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US-12627040-B2 - Antenna module

US12627040B2US 12627040 B2US12627040 B2US 12627040B2US-12627040-B2

Abstract

An antenna module includes two antennas, a reflecting board, and a plurality of extending plates. The extending plate has a first surface and a second surface. The first surface extends along a first axis and a second axis perpendicular to the first axis. The two antennas are disposed on the first surface and spaced along the first axis. A spacing zone is defined in the reflecting board and located between the two antennas along the first axis. The spacing zone has a shielding portion. A periphery of the shielding portion has a plurality of open grooves. Each open groove penetrates through the first surface and the second surface. The shielding portion has a plurality of side edges, wherein each side edge is adjacent to each open groove. Each extending plate extends towards the second surface. The shielding portion and the extending plates jointly form a shielding cover.

Inventors

  • Chien-Hua Wu
  • Chun-Yi Kuo

Assignees

  • ACCTON TECHNOLOGY CORPORATION

Dates

Publication Date
20260512
Application Date
20240226
Priority Date
20230921

Claims (18)

  1. 1 . An antenna module, comprising: two antennas; a reflecting board having a first surface and a second surface opposite to the first surface, wherein the first surface extends along a first axis and a second axis; the first axis is perpendicular to the second axis; the two antennas are disposed on the first surface and are spaced along the first axis; a spacing zone is defined in the reflecting board, wherein the spacing zone is located between the two antennas and has a shielding portion; a periphery of the shielding portion has a plurality of open grooves, wherein each of the plurality of open grooves penetrates through the first surface and the second surface; the shielding portion has a plurality of side edges, wherein each of the plurality of side edges is adjacent to each of the plurality of open grooves; and a plurality of extending plates respectively connected to the plurality of side edges, wherein each of the plurality of extending plates extends towards the second surface; wherein the shielding portion and the plurality of extending plates jointly form a shielding cover.
  2. 2 . The antenna module as claimed in claim 1 , wherein each of the plurality of extending plates is integrated with each of the plurality of side edges.
  3. 3 . The antenna module as claimed in claim 2 , wherein two of the plurality of extending plates facing each other respectively have an inner surface; the two inner surfaces of the two extending plates face each other; at least one positioning hole is disposed on each of the two inner surfaces.
  4. 4 . The antenna module as claimed in claim 2 , wherein each of the plurality of open grooves has a longitudinal direction and a lateral direction; each of the plurality of open grooves has a width along the lateral direction of each of the plurality of open grooves; each of the plurality of extending plates has a height along a third axis which is perpendicular to the first axis; the height is not greater than the width.
  5. 5 . The antenna module as claimed in claim 4 , wherein the plurality of open grooves comprise two first open grooves; the two first open grooves are spaced along the first axis; the longitudinal direction of each of the two first open grooves extends along the second axis.
  6. 6 . The antenna module as claimed in claim 5 , wherein a length of each of the two first open grooves along the longitudinal direction of each of the two first open grooves is a first length; the first length is between 37 mm and 73 mm; a distance between the two first open grooves along the first axis is between 27 mm and 55 mm.
  7. 7 . The antenna module as claimed in claim 6 , wherein the plurality of open grooves comprise two second open grooves; the two second open grooves are spaced along the second axis; the longitudinal direction of each of the two second open grooves extends along the first axis.
  8. 8 . The antenna module as claimed in claim 7 , wherein a length of each of the two second open grooves along the longitudinal direction of each of the two second open grooves is a second length; the second length is between 27 mm and 55 mm.
  9. 9 . The antenna module as claimed in claim 6 , wherein each of the two antennas has a longitudinal direction and a lateral direction; a distance between a center of one of the two antennas in the lateral direction of the antenna and a center of the other antenna in the lateral direction of the other antenna along the first axis is provided; the distance is between 80 mm and 135 mm.
  10. 10 . The antenna module as claimed in claim 5 , wherein each of the two antennas has a longitudinal direction; the longitudinal direction of each of the two antennas extends along the second axis.
  11. 11 . An antenna module, comprising: two antennas, wherein each of the two antennas has a longitudinal direction; and a reflecting board having a first surface and a second surface opposite to the first surface, wherein the first surface extends along a first axis and a second axis; the first axis is perpendicular to the second axis; the two antennas are disposed on the first surface and are spaced along the first axis; a spacing zone is defined in the reflecting board and is located between the two antennas; the spacing zone of the reflecting board has a plurality of open grooves, wherein each of the plurality of open grooves penetrates through the first surface and the second surface and has a longitudinal direction and a lateral direction; the longitudinal direction of each of the plurality of open grooves extends along the first axis or extends along the second axis; each of the plurality of open grooves is closed along the first axis and the second axis; when the longitudinal direction of each of the plurality of open grooves extends along the second axis, the longitudinal direction of each of the two antennas is parallel to the longitudinal direction of each of the plurality of open grooves, and two ends of each of the two antennas in the longitudinal direction of each of the two antennas are located between two ends of each of the plurality of open grooves in the longitudinal direction of each of the plurality of open grooves.
  12. 12 . The antenna module as claimed in claim 11 , wherein the plurality of open grooves comprises two open grooves; the two longitudinal directions of the two open grooves are parallel.
  13. 13 . The antenna module as claimed in claim 11 , wherein the plurality of open grooves comprises two first open grooves; the two first open grooves are spaced along the first axis; the longitudinal direction of each of the two first open grooves extends along the second axis.
  14. 14 . The antenna module as claimed in claim 13 , wherein a length of each of the two first open grooves along the longitudinal direction of each of the two first open grooves is a first length; the first length is between 37 mm and 73 mm; a distance between the two first open grooves along the first axis is between 27 mm and 55 mm.
  15. 15 . The antenna module as claimed in claim 14 , wherein the plurality of open grooves comprises two second open grooves; the two second open grooves are spaced along the second axis; the longitudinal direction of each of the two second open grooves extends along the first axis.
  16. 16 . The antenna module as claimed in claim 15 , wherein a length of each of the two second open grooves along the longitudinal direction of each of the two second open grooves is a second length; the second length is between 27 mm and 55 mm; the second length is three quarters times the first length.
  17. 17 . The antenna module as claimed in claim 14 , wherein each of the two antennas has a longitudinal direction and a lateral direction; a distance between a center of one of the two antennas in the lateral direction of the antenna and a center of the other antenna in the later direction of the other antenna along the first axis is provided; the distance is between 80 mm and 135 mm.
  18. 18 . The antenna module as claimed in claim 13 , wherein the longitudinal direction of each of the two antennas extends along the second axis.

Description

BACKGROUND OF THE INVENTION Technical Field The present disclosure relates generally to an antenna module of a wireless equipment, and more particularly to an antenna module which could be a shielding cover of an electronic component and an antenna module which could enhance an isolation between two antennas. Description of Related Art Wireless communication has been an indispensable part of a modern society and includes a mobile phone, a wireless internet, and so on. However, when an electronic component of a wireless equipment is disposed in a location near an antenna, a radio frequency (RF) could be leaked, which affects a receiving efficiency of the antenna or an emission efficiency of the antenna. A conventional wireless equipment 100 is illustrated in FIG. 1 and includes a circuit board 100a, an electronic component 100b (such as an integrated circuit), an antenna module 100c which is located above the electronic component 100b, and a shielding structure 100d. The shielding structure 100d includes a shielding frame 100e and a shielding cover 100f, wherein the shielding frame 100e is disposed on the circuit board 100a and surrounds a periphery of the electronic component 100b. A top of the shielding frame 100e is open. A thermal pad 100i is disposed on a top of the electronic component 100b. The shielding cover 100f includes a top plate 100g and a plurality of extending plates 100h, wherein the extending plates 100h are connected to a periphery of the top plate 100g. The shielding cover 100f covers the shielding frame 100e. The top plate 100g closes the top of the shielding frame 100e and is in contact with the thermal pad 100i. The extending plate 100h wraps a periphery of the shielding frame 100e. Through the shielding frame 100e and the shielding cover 100f, the leakage of the radio frequency of the electronic component 100b could be blocked, so that the efficiency of the antenna module 100c could be prevented from being affected. However, adding the shielding cover would increase a production cost. As a result, a cost effectiveness of the conventional shielding structure is not ideal for resolving the problem of reducing the leakage of the radio frequency. Additionally, two antennas are also applied to the wireless equipment to receive and emit a wireless signal. A problem that the two adjacent antennas interfere each other could happen. Although an isolation between the two antennas could be improved by increasing an interval between the two antennas, such way to increase the interval still has limitations when the interval could not be increased due to limitations of space. BRIEF SUMMARY OF THE INVENTION In view of the above, the primary objective of the present disclosure is to provide an antenna module, which could be a shielding cover of an electronic component. Another primary objective of the present disclosure is to provide an antenna module, which could enhance an isolation between two antennas. The present disclosure provides an antenna module including two antennas, a reflecting board, and a plurality of extending plates, wherein the reflecting board has a first surface and a second surface opposite to the first surface; the first surface extends along a first axis and a second axis, wherein the first axis is perpendicular to the second axis; the two antennas are disposed on the first surface and are spaced along the first axis; a spacing zone is defined in the reflecting board, is located between the two antennas, and has a shielding portion; a periphery of the shielding portion has a plurality of open grooves; each of the open grooves penetrates through the first surface and the second surface; the shielding portion has a plurality of side edges, wherein each of the side edges is adjacent to each of the open grooves; the extending plates are respectively connected to the side edges; each of the extending plates extends towards the second surface; wherein the shielding portion and the extending plates jointly form a shielding cover. With the aforementioned design, the extending plate of the antenna module and the shielding portion of the antenna module could be the shielding cover of the electronic component, and the open grooves could enhance the isolation between the two antennas. The present disclosure further provides an antenna module including two antennas and a reflecting board, wherein the reflecting board has a first surface and a second surface opposite to the first surface; the first surface extends along a first axis and a second axis, wherein the first axis is perpendicular to the second axis; the two antennas are disposed on the first surface and are spaced along the first axis; a spacing zone is defined in the reflecting board and is located between the two antennas; the spacing zone of the reflecting board has at least one open groove, wherein the at least one open groove penetrates through the first surface and the second surface. With the aforementioned design, the at