Antenna designing method and data card single board of wireless terminal

A wireless terminal antenna designing method, comprising:

• dividing a semi-closed area without other metal wirings on a data card single board of a wireless terminal;
• and
• arranging an antenna wiring and a metal coupling piece in the semi-closed area,
• wherein the antenna wiring and the metal coupling piece are parallel and overlap one another,
• wherein a gap exists between the metal coupling piece and the data card single board,
• wherein the metal coupling piece is coupled with the data card single board via the gap and
• wherein at least one second antenna matching point is disposed within the gap between the metal coupling piece and the data card single board.

A data card single board of a wireless terminal, comprising:

• a semi-closed area located on the data card single board of the wireless terminal and having no other metal wirings in the semi-closed area;
• and
• an antenna wiring and a metal coupling piece arranged in the semi-closed area,
• wherein the antenna wiring the metal coupling overlap one another,
• wherein a gap exists between the metal coupling piece and the data card single board,
• wherein the metal coupling piece is coupled with the data card single board via the gap,
• wherein the semi-closed area is located at one end of the data card single board close to a data communication interface of the wireless terminal,
• wherein the antenna wiring is in a linear distribution, and
• wherein a first antenna matching point is disposed in the gap between the metal coupling piece and the data card single board and is configured to connect one end of the antenna wiring to the data card single board.

A data card single board of a wireless terminal, comprising:

• a semi-closed area located on the data card single board of the wireless terminal and having no other metal wirings in the semi-closed area;
• and
• an antenna wiring and a metal coupling piece arranged in the semi-closed area,
• wherein the antenna wiring and the metal coupling piece are parallel and overlap one another,
• wherein a gap exists between the metal coupling piece and the data card single board,
• wherein the metal coupling piece is coupled with the data card single board via the gap, and
• wherein at least one second antenna matching point is disposed in the gap between the metal coupling piece and the data card single board.