Patent ID: 9130279
Filing Date: 2015-09-08
Classification: H01Q

Abstract:
1. An electronic device comprising: a first tuner circuit; a first radio frequency (RF) feed coupled to the first tuner circuit; a second tuner circuit; a second RF feed coupled to the second tuner circuit; and a dual-feed antenna comprising: a first folded monopole structure coupled to the first RF feed; and a second folded monopole structure coupled to the second RF feed, wherein the first tuner circuit is configured to independently adjust a first impedance of the first folded monopole structure to achieve a first frequency response, wherein the second tuner circuit is configured to independently adjust a second impedance of the second folded monopole structure to achieve a second frequency response substantially isolated from the first frequency response, wherein the first tuner circuit comprises: wherein the second capacitor and the second inductor are coupled in parallel relative to ground, wherein the second switch further comprises a second input coupled to a third capacitor and a third inductor that are coupled in series to ground, wherein an output of the second switch is coupled in parallel to the first terminal, and wherein at least one of the first capacitor, second capacitor and third capacitor is a tunable capacitor.