CN210075223U - Wireless module based on USB interface - Google Patents

Abstract

The utility model provides a wireless module based on USB interface, wireless module based on USB interface includes: the wireless chip comprises a substrate body, a 5G wireless chip and a peripheral circuit, wherein a plurality of bonding pads are arranged on a first edge and a second edge of the substrate body, the bonding pads arranged on the first edge are connected with a USB D + and a USB D-, and the wireless chip is arranged on the substrate body close to the first edge; the first edge and the second edge are parallel and opposite; and the bonding pad arranged on the second edge is directly grounded. The wireless module of the utility model has small size and simplest functional pins; just the utility model discloses a wireless module can realize the wireless transmission of 2 way data simultaneously through 2 transmission and receiving IPEX seat sub-connection antenna.

Description

Wireless module based on USB interface

Technical Field

The utility model relates to a wireless communication field especially relates to a be applied to wireless module based on USB interface in unmanned aerial vehicle's field.

Background

Unmanned aerial vehicle is an unmanned aerial vehicle which is operated by utilizing a radio remote control device and a self-contained program control device, or is completely or intermittently and autonomously operated by an on-board computer, the market of domestic unmanned aerial vehicles has been developed for over 30 years, and is gradually expanded from the initial military field to the consumption field, and the market of domestic consumption unmanned aerial vehicles is hot and hot.

At present, the unmanned aerial vehicle is more and more widely applied to the civil field with the advantages of low cost, high cost-effectiveness ratio, strong survival capability, good maneuvering performance, convenient use and the like. However, with the application field of the unmanned aerial vehicle becoming wider and wider, the unmanned aerial vehicle has higher and higher requirements on the signal quality of wireless WIFI, and the unmanned aerial vehicle has larger and larger required power, longer distance and smaller volume.

The existing wireless WIFI module is large in size and complex in interface definition, and various requirements of customers cannot be met. So the existing method is that each terminal customer designs the product by itself. However, the deep technology of the radio frequency and the chip is not well known by the client, so that the radio frequency index of the manufactured terminal product is poor, and the product authentication and the batch production have many problems.

SUMMERY OF THE UTILITY MODEL

In view of the above prior art's shortcoming, the utility model aims to provide a be applied to wireless module based on USB interface in unmanned aerial vehicle's field for wireless WIFI module size is big among the solution prior art, the complicated problem of interface definition.

In order to achieve the above objects and other related objects, the present invention provides a wireless module based on a USB interface, the wireless module based on the USB interface includes: the wireless chip comprises a substrate body, a 5G wireless chip and a peripheral circuit, wherein a plurality of bonding pads are arranged on a first edge and a second edge of the substrate body, the bonding pads arranged on the first edge are connected with a USB D + and a USB D-, and the wireless chip is arranged on the substrate body close to the first edge; the first edge and the second edge are parallel and opposite; and the bonding pad arranged on the second edge is directly grounded.

In an embodiment of the present invention, the bonding pad disposed on the first edge is connected to a first external power source, and is used for providing a power source for the 5G wireless chip.

In an embodiment of the present invention, the wireless module further includes 2 IPEX antennas for data transmission.

In an embodiment of the present invention, the peripheral circuit includes a radio frequency front end and an LC balun circuit, and the 5G wireless chip passes through the peripheral circuit the radio frequency front end with the LC balun circuit respectively with 2 the IPEX antenna performs data transmission.

In an embodiment of the present invention, the pad disposed on the first edge is further connected to a second external power source, for providing power to the radio frequency front end.

In an embodiment of the present invention, the pad connected to the first external power source and the pad connected to the second external power source are symmetrical with respect to the first edge center.

In an embodiment of the present invention, the pads on the first edge and the second edge are arranged at equal intervals.

In an embodiment of the present invention, the length of the substrate body is 31.1mm, and the width thereof is 20.1 mm.

As above, the utility model discloses a be applied to wireless module based on USB interface in unmanned aerial vehicle's field has following beneficial effect: 1) the wireless module of the utility model has small size and simplest functional pins; 2) the power of the A mode of the 5G WIFI reaches 20dBm and above, the power of the N mode low-rate MCS0 reaches 22dBm, and the power of the N mode high-rate MCS7 reaches 18 dBm; 3) the wireless module of the application is connected with the antenna through 2 transmitting and receiving IPEX seats, and meanwhile, wireless transmission of 2-channel data is achieved.

Drawings

Fig. 1 shows a schematic diagram of a substrate structure of a wireless module based on a USB interface according to an embodiment of the present invention.

Fig. 2 shows a schematic diagram of a wireless module based on a USB interface according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.

Please refer to the drawing, the utility model provides a be applied to wireless module based on USB interface in unmanned aerial vehicle field, it adopts 2 IPEX antennas on 5G wireless chip's basis, has realized the transmission and the receipt of 2 ways of data simultaneously. And, on the basis of current circuit and chip function, it is right the utility model discloses a arranging of wireless module's pad and the trend of circuit have carried out effective planning, make the utility model discloses a pin function that the pad corresponds is simplest, and the size of base plate body is less.

As shown in fig. 1, the present embodiment discloses a wireless module based on a USB interface, which includes a substrate body 100, a 5G wireless chip 200 and a peripheral circuit (not shown in the drawings). The substrate body 100 is rectangular, the short sides of the substrate body are respectively a first edge and a second edge, and a plurality of pads 1, 2, and 3 … … 11 are disposed on the first edge and the second edge. The spacing between adjacent pads is the same.

2 pads arranged on the first edge are respectively connected with a USB D + and a USB D-; a pad is also provided for supplying power to the 5G wireless chip 200. The 2 pads disposed on the second edge are directly grounded.

The 5G wireless chip 200 is disposed on the substrate body 100 near the first edge.

The peripheral circuit comprises a matching sub-circuit, a radio frequency front end and an LC balun circuit. The matching sub-circuit is used for converting signals of the USB D + and the USB D-connected to the bonding pad into signals required by the 5G wireless chip 200; the 5G wireless chip 200 is connected with the IPEX antenna interface through a radio frequency Front End (FEM) and an LC balun circuit. The rf front end is used for transmitting and receiving signals, performing power amplification, filtering, noise reduction, and the like on the signals.

The first edge is also provided with a bonding pad for providing power supply for the radio frequency front end.

Preferably, the 5G wireless chip in this embodiment adopts AR1021 of the kowtow company, and in order to match with this, 9 pads are disposed on the first edge of this embodiment, and 2 pads are disposed on the second edge. Wherein, the 6 th pad on the first edge is used for connecting with the USB D +, and the 7 th pad is used for connecting with the USB D-. The 2 nd pad is used for providing a 5V power supply for the radio frequency front end, and the 8 th pad is used for providing a 3.3V power supply for the 5G wireless chip 200. It is easy to see that the pitch between the 2 pads to which the power supplies are connected is relatively large in order to prevent the power supplies from interfering with each other. The 2 pads on the second edge are all used for ground. In the present embodiment, the size of each pad is set to 1.5mm by 1.4 mm; the interval between the centers of the adjacent bonding pads is 2 mm; the length of the substrate body is 31.1mm, and the width is 20.1 mm.

The pin definition of the bonding pad of the present embodiment is detailed in the following table.

Further, as shown in fig. 2, in this embodiment, AR1021 is adopted as a 5G wireless chip, and each IPEX antenna is equipped with a radio frequency front end and 2 LC balun circuits, so that AR1012 respectively uploads and downloads data with the 2 IPEX antennas through the 2 radio frequency front ends and the 4 LC balun circuits, and meanwhile, wireless transmission of 2 channels of data is realized.

To sum up, the wireless module based on the USB interface applied to the field of the unmanned aerial vehicle has small size and simplest functional pins; the power of the A mode of the 5G WIFI reaches 20dBm and above, the power of the N mode low-rate MCS0 reaches 22dBm, and the power of the N mode high-rate MCS7 reaches 18 dBm; and, the utility model discloses a wireless module can realize 2 way wireless transmission of data simultaneously through 2 transmission/receipt IPEX seat sub-connection antennas. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (8)

1. A wireless module based on a USB interface, the wireless module based on the USB interface comprising: the wireless chip comprises a substrate body, a 5G wireless chip and a peripheral circuit, wherein a plurality of bonding pads are arranged on a first edge and a second edge of the substrate body, the bonding pads arranged on the first edge are connected with a USB D + and a USB D-, and the wireless chip is arranged on the substrate body close to the first edge; the first edge and the second edge are parallel and opposite; and the bonding pad arranged on the second edge is directly grounded.

2. The wireless module based on USB interface according to claim 1, wherein: and the bonding pad arranged on the first edge is connected with a first external power supply and used for providing power for the 5G wireless chip.

3. The wireless module based on USB interface according to claim 2, wherein: the wireless module also comprises 2 IPEX antennae for data transmission.

4. The USB interface-based wireless module of claim 3, wherein: the peripheral circuit comprises a radio frequency front end and an LC balun circuit, and the 5G wireless chip respectively performs data transmission with the 2 IPEX antennas through the radio frequency front end and the LC balun circuit of the peripheral circuit.

5. The USB interface-based wireless module of claim 4, wherein: the bonding pad arranged on the first edge is also connected with a second external power supply and used for providing power for the radio frequency front end.

6. The USB interface-based wireless module of claim 5, wherein: the pad connected to the first external power supply and the pad connected to the second external power supply are symmetrical with respect to the first edge center.

7. The wireless module based on USB interface according to claim 1, wherein: the plurality of pads on the first edge and the second edge are arranged at equal intervals.

8. The wireless module based on USB interface according to claim 1, wherein: the length of base plate body is 31.1mm, and the width is 20.1 mm.

Images