US 10,854,968 B2 · Electronic device antennas having split return paths

Abstract

An electronic device may be provided with wireless circuitry and control circuitry. The wireless circuitry may include multiple antennas and transceiver circuitry. An antenna in the electronic device may have an inverted-F antenna resonating element formed from portions of a peripheral conductive electronic device housing structure and may have an antenna ground that is separated from the antenna resonating element by a gap. A split return path may bridge the gap. The split return path may be coupled between a first point on the inverted-F antenna resonating element arm and second and third points on the antenna ground. The split return path may include a first inductor coupled between the first and second points and a second inductor coupled between the first and third points. The first and second inductors may be adjustable.

Claims14

Dependent claims

An electronic device, comprising:

an electronic device housing having peripheral conductive structures, wherein the peripheral conductive structures include first, second, and third segments;
an antenna ground that includes the second and third segments, a first edge that intersects the second segment, and a second edge connected to the first edge;
an antenna resonating element arm formed from the first segment of the peripheral conductive structures;
an antenna feed having a positive feed terminal coupled to the antenna resonating element arm and a ground feed terminal coupled to the antenna ground;
and
a split return path coupled between a first point on the antenna resonating element arm and second and third points on the antenna ground, wherein the second point is located along the first edge and the third point is located along the second edge.

3 more elements

Dependencies are inferred from the claim text.

Electronic device antennas having split return paths

Life of this patent

Electronic device antennas having split return paths

Life of this patent

Abstract

Claims14