CN211719769U

CN211719769U - Handheld communication equipment and fan-out type multi-antenna module thereof

Info

Publication number: CN211719769U
Application number: CN202020617518.0U
Authority: CN
Inventors: 张丽丽; 罗振东
Original assignee: Shenzhen Qianhai Paisu Technology Co ltd
Current assignee: Shenzhen Qianhai Paisu Technology Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2020-10-20
Anticipated expiration: 2030-04-22

Abstract

The utility model is suitable for an antenna communication technology field provides a handheld communication equipment and fan out type many antenna module thereof. The fan-out type multi-antenna module comprises a plurality of antennas, a low dielectric constant dielectric substrate, an intermediate dielectric constant dielectric substrate, a high dielectric constant dielectric substrate, an active high-frequency chip and a module interconnection structure. The utility model discloses the corner with handheld terminal that can be fine matches, saves space. The utility model discloses a many antennas fan-out structure need not to adopt beam forming algorithm, adopts the switch to switch over the structure, and cost and power loss have been reduced has promoted handheld terminal equipment's electric energy duration. The utility model discloses a multiple gradual change formula dielectric material, the electromagnetic wave propagates in the medium focusing lens structure can be tied and produce the focus by the high medium of dielectric constant, forms the plane wave for antenna radiation beam narrows down, and antenna gain and directionality uprise, have reduced the requirement to active chip output, have solved the difficult point that synthetic antenna gain is low.

Description

Handheld communication equipment and fan-out type multi-antenna module thereof

Technical Field

The utility model belongs to the technical field of antenna communication, especially, relate to a handheld communication equipment and fan out type multi-antenna module thereof.

Background

In 5G communication handheld terminal equipment, certain requirements are placed on antenna gain and antenna scanning range in a multi-antenna system. In a handheld mobile terminal, there is a need for an antenna that is small in size, compact in construction, and easy to integrate with an active chip, thereby forming a compact active antenna module in a handheld device.

In the antenna module of the existing 5G communication handheld terminal, the antenna structure adopts an array form to improve the gain, and a beam forming control method is used to form beam scanning. Referring to fig. 1 and 2, a conventional antenna module structure is shown, which includes a plurality of antennas 1 ', a dielectric substrate 2', an active high frequency chip 3, and a module interconnection structure 4, wherein the dielectric substrate 2 'is square, and the plurality of antennas 1' are arranged to form a square array antenna, which is not favorable for effectively utilizing the space in the handheld terminal. Meanwhile, referring to fig. 3 and 4, the gain of the conventional synthesized antenna is low, and a beamforming algorithm needs to be operated in the implementation of array beamforming, which may cause large power loss and is not favorable for battery endurance of the handheld terminal.

Based on the above existing problems, there is a need for a novel multi-antenna module with a small structure, which effectively realizes beam scanning, and has strong gain and directivity and small power loss.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a handheld communication equipment and fan out type many antenna module thereof is provided, what the antenna module that aims at among the current handheld communication equipment exists is unfavorable for integrating in handheld terminal, and the gain is low, and the directivity is weak and the great problem of power loss.

The utility model discloses a realize like this, fan-out type multi-antenna module is applied to handheld communication equipment, fan-out type multi-antenna module includes a plurality of antennas, low dielectric constant medium base plate, medium dielectric constant medium base plate, high dielectric constant medium base plate, active high frequency chip and module interconnect structure;

the planar shape of the low-dielectric-constant dielectric substrate is a sector, the plurality of antennas are installed in the low-dielectric-constant dielectric substrate, and the plurality of antennas are distributed at intervals along the circumferential direction of the low-dielectric-constant dielectric substrate to form a distributed array antenna;

the medium dielectric constant medium substrate and the high dielectric constant medium substrate sequentially extend outwards along the radial direction of the low dielectric constant medium substrate; the dielectric constants of the low dielectric constant dielectric substrate, the medium dielectric constant dielectric substrate and the high dielectric constant dielectric substrate are sequentially increased, and the low dielectric constant dielectric substrate, the medium dielectric constant dielectric substrate and the high dielectric constant dielectric substrate are fixedly connected with each other to form a dielectric focusing lens structure together;

the active high-frequency chip is used for generating, adjusting and controlling high-frequency signals and is positioned on the outer side of the low-dielectric-constant dielectric substrate, and the active high-frequency chip is electrically connected with the array antenna through the module interconnection structure.

Further, the planar shape of the medium focusing lens structure is a sector.

Further, the planar shapes of the low-dielectric-constant dielectric substrate and the dielectric focusing lens structure are fan-shaped with a central angle of 90 degrees.

Furthermore, a plurality of through holes are formed in the medium focusing lens structure, and a metal layer covers the hole wall of each through hole, so that a metalized through hole wall is formed.

Furthermore, the plurality of via holes are arranged in multiple columns, the multiple columns of via holes are distributed at intervals along the circumferential direction of the medium focusing lens structure, and the plurality of via holes in the same column are distributed at intervals along the radial direction of the medium focusing lens structure.

On the other hand, the utility model also provides a handheld communication equipment, the inside corner position of handheld communication equipment is provided with the many antenna module of fan-out type of above-mentioned arbitrary one.

Further, the planar shape of the corner of the handheld communication device is a circular arc.

Compared with the prior art, the utility model, beneficial effect lies in:

the utility model discloses an antenna module, the plane shape of its medium focusing lens structure is fan-shaped, and the corner region with handheld terminal that can be fine matches, saves space, and the handheld terminal of being convenient for is integrated.

The utility model discloses an antenna module adopts many antennas fan-out structure, need not to adopt beam forming algorithm, and cost and power loss have been reduced has improved the efficiency of whole module, promotes handheld terminal equipment's electric energy duration. Meanwhile, the power loss can be reduced by switching the electronic switch, the efficiency is improved, and the battery endurance of the handheld terminal is prolonged.

The dielectric focusing lens structure comprises a plurality of gradient dielectric constant materials, electromagnetic waves are bound and focused by a medium with high dielectric constant when propagating in the dielectric focusing lens structure to form plane waves, so that the radiation wave beam of the antenna is narrowed, and the gain of the antenna is increased. And then the gain of the antenna structure is improved, the requirement on the output power of the active chip is reduced, and the difficulty that the gain of the synthesized antenna is low is solved.

Drawings

Fig. 1 is a schematic top view of a prior art antenna module;

FIG. 2 is a side schematic view of a prior art antenna module;

fig. 3 is a schematic diagram of a radiation beam of an antenna module in the prior art;

fig. 4 is a schematic view of a radiation beam of another antenna module in the prior art;

fig. 5 is a schematic top view of a fan-out multi-antenna module according to an embodiment of the present invention;

fig. 6 is a side view schematic diagram of the fan-out multi-antenna module of fig. 5;

fig. 7 is a schematic diagram of a radiation beam of a fan-out multi-antenna module provided by an embodiment of the present invention;

fig. 8 is a position distribution diagram of a fan-out multi-antenna module in a handheld communication device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 5 and fig. 6, a fan-out multi-antenna module 100 applied in a handheld communication device according to a preferred embodiment of the present invention is shown, which includes a plurality of antennas 1, a low-k dielectric substrate 2a, an intermediate-k dielectric substrate 2b, a high-k dielectric substrate 2c, an active high-frequency chip 3, and a module interconnection structure 4.

The planar shape of the low dielectric constant substrate 2a is a sector shape, and the plurality of antennas 1 are mounted on the low dielectric constant substrate 2 a. Specifically, the antenna 1 may be mounted on the outer surface of the low dielectric constant dielectric substrate 2a or embedded in the low dielectric constant dielectric substrate 2 a. The plurality of antennas 1 are distributed at intervals in the circumferential direction of the low dielectric constant dielectric substrate 2a, thereby forming a distributed array antenna. The array antenna is primarily used to form a beam of signal energy radiation.

The medium-permittivity dielectric substrate 2b and the high-permittivity dielectric substrate 2c extend outward in this order in the radial direction of the low-permittivity dielectric substrate 2 a. The dielectric constants of the low dielectric constant substrate 2a, the medium dielectric constant substrate 2b and the high dielectric constant substrate 2c are sequentially increased, and the three are fixedly connected to each other to form a dielectric focusing lens structure. The dielectric focusing lens structure serves as a medium for electromagnetic waves to propagate between the antenna metal structures.

In the present embodiment, the planar shapes of the low-k dielectric substrate 2a and the dielectric focusing lens structure are sectors with a central angle of 90 degrees, i.e. quarter-circle. It will be readily appreciated that the fan shape is merely exemplary of a preferred shape and that in practice other curved geometries are possible in addition to the fan shape.

The above-described active high-frequency chip 3 is used for generating, adjusting and controlling a high-frequency signal, and is located below the low-dielectric-constant dielectric substrate 2 a. The module interconnection structure 4 is mainly used for connecting the array antenna and the active high-frequency chip 3 and transmitting high-frequency signals inside the antenna module.

The antenna module of this embodiment adopts many antennas fan-out structure, need not to adopt beam forming algorithm, has reduced cost and power loss, has improved the efficiency of whole antenna module, promotes handheld terminal equipment's electric energy duration. Meanwhile, the power loss can be reduced by switching the electronic switch, the efficiency is improved, and the battery endurance of the handheld terminal is prolonged.

Referring to fig. 7, the dielectric focusing lens structure of the present embodiment includes a plurality of gradient dielectric constant materials, and when the electromagnetic wave propagates through the dielectric focusing lens structure, the electromagnetic wave is bound and focused by the medium with a high dielectric constant to form a plane wave, so that the radiation beam of the antenna is narrowed, the gain of the antenna is increased, and the directivity is enhanced. And then the gain of the antenna structure is promoted, the requirement on the output power of the active high-frequency chip 3 is reduced, and the difficulty that the gain of the synthesized antenna is low is solved.

Furthermore, the dielectric focusing lens structure is provided with a plurality of through holes 21, and the hole wall of each through hole 21 is covered with a metal layer, so as to form a metalized through hole wall. The plurality of through holes are arranged in multiple columns, the through holes 21 in the multiple columns are distributed at intervals along the circumferential direction of the medium focusing lens structure, and the through holes 21 in the same column are distributed at intervals along the radial direction of the medium focusing lens structure. Through setting up a plurality of metallized via walls, can make to form the vortex between radio frequency signal and the ground, the return circuit in space promptly lets some signals that radiate out absorbed to reduce the influence of radio frequency signal radiation to other signals in the board. On the other hand, the metalized via walls may improve the heat dissipation performance of the fan-out multi-antenna module 100.

Referring to fig. 8, the present embodiment further provides a handheld communication device 200, wherein the fan-out multi-antenna module 100 is disposed at a corner position inside the handheld communication device 200. The planar shape of the four corners of the handheld communication device 200 is a circular arc, and the fanout-type multi-antenna module 100 is installed at the four corners of the handheld communication device 200, so that a wider beam scanning coverage can be formed. Moreover, the fan-out multi-antenna module 100 can be well matched with the corner shape of the handheld terminal in shape, so that the space is saved, and the handheld terminal is convenient to integrate.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A fan-out multi-antenna module is applied to handheld communication equipment and is characterized in that the fan-out multi-antenna module comprises a plurality of antennas, a low dielectric constant dielectric substrate, an intermediate dielectric constant dielectric substrate, a high dielectric constant dielectric substrate, an active high-frequency chip and a module interconnection structure;

the active high-frequency chip is used for generating, adjusting and controlling high-frequency signals and is positioned on the outer side of the low-dielectric-constant dielectric substrate, and the active high-frequency chip is electrically connected with the distributed array antenna through the module interconnection structure.

2. The fanout multi-antenna module of claim 1, wherein the planar shape of the dielectric focusing lens structure is a sector.

3. The fanout multi-antenna module of claim 2, wherein the planar shapes of the low-k dielectric substrate and the dielectric focusing lens structure are each sector having a central angle of 90 degrees.

4. The fan-out multi-antenna module of claim 2, wherein the dielectric focusing lens structure defines a plurality of vias, each via having a metal layer on a wall thereof, thereby forming a metallized via wall.

5. The fanout multi-antenna module of claim 4, wherein the plurality of vias are arranged in a plurality of columns, the plurality of columns of vias are spaced apart along a circumferential direction of the dielectric focusing lens structure, and the plurality of vias in a same column are spaced apart along a radial direction of the dielectric focusing lens structure.

6. A handheld communication device, characterized in that corner positions inside the handheld communication device are provided with fanout multi-antenna modules as claimed in any of claims 1 to 5.

7. The handheld communication device of claim 6, wherein a planar shape of a corner of the handheld communication device is a circular arc.