US 8,138,984 B2 · Planar antenna

Abstract

The present invention discloses a planar antenna including a substrate, a ground plane and a feed line. The ground plane is disposed on one side of the substrate. The ground plane includes a hollow portion. The feed line disposed on another side of the substrate and corresponding to the hollow portion for feeding a signal. The present invention also discloses a planar antenna including a substrate, a ground plane and a feed line. The ground plane is disposed on one side of the substrate. The ground plane includes a first hollow portion and a second hollow portion. The feed line is disposed on another side of the substrate and having a first branch feed portion and a second branch feed portion for feeding a signal, and the first branch feed portion and the second branch feed portion are aligned with the first hollow portion and the second hollow portion respectively.

Claims22

Dependent claims

A planar antenna, comprising:

a substrate;
a ground plane, disposed on one side of the substrate, and having a hollow portion being a rectangular slot, with a longer side paralleled to one edge of the substrate, and with an opening disposed on one end of the longer side, the opening being communicating with the edge of the substrate;
and
a feed line, disposed on another side of the substrate and corresponding to the hollow portion, the feed line being substantially L-shaped with a longer portion and a shorter portion, the longer portion being horizontally overlapped with the hollow portion of the ground plane, such that substantially all of the longer portion being accommodated within the hollow portion, and the feed line being arranged for feeding a signal.

1 more element

Dependencies are inferred from the claim text.

Planar antenna

Life of this patent

Planar antenna

Life of this patent

Abstract

Claims22