US-12627077-B2 - Antenna module with different type antenna and electronic device employing antenna

US12627077B2US 12627077 B2US12627077 B2US 12627077B2US-12627077-B2

Abstract

An antenna module using two antennas with different radiation mechanisms for signal transmitting and receiving includes a substrate, a first antenna, and a second antenna. A first surface of the substrate includes a first clearance area and a second clearance area, the first clearance area is located in a first corner area of the first surface, and the second clearance area is located in a second corner area of the first surface. The first antenna includes a first radiation portion located in the first clearance area, and the second antenna includes a second radiation portion located in the second clearance area. An antenna type of the first antenna is different from an antenna type of the second antenna, and the first antenna and the second antenna are configured to transmit and receive signals of the same frequency. An electronic device is also disclosed.

Inventors

CHING-LING WU
HSIANG-NENG WEN
Chih-Wei Liao
Yung-Yu Tai
Ping-Hsun Ho

Assignees

Futaijing Precision Electronics (Yantai) Co., Ltd.
HON HAI PRECISION INDUSTRY CO., LTD.

Dates

Publication Date: 20260512
Application Date: 20240202
Priority Date: 20231207

Claims (18)

1 . An antenna module, comprising: a substrate, a first surface of the substrate comprising a first clearance area and a second clearance area, wherein the first clearance area is located in a first corner area of the first surface, and the second clearance area is located in a second corner area of the first surface; a first antenna arranged on the substrate, the first antenna comprising a first radiation portion located in the first clearance area; and a second antenna arranged on the substrate, the second antenna comprising a second radiation portion located in the second clearance area; wherein an antenna type of the first antenna is different from an antenna type of the second antenna, and the first antenna and the second antenna are configured to transmit and receive first signals of the same frequency.
2 . The antenna module of claim 1 , wherein the first antenna is an inverted-F antenna, and the second antenna is a slot antenna.
3 . The antenna module of claim 1 , wherein the first radiation portion comprises a first strip portion, a second strip portion, and a third strip portion, a first end of the first strip portion is configured for feeding second signals, a second end of the first strip portion is coupled to the third strip portion, a first end of the second strip portion is coupled to the first strip portion, the first strip portion and the second strip portion are both long strip portions, the third strip portion is an L-shaped portion, and the first strip portion and a long side of the third strip portion are form a T-shaped portion.
4 . The antenna module of claim 3 , wherein the first surface of the substrate further comprises a metal layer, the metal layer comprises a base portion and a connecting portion, the connecting portion is an L-shaped portion, the connecting portion is located in the first clearance area, and a second end of the second strip portion is coupled to an end of the connecting portion.
5 . The antenna module of claim 1 , wherein the second radiation portion comprises a first rectangular portion, a trapezoidal portion, and a second rectangular portion, the trapezoidal portion is located between the first rectangular portion and the second rectangular portion, an upper bottom of the trapezoidal portion is a long side of the second rectangular portion, and a lower bottom of the trapezoidal portion is a part of a long side of the first rectangular portion.
6 . The antenna module of claim 5 , wherein the trapezoidal portion comprises two right trapezoidal portions, straight waists of the two right trapezoidal portions are connected, and inclination angles of oblique waists of the two right trapezoidal portions are different.
7 . The antenna module of claim 1 , wherein the substrate further comprises a second surface opposite to the first surface, the second surface of the substrate comprises a third clearance area and a fourth clearance area, a projection of the first radiation portion on the second surface falls in the third clearance area, and a projection of the fourth clearance area on the first surface falls in the second clearance area.
8 . The antenna module of claim 7 , wherein the second clearance area is arranged opposite to the fourth clearance area, the fourth clearance area is a rectangular groove arranged on the second surface, and the projection of the fourth clearance area on the first surface overlaps with the second radiating portion.
9 . The antenna module of claim 7 , wherein the first clearance area is arranged opposite to the third clearance area, the first clearance area and the third clearance area have the same length and width.
10 . An electronic device, comprising: a signal process module; and an antenna module, coupled to the signal process module, wherein the antenna module comprises: a substrate, a first surface of the substrate comprises a first clearance area and a second clearance area, the first clearance area is located in a first corner area of the first surface, and the second clearance area is located in a second corner area of the first surface; a first antenna arranged on the substrate, the first antenna comprises a first radiation portion located in the first clearance area; and a second antenna arranged on the substrate, the second antenna comprises a second radiation portion located in the second clearance area; an antenna type of the first antenna is different from an antenna type of the second antenna, and the first antenna and the second antenna are configured to transmit and receive first signals of the same frequency.
11 . The electronic device of claim 10 , wherein the first antenna is an inverted-F antenna, and the second antenna is a slot antenna.
12 . The electronic device of claim 10 , wherein the first radiation portion comprises a first strip portion, a second strip portion, and a third strip portion, a first end of the first strip portion is configured for feeding second signals, a second end of the first strip portion is coupled to the third strip portion, a first end of the second strip portion is coupled to the first strip portion, the first strip portion and the second strip portion are both long strip portions, the third strip portion is an L-shaped portion, and the first strip portion and a long side of the third strip portion are form a T-shaped portion.
13 . The electronic device of claim 12 , wherein the first surface of the substrate further comprises a metal layer, the metal layer comprises a base portion and a connecting portion, the connecting portion is an L-shaped portion, the connecting portion is located in the first clearance area, and a second end of the second strip portion is coupled to an end of the connecting portion.
14 . The electronic device of claim 10 , wherein the second radiation portion comprises a first rectangular portion, a trapezoidal portion, and a second rectangular portion, the trapezoidal portion is located between the first rectangular portion and the second rectangular portion, an upper bottom of the trapezoidal portion is a long side of the second rectangular portion, and a lower bottom of the trapezoidal portion is a part of a long side of the first rectangular portion.
15 . The electronic device of claim 14 , wherein the trapezoidal portion comprises two right trapezoidal portions, straight waists of the two right trapezoidal portions are connected, and inclination angles of oblique waists of the two right trapezoidal portions are different.
16 . The electronic device of claim 10 , wherein the substrate further comprises a second surface opposite to the first surface, the second surface of the substrate comprises a third clearance area and a fourth clearance area, a projection of the first radiation portion on the second surface falls in the third clearance area, and a projection of the fourth clearance area on the first surface falls in the second clearance area.
17 . The electronic device of claim 16 , wherein the second clearance area is arranged opposite to the fourth clearance area, the fourth clearance area is a rectangular groove arranged on the second surface, and the projection of the fourth clearance area on the first surface overlaps with the second radiating portion.
18 . The electronic device of claim 16 , wherein the first clearance area is arranged opposite to the third clearance area, the first clearance area and the third clearance area have the same length and width.

Description

TECHNICAL FIELD The subject matter herein generally relates to antenna structures. BACKGROUND With the continuous development of wireless communication technology, a demand for antennas for wireless communication is increasing. Multi-input multi-output (MIMO) antenna system includes two or more antennas, compared with the traditional single antenna operation system, MIMO antenna system has a characteristics of improving a transmission speed, a receiving range, and a credibility of the system. In MIMO antenna system, in order to decrease a coupling effect between the antennas, the conventional practice is mostly to increase the distance between the antennas to increase the isolation between the antennas, so as to reduce the coupling effect. However, with a development trend of a miniaturization of electronic equipment, an internal space of the electronic equipment is limited, resulting in the limited distance between the antennas, in order to meet isolation requirements between antennas, there is room for improvement. BRIEF DESCRIPTION OF THE DRAWINGS Implementations of the present disclosure will now be described, by way of embodiments, with reference to the attached figures. FIG. 1 is a front structure diagram illustrating an antenna module according to an embodiment of the present disclosure. FIG. 2 is a structure diagram illustrating a first radiation portion according to an embodiment of the present disclosure. FIG. 3 is a structure diagram illustrating a second radiation portion according to an embodiment of the present disclosure. FIG. 4 is a back structure diagram illustrating the antenna module according to an embodiment of the present disclosure. FIG. 5 is a stereo structure diagram illustrating the antenna module according to an embodiment of the present disclosure. FIG. 6 is a graph diagram illustrating a voltage standing wave ratio of a first antenna according to an embodiment of the present disclosure. FIG. 7 is a graph diagram illustrating a voltage standing wave ratio of a second antenna according to an embodiment of the present disclosure. FIG. 8 is a graph diagram illustrating an isolation degree between the first antenna and the second antenna according to an embodiment of the present disclosure FIG. 9 is a block diagram illustrating an electronic device according to an embodiment of the present disclosure. DETAILED DESCRIPTION It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean “at least one”. Several definitions that apply throughout this disclosure will now be presented. The term “coupled” is defined as connected, whether directly or indirectly through intervening components, and is not necessarily limited to physical connections. The connection can be such that the objects are permanently connected or releasably connected. The term “comprising,” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series, and the like. FIG. 1 illustrates one exemplary embodiment of an antenna module 1. The antenna module 1 includes a substrate 10, a first antenna 11, and a second antenna 12. The first antenna 11 and the second antenna 12 are arranged on the substrate 10. The first antenna 11 and the second antenna 12 may be antennas printed on the substrate 10. In one embodiment, the substrate 10 include a first surface 101 and a second surface 102 (as shown in FIG. 4). The first surface 101 is arranged opposite to the second surface 102. The first surface 101 includes a first clearance area 1011 and a second clearance area 1012, the first clearance area 1011 is located in a first corner area of the first surface 101, and the second clearance area 1012 is located in a second corner area of the first surface 101. In one embodiment, clearance areas can be areas on the substrate 10 that are not poured copper, and corner areas can be areas on the substrate 10 that are enclosed by two adjac