Electronic device with slot antenna and proximity sensor

摘要

An electronic device may be provided with slot antennas. A slot antenna may be formed from metal structures that have a dielectric gap defining an antenna slot. The metal structures may include multiple metal layers that overlap a plastic antenna window and that serve as capacitive electrodes in a capacitive proximity sensor. The metal structures may also include a metal electronic device housing. The metal electronic device housing and the metal layers may be formed on opposing sides of the antenna slot. The metal layers may have a notch that locally widens the antenna slot at an open end of the antenna slot. One of the metal layers may be shorted to the metal electronic device housing at an opposing closed end of the antenna slot. The antenna slot may be indirectly fed using a near-field-coupled antenna feed structure such as a metal patch that overlaps the antenna slot.

主权项

1. An electronic device, comprising:
radio-frequency transceiver circuitry that generates radio-frequency signals at a given frequency; a slot antenna that transmits the radio-frequency signals at the given frequency; a metal housing; a dielectric antenna window in the metal housing; metal structures on the dielectric antenna window that are separated from the metal housing by a slot antenna resonating element in the slot antenna, wherein the metal structures and the metal housing define a shape of the slot antenna resonating element, and the slot antenna comprises a near-field-coupled antenna feed structure that is formed over and near-field coupled to the slot antenna resonating element.