Electronic device with shared antenna structures and balun

• Main Authors: PASCOLINI MATTIA, AYALA VAZQUEZ ENRIQUE, MOW MATTHEW A, TONG ERICA J, JIN NANBO, DARNELL DEAN F, HU HONGFEI, OUYANG YUEHUI, TSAI MING-JU, SCHLUB ROBERT W
• Format: Patent
• Language: Chinese; English
• Published: 14.09.2016
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

An electronic device may be provided with shared antenna structures that can be used to form both a near-field-communications antenna such as a loop antenna and a non-near-field communications antenna such as an inverted-F antenna. The antenna structures may include conductive structures such as metal traces on printed circuits or other dielectric substrates, internal metal housing structures, or other conductive electronic device housing structures. A main resonating element arm may be separated from an antenna ground by an opening. A non-near-field communications antenna return path and antenna feed path may span the opening. A balun may have first and second electromagnetically coupled inductors. The second inductor may have terminals coupled across differential signal terminals in a near-field communications transceiver. The first inductor may form part of the near-field communications loop antenna. 本发明提供了种电子设备，该电子设备可具有可用于形成近场通信天线(诸如环形天线)和非近场通信天线(诸如倒F形天线)两者的共享天线结构。该天线结构可包括导电结构，诸如印刷电路或其他电介质基板上的金属迹线、内部金属外壳结