Multi-band antenna

摘要

An antenna which operates in a plurality of frequency bands includes a feeding point, a first conductor which is connected to the feeding point, and at least two second conductors which are branched from the first conductor, have a linear shape, and include open ends as ends on a side opposite to the first conductor. The open ends of the two second conductors face in almost the same direction substantially parallel to a side closest to the feeding point out of the sides of an antenna region. The two second conductors include a part at which the distance between the two conductors at a portion parallel to the side is a first distance, and another part at which the distance is a second distance shorter than the first distance, and are electromagnetically coupled at, at least the other part.

主权项

1. A multi-band antenna which operates in a plurality of frequency bands, comprising:
a feeding point; a first conductor which is connected to said feeding point; and at least two second conductors which are branched from said first conductor, have a linear shape, and include open ends as ends on a side opposite to said first conductor, wherein the open ends of said second conductors face in substantially the same direction substantially parallel to a side closest to said feeding point out of sides of a region where the antenna is formed, said second conductors include a part at which a distance between said conductors at a portion parallel to the side is a first distance, and another part at which the distance is a second distance shorter than the first distance, and said second conductors are electromagnetically coupled at at least the other part, the other parts of each of the last two conductors are arranged on different flat surfaces.