Patent ID: 9735829
Date: 2017-08-15
CPC Classifications: H04B

Claim:
1. An electronic device, comprising: a board, comprising a peripheral portion, a conductive region comprising a ground, and a non-conductive region; an external conductor located in the peripheral portion and comprising a first non-segmented conductor connected to the ground and having persistence to perform as an antenna; a first antenna pattern configured to receive a first feed signal and connected to the first non-segmented conductor to contribute to a first resonance of a first communications band; a second antenna pattern configured to receive a second feed signal and connected to the first non-segmented conductor to contribute to a second resonance of a second communications band; a first shield located between the first antenna pattern and the second antenna pattern to shield signal interference therebetween and connected to each of the ground and the first non-segmented conductor, and a first impedance adjusting circuit located in a region between the first antenna pattern and the first non-segmented conductor and a region between the first antenna pattern and the ground, wherein the first impedance adjusting circuit adjusts impedance in order to change a resonance frequency within the first communications band associated with the first antenna pattern, and wherein the first impedance adjusting circuit comprises a fixing coupling element and a switch impedance circuit connected in parallel to the fixing coupling element.