Configurable antenna

摘要

Antenna structures and methods of operating the same of a configurable antenna of an electronic device are described. A configurable antenna includes a first antenna element coupled to a radio frequency (RF) feed, a controllable circuit coupled to the first antenna element and a second antenna element coupled to the controllable circuit. The controllable circuit is configured to electrically isolate the first antenna element and the second antenna element to configure the antenna structure to operate in a first antenna configuration having a first length and to electrically connect the first antenna element and the second antenna element to configure the antenna structure to operate in a second antenna configuration having a second length.

主权项

1. An electronic device, comprising:
a radio frequency (RF) feed; and a configurable antenna coupled to the RF feed, wherein the configurable antenna comprises:
a dual-mode antenna element coupled to the RF feed, wherein the dual-mode antenna comprises a first antenna element and a second antenna element; anda controllable circuit, located between the first antenna element and the second antenna element, connecting the first antenna element and the second antenna element, wherein the controllable circuit is configured to:
electrically isolate the first antenna element from the second antenna element to operate the dual-mode antenna in a first antenna configuration in a first mode; andelectrically connect the first antenna element and the second antenna element to operate in a second antenna configuration in a second mode; anda parasitic ground element coupled to a ground plane, wherein:
the parasitic ground element is not conductively connected to the RF feed,the parasitic ground element is parasitically coupled to the dual-mode antenna element, andthe parasitic ground element is perpendicular to the dual-mode antenna element.