WO2020133496A1

WO2020133496A1 - Packaged antenna module and electronic device

Info

Publication number: WO2020133496A1
Application number: PCT/CN2018/125816
Authority: WO
Inventors: 马荣杰; 邾志民; 赵伟
Original assignee: 瑞声科技（南京）有限公司
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2020-07-02

Abstract

Provided by the present invention are a packaged antenna module and an electronic device. The packaged antenna module comprises a substrate, an antenna module and an integrated circuit chip arranged at two opposite sides of the substrate, and a circuit provided in the substrate to connect the antenna module and the integrated circuit chip. The antenna module comprises a plurality of antenna units, the plurality of antenna units are arranged in the same form, and the arrangement direction of the plurality of antenna units is the same as the current direction of the antenna units. The packaged antenna module and the electronic device of the present invention may reduce the coupling between the antenna units, improve the isolation between the antenna units, and have better space coverage.

Description

Packaging antenna module and electronic equipment

【Technical field】

The invention relates to the field of communication, in particular to a packaged antenna module and electronic equipment.

【Background technique】

As 5G is the focus of research and development in the global industry, developing 5G technology to formulate 5G standards has become an industry consensus. At the 22nd meeting of ITU-RWP5D held in June 2015, the International Telecommunication Union ITU identified three main application scenarios of 5G: enhanced mobile broadband, large-scale machine communications, and high-reliability and low-latency communications. These three application scenarios correspond to different key indicators, in which the peak user speed in the enhanced mobile bandwidth scenario is 20Gbps, and the minimum user experience rate is 100Mbps.

The abundant bandwidth resources of the millimeter wave frequency band in the prior art provide a guarantee for the high-speed transmission rate, but due to the severe space loss of electromagnetic waves in this frequency band, the wireless communication system using the millimeter wave frequency band needs to adopt a phased array architecture.

For the 5G millimeter wave frequency band, 3GPP has proposed several standard working frequency bands of n257 (26.5GHz-29.5GHz), n258 (24.25-27.5GHz), n260 (37-40GHZ), n261 (27.5-28.35GHZ). With limited space, it is a challenge to achieve better spatial coverage and better isolation in a fixed stacked structure.

Therefore, it is necessary to provide a packaged antenna module with better isolation and better space coverage.

[Invention content]

An object of the present invention is to provide a packaged antenna module and electronic equipment.

The technical solution of the present invention is as follows:

An encapsulated antenna module includes a substrate, antenna modules and integrated circuit chips provided on opposite sides of the substrate, and a circuit provided in the substrate to connect the antenna module and the integrated circuit chip, the antenna module A plurality of antenna elements are included, and a plurality of the antenna elements are arranged in the same form, and the arrangement direction of the plurality of antenna elements is the same as the current direction of the antenna elements.

Preferably, the antenna unit includes a first side, a second side, a third side, a fourth side, a feeder and a feeder connected to the feeder, the first side and the receiver The second side is oppositely arranged, the third side and the fourth side are oppositely arranged, and the third side and the fourth side are both connected to the first side and the first side Between the two sides, the first side and the second side are sequentially arranged along the direction of the current; the feeder is connected to the first side, the second side, the first Of the distances between the three sides and the fourth side, the distance between the power feeder and the second side is the largest; one of the at least two antenna elements with the same structure is the second The side is adjacent to the first side of the other antenna unit.

Preferably, the distance between the power feeding part and the third side and the distance between the power feeding part and the fourth side are equal.

Preferably, the feeder is arranged parallel to the first side.

Preferably, the two antenna units are arranged from left to right, and the feeder is provided on the left side of the wire unit.

Preferably, the number of the antenna units is four.

Preferably, the antenna unit is square.

The invention also provides an electronic device, which includes a housing and the packaged antenna module. The packaged antenna module is disposed on the housing.

Preferably, the housing includes a frame, and the second side of one of the antenna units in the packaged antenna module is close to the frame, and an injection part is provided on the frame for the packaged antenna module Send and receive signals.

Preferably, the injection part is made of non-metallic material.

The beneficial effect of the present invention is that: the packaged antenna module provided by the present invention is arranged in the same form by several antenna units, and the arrangement direction of the antenna units is the same as the current direction of the antenna units, thereby reducing the coupling between the antenna units, Improve the isolation between the antenna elements, and have better space coverage.

[Description of the drawings]

FIG. 1 is a schematic diagram of an electronic device provided by an embodiment of the present invention;

2 is a schematic diagram of a packaged antenna module provided by an embodiment of the present invention;

3 is a schematic diagram of an antenna unit provided by an embodiment of the present invention;

4 is a schematic diagram of a feeding structure of an antenna provided by an embodiment of the present invention;

5(a) is a radiation pattern of a phase shift of 45° when the packaged antenna module provided by an embodiment of the present invention is in the 28 GHz frequency band;

5(b) is a radiation pattern with a phase shift of 0° when the packaged antenna module provided by the present invention is in the 28GHz frequency band;

5(c) is a radiation pattern of a phase shift of -45° when the packaged antenna module provided by the present invention is in the 28GHz frequency band;

6 is a S-parameter curve diagram of a packaged antenna module provided by an embodiment of the present invention;

7 is a graph showing the coverage efficiency of the packaged antenna module in the 28 GHz frequency band provided by the embodiment of the present invention.

【detailed description】

The present invention will be further described below with reference to the drawings and embodiments.

As shown in FIG. 1, the packaged antenna module provided by the embodiment of the present invention is applied to electronic devices, such as mobile phones. The electronic device includes a packaged antenna module 100 and a housing 200. The packaged antenna module 100 is disposed in the housing 200 and is used to transmit and receive signals.

As shown in FIGS. 2-4, the packaged antenna module 100 includes a substrate 20, antenna modules 10 and integrated circuit chips 30 provided on opposite sides of the substrate 20, and a circuit provided in the substrate 20 to connect the antenna module 10 and the integrated circuit chip 30 40. The antenna module 10 includes a plurality of antenna units 11, the plurality of antenna units 11 are arranged in the same form, and the arrangement direction of the plurality of antenna units 11 is the same as the current direction of the antenna unit 11.

Since the arrangement direction of the antenna elements 11 is the same as the current direction of the antenna elements 11, the coupling between the antenna elements 11 is reduced, the isolation between the antenna elements 11 is improved, and the space coverage is better.

In a preferred embodiment of the present invention, the antenna unit 11 includes a first side 112, a second side 113, a third side 114, a fourth side 115, a feeder 111, and a power supply 111 connected to the feeder 111 Feeder 116. The first side 112 and the second side 113 are oppositely arranged, the third side 114 and the fourth side 115 are oppositely arranged, and the third side 114 and the fourth side 115 are both connected to the first side 112 and the second Between sides 113. The first side 112 and the second side 113 are sequentially arranged along the current direction. Understandably, when the antenna units 11 are arranged in the same form, the arrangement direction of the power feeding sections 111 in the antenna unit 11 and the arrangement direction of the antenna unit 11 are the same. Among the distances between the power feeding section 111 and the first side 112, the second side 113, the third side 114, and the fourth side 115, the distance between the power feeding section 111 and the second side 113 is the largest. The second side 113 of one of the at least two antenna elements 11 is adjacent to the first side 112 of the other antenna element 11. The current flows in a direction away from the power feeder 111 and flows from the first side 112 to the second side 113.

In a preferred embodiment of the present invention, the distance between the power feeding part 111 and the third side 114 and the distance between the power feeding part 1111 and the fourth side 115 are equal.

In a preferred embodiment of the present invention, the feed line 116 is arranged parallel to the first side 112.

In a preferred embodiment of the present invention, the two antenna units 11 are arranged from left to right, and the feeder 111 is located on the left side of the wire unit 11. That is, the power feeding section 111 is located to the left of the center of each antenna element 11. The current direction of the packaged antenna module 1 flows from left to right.

It should be noted that the two antenna units 11 may also be arranged from right to left, the corresponding power feeder 111 is located at the right of the center of the antenna unit 11, and the current flow direction is from right to left. Similarly, the two antenna units 11 can also be arranged from top to bottom, the corresponding feeder 111 is located above the center of the antenna unit 11, and the current flow direction is from top to bottom; the two antenna units 11 can also be from bottom to top Arranged, the corresponding power feeder 111 is located at a position where the center of the antenna unit 11 is biased downward, and the current flows from bottom to top.

As shown in FIG. 1, the housing 200 includes a frame 20 provided with an injection portion 21. The second side 113 of one antenna unit 11 in the packaged antenna module 1 is close to the frame 20. For example, if the current flows from left to right, the frame 20 is located on the right side of the packaged antenna module 1. The frame 20 is provided with an emitting portion 21 for the packaged antenna module 1 to send and receive signals. Preferably, the injection portion 21 is made of a non-metallic material. If the frame 20 is a metal frame, the injection portion 21 is an opening in the metal frame 20 for the packaged antenna module 1 to send and receive signals.

In a preferred embodiment of the present invention, the number of antenna units 11 is four. Among them, the four antenna elements 11 are linearly arranged in the same form.

As shown in FIG. 2, the antenna unit 11 further includes a radiation patch 117 connected to the feeder 111, the antenna unit 11 is square, and the radiation patch 116 is also square.

As shown in FIGS. 5(a)-5(c), a schematic diagram of the phased array scanning performance of the packaged antenna module provided by an embodiment of the present invention is a 28GHz array scanning 45°, 0°, and -45° radiation patterns, respectively. It can be seen that the scanning performance of the packaged antenna module provided by the embodiment of the present invention is good.

As shown in FIG. 6, an S-parameter curve diagram of a packaged antenna module provided by an embodiment of the present invention, where S11 is a reflection coefficient and S12 is an isolation. It can be seen that the packaged antenna module provided by the embodiment of the present invention has better isolation.

As shown in FIG. 7, the coverage efficiency graph of the packaged antenna module provided by the embodiment of the present invention, for 50% coverage, is reduced by 7.7 dB compared to the peak gain. It can be seen that the packaged antenna module provided by the embodiment of the present invention The group has good space coverage.

The packaged antenna module provided by the present invention arranges the two antenna units 11 in the same form, and the arrangement direction of the two antenna units 11 is the same as the current direction, thereby reducing the coupling between the antenna units 11 and improving the antenna unit 11 isolation, and has good space coverage.

The above are only the embodiments of the present invention. It should be pointed out that those of ordinary skill in the art can make improvements without departing from the inventive concept of the present invention, but these belong to the present invention. Scope of protection.

Claims

An encapsulated antenna module, characterized by comprising a substrate, antenna modules and integrated circuit chips provided on opposite sides of the substrate, and a circuit provided in the substrate to connect the antenna module and the integrated circuit chip, The antenna module includes a plurality of antenna units, the plurality of antenna units are arranged in the same form, and the arrangement direction of the plurality of antenna units is the same as the current direction of the antenna unit.
The packaged antenna module according to claim 1, wherein the antenna unit includes a first side, a second side, a third side, a fourth side, a feeder, and the feeder For the feeder connected to each other, the first side and the second side are oppositely arranged, the third side and the fourth side are oppositely arranged, the third side and the fourth side Are both connected between the first side and the second side, the first side and the second side are arranged in sequence along the current direction; the feeder and the first side Of the distances between the side, the second side, the third side, and the fourth side, the distance between the power feeder and the second side is the largest; the at least two structures are the same The second side of one of the antenna elements is adjacent to the first side of the other antenna element.
The packaged antenna module according to claim 2, wherein the distance between the feeder and the third side and the distance between the feeder and the fourth side are equal.
The packaged antenna module according to claim 3, wherein the feeder is parallel to the first side.
The packaged antenna module according to claim 1, wherein the two antenna units are arranged from left to right, and the power feeding section is provided on the left side of the wire unit.
The packaged antenna module according to claim 1, wherein the number of the antenna units is four.
The packaged antenna module according to claim 1, wherein the antenna unit is square.
An electronic device, characterized by comprising a housing and the packaged antenna module according to any one of claims 1-7, wherein the packaged antenna module is disposed in the housing.
The electronic device according to claim 8, wherein the housing includes a frame, and the second side of one of the antenna units in the packaged antenna module is close to the frame, and the frame is provided with The injection part is used for the packaged antenna module to send and receive signals.
The electronic device according to claim 9, wherein the injection portion is made of a non-metallic material.