Antenna assembly and electronic device

An electronic device, comprising an antenna assembly, wherein,

• the antenna assembly comprises:
• a rectangular metal frame, wherein the metal frame comprises an inner frame and an outer frame surrounding the inner frame, a first frame of the outer frame is provided with a first gap, a second frame of the outer frame is provided with a second gap, a metal antenna is formed at a part of the outer frame separated between the first gap and the second gap, the metal antenna is connected to the inner frame via a metal connector, a first radiation branch is formed at a part of the metal antenna between the metal connector and the first gap, a second radiation branch is formed at a part of the metal antenna between the metal connector and the second gap, and length of the first radiation branch is less than length of the second radiation branch;
• wherein
• the first frame and the second frame are two adjacent frames of the outer frame, the metal connector and the second gap are both located on a side on which the second frame is located, and the metal connector is located between the second gap and the first frame;
• and
• wherein length of the first frame is less than length of the second-frame frame;
• wherein the antenna assembly further comprises:
• a first grounding switch circuit, a first matching circuit, and a first feed source;
• the first radiation branch is provided with a first switch connecting portion and a first feed source connecting portion, wherein the first switch connecting portion is electrically connected to the first grounding switch circuit, and the first feed source connecting portion is electrically connected to the first feed source via the first matching circuit;
• the antenna assembly further comprises:
• a second grounding switch circuit, a second matching circuit, and a second feed source, the second feed source being different from the first feed source;
• and
• the second radiation branch is provided with a second switch connecting portion and a second feed source connecting portion, wherein the second switch connecting portion is electrically connected to the second grounding switch circuit, and the second feed source connecting portion is electrically connected to the second feed source via the second matching circuit.

An antenna assembly, comprising:

• a rectangular metal frame, wherein the metal frame comprises an inner frame and an outer frame surrounding the inner frame, a first frame of the outer frame is provided with a first gap, a second frame of the outer frame is provided with a second gap,
• wherein the first frame and the second frame are two adjacent frames of the outer frame, and length of the first frame is less than length of the second frame;
• wherein a metal antenna is formed at a part of the outer frame separated between the first gap and the second gap, the metal antenna is connected to the inner frame via a metal connector, a first radiation branch is formed at a part of the metal antenna between the metal connector and the first gap, a second radiation branch is formed at a part of the metal antenna between the metal connector and the second gap, and length of the first radiation branch is less than length of the second radiation branch;
• wherein the metal connector and the second gap are both located on a side on which the second frame is located, and the metal connector is located between the second gap and the first frame;
• wherein the antenna assembly further comprises a first grounding switch circuit, a first matching circuit, and a first feed source, wherein the first radiation branch is provided with a first switch connecting portion and a first feed source connecting portion, wherein the first switch connecting portion is electrically connected to the first grounding switch circuit, and the first feed source connecting portion is electrically connected to the first feed source via the first matching circuit;
• and
• wherein the first grounding switch circuit comprises a first inductor, a second inductor and a third inductor;
• wherein the antenna assembly implements a coverage of a band B3 in a case that the first grounding switch circuit is in an off state;
• and a coverage of a band B1, a coverage of a band B40, and a coverage of a band B41 is implemented by switching the first inductor, the second inductor and the third inductor, respectively;
• wherein the antenna assembly further comprises a second grounding switch circuit, a second matching circuit, and a second feed source, the second feed source being different from the first feed source, wherein the second radiation branch is provided with a second switch connecting portion and a second feed source connecting portion, wherein the second switch connecting portion is electrically connected to the second grounding switch circuit, and the second feed source connecting portion is electrically connected to the second feed source via the second matching circuit;
• and
• wherein the second grounding switch circuit comprises a first capacitor, a second capacitor and a third capacitor;
• wherein the antenna assembly implements a coverage of a band B8 in a case that the second grounding switch circuit is in an off state;
• and a coverage of a band B5, a coverage of a band B20, and a coverage of a band B28 is implemented by switching the first capacitor, the second capacitor and the third capacitor, respectively.