Patent ID: 9577336
Date: 2017-02-21
CPC Classifications: H01Q

Claim:
1. A wireless electronic device comprising: an inverted-F antenna (IFA) comprising an IFA exciting element, an IFA feed, and a grounding pin, wherein the IFA exciting element is configured to resonate at a resonant frequency when excited by a signal received through the IFA feed; a choke notch having a length defined based on the resonant frequency of the IFA exciting element, wherein the choke notch is electrically coupled to the IFA exciting element through the grounding pin; and a ground patch that is electrically coupled between the choke notch and a ground plane, wherein the length of the choke notch corresponds to approximately 0.5 wavelengths of the resonant frequency of the IFA exciting element, and wherein the IFA feed is located near a center of the choke notch, at approximately 0.25 wavelengths of the resonant frequency of the IFA.