阅读说明：本技术 一种天线单元及电子设备 (Antenna unit and electronic equipment ) 是由 马荣杰 邾志民 于 2019-10-31 设计创作，主要内容包括：本发明实施例提供一种天线单元及电子设备,涉及通信技术领域,以解决现有的电子设备的毫米波天线覆盖的频段较少,导致电子设备的天线性能较差的问题。该天线单元包括：第一绝缘体,设置在第一绝缘体中的M个馈电部、M个馈电臂和第一隔离体,以及设置在第一绝缘体底部的第一接地体；其中,第一隔离体围绕M个馈电臂设置、且与第一接地体电连接,M个馈电部中的每个馈电部分别与一个馈电臂的第一端电连接、且与第一接地体绝缘,M个馈电臂按照第一顺序环绕设置在第一绝缘体中,且M个馈电臂中的每个馈电臂均与第一隔离体和第一接地体耦合,M为大于1的整数。该天线单元应用于电子设备中。(The embodiment of the invention provides an antenna unit and electronic equipment, relates to the technical field of communication, and aims to solve the problem that the antenna performance of the electronic equipment is poor due to the fact that the frequency range covered by a millimeter wave antenna of the conventional electronic equipment is small. The antenna unit includes: the power supply device comprises a first insulator, M feeding parts, M feeding arms and a first isolating body, wherein the M feeding parts, the M feeding arms and the first isolating body are arranged in the first insulator; the first isolation body is arranged around the M feeding arms and electrically connected with the first grounding body, each feeding portion in the M feeding portions is electrically connected with the first end of one feeding arm and insulated from the first grounding body, the M feeding arms are arranged in the first insulation body in a surrounding mode according to a first sequence, each feeding arm in the M feeding arms is coupled with the first isolation body and the first grounding body, and M is an integer larger than 1. The antenna unit is applied to electronic equipment.)

1. An antenna unit, characterized in that the antenna unit comprises: the power supply device comprises a first insulator, M feeding parts, M feeding arms and a first isolating body, wherein the M feeding parts, the M feeding arms and the first isolating body are arranged in the first insulator, and a first grounding body is arranged at the bottom of the first insulator;

the first isolation body is arranged around the M feeding arms and electrically connected with the first grounding body, each feeding portion in the M feeding portions is electrically connected with the first end of one feeding arm and insulated from the first grounding body, the M feeding arms are arranged in the first isolation body in a surrounding mode according to a first sequence, each feeding arm in the M feeding arms is coupled with the first isolation body and the first grounding body, and M is an integer larger than 1.

2. The antenna element of claim 1, wherein said M feed arms are disposed in said first insulator in an order from a first end of the feed arm to a second end of the feed arm along an inner sidewall of said first spacer in said first order.

3. The antenna unit of claim 1, wherein the first isolator is rectangular in cross-section, the M feed arms include a first feed arm, a second feed arm, a third feed arm, and a fourth feed arm, and the first feed arm, the second feed arm, the third feed arm, and the fourth feed arm are sequentially disposed in the first isolator along an inner sidewall of the first isolator;

the first feed arm and the third feed arm are parallel to a first inner side wall of the first isolating body, the second feed arm and the fourth feed arm are parallel to a second inner side wall of the first isolating body, and the first inner side wall is perpendicular to the second inner side wall.

4. The antenna element of claim 3, wherein said M feed arms are located on a same plane.

5. The antenna unit according to any of claims 1-4, wherein the M feed portions extend through the first insulator.

6. The antenna unit according to any one of claims 1 to 4, wherein the first isolator is rectangular in cross section, the M feed portions are four feed portions, two of the four feed portions are located on one diagonal of the cross section of the first isolator, and the other two of the four feed portions are located on the other diagonal of the cross section of the first isolator.

7. An antenna unit according to claim 6, characterized in that the signal sources electrically connected to the two feeding portions on the same diagonal are equal in amplitude and 180 degrees out of phase.

8. The antenna unit of claim 1, wherein the first spacer is N metal posts, N being an integer greater than 1.

9. The antenna unit of claim 8, wherein the antenna unit further comprises a second ground body;

wherein, for each of the N metal pillars, the metal pillar passing through the second ground body is electrically connected with the first ground body.

10. The antenna element according to any of claims 1-4, wherein said M feed arms are located on said first insulator surface;

the antenna unit further includes a second insulator stacked on the first insulator, and the M feed arms are embedded in the second insulator.

11. An electronic device, characterized in that the electronic device comprises at least one antenna unit according to any of claims 1-10.

12. The electronic device of claim 11, wherein at least one first recess is disposed in a housing of the electronic device, and wherein at least one antenna element is disposed in each of the at least one first recess.

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to an antenna unit and electronic equipment.

Background

With the development of the fifth Generation mobile communication (5th-Generation, 5G) system and the wide application of electronic devices, the millimeter wave antenna is gradually applied to various electronic devices to meet the increasing use requirements of users.

At present, millimeter wave antennas in electronic devices are mainly implemented by using an Antenna In Package (AiP) technology. For example, as shown in fig. 1, an array antenna 11 with an operating wavelength of millimeter waves, a Radio Frequency Integrated Circuit (RFIC) 12, a Power Management Integrated Circuit (PMIC) 13 and a connector 14 may be packaged into a module 10 by AiP technology, where the module 10 may be referred to as a millimeter wave antenna module. The antenna in the array antenna may be a patch antenna, a yagi-uda antenna, or a dipole antenna.

However, since the antennas in the array antenna are usually narrow-band antennas (such as the patch antennas listed above), the coverage frequency range of each antenna is limited, but the millimeter wave frequency range planned in the 5G system is usually many, for example, n257(26.5-29.5GHz) frequency range mainly based on 28GHz and n260(37.0-40.0GHz) frequency range mainly based on 39GHz, and the like, so that the conventional millimeter wave antenna module may not cover the mainstream millimeter wave frequency range planned in the 5G system, thereby resulting in poor antenna performance of the electronic device.

Disclosure of Invention

The embodiment of the invention provides an antenna unit and electronic equipment, and aims to solve the problem that the antenna performance of the electronic equipment is poor due to the fact that the frequency range covered by a millimeter wave antenna of the conventional electronic equipment is small.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present invention provides an antenna unit, where the antenna unit includes: the power supply device comprises a first insulator, M feeding parts, M feeding arms and a first isolating body, wherein the M feeding parts, the M feeding arms and the first isolating body are arranged in the first insulator; the first isolation body is arranged around the M feeding arms and electrically connected with the first grounding body, each feeding portion in the M feeding portions is electrically connected with the first end of one feeding arm and insulated from the first grounding body, the M feeding arms are arranged in the first insulation body in a surrounding mode according to a first sequence, each feeding arm in the M feeding arms is coupled with the first isolation body and the first grounding body, and M is an integer larger than 1.

In a second aspect, an embodiment of the present invention provides an electronic device, where the electronic device includes the antenna unit in the first aspect.

In an embodiment of the present invention, the antenna unit may include: the power supply device comprises a first insulator, M feeding parts, M feeding arms and a first isolating body, wherein the M feeding parts, the M feeding arms and the first isolating body are arranged in the first insulator; the first isolation body is arranged around the M feeding arms and electrically connected with the first grounding body, each feeding portion in the M feeding portions is electrically connected with the first end of one feeding arm and insulated from the first grounding body, the M feeding arms are arranged in the first insulation body in a surrounding mode according to a first sequence, each feeding arm in the M feeding arms is coupled with the first isolation body and the first grounding body, and M is an integer larger than 1. By the scheme, the first isolating body is electrically connected with the first grounding body, so that the first isolating body and the first grounding body can form a metal cavity, and the feeding arm can be coupled with the first isolating body and the first grounding isolating body, namely the feeding arm can be coupled with the metal cavity formed by the first isolating body and the first grounding body. Therefore, under the condition that the feed arm receives the alternating current signal, the feed arm can be coupled with the metal cavity, so that the metal cavity can generate induced current, and the feed arm and the metal cavity can radiate electromagnetic waves with certain frequency; moreover, since there may be a plurality of current paths of the induced current generated by coupling the feeding arm with the metal cavity (for example, a current path from the feeding arm to the metal cavity and then to the feeding arm, a current path formed on the metal cavity, etc.), there may also be a plurality of frequencies of the electromagnetic wave generated by the current on the feeding arm via the metal cavity, so that the antenna unit may obtain a wider bandwidth, thereby increasing the frequency band covered by the antenna unit. And because the M feeding arms are arranged in the first insulator in a surrounding manner according to the first sequence, the distance between each feeding arm in the M feeding arms is larger, so that the interference between the M feeding arms can be reduced, the isolation of the port of the antenna unit can be improved, and the performance of the antenna unit can be further improved.

Drawings

Fig. 1 is a schematic structural diagram of a conventional millimeter wave packaged antenna according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an antenna unit according to an embodiment of the present invention;

fig. 3 is a reflection coefficient diagram of an antenna unit according to an embodiment of the present invention;

fig. 4 is a top view of an antenna unit according to an embodiment of the present invention;

fig. 5 is a transmission coefficient diagram of an antenna unit according to an embodiment of the present invention;

fig. 6 is a second schematic structural diagram of an antenna unit according to an embodiment of the present invention;

fig. 7 is a third schematic structural diagram of an antenna unit according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present invention;

fig. 9 is one of the radiation patterns of the antenna unit provided by the embodiment of the present invention;

fig. 10 is a second radiation pattern of the antenna unit according to the second embodiment of the present invention;

fig. 11 is a left side view of an electronic device provided in an embodiment of the invention.

Description of reference numerals: 10-millimeter wave antenna module; 11-array antenna with millimeter wave working wavelength; 12-RFIC; 13-PMIC; 14-a connector; 20-an antenna element; 201-a feeding part; 202-feeding arm; 202a — a first end of the feed arm; 203-a first spacer; 204 — first ground body; 205 — a second ground body; 206 — a first insulator; 207 — a second insulator; s1 — a first inner side wall; s2-a second inner side wall; l1 — first diagonal; l2 — second diagonal; 3-an electronic device; 30-a housing; 31 — a first frame; 32-a second frame; 33-third frame; 34-fourth frame; 35-a floor; 36 — a first antenna; 37-first groove.

In the embodiment of the present invention, coordinate axes in the coordinate system shown in the drawings are orthogonal to each other.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The term "and/or" herein is an association relationship describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. The symbol "/" herein denotes a relationship in which the associated object is or, for example, a/B denotes a or B.