Antenna having a plurality of resonant frequencies
AssigneeNokia Corporation
InventorJani Ollikainen
Life of this patent
Estimating the term…
Abstract
An antenna having a plurality of resonant frequencies and including a ground plane having an edge; a feed point; a ground point; and an antenna track extending between the feed point and the ground point and comprising, in series connection, a first loop and a second loop wherein a least a portion of the first loop and a portion of the second loop are adjacent at least the edge of the ground plane.
Claims49
An antenna having a plurality of resonant frequencies and comprising:
- a ground plane having a first edge and a further edge;
- a feed point;
- a ground point;
- and
- an antenna track extending between the feed point and the ground point and comprising, in series connection, a first loop and a second loop
- wherein a portion of the first loop is adjacent the first edge of the ground plane and a portion of the second loop is adjacent the first or the further edge of the ground plane.
An antenna having a plurality of resonant frequencies and comprising:
- a ground plane;
- a feed point;
- a ground point;
- and
- an antenna track, of length L, extending between the feed point and the ground point and comprising, in series connection, a first loop and a second loop, wherein the first loop has a return bend between L/5 and 2L/5 from the ground point and the second loop has a return bend between 3L/5 and 4L/5 from the ground point.
An antenna having a plurality of resonant frequencies and comprising:
- a ground plane;
- a feed point;
- a ground point;
- an antenna track, of length L, extending between the feed point and the ground point and comprising, in series connection, a first loop and a second loop, wherein the first loop has a return bend between L/5 and 2L/5 from the ground point and the second loop has a return bend between 3L/5 and 4L/5 from the ground point.;
- and
- capacitive loading between 2L/5 and 3L/5 from the ground point.
An antenna having a plurality of resonant frequencies and comprising:
- a ground plane;
- a feed point;
- a ground point;
- and
- an antenna track extending between the feed point and the ground point and comprising, in series connection, a first loop and a second loop and having a first continuous band of operation and a second continuous band of operation, wherein the first continuous band of operation corresponds to a fundamental resonant frequency of the antenna, and the second continuous band of operation corresponds to the second and third harmonic resonances of the fundamental resonant frequency of the antenna, wherein the third harmonic is tuned, using reactive loading, towards the second harmonic.
An antenna having a plurality of resonant frequencies and comprising:
- a ground plane having an edge;
- an antenna track comprising an edge wherein at least a portion of the antenna edge is adjacent the ground plane edge;
- and
- reactive loading of the antenna track.
Dependencies are inferred from the claim text.