Electronic device with multiple antenna modes
An antenna structure including a slot antenna and a wire antenna is disposed, and the antenna structure is excited to generate four antenna modes: a common mode slot antenna, a differential mode slot antenna, a common mode wire antenna, and a differential mode wire antenna in a symmetric feed manner and an anti-symmetric feed manner.
1. An electronic device, comprising a circuit board and an antenna structure, wherein the antenna structure comprises a first metal segment, a second metal segment, a first conductive segment, a second conductive segment, a first feed circuit, and a second feed circuit, a first gap is formed between the first metal segment and a side surface of the circuit board, a second gap is formed between the second metal segment and a side surface of the circuit board, and the second gap extends to the first gap;
in a first direction, the first metal segment comprises a first portion, a first ground portion, and a second portion that are successively connected, the second metal segment comprises a third portion, a second ground portion, and a fourth portion that are successively connected, a third gap is formed between the second portion and the third portion, the third gap extends to the first gap and the second gap, an end portion that is of the first portion and that is opposite to the first ground portion is an open end that is not grounded, and an end portion that is of the fourth portion and that is opposite to the second ground portion is an open end that is not grounded;
a negative electrode of the first feed circuit is grounded, and a positive electrode of the first feed circuit is connected to the second portion of the first metal segment and is connected to the third portion of the second metal segment; and
the first conductive segment comprises a first end and a second end, the first end is grounded, the second end is connected to the first portion of the first metal segment, the second conductive segment comprises a third end and a fourth end, the third end is grounded, the fourth end is connected to the fourth portion of the second metal segment, a negative electrode of the second feed circuit is electrically connected between the first end and the second end, and a positive electrode of the second feed circuit is electrically connected between the third end and the fourth end.
2. The electronic device according to claim 1 , wherein the antenna structure further comprises a first insulation segment and a second insulation segment, and in the first direction, the first insulation segment is connected to the open end of the first portion, and the second insulation segment is connected to the open end of the fourth portion.
3. The electronic device according to claim 2 , wherein the electronic device comprises a bezel, the circuit board, the first feed circuit, and the second feed circuit are all located in a region enclosed by the bezel, the first metal segment, the second metal segment, the first insulation segment, and the second insulation segment are each a portion of the bezel, and the bezel further comprises a third insulation segment filled in the third gap.
4. The electronic device according to claim 1 , wherein the antenna structure is configured to generate five resonance modes to expand a frequency band in which the antenna structure radiates or receives a signal.
5. The electronic device according to claim 1 , wherein the antenna structure further comprises a bridge structure, one end of the bridge structure is connected to the second portion of the first metal segment, and an other end of the bridge structure is connected to the third portion of the second metal segment, and the positive electrode of the first feed circuit is connected to a middle portion of the bridge structure.
6. The electronic device according to claim 5 , wherein the antenna structure further comprises a third conductive segment, a fourth conductive segment, a first matching circuit, and a second matching circuit;
the second end of the first conductive segment is successively connected to the first matching circuit, the third conductive segment, and the first portion; and
the fourth end of the second conductive segment is successively connected to the second matching circuit, the fourth conductive segment, and the fourth portion.
7. The electronic device according to claim 6 , wherein the first conductive segment and the second conductive segment are two symmetrical parallel conducting wires extending from a ground plane in the circuit board.
8. The electronic device according to claim 6 , wherein a width direction of the electronic device is an X direction, a length direction of the electronic device is a Y direction, a thickness direction of the electronic device is a Z direction, and in the Z direction, there is a height difference between the first conductive segment and the third conductive segment, and between the second conductive segment and the fourth conductive segment.
9. The electronic device of claim 1 , wherein the first conductive segment is different than the first metal segment and the second conductive segment is different than the second metal segment.
10. The electronic device of claim 1 , wherein the first conductive segment does not overlap the first metal segment and the second conductive segment does not overlap the second metal segment.
11. An electronic device, comprising a circuit board and an antenna structure, wherein the antenna structure comprises a first metal segment, a second metal segment, a third metal segment, a first conductive segment, a second conductive segment, a first feed circuit, and a second feed circuit, a first gap is formed between the first metal segment and a side surface of the circuit board, a second gap is formed between the second metal segment and a side surface of the circuit board, a third gap is formed between the third metal segment and the side surface of the circuit board, and the first gap, the second gap, and the third gap extend to each other;
in a first direction, the second metal segment comprises a first portion, a first ground portion, and a second portion that are successively connected, a fourth gap is formed between one end of the first metal segment and the first portion, and an other end of the first metal segment is grounded, a fifth gap is formed between one end of the third metal segment and the second portion, and an other end of the third metal segment is grounded, and the fourth gap and the fifth gap extend to the first gap, the second gap, and the third gap;
a negative electrode of the first feed circuit is grounded, and a positive electrode of the first feed circuit is connected to the first portion and the second portion of the second metal segment; and
the first conductive segment comprises a first end and a second end, the first end is grounded, the second end is connected to the first metal segment, the second conductive segment comprises a third end and a fourth end, the third end is grounded, the fourth end is connected to the third metal segment, a negative electrode of the second feed circuit is electrically connected between the first end and the second end, and a positive electrode of the second feed circuit is electrically connected between the third end and the fourth end.
12. The electronic device according to claim 11 , wherein the antenna structure is configured to generate six resonance modes to expand a frequency band in which the antenna structure radiates or receives a signal.
13. The electronic device according to claim 11 , wherein the electronic device comprises a bezel, the circuit board, the first feed circuit, and the second feed circuit are all located in a region enclosed by the bezel, the first metal segment, the second metal segment, and the third metal segment are each a portion of the bezel, and the bezel further comprises a first insulation segment filled in the fourth gap and a second insulation segment filled in the fifth gap.
14. The electronic device according to claim 11 , wherein the antenna structure further comprises a bridge structure, one end of the bridge structure is connected to the first portion of the second metal segment, and an other end of the bridge structure is connected to the second portion of the second metal segment, and the positive electrode of the first feed circuit is connected to a middle portion of the bridge structure.
15. The electronic device according to claim 14 , wherein the antenna structure further comprises a third conductive segment, a fourth conductive segment, a first matching circuit, and a second matching circuit;
the second end of the first conductive segment is successively connected to the first matching circuit, the third conductive segment, and the first metal segment; and
the fourth end of the second conductive segment is successively connected to the second matching circuit, the fourth conductive segment, and the third metal segment.
16. The electronic device according to claim 15 , wherein the first conductive segment and the second conductive segment are two symmetrical parallel conducting wires extending from a ground plane in the circuit board.
17. The electronic device according to claim 15 , wherein a width direction of the electronic device is an X direction, a length direction of the electronic device is a Y direction, a thickness direction of the electronic device is a Z direction, and in the Z direction, there is a height difference between the first conductive segment and the third conductive segment, and between the second conductive segment and the fourth conductive segment.