MULTI-BAND ANTENNA

摘要

A multi-band antenna includes a conductive cap, a ground plane element, a supporting frame, a first radiating conductive element, a second radiating conductive element, a third radiating conductive element, and a plurality of conductive pieces. The multi-band antenna of the disclosure makes the radiating conductive element contact with the conductive cap physically via the conductive piece. Therefore, although a gap similar to a slot is formed, the resonant mode of the multi-band antenna is not excited via the slot.

主权项

1. A multi-band antenna, comprising:
a conductive cap having a first sub-conductive piece, a second sub-conductive piece and a conductive connecting portion connected between the first sub-conductive piece and the second sub-conductive piece, the first sub-conductive piece being at a distance from the second sub-conductive piece to form a gap at least at one side of the conductive connecting portion; a ground plane element having a signal feed line; a supporting frame, the ground plane element being disposed between the supporting frame and the conductive cap; a first radiating conductive element, a second radiating conductive element and a third radiating conductive element disposed at the supporting frame, wherein the first radiating conductive element is disposed between the second radiating conductive element and the third radiating conductive element; and a plurality of conductive pieces, wherein the first radiating conductive element, the second radiating conductive element and the third radiating conductive element have electrical contacts connected with the conductive cap via one of the conductive pieces, respectively, and another electrical contact of the first radiating conductive element is connected with the signal feed line.