Patent ID: 9698857
Date: 2017-07-04
CPC Classifications: H01Q,H04B,H04W

Claim:
1. An electronic device comprising: a ground plane; a first radio frequency (RF) feed; RF circuitry coupled to the first RF feed; an antenna element coupled to the first RF feed, the antenna element comprising a first arm and a second arm; and a single-pole-single-throw (SPST) switch coupled between the antenna element and the ground plane, wherein the RF circuitry is operable to control the SPST switch between a closed state and an open state, wherein the RF circuitry is operable to cause a first current flow on the antenna element to achieve a first radiation pattern of electromagnetic energy in a first resonant mode when the SPST switch is in the closed state, wherein the antenna element operates as a loop antenna when the SPST switch is in the closed state, wherein the RF circuit is operable to cause a second current flow on the antenna element to achieve a second radiation pattern of electromagnetic energy in a second resonant mode when the SPST switch is in the open state, wherein the antenna element operates as a monopole antenna when the SPST switch is in the open state, wherein the second radiation pattern is different than the first radiation pattern, wherein the ground plane comprises a first edge and a second edge that collectively form a cutout area in which the antenna element is disposed in a same plane as the ground plane, wherein the RF feed is disposed on the first edge and the first arm extends from the RF feed in a first direction perpendicular to the first edge; and wherein the SPST switch is coupled to a grounding point disposed on the second edge and the second arm extends in a second direction perpendicular to the second edge, the second arm and the first arm being coupled at distal ends away from the ground plane.