CN210956993U

CN210956993U - Broadband Sub-6G external PCB antenna

Info

Publication number: CN210956993U
Application number: CN201922395817.4U
Authority: CN
Inventors: 吴冉; 钱磊; 沈桂香; 张海洋
Original assignee: Auden Communications & Multimedia Techno Kunshan Co ltd
Current assignee: Auden Communications & Multimedia Techno Kunshan Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-07-07
Anticipated expiration: 2029-12-27

Abstract

The application discloses external PCB board antenna of wide band Sub-6G, including the PCB substrate, the surface of PCB substrate is equipped with the radiation oscillator, and the surface of PCB substrate is provided with concave type loop oscillator, be provided with the resonance gap on the radiation oscillator, and be connected with central feeder on the radiation oscillator, be provided with balun on the central feeder. The application discloses external PCB board antenna of wide band Sub-6G, this design is realized under limited antenna environment in view of the requirement of Sub-6G frequency channel, the locating hole can effectual fixed PCB substrate, strengthen the product firmness, guarantee the product uniformity, resonant frequency can effectual regulation by the change of the depth in resonance gap, reduce the product size, reduce product cost, through balanced-unbalanced transformer, make central feed line turn into balanced structure, can play fine coupling in the aspect of antenna resonance impedance's matching, effectual increase antenna bandwidth.

Description

Broadband Sub-6G external PCB antenna

Technical Field

The application relates to the field of PCB (printed circuit board) antennas, in particular to a broadband Sub-6G external PCB antenna.

Background

As is well known, the fifth generation communication technology, 5G, has the significant features of high speed, low time delay, greater user connection capability, and the like, and is one of the most important underlying technologies for opening the future world of everything interconnection. With the formal business of 5G, corresponding mobile terminal products appear explosively, and in a mobile terminal, an antenna must be used for connecting a network, so that higher requirements on the bandwidth and the electrical performance of the antenna are provided, and the 4G antenna in the current market cannot meet the requirement on the wide bandwidth due to the fact that Su6-6G frequency bands (including 600MHZ, 700MHZ, 800MHz, 900MHz, 1.8GHz, 2.1GHz, 2.6GHz, 3.5GHz and 4.9GHz) cannot meet the requirement on the wide bandwidth, so that certain limitations exist in use.

Disclosure of Invention

The present application mainly aims to provide a broadband Sub-6G external PCB antenna, which can effectively solve the problems in the background art.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

the broadband Sub-6G external PCB antenna comprises a PCB substrate, wherein a radiation oscillator is arranged on the surface of the PCB substrate, a concave loop oscillator is arranged on the surface of the PCB substrate, a resonance gap is formed in the radiation oscillator, a center feeder line is connected to the radiation oscillator, and a balance-unbalance converter is arranged on the center feeder line.

Preferably, the radiation oscillator is arranged on one side of the surface of the PCB substrate, and the concave loop oscillator is arranged in the middle of the surface of the PCB substrate and at the position of the other side of the surface of the PCB substrate.

Preferably, the center feed line is fixedly connected with the balun, and the center feed line extends to the concave loop oscillator.

Preferably, the concave loop oscillator is provided with a loop gap surrounding a middle cavity of the concave loop oscillator, and the surface of the PCB substrate is provided with a feed pad and a cable woven mesh pad.

Preferably, one end of the PCB substrate is provided with a first positioning hole, and the PCB substrate is provided with a second positioning hole.

Preferably, the length of the radiating oscillator is one quarter of the working wavelength of the resonant frequency of 600MHz to 960 MHz.

Compared with the prior art, the method has the following beneficial effects: this external PCB board antenna of wide band Sub-6G, this design is in view of the requirement of Sub-6G frequency channel, realize under limited antenna environment, the locating hole can effectual fixed PCB substrate, strengthen the product firmness, guarantee the product uniformity, the change of the depth of resonance gap can effectual regulation resonant frequency, product space can be saved to such design, reduce product size, reduce product cost, loop gap and the balun that constitutes through the middle die cavity of adjusting concave type loop oscillator, make the unbalanced structure of central feeder turn into balanced structure, and can play fine coupling in the aspect of the matching of antenna resonance impedance, effectual increase antenna bandwidth.

Drawings

FIG. 1 is a schematic diagram of an overall structure of a broadband Sub-6G external PCB antenna according to the present application;

fig. 2 is an enlarged view of a broadband Sub-6G external PCB antenna a according to the present invention.

In the figure: 1. a PCB substrate; 2. a radiating oscillator; 3. a resonant slot; 4. a center feed line; 5. a concave loop oscillator; 6. a balun; 7. a loop gap; 8. a feeding pad; 9. a cable wire mesh grid bonding pad; 10. a first positioning hole; 11. and a second positioning hole.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the application easy to understand, the application is further described in the following with the specific embodiments.

In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

As shown in fig. 1-2, a broadband Sub-6G external PCB antenna comprises a PCB substrate 1, a radiation oscillator 2 is arranged on the surface of the PCB substrate 1, a concave loop oscillator 5 is arranged on the surface of the PCB substrate 1, a resonant gap 3 is arranged on the radiation oscillator 2, a central feeder line 4 is connected to the radiation oscillator 2, a balun 6 is arranged on the central feeder line 4, and the change of the depth of the resonant gap 3 can effectively adjust the resonant frequency, so that the design can save the product space, reduce the product size and reduce the product cost;

the radiation oscillator 2 is arranged on one side of the surface of the PCB base material 1, and the concave loop oscillator 5 is arranged in the middle of the surface of the PCB base material 1 and at the position of the other side; the center feeder 4 is fixedly connected with the balun 6, and the center feeder 4 extends to the concave loop oscillator 5; a loop gap 7 is formed on the concave loop oscillator 5 and around a middle cavity of the concave loop oscillator 5, a feed pad 8 and a cable wire mesh grid pad 9 are arranged on the surface of the PCB substrate 1, and the loop gap 7 formed by the middle cavity of the concave loop oscillator 5 and the balance-unbalance converter 6 are adjusted to convert the unbalance structure of the central feeder 4 into a balance structure, so that the antenna can play a good coupling role in the matching of antenna resonant impedance and effectively increase the bandwidth of the antenna; one end of the PCB substrate 1 is provided with a first positioning hole 10, and the PCB substrate 1 is provided with a second positioning hole 11, so that the PCB substrate 1 can be effectively fixed by the positioning holes, the firmness of the product is enhanced, and the consistency of the product is ensured; the length of the radiating oscillator 2 is one quarter of the working wavelength of the resonant frequency of 600 MHz-960 MHz.

It should be noted that, the present application is a broadband Sub-6G external PCB antenna, when in use, the PCB is first installed, when in installation, the structures such as the PCB substrate 1 are installed through the first positioning hole 10 and the second positioning hole 11, so as to ensure that the structures such as the PCB substrate 1 are fixedly installed at appropriate positions, so as to enhance the product firmness and ensure the product consistency, the antenna network connection is realized through the radiation oscillator 2, the central feeder 4, the feed pad 8, the cable mesh pad 9, and the like on the PCB substrate 1, during the use, the resonant frequency can be adjusted by changing the depth of the resonant gap 3 groove, the radiation oscillator 2 forms the central feeder 4 towards the direction of the concave loop oscillator 5 in a line width gradual change manner and increasing the balun 6, the concave loop oscillator 5 forms a loop gap 7 around the middle cavity of the concave loop oscillator 5, the central feeder 4 extends into the middle cavity of the concave loop oscillator 5 and is gradually changed with the loop gap 7 synchronously to form a gradual change power division network, the bandwidth of the antenna can be expanded, the network connection effect is ensured, and the information transmission efficiency is ensured, a feed pad 8 and a cable wire woven mesh pad 9 are arranged on the right side of the surface of the PCB substrate 1, the feed pad 8 is electrically connected with the radiation oscillator 2 through the central feeder 4, meanwhile, the cable wire woven mesh pad 9 is electrically connected with the concave loop oscillator 5 through a radio frequency coaxial cable and a radio frequency signal port of a terminal device, the antenna is connected with the radio frequency coaxial cable woven mesh through the concave loop oscillator 5, the unbalanced structure of the central feeder 4 is converted into a balanced structure by adjusting the loop gap 7 and the balance-unbalanced converter 6 formed by the middle cavity of the concave loop oscillator 5, and a good coupling effect can be achieved in the matching aspect of the antenna resonance impedance, effectively increasing the bandwidth of the antenna.

The foregoing shows and describes the general principles and features of the present application, together with the advantages thereof. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are presented solely for purposes of illustrating the principles of the application and that various changes and modifications may be made without departing from the spirit and scope of the application and within the scope of the application as hereinafter claimed. The scope of the claims herein is defined by the appended claims and equivalents thereof.

Claims

1. A broadband Sub-6G external PCB antenna is characterized in that: including PCB substrate (1), the surface of PCB substrate (1) is equipped with radiation oscillator (2), and the surface of PCB substrate (1) is provided with concave type loop oscillator (5), be provided with resonance gap (3) on radiation oscillator (2), and be connected with central feeder (4) on radiation oscillator (2), be provided with balun (6) on central feeder (4).

2. The broadband Sub-6G external PCB antenna as recited in claim 1, wherein: the radiation oscillator (2) is arranged on one side of the surface of the PCB base material (1), and the concave loop oscillator (5) is arranged in the middle of the surface of the PCB base material (1) and at the position of the other side of the surface of the PCB base material.

3. The broadband Sub-6G external PCB antenna as recited in claim 1, wherein: the center feeder (4) is fixedly connected with the balun (6), and the center feeder (4) extends to the concave loop vibrator (5).

4. The broadband Sub-6G external PCB antenna as recited in claim 1, wherein: the PCB is characterized in that a loop gap (7) is formed on the concave loop vibrator (5) and surrounds a middle cavity of the concave loop vibrator (5), and a feed pad (8) and a cable woven mesh pad (9) are arranged on the surface of the PCB base material (1).

5. The broadband Sub-6G external PCB antenna as recited in claim 1, wherein: one end of the PCB base material (1) is provided with a first positioning hole (10), and the PCB base material (1) is provided with a second positioning hole (11).

6. The broadband Sub-6G external PCB antenna as recited in claim 1, wherein: the length of the radiation oscillator (2) is one quarter of the working wavelength of the resonant frequency of 600 MHz-960 MHz.