Antenna for foldable radio device
First Claim
1. A monopole antenna for a foldable radio device, the radio device comprising a ground plane, the antenna comprising:
- a radiating element including a feed point, wherein an outline of the radiating element forms a planar figure which has a certain width and length, and a plane defined by said outline is substantially perpendicular to the ground plane of the radio device;
said width is smaller than an internal height of the radio device;
the radiating element coupled to the radio device only by the feed point; and
the antenna has at least one resonant frequency and at least one operation band.
4 Assignments
0 Petitions
Accused Products
Abstract
A small and foldable radio device antenna and a radio device which has an antenna according to an embodiment of the invention. The radiating element in the antenna is a conductor having an outline shaped substantially like a rectangle and defining a plane which is perpendicular to the ground plane situated on the circuit board of the radio device. The radiating element fits inside the foldable device in the perpendicular position. The element is connected to the radio device only by its feed point. Resonating frequencies of the element can be arranged by shaping the element, and by means of discrete components. The matching of the antenna is arranged by providing an appropriate distance between the radiating element and ground plane. In an operating situation, an antenna gain is achieved which is considerably higher than that of a PIFA of equal height.
-
Citations
12 Claims
-
1. A monopole antenna for a foldable radio device, the radio device comprising a ground plane, the antenna comprising:
-
a radiating element including a feed point, wherein an outline of the radiating element forms a planar figure which has a certain width and length, and a plane defined by said outline is substantially perpendicular to the ground plane of the radio device;
said width is smaller than an internal height of the radio device;
the radiating element coupled to the radio device only by the feed point; and
the antenna has at least one resonant frequency and at least one operation band. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A foldable radio device comprising:
-
a first and a second folding part;
a monopole antenna, including a radiating element and a feed point, disposed within the first folding part;
the radiating element coupled to the radio device only by the feed point; and
a ground plane;
an outline of the radiating element forms a planar figure having a certain width and length, and a plane defined by said outline is substantially perpendicular to the ground plane of the radio device. - View Dependent Claims (12)
-
Specification