Integrated low-profile 5G antenna

Abstract

The utility model discloses an integrated low-profile 5G antenna. The integrated low-profile 5G antenna comprises a housing and an antenna end installed in the housing. The shell comprises an upper shell and a lower shell, the upper shell and the lower shell are fixedly connected, and the antenna end is located in a space formed by the upper shell and the lower shell; the antenna end comprises a circuit board and four groups of antennas which are installed on the circuit board and used for receiving / sending 5G signals, the four groups of antennas are respectively a Main antenna, an Aux antenna, a first Mimo antenna and a second Mimo antenna, the Main antenna and the Aux antenna are vertically arranged on a plane where the circuit board is located, and the Main antenna and the Aux antenna are in a wavy sawtooth shape. The antenna is small in size and low in profile, is convenient to install in a vehicle body, covers a 5G full frequency band, has good isolation, and can provide different antenna combinations according to requirements.

Description

Technical Field

[0001] The utility model belongs to the technical field of antennas, and in particular relates to an integrated low-profile 5G antenna. Background Art

[0002] The blueprint for 5G networks is for data rates 100 times faster than 4G, reaching 10Gbit / s, with latency less than 1ms, supporting a high density of over 100 billion connections and a capacity 1,000 times higher than 4G. The trend is to integrate 5G antennas into vehicles to enable applications such as connected vehicles and autonomous driving. With the advancement of automotive intelligence, automotive antennas are no longer limited to wireless LAN, mobile networks, and positioning; they are also adding Bluetooth antennas to enable features like keyless entry and IoT connectivity. The technology in domestically produced vehicles is becoming increasingly mature. Cars are evolving into intelligent terminals, rather than simply vehicles. This requires the integration of an increasing number of antennas to capture vehicle, road, communication, positioning, environmental perception, and information processing information.

[0003] New technologies place new demands on automotive electronics. 5G / MIMO technology employs multiple antennas at both the transmitter and receiver ends, exponentially increasing system transmission rates and quality without increasing bandwidth. Multi-antenna technology, as a key approach to improving communication systems, has become a research hotspot in 5G wireless communications. To improve data transmission rates and quality, 2.5G T-Box antennas often require more than four 5G antenna groups. This increased number of antennas leads to congestion and poor isolation within the T-Box, causing not only signal interference but also the following issues:

[0004] 1. In the past, antenna miniaturization was mainly targeted at a single antenna. However, with the application of MIMO antenna systems, the miniaturization of a single antenna cannot meet the size requirements of the entire antenna system.

[0005] Currently, shark fin antennas are the most common automotive antennas. However, with the advancement of automotive technology, changes in vehicle aesthetics, and the increasing number of communication antennas, traditional shark fin antennas are no longer able to accommodate all antennas and do not conform to the minimalist aesthetic. Therefore, integration within the vehicle body has become a key requirement for automotive antennas.

[0006] 3. With the development of communication technology, the widespread popularization of 5G communication technology has become a trend. The high transmission rate it provides is the key to realizing the interconnection of intelligent terminal devices and intelligent driving.

[0007] 4. In the past, 5G antennas that could cover low frequencies up to 700MHz were large in size, especially MIMO antenna systems that included multiple 5G antennas. Summary of the Invention

[0008] The main technical problems solved by the present invention are the signal interference of the current 5G antenna box, the large design space occupied and the inability to take into account all frequency bands.

[0009] In order to solve the above technical problems, a technical solution adopted by the present invention is:

[0010] An integrated low-profile 5G antenna comprises a housing and an antenna terminal mounted in the housing;

[0011] The housing comprises an upper shell and a lower shell, the upper shell and the lower shell are fixedly connected, and the antenna end is located in a space formed by the upper shell and the lower shell;

[0012] The antenna end includes a circuit board and four groups of antennas installed on the circuit board for receiving / sending 5G signals. The four groups of antennas are respectively a Main antenna, an Aux antenna, a first Mimo antenna, and a second Mimo antenna. The Main antenna and the Aux antenna are arranged vertically on the plane where the circuit board is located. The Main antenna and the Aux antenna are arranged crosswise to form four partitions. The Main antenna and the Aux antenna are wavy and serrated. The first Mimo antenna and the second Mimo antenna are respectively arranged in any two of the partitions.

[0013] Furthermore, the intersection angle is 0 to 90 degrees.

[0014] Furthermore, the Main antenna and Aux antenna are Sub6GHz antennas, and their operating frequency ranges include: 3300MHz~4200MHz, 4400MHz~5000MHz, 5150MHz~5925MHz, 700MHz~960MHz, 1452MHz~1496MHz, 1710MHz~2170MHz, and 2300MHz~2690MHz;

[0015] The operating frequency ranges of the first Mimo antenna and the second Mimo antenna include: 1452MHz~1496MHz; 1710MHz~2690MHz, 3300MHz~4200MHz; 4400MHz~5000MHz; 5150MHz~5925MHz.

[0016] Furthermore, one end of the Main antenna and the Aux antenna is connected to the circuit board base layer, and the other end is connected to the ground layer through a feeder link.

[0017] Furthermore, one end of the first Mimo antenna and the second Mimo antenna is connected to the circuit board base layer, and the other end is connected to the ground layer through a feeder link.

[0018] Beneficial effects of the utility model:

[0019] 1. The utility model has a small size and a low profile, which is convenient for installation in the vehicle body, saving procurement and use costs. It can be installed inside the car without affecting the appearance of the entire vehicle. It can be installed near the front dashboard of the car, as well as other signal-free areas in the car without metal shielding.

[0020] 2. The antenna of this utility model is cleverly arranged, integrating four antennas in a limited space, covering the entire 5G frequency band and having good isolation.

[0021] 3. The utility model provides a modular vehicle-mounted 5G MIMO antenna solution, which can provide different antenna combinations according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the antenna arrangement structure of the utility model;

[0024] Figure 3 This is the first slot (step 1) diagram of the utility model;

[0025] Figure 4 This is the second slot (step 2) diagram of the present utility model;

[0026] Figure 5 This is the third slot (step 3) diagram of the present utility model;

[0027] Figure 6 It is a frequency diagram of different slots of the utility model;

[0028] Figure 7 is the current intensity distribution diagram of this embodiment;

[0029] Figure 8 is the current vector distribution diagram of this embodiment;

[0030] Figure 9 is a standing wave ratio diagram of this embodiment;

[0031] Figure 10 This is the 3D Gain Pattern (3D directional gain) diagram of the main antenna;

[0032] Figure 11 This is the Aux antenna 3D Gain Pattern (3D directional gain) diagram;

[0033] Figure 12 This is the 3D Gain Pattern (3D directional gain) diagram of the first Mimo antenna;

[0034] Figure 13 This is the 3D Gain Pattern (3D directional gain) of the second Mimo antenna;

[0035] Figure 14 It is the 2D Gain Pattern (2D directional gain) diagram of the main antenna and Aux antenna in the 0° direction;

[0036] Figure 15 It is the 2D Gain Pattern (2D directional gain) diagram of the main antenna and the Aux antenna at 90° direction;

[0037] Figure 16 It is the 2D GainPattern (2D directional gain) diagram of the first Mimo antenna and the second Mimo antenna at 0° direction;

[0038] Figure 17 It is the 2D GainPattern (2D directional gain) diagram of the first Mimo antenna and the second Mimo antenna at 90° direction;

[0039] The parts in the accompanying drawings are marked as follows:

[0040] 1. Shell; 11. Upper shell; 12. Lower shell; 2. Antenna end; 21. Main antenna; 22. Aux antenna; 23. First Mimo antenna; 24. Second Mimo antenna; 25. Circuit board; 251. Ground layer; 252. Base layer. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0042] Example:

[0043] like Figures 1 to 2 As shown, an integrated low-profile 5G antenna includes a housing 1 and an antenna end 2 installed in the housing 1;

[0044] The housing 1 includes an upper shell 11 and a lower shell 12, which are fixedly connected. The antenna end 2 is located in the space formed by the upper shell 11 and the lower shell 12. Specifically, one end of the main antenna 21 and the auxiliary antenna 22 are connected to the base layer 252 of the circuit board 25, and the other end is connected to the ground layer 251 via a feeder link. The first Mimo antenna 23 and the second Mimo antenna 24 are connected to the base layer 252 of the circuit board 25 at one end, and the other end is connected to the ground layer 251 via a feeder link.

[0045] The antenna end 2 includes a circuit board 25 and four groups of antennas mounted on the circuit board 25 for receiving / sending 5G signals. The four groups of antennas are respectively a main antenna 21, an auxiliary antenna 22, a first Mimo antenna 23, and a second Mimo antenna 24. The main antenna 21 and the auxiliary antenna 22 are arranged perpendicular to the plane where the circuit board 25 is located. The main antenna 21 and the auxiliary antenna 22 are arranged crosswise to form four partitions. The main antenna 21 and the auxiliary antenna 22 are wavy and sawtooth-shaped. The first Mimo antenna 23 and the second Mimo antenna 24 are respectively arranged in any two of the partitions. Specifically, the crossing angle is 0 to 90 degrees. Specifically, the Main antenna 21 and the Aux antenna 22 are Sub6GHz antennas, and their operating frequency ranges include: 3300MHz~4200MHz, 4400MHz~5000MHz, 5150MHz~5925MHz, 700MHz~960MHz, 1452MHz~1496MHz, 1710MHz~2170MHz, and 2300MHz~2690MHz;

[0046] The operating frequency ranges of the first Mimo antenna 23 and the second Mimo antenna 24 include: 1452MHz~1496MHz; 1710MHz~2690MHz, 3300MHz~4200MHz; 4400MHz~5000MHz; 5150MHz~5925MHz.

[0047] The connection between the Main antenna 21 and the Aux antenna 22 and the ground 251 of the present invention can have three types of slots, namely zero slot, half slot, and full slot. Figures 3-5 As shown, test its frequency, as shown in the attached Figure 6 As shown, zero slot is step 1, half slot is step 2, and full slot is step 3. It can be seen that full slot has the best effect, and this embodiment adopts full slot.

[0048] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. An integrated low-profile 5G antenna, characterized by: It comprises a housing (1) and an antenna end (2) installed in the housing (1); The housing (1) comprises an upper shell (11) and a lower shell (12), the upper shell (11) and the lower shell (12) are fixedly connected, and the antenna end (2) is located in a space formed by the upper shell (11) and the lower shell (12); The antenna end (2) includes a circuit board (25) and four groups of antennas installed on the circuit board (25) for receiving / sending 5G signals. The four groups of antennas are respectively a Main antenna (21), an Aux antenna (22), a first Mimo antenna (23), and a second Mimo antenna (24). The Main antenna (21) and the Aux antenna (22) are vertically arranged on the plane where the circuit board (25) is located. The Main antenna (21) and the Aux antenna (22) are cross-arranged to form four partitions. The Main antenna (21) and the Aux antenna (22) are wavy and sawtooth-shaped. The first Mimo antenna (23) and the second Mimo antenna (24) are respectively arranged in any two of the partitions.

2. The integrated low-profile 5G antenna according to claim 1, characterized in that: The intersection angle is 0 to 90 degrees.

3. The integrated low-profile 5G antenna according to claim 1, wherein: The Main antenna (21) and the Aux antenna (22) are Sub6GHz antennas, and their operating frequency ranges include: 3300MHz to 4200MHz, 4400MHz to 5000MHz, 5150MHz to 5925MHz, 700MHz to 960MHz, 1452MHz to 1496MHz, 1710MHz to 2170MHz, and 2300MHz to 2690MHz; The operating frequency ranges of the first Mimo antenna (23) and the second Mimo antenna (24) include: 1452MHz to 1496MHz; 1710MHz to 2690MHz, 3300MHz to 4200MHz; 4400MHz to 5000MHz; and 5150MHz to 5925MHz.

4. The integrated low-profile 5G antenna according to claim 1, wherein: One end of the Main antenna (21) and the Aux antenna (22) is connected to the base layer (252) of the circuit board (25), and the other end is connected to the ground layer (251) through a feeder link.

5. The integrated low-profile 5G antenna according to claim 1, characterized in that: One end of the first Mimo antenna (23) and the second Mimo antenna (24) are connected to the base layer (252) of the circuit board (25), and the other end are connected to the ground layer (251) through a feeder link.

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