Electronic Device Having Multiport Antenna Structures With Resonating Slot

摘要

Electronic devices may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include an inverted-F antenna resonating element and an antenna ground that form an inverted-F antenna having first and second antenna ports. The antenna structures may include a slot antenna resonating element. The slot antenna resonating element may serve as a parasitic antenna resonating element for the inverted-F antenna at frequencies in a first communications band and may serve as a slot antenna at frequencies in a second communications band. The slot antenna may be directly fed using a third antenna port. An adjustable capacitor may be coupled to the first port to tune the inverted-F antenna. The inverted-F antenna may also be tuned using an adjustable capacitor bridging the slot antenna resonating element.

主权项

1. Electronic device antenna structures, comprising:
an antenna ground; an antenna resonating element that forms a first antenna with the antenna ground, wherein the first antenna has first and second ports; and a slot antenna resonating element having a third antenna port, wherein the slot antenna resonating element forms a second antenna that handles signals through the third antenna port and wherein the slot antenna resonating element forms a parasitic antenna resonating element for the first antenna.