US 10,476,167 B2 · Adjustable multiple-input and multiple-output antenna structures

Abstract

An electronic device may include antennas, a ground, and a housing. First and second gaps in the housing may define a segment that forms a resonating element for a first antenna. First, second, third, and fourth antenna feeds may be coupled between the segment and ground. Control circuitry may control adjustable components to place the device in first, second, third, or fourth modes. In the first and second modes, the first and fourth feeds convey signals at the same frequency using a multiple-input and multiple-output scheme while the second and third feeds are inactive. In the third mode, the second feed is active and the first, third, and fourth feeds are inactive. In the fourth mode, the third feed is active and the first, second, and fourth antenna feeds are inactive. Isolating return paths may be coupled between the segment and ground in the first and second modes.

Claims20

Dependent claims

An electronic device, comprising:

a housing having peripheral conductive structures;
first and second gaps in the peripheral conductive structures that define a segment of the peripheral conductive structures;
an antenna ground;
a first antenna feed coupled between a first location on the segment and the antenna ground;
a second antenna feed coupled between a second location on the segment and the antenna ground;
a third antenna feed coupled between a third location on the segment and the antenna ground, wherein the second location is interposed between the first and third locations on the segment;
a plurality of adjustable components coupled to the segment;
and
control circuitry, wherein the control circuitry is configured to adjust the plurality of adjustable components to place the electronic device in a selected one of a first operating mode in which the first and third antenna feeds are active and the second antenna feed is inactive and a second operating mode in which the second antenna feed is active and the first and third antenna feeds are inactive.

6 more elements

An electronic device, comprising:

a housing having peripheral conductive structures;
an antenna ground;
a first antenna that includes a first resonating element formed from a segment of the peripheral conductive structures extending between first and second dielectric-filled gaps in the peripheral conductive structures, a first antenna feed, and the antenna ground;
a second antenna that includes a second resonating element formed from a first portion of the first resonating element, a second antenna feed, and the antenna ground;
a third antenna that includes a third resonating element formed from a second portion of the first resonating element that is different from the first portion, a third antenna feed, and the antenna ground, wherein the electronic device is operable in a first mode of operation in which the first feed is enabled and the second and third feeds are disabled and in a second mode of operation in which the second and third feeds are enabled and the first feed is disabled;
and
first and second adjustable components coupled between the segment and the antenna ground, wherein the first and second adjustable components are configured to form respective first and second short circuit paths between the segment and the antenna ground in the second mode of operation.

4 more elements

Antenna structures, comprising:

an antenna resonating element arm having opposing first and second ends, the antenna resonating element arm being formed from a segment of peripheral conductive housing structures for an electronic device;
an antenna ground;
a first antenna feed coupled between a first location on the antenna resonating element arm and the antenna ground;
a first adjustable component coupled between a second location on the antenna resonating element arm and the antenna ground, the first location being interposed between the second location and the first end of the antenna resonating element arm;
a second antenna feed coupled between a third location on the antenna resonating element arm and the antenna ground;
a third antenna feed coupled between a fourth location on the antenna resonating element arm and the antenna ground;
and
a second adjustable component coupled between a fifth location on the antenna resonating element arm and the antenna ground, the third and fourth locations being interposed between the second and fifth locations on the antenna resonating element arm.

5 more elements

Dependencies are inferred from the claim text.

Adjustable multiple-input and multiple-output antenna structures

Life of this patent

Adjustable multiple-input and multiple-output antenna structures

Life of this patent

Abstract

Claims20