Patent ID: 8654022
Filing Date: 2014-02-18
Classification: H01Q

Abstract:
1. A multi-layered planar multi-band antenna, comprising: a magnetic loop located on a first plane and configured to generate a magnetic field, the magnetic loop including a first section and a second section, wherein the magnetic loop has a first inductive reactance adding to a total inductive reactance of the multi-band antenna; a monopole formed by a substantially stair-shaped portion of the magnetic loop, the monopole configured to create a resonant mode of a first frequency band, and wherein one or more other portions of the magnetic loop resonate in phase with the monopole at the first frequency band; and an electric field radiator located on the first plane and within the magnetic loop, the first electric field radiator coupled to the magnetic loop and configured to emit an electric field at a second frequency band, the electric field emitted orthogonal to the magnetic field, wherein the electric field radiator has a first capacitive reactance adding to a total capacitive reactance of the multi-band antenna, wherein a physical arrangement between the electric field radiator and the magnetic loop results in a second capacitive reactance adding to the total capacitive reactance, wherein one or more second sections of the magnetic loop resonate in phase with the electric field radiator at the second frequency band, and wherein the total inductive reactance substantially matches the total capacitive reactance.