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CN-224204359-U - Antenna assembly and electronic equipment

CN224204359UCN 224204359 UCN224204359 UCN 224204359UCN-224204359-U

Abstract

The embodiment of the utility model discloses an antenna assembly and electronic equipment, wherein a waveguide device is arranged on a protective shell, so that the protective shell is used for protecting and fixing the waveguide device. Thus, the connector is connected to the ground through the shield shell such that the waveguide structure and the shield shell form a first electrical path. The first radiator and the second radiator respectively form a first radiation unit and a second radiation unit with the protective shell so as to transmit and receive electromagnetic signals by utilizing the protective shell. Therefore, the metal break points are prevented from being formed on the protective shell, and the mechanical strength of the protective shell and the signal gain of the antenna assembly are improved. Meanwhile, the manufacturing cost of the protective shell is reduced. On the other hand, the coupling gap between the grounding part and the second radiator is utilized, so that the impedance of the second radiating unit is improved, the waveguide device and the radio frequency circuit still have good impedance characteristics when the antenna assembly is in different working frequency bands, and the working bandwidth of the antenna assembly is improved.

Inventors

  • JI JUNCHENG

Assignees

  • 深圳立讯电声科技有限公司

Dates

Publication Date
20260505
Application Date
20250612

Claims (10)

  1. 1. An antenna assembly, the antenna assembly comprising: A radio frequency circuit; A protective shell (2) The waveguide device (1), the protecting shell (2) covers the waveguide device (1), the waveguide device (1) comprises a waveguide structure (11) electrically connected with the radio frequency circuit, the waveguide structure (11) comprises a radiation part (3) and a grounding part (4), the radiation part (3) comprises a first radiator (31), a second radiator (32) and a connecting body (33), the end parts of the first radiator (31) and the second radiator (32) are electrically connected with one end of the connecting body (33), the other end of the connecting body (33) is connected with the protecting shell (2), and the connecting body (33) forms a first electric path with the protecting shell (2) and the grounding part (4); The first radiator (31) is coupled with the first electric path to form a first radiating unit (51), a coupling gap (13) is formed between the second radiator (32) and the grounding part (4), and the second radiator (32) and the first electric path form a second radiating unit (52), wherein the working frequency range of the second radiating unit (52) is different from that of the first radiating unit (51), and the impedance of the second radiating unit (52) is larger than that of the first radiating unit (51).
  2. 2. The antenna assembly according to claim 1, characterized in that the ground (4) is adjacent to the second radiator (32) and remote from the first radiator (31); The grounding part (4) is provided with a first connecting area (41) and a grounding area (42), the grounding area (42) is positioned between the coupling gap (13) and the first connecting area (41), and the first connecting area (41) is connected with the protective shell (2).
  3. 3. The antenna assembly according to claim 2, wherein the protective housing (2) comprises a first housing part (22) and a second housing part (23), the first housing part (22) and the second housing part (23) being snapped together to form a receiving area (21), the first housing part (22) comprising a rim (221); The waveguide device (1) is arranged in the accommodating area (21), the waveguide device (1) further comprises a substrate (12), at least part of the waveguide structure (11) is arranged on the substrate (12), the substrate (12) is fixedly connected with the first shell part (22), and the first connecting area (41) is abutted to the frame (221).
  4. 4. An antenna assembly according to claim 3, characterized in that the rim (221) has a positioning slot (222), the positioning slot (222) being directed towards the inside of the first housing part (22); The base plate (12) comprises a positioning protrusion (121), the positioning protrusion (121) is convexly arranged on the plate edge of the base plate (12), the first connecting area (41) is located on the positioning protrusion (121), the positioning protrusion (121) is inserted into the positioning groove (222), and the first connecting area (41) is abutted to the inner wall of the positioning groove (222).
  5. 5. An antenna assembly according to claim 1, characterized in that the connection body (33) extends in a direction away from the ground (4); One end of the second radiator (32) is provided with a feed area (321), the other end of the second radiator (32) extends in a direction away from the first radiator (31), and the grounding part (4) is positioned on one side, away from the connecting body (33), of the second radiator (32).
  6. 6. The antenna assembly according to claim 5, characterized in that the waveguide structure (11) comprises a conductive pattern (14) and the connection body (33), the conductive pattern (14) comprising the ground part (4), the first radiator (31), the second radiator (32) and a second connection area (15), the first radiator (31) and the second radiator (32) extending from the second connection area (15) to both sides, the connection body (33) being a conductive foil; The waveguide device (1) further comprises a substrate (12), the conductive pattern (14) is arranged on the substrate (12), one end of the conductive foil is attached to the second connection area (15), and the other end of the conductive foil is attached to the protective shell (2).
  7. 7. The antenna assembly according to claim 6, characterized in that the protective housing (2) comprises a first housing part (22) and a second housing part (23), the first housing part (22) being snapped with the second housing part (23), the first housing part (22) having a mounting face (223), the mounting face (223) having a mounting groove (224) facing the second housing part (23); The waveguide device (1) is arranged in the mounting groove (224), and the conductive foil extends from the second connection area (15) to the mounting surface (223) and is electrically connected with the mounting surface (223).
  8. 8. The antenna assembly of claim 7, wherein the conductive pattern (14) further comprises a third connection region (16), the third connection region (16) is located on a side of the first radiator (31) adjacent to the mounting surface (223), the conductive foil is electrically connected to the third connection region (16) through the mounting surface (223) and forms a second electrical path, and the first radiator (31) is coupled to the second electrical path.
  9. 9. The antenna assembly according to claim 5, characterized in that the ground (4) has a ground area (42); The antenna assembly further comprises a coaxial line (6), the coaxial line (6) having a connection end (61), the connection end (61) comprising an inner conductor (62) and an outer conductor (63); The connection end (61) is bent from the grounding part (4) to the second radiator (32), the outer conductor (63) is connected with the grounding area (42), and the inner conductor (62) is connected with the feeding area (321).
  10. 10. An electronic device, the electronic device comprising: The antenna assembly of any one of claims 1-9.

Description

Antenna assembly and electronic equipment Technical Field The present utility model relates to the field of communications technologies, and in particular, to an antenna assembly and an electronic device. Background The metal breakpoint arranged on the shell can prevent the antenna from being coupled with the shell, and the shell is prevented from affecting the receiving and transmitting performance of the antenna. However, the metal break points also increase the manufacturing cost and affect the structural strength of the housing. In addition, when the working frequency band of the antenna is wider, the impedance characteristic of the antenna is also affected by the electromagnetic signal with higher frequency, so that the antenna is not beneficial to work in a high-frequency state. How to improve the working bandwidth of the antenna and reduce the influence of the shell on the receiving and transmitting performance of the antenna becomes a problem to be solved. Disclosure of utility model In view of this, the embodiment of the utility model provides an antenna assembly and an electronic device, which are configured to transmit and receive a high-frequency electromagnetic signal by increasing the impedance of a second radiation unit with respect to the high-frequency electromagnetic signal. Meanwhile, the first radiation unit and the second radiation unit may share the first electrical path, so that the high frequency or low frequency electromagnetic signal may be radiated to the outside using the protective case. According to a first aspect of an embodiment of the present utility model, there is provided an antenna assembly comprising: A radio frequency circuit; protective shell, and The waveguide device is covered by the protective shell, the waveguide device comprises a waveguide structure electrically connected with the radio frequency circuit, the waveguide structure comprises a radiation part and a grounding part, the radiation part comprises a first radiator, a second radiator and a connecting body, the end parts of the first radiator and the second radiator are electrically connected with one end of the connecting body, the other end of the connecting body is connected with the protective shell, and the connecting body, the protective shell and the grounding part form a first electric path; the first radiator is coupled with the first electric path to form a first radiation unit, a coupling gap is formed between the second radiator and the grounding part, and the second radiator and the first electric path form a second radiation unit, wherein the working frequency band of the second radiation unit is different from that of the first radiation unit, and the impedance of the second radiation unit is larger than that of the first radiation unit. Further, the ground is adjacent to the second radiator and remote from the first radiator; The grounding part is provided with a first connecting area and a grounding area, the grounding area is positioned between the coupling gap and the first connecting area, and the first connecting area is connected with the protective shell. Further, the protective shell comprises a first shell part and a second shell part, the first shell part and the second shell part are buckled to form a containing area, and the first shell part comprises a frame; The waveguide device is arranged in the accommodating area, the waveguide device further comprises a substrate, at least part of the waveguide structure is arranged on the substrate, the substrate is fixedly connected with the first shell part, and the first connecting area is in butt joint with the frame. Further, the frame is provided with a positioning groove which faces to the inner side of the first shell part; The base plate comprises a positioning protrusion, the positioning protrusion is convexly arranged on the plate edge of the base plate, the first connecting area is positioned on the positioning protrusion, the positioning protrusion is inserted into the positioning groove, and the first connecting area is abutted with the inner wall of the positioning groove. Further, the connecting body extends in a direction away from the grounding portion; One end of the second radiator is provided with a feed area, the other end of the second radiator extends in a direction away from the first radiator, and the grounding part is positioned at one side of the second radiator away from the connecting body. Further, the waveguide structure comprises a conductive pattern and the connector, the conductive pattern comprises the grounding part, the first radiator, the second radiator and a second connection area, the first radiator and the second radiator extend to two sides from the second connection area, and the connector is a conductive foil; The waveguide device further comprises a substrate, the conductive pattern is arranged on the substrate, one end of the conductive foil is attached to the second connecting area, and the