes a coaxial cable ( 4 ) including an inner conductor feeding the first antenna and comprising an exposed extending section ( 40 ) acting as a radiating portion of the second antenna, and a ground patch ( 5 ) electrically connected with the second dipole half.