Multi-band loop antenna
AssigneeAGC Automotive Americas R&D, Inc.
InventorsWladimiro Villarroel, Nuttawit Surittikul, Qian Li, Kwan-ho Lee
Life of this patent
Estimating the term…
Abstract
An antenna includes a non-conductive pane, a ground plane disposed on the non-conductive pane, and a radiating strip disposed on the non-conductive pane for operating in a plurality of frequency bands. The radiating strip defines a plurality of loops. A portion of a periphery of one of the loops coincides with at least a portion of a periphery of another of the loops. The radiating strip also includes at least one branch extending away from the periphery of one of the loops to allow tuning and shifting of the resonant frequencies of the antenna.
Claims19
A multi-band antenna comprising:
- a ground plane formed of conductive material;
- a radiating strip formed of conductive material and disposed generally co-planar with said ground plane;
- said radiating strip electrically isolated from said ground plane;
- said radiating strip defining a plurality of loops each defining a periphery wherein at least a portion of said periphery of one of said loops coincides with at least a portion of said periphery of another of said loops;
- and
- said radiating strip including at least one branch extending away from said periphery of one of said loops.
A multi-band antenna comprising:
- a ground plane formed of conductive material;
- a radiating strip formed of conductive material;
- said radiating strip electrically isolated from said ground plane;
- said radiating strip defining a first loop defined by a periphery of four segments of conductive material and a second loop defined by a periphery of four segments of conductive material wherein one segment of said periphery of said first loop coincides with one segment of said periphery of said second loop;
- and
- said radiating strip defining a third loop defined by a periphery of four segments wherein one of said segments coincides with at least a portion of one of said segments of said periphery of said first loop or said second loop.
A window for a vehicle having an integrated multi-band antenna, said window comprising:
- a non-conductive pane formed of a transparent material;
- a ground plane formed of conductive material and disposed on said non-conductive pane;
- a radiating strip formed of conductive material and disposed on said non-conductive pane such that said radiating strip is generally co-planar with said ground plane;
- said radiating strip electrically isolated from said ground plane;
- said radiating strip defining a plurality of loops each defining a periphery wherein at least a portion of said periphery of one of said loops coincides with at least a portion of said periphery of another of said loops;
- and
- said radiating strip including at least one branch extending away from said periphery of one of said loops.
Dependencies are inferred from the claim text.