CN212517522U

CN212517522U - Miniaturized PCB antenna of 5G full frequency channel

Info

Publication number: CN212517522U
Application number: CN202021630732.6U
Authority: CN
Inventors: 汪卫
Original assignee: Signal Plus Technology Co ltd
Current assignee: Signal Plus Technology Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-02-09
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a miniaturized PCB antenna of 5G full frequency channel, fixed being provided with irradiator part on the medium base plate, the fixed transmission line portion that is equipped with on the medium base plate, the fixed signal pad and the ground connection pad that are equipped with in one side that the irradiator part was kept away from to the transmission line part, the last antenna ground connection that is equipped with of medium base plate walks the line, and the fixed coaxial cable that is equipped with in one side that the irradiator part was kept away from to the transmission line part, the one end fixedly connected with radio frequency connector of transmission line portion. The utility model uses the full PCB structure, has small area and good universality, and has quite good performance and practicability no matter being used as an internal antenna or an internal structure of an external antenna; in addition, the structure is simple, the PCB is a common FR4 board, the PCB can be used only by welding corresponding coaxial cables and radio frequency connectors, the process is simple, the cost is low, the performance is excellent, the reject ratio is low, and the PCB is suitable for batch production.

Description

Miniaturized PCB antenna of 5G full frequency channel

Technical Field

The utility model relates to a 5G antenna technical field, concretely relates to miniaturized PCB antenna of 5G full frequency channel.

Background

With the increasing demand of 5G, the frequency band of the antenna is more and more required, covering 600 MHz-6000 MHz, and the size of the antenna is also increased to obtain better radiation performance. However, in view of beauty and cost, the space left for the antenna is not particularly sufficient, and it is very difficult to implement such a broadband performance by using the conventional antenna routing method and to ensure a high efficiency, and even if the performance can meet the customer's requirements, the volume exceeds the space left by the customer.

Therefore, it is urgently required to develop a high-performance antenna which is small in size and can cover from 600MHz to 6000 MHz.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a miniaturized PCB antenna of full frequency channel of 5G.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a miniaturized PCB antenna of 5G full frequency channel, includes casing and lower casing, it passes through a plurality of bolts and casing seal fixed connection down to go up the casing, go up the casing and be equipped with the medium base plate down between the casing fixedly, the last fixed irradiator portion that is provided with of medium base plate, the last fixed transmission line portion that is equipped with of medium base plate, transmission line portion connects irradiator portion through posting electric coupling unit, one side that irradiator portion was kept away from to transmission line portion is fixed and is equipped with signal pad and ground connection pad, it walks the line to be equipped with antenna ground connection on the medium base plate, one side that irradiator portion was kept away from to transmission line portion is fixed and is equipped with coaxial cable, coaxial cable keeps away from the one.

Further, the radio frequency connector, the signal pad, the ground pad, the antenna ground trace, the radiator part, the transmission line part, and the parasitic coupling unit are antenna trace structures obtained by processing copper foils attached to the dielectric substrate.

Further, the core wire part of the coaxial cable is connected with the signal pad in a welding mode, and the braided part of the coaxial cable is connected with the grounding pad in a welding mode.

Further, the grounding pad is electrically connected with the antenna grounding wire.

Furthermore, the shape of the antenna grounding wire is in a shape of a Chinese character 'hui'.

Furthermore, a first slot and a second slot are arranged on the antenna grounding wire.

Further, the signal pad is electrically connected to the transmission line portion.

Further, the radiator portion has a flat rectangular shape.

Furthermore, protective heat dissipation coatings are coated on the upper shell and the lower shell.

The utility model has the advantages that:

1. the utility model has the advantages that the radio frequency performance is stable, the frequency range is wide, the performance can be good from 0.6GHz to 6GHz, and the efficiency is generally higher compared with the antenna with the common structure; the structure is simple, the area is small, the structure universality is good, the product reject ratio is low, and the production is easy; moreover, because the frequency band is wide enough, if the client needs to add frequency band applications which are not satisfied by existing indoor distributed products, the antenna does not need to be replaced, and therefore the universality of the antenna is high;

2. the antenna has the greatest advantages that the antenna can meet the antenna performance required by the appearance condition when the appearance condition is small enough, and the performance is stable; this kind of antenna compares the frequency channel with other common full frequency channel antennas and is wideer, and radiant efficiency is higher, and the size is littleer, and the performance is more stable, and the structure commonality is better, possesses good market prospect.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic structural diagram of the medium substrate and the upper member thereof according to the present invention.

In the figure:

the antenna comprises a dielectric substrate 1, a coaxial cable 2, a radio frequency connector 3, a signal pad 4, a ground pad 5, an antenna ground trace 6, a radiator part 7, a transmission line part 8, a parasitic coupling unit 9, an upper shell 10 and a lower shell 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a 5G full-band miniaturized PCB antenna includes an upper housing 10 and a lower housing 11, the upper housing 10 is fixedly connected to the lower housing 11 through a plurality of bolts, so as to prevent the internal components from being pasted, a dielectric substrate 1 is fixedly disposed between the upper housing 10 and the lower housing 11, a radiator portion 7 is fixedly disposed on the dielectric substrate 1, a transmission line portion 8 is fixedly disposed on the dielectric substrate 1, the transmission line portion 8 is connected to the radiator portion 7 through a parasitic coupling unit 9, a signal pad 4 and a ground pad 5 are fixedly disposed on a side of the transmission line portion 8 away from the radiator portion 7, respectively for signal transmission and grounding, an antenna ground trace 6 is disposed on the dielectric substrate 1, for grounding operation of the antenna, a coaxial cable 2 is fixedly disposed on a side of the transmission line portion 8 away from the radiator portion 7, and a radio frequency connector 3 is fixedly connected to an end of the coaxial cable 2 away from the, the radio frequency signal is directed to the internal circuitry.

The radio frequency connector 3, the signal pad 4, the grounding pad 5, the antenna grounding wire 6, the radiator part 7, the transmission line part 8 and the parasitic coupling unit 9 are antenna wiring structures obtained by processing copper foils attached to the upper surface of the dielectric substrate 1, and are used for signal transmission.

The core wire part of the coaxial cable 2 is connected with the signal pad 4 by welding, and the braided part of the coaxial cable 2 is connected with the grounding pad 5 by welding, and the core wire part and the grounding pad are respectively used for signal transmission and grounding.

The grounding pad 5 is electrically connected with the antenna grounding wire 6, so that the grounding effect is realized.

The shape of the antenna grounding wire 6 is in a shape of a Chinese character 'hui', so that the antenna area is reduced, and the working frequency band of the antenna is widened.

The antenna ground trace 6 is provided with a first slot 61 and a second slot 62, which can change the current direction and extend the ground trace.

The signal pad 4 is electrically connected with the transmission line part 8, and the transmission function of signals is ensured.

The radiator portion 7 is flat and rectangular, and can increase signal strength.

Wherein, protective heat dissipation coatings are coated on the upper shell 10 and the lower shell 11 to protect internal components.

The working principle of the 5G full-band miniaturized PCB antenna is as follows:

by using a copper foil attached to the upper surface of the dielectric substrate 1, a radio frequency connector 3, a signal pad 4, a grounding pad 5, an antenna grounding wire 6, a radiator part 7, a transmission line part 8 and a parasitic coupling unit 9 are obtained through processing; the core wire part of the coaxial cable 2 is connected with the signal pad 4 on the PCB by welding, and signals can be transmitted to the signal input end of the antenna through the coaxial cable 2; the braided part of the coaxial cable 2 is connected with the grounding pad 5 on the PCB by welding, so that the grounding of the coaxial cable 2 can be communicated with the grounding of the antenna; 61 and 62 are slots opened on the antenna grounding wire 6, change the current trend, prolong the grounding wire; the signal pad 4 on the PCB transmits signals to the antenna radiator part 7 through the transmission line part 8, and the signals are radiated; the parasitic coupling unit 9 functions to widen the antenna band by parasitic coupling.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a miniaturized PCB antenna of 5G full frequency channel, its characterized in that, includes casing (10) and casing (11) down, go up casing (10) through a plurality of bolts and casing (11) sealed fixed connection down, go up casing (10) and fixedly be equipped with medium base plate (1) down between casing (11), the fixed radiator part (7) that is provided with on medium base plate (1), the fixed transmission line portion (8) that is equipped with on medium base plate (1), transmission line portion (8) are through posting electric coupling unit (9) connection radiator part (7), one side that radiator part (7) were kept away from in transmission line portion (8) is fixed and is equipped with signal pad (4) and ground connection pad (5), be equipped with antenna ground connection line (6) on medium base plate (1), one side that radiator part (7) were kept away from in transmission line portion (8) is fixed and is equipped with coaxial cable (2), and one end of the coaxial cable (2) far away from the transmission line part (8) is fixedly connected with a radio frequency connector (3).

2. The 5G full-band miniaturized PCB antenna according to claim 1, wherein the RF connector (3), the signal pad (4), the ground pad (5), the antenna ground trace (6), the radiator portion (7), the transmission line portion (8), and the parasitic coupling unit (9) are antenna trace structures formed by processing copper foil attached to the dielectric substrate (1).

3. The 5G full-band miniaturized PCB antenna according to claim 1, wherein the core wire part of the coaxial cable (2) is connected with the signal pad (4) by welding, and the braided part of the coaxial cable (2) is connected with the grounding pad (5) by welding.

4. A 5G full band miniaturized PCB antenna according to claim 1 wherein the ground pad (5) is electrically connected to the antenna ground trace (6).

5. The 5G full-band miniaturized PCB antenna as claimed in claim 1, wherein the shape of the antenna ground trace (6) is a Chinese character 'hui'.

6. The 5G full-band miniaturized PCB antenna according to claim 1, wherein the antenna ground trace (6) is provided with a first slot (61) and a second slot (62).

7. A 5G full band miniaturized PCB antenna according to claim 1 characterized in that the signal pad (4) is electrically connected to the transmission line section (8).

8. The 5G full band miniaturized PCB antenna of claim 1, wherein the radiator part (7) is in the shape of a flat rectangle.

9. The miniaturized PCB antenna for 5G full band according to claim 1, wherein the upper casing (10) and the lower casing (11) are coated with protective heat dissipation coatings.