Mobile device supporting wideband operation
A mobile device supporting wideband operations includes a metal mechanism element, a feeding radiation element, a shorting radiation element, a main radiation element, a connection radiation element, and an auxiliary radiation element. The metal mechanism element provides a ground voltage. The feeding radiation element has a feeding point. The feeding radiation element is coupled through the shorting radiation element to the metal mechanism element. The main radiation element is coupled to the feeding radiation element. The connection radiation element is coupled to the main radiation element. The auxiliary radiation element is coupled to the connection radiation element. An antenna structure is formed by the feeding radiation element, the shorting radiation element, the main radiation element, the connection radiation element, and the auxiliary radiation element. The width of the main radiation element is greater than that of the auxiliary radiation element.
1 . A mobile device supporting wideband operations, comprising:
a metal mechanism element, providing a ground voltage;
a feeding radiation element, having a feeding point;
a shorting radiation element, wherein the feeding radiation element is coupled through the shorting radiation element to the metal mechanism element;
a main radiation element, coupled to the feeding radiation element;
a connection radiation element, coupled to the main radiation element; and
an auxiliary radiation element, coupled to the connection radiation element;
wherein an antenna structure is formed by the feeding radiation element, the shorting radiation element, the main radiation element, the connection radiation element, and the auxiliary radiation element;
wherein a width of the main radiation element is greater than that of the auxiliary radiation element;
wherein the main radiation element and the auxiliary radiation element are respectively disposed on two parallel planes.
2 . The mobile device as claimed in claim 1 , wherein the metal mechanism element is a host housing.
3 . The mobile device as claimed in claim 1 , wherein the antenna structure is disposed at an edge of the metal mechanism element.
4 . The mobile device as claimed in claim 1 , wherein the feeding radiation element and the main radiation element are respectively disposed on two orthogonal planes.
5 . The mobile device as claimed in claim 1 , wherein the connection radiation element is perpendicular to the main radiation element and the auxiliary radiation element.
6 . The mobile device as claimed in claim 1 , wherein the antenna structure covers a first frequency band and a second frequency band.
7 . The mobile device as claimed in claim 6 , wherein the first frequency band is from 2400 MHz to 2500 MHz.
8 . The mobile device as claimed in claim 6 , wherein the second frequency band is from 5150 MHz to 5850 MHz.
9 . The mobile device as claimed in claim 6 , wherein a total length of the main radiation element, the connection radiation element, and the auxiliary radiation element is substantially equal to 0.5 wavelength of the first frequency band.
10 . The mobile device as claimed in claim 6 , wherein a length of the main radiation element is substantially equal to 0.375 wavelength of the first frequency band.
11 . The mobile device as claimed in claim 6 , wherein a length of the auxiliary radiation element is shorter than or equal to 0.25 wavelength of the second frequency band.
12 . The mobile device as claimed in claim 1 , wherein a distance between the main radiation element and the metal mechanism element is shorter than or equal to 4.5 mm.
13 . The mobile device as claimed in claim 1 , wherein a length of the connection radiation element is from 1 mm to 3 mm.
14 . The mobile device as claimed in claim 1 , wherein the width of the main radiation element is from 9 mm to 11 mm.