WO2018205382A1

WO2018205382A1 - Antenna module and listening antenna device

Info

Publication number: WO2018205382A1
Application number: PCT/CN2017/090987
Authority: WO
Inventors: 杨飞虎
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2017-05-10
Filing date: 2017-06-30
Publication date: 2018-11-15
Also published as: CN206864635U; CN109891670A

Abstract

Disclosed are an antenna module (10) and a listening antenna device.The antenna module (10) comprises a housing (11), a circuit board assembly (13) and an antenna assembly (12). The housing (11) comprises a front accommodating chamber (112), a rear accommodating chamber (113) and a partition plate part (111) arranged between the front accommodating chamber (112) and the rear accommodating chamber (113). The circuit board assembly (13) is located in the front accommodating chamber (112), the antenna assembly (12) is located in the rear accommodating chamber (113), and the antenna assembly (12) is in communication connection with the circuit board assembly (13). The antenna assembly (12) and the circuit board assembly (13) are arranged in two independent cavities spaced apart from each other, reducing mutual interference between the two, and improving the monitoring range of the antenna device.

Description

Antenna module and listening antenna device

Technical field

The present invention relates to the field of antenna technologies, and in particular, to an antenna module and a listening antenna device.

Background technique

In drone applications, the antenna module operates in an outdoor environment and needs to communicate with the ground control. The antenna transmits and receives directionality. The existing antenna device uses a unidirectional antenna and cannot cover 360° horizontally. Moreover, the antenna is fixed in the fuselage of the drone, and its attachment angle is fixed, and it cannot be flexibly adjusted, and the monitoring range is small.

In the antenna module, there is a circuit board assembly for controlling the operation of the antenna and an antenna connected to the circuit board assembly, both of which are in the same cavity. During the antenna process, it interferes with the circuit board component and the antenna, affecting the listening range of the antenna module.

Summary of the invention

The invention provides an antenna module and a listening antenna device.

According to a first aspect of the present invention, an antenna module includes a housing, a circuit board assembly, and an antenna assembly, the housing including a front receiving cavity, a rear receiving cavity, and a front receiving cavity a partition portion between the rear receiving chamber, the circuit board assembly being located in the front receiving cavity, the antenna assembly being located in the rear receiving cavity, the circuit board group A piece is communicatively coupled to the circuit board assembly.

Optionally, the circuit board assembly includes an antenna processing board for communicating with the antenna component, and an output port communicatively coupled to the antenna processing board, where the antenna processing board is provided with an antenna processing circuit. The antenna processing board is disposed in the front receiving cavity, and the output port is disposed on the housing.

Optionally, the antenna processing board further includes an integrated circuit in communication with the antenna processing circuit, the integrated circuit is communicatively coupled to the output port, the circuit board assembly further comprising an input communicatively coupled to the integrated circuit a port, the input port being disposed on the housing.

Optionally, the antenna processing board further includes an electronic lightning protection device, and the electronic lightning protection device is electrically connected to the housing.

Optionally, the circuit board assembly further includes a shield that at least partially covers the antenna processing board.

Optionally, the antenna assembly includes an antenna board and a spacer disposed between the housing and the antenna board, and the spacer forms a gap of a preset width between the housing and the antenna board.

Optionally, a pivot bracket and a locking member hingedly connected to the housing are further included, and the locking member is configured to rotatably connect the housing to the rotating shaft bracket.

Optionally, the hinge bracket and the housing are connected by a stepped shaft.

According to a second aspect of the embodiments of the present invention, the present invention provides a listening antenna device including a position adjusting component and an antenna module as described above, the number of antenna modules being four and being fixed to the supporting device by the position adjusting component The antenna module and the location The adjustment assembly is rotatably connected; wherein the four antenna modules are arranged in a symmetrical configuration.

Optionally, the two opposing antenna modules are connected by a cable, one of which sends a signal to the other to cause the other to aggregate and output the signal.

The technical solutions provided by the embodiments of the present invention may include the following beneficial effects:

The antenna assembly and the circuit board assembly are disposed in two separate chambers spaced apart, which reduces mutual interference between the two and improves the monitoring range of the antenna device.

The number of antenna modules is four and arranged in a symmetrical structure, so that the listening antenna device can cover 360° horizontally. The antenna module and the position adjusting component are rotatably connected, so that the angle of the supporting device can be adjusted after the antenna module is fixed to the supporting device, thereby maximizing the listening orientation of the listening antenna device and high antenna gain. , a wide range of monitoring.

DRAWINGS

FIG. 1 is a schematic perspective structural view of a listening antenna device according to an exemplary embodiment of the present invention.

FIG. 2 is a schematic top plan view of a listening antenna device according to an exemplary embodiment of the invention.

FIG. 3 is a schematic exploded view of an antenna module according to an exemplary embodiment of the present invention.

FIG. 4 is a schematic structural diagram of an antenna module according to an exemplary embodiment of the present invention.

FIG. 5 is a structural diagram of another antenna module according to an exemplary embodiment of the present invention. intention.

In the figure, the antenna module 10; the housing 11; the partition portion 111; the front housing chamber 112; the rear housing chamber 113; the connecting portion 114; the first body 115; the second body 116; the third body 117; the antenna assembly 12; Board 121; antenna 1211; coaxial cable 1212; connector 1213; spacer 122; circuit board assembly 13; output port 131; input port 132; antenna processing board 133; antenna processing circuit 1331; integrated circuit 1332; Lightning device 1333; shield cover 134; shaft bracket 15; mounting portion 151; link portion 152; card slot 153; locking member 16; step shaft 17; fixing rod 20; position adjusting assembly 30; first fixing plate 31; Mounting surface 311; second mounting surface 312; second fixing plate 32; third mounting surface 321; fourth mounting surface 322; fastening assembly 33.

Specific embodiment

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. The following description refers to the same or similar elements in the different figures unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with aspects of the invention as detailed in the appended claims.

The terminology used in the present invention is for the purpose of describing particular embodiments, and is not intended to limit the invention. The singular forms "a", "the" and "the" It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used to describe various information in the present invention, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information may also be referred to as the second information without departing from the scope of the invention. Similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "when" or "in response to a determination."

As shown in FIG. 1 and FIG. 2, a listening antenna device according to an exemplary embodiment includes a position adjusting component 30 and an antenna module 10. The number of the antenna modules 10 is four and is fixed to the supporting device by the position adjusting component 30. The antenna module 10 is rotatably connected to the position adjusting component 30, and the four antenna modules 10 are symmetrically arranged. .

In the present embodiment, the supporting device is the fixing rod 20. The fixing rod 20 is a rigid structure for adjusting the longitudinal height at which the antenna module 10 is located. If the fixing rod 20 is set to a cylindrical shape, the antenna module 10 moves along the axis direction of the fixing rod 20 with the position adjusting assembly 30, and the position adjusting assembly 30 is fixed at a preset position of the fixing rod 20, so that the antenna module 10 is preset. Position to work. It can be understood that the supporting device can also be other facilities such as a support tower.

The position adjusting assembly 30 includes a first fixing plate 31, a second fixing plate 32, and a fastening assembly 33 connecting the first fixing plate 31 and the second fixing plate 32. The first fixing plate 31 and the second fixing plate 32 are clamped and fixed. The rod 20 is locked by a fastening assembly 33. The first fixing plate 31 is provided with a first mounting surface 311 and a second mounting surface 312. Alternatively, the first mounting surface 311 and the second mounting surface 312 are perpendicular to each other. a third safety is provided on the second fixing plate 32 The mounting surface 321 and the fourth mounting surface 322, optionally, the third mounting surface 321 and the fourth mounting surface 322 are perpendicular to each other.

When the position adjusting component 30 is fixed on the fixing rod 20, the first mounting surface 311 is parallel to the third mounting surface 321 and is respectively disposed on two sides of the fixing rod 20, and the second mounting surface 312 is parallel to the fourth mounting surface 322 and respectively It is provided on both sides of the fixed rod 20. Optionally, the first mounting surface 311, the second mounting surface 312, the third mounting surface 321 and the fourth mounting surface 322 are on four sides of the rectangle, and the four antenna modules 10 are respectively mounted on the first mounting surface 311, The second mounting surface 312, the third mounting surface 321 and the fourth mounting surface 322. The two opposing antenna modules 10 are connected by a cable, one of which sends a signal to the other to cause the other to concentrate and output the signals. For example, the first mounting surface 311 is connected to the antenna module 10 on the third mounting surface 321 by a cable, and/or the second mounting surface 312 is connected to the antenna module 10 on the fourth mounting surface 322 by a cable. The four antenna modules 10 are arranged in a symmetrical manner as a whole, and the four antenna modules 10 are rotatably connected to the position adjusting assembly 30, so that the angle between the antenna module 10 and the fixed rod 20 can be adjusted.

After the antenna modules 10 are connected in series, one of the antenna modules 10 can be integrated and output through an output channel, thereby reducing the number of receiving ports on the host and reducing the equipment cost. The antenna modules 10 on the fixed poles 20 are connected by cables. The receiving ranges of the two antenna modules 10 are opposite, and the overlapping areas are small, which can improve the accuracy of the antenna signals and obtain accurate data accuracy. The four antenna modules 10 form an antenna group, which can be detected within a range of 360° coverage, and has a wide coverage range, thereby achieving omnidirectional coverage of the monitoring device and reducing the monitoring dead angle.

As shown in FIGS. 1 and 3, the antenna module 10 includes a housing 11 and is hinged to the housing 11. The connecting shaft bracket 15 and the locking member 16 are used for rotatably connecting the housing 11 to the shaft bracket 15. The shaft bracket 17 is connected to the housing 11 by a stepped shaft 17. Wherein, the rotating shaft bracket 15 is fixed on the position adjusting assembly 30, so that the antenna module 10 is disposed outward. It is worth mentioning that the shaft bracket 15 is in the radial direction of the fixing rod 20, and the rotation direction of the housing 11 in the rotation shaft bracket 15 is parallel to the axial direction of the fixing rod 20, that is, by adjusting the housing 11 and the shaft bracket 15, The elevation angle and the depression angle of the antenna module 10 are adjusted, and the adjustment is convenient.

In a specific embodiment, the outer surface of the housing 11 is convexly provided with a connecting portion 114, wherein the connecting portion 114 is disposed on the back surface of the housing 11 having the antenna 1211 on the antenna module 10 so that the receiving end of the antenna 1211 faces outward. . The hinge bracket 15 includes a mounting portion 151 and a link portion 152 of the protruding mounting portion 151. The link portion 152 defines a card slot 153 for connecting to the connecting portion 114. The mounting portion 151 is fixed to the position adjusting assembly 30. The connecting portion 114 is bored into the slot 153 and connected by the stepped shaft 17, so that the housing 11 is hingedly coupled to the hinge bracket 15. Correspondingly, a through hole is formed in the connecting portion 114, and a connecting hole penetrating through the connecting portion 152 is perpendicular to the side wall of the card slot 153.

The locking member 16 is mounted on the spindle holder 15 and locks the position between the housing 11 and the spindle holder 15 to prevent the two from rotating relative to each other. Wherein, the locking member 16 is mounted on the link portion 152 and can move in the direction of the slot 153. When the locking member 16 enters the slot 153 and abuts against the connecting portion 114, the angle between the housing 11 and the hinge bracket 15 is maintained. In the locked state. When the locking member 16 is disengaged from the connecting portion 114, the housing 11 can be rotated about the rotating shaft bracket 15 to adjust the angle between the two. For example, the locking member 16 employs a fastener that is threadedly coupled to the spindle bracket 15. When the locking member 16 rotates, its end can abut The connecting portion 114 thereby locks the position of the housing 11.

As shown in FIG. 3, an antenna module 10 is illustrated in accordance with an exemplary embodiment. The antenna module 10 includes a housing 11, a circuit board assembly 13, and an antenna assembly 12. The housing 11 includes a first body 115, a second body 116 and a third body 117 connected to the first body 115, and a front housing cavity 112 is formed between the first body 115 and the second body 116, and the circuit board assembly 13 is located at the front The chamber 112 is received. A rear accommodating cavity 113 is formed between the first body 115 and the third body 117, and the antenna assembly 12 is located inside the rear accommodating cavity 113. The first body 115 is formed with a partition portion 111 between the front housing chamber 112 and the rear housing chamber 113.

Optionally, the housing 11 has an "L"-shaped structure, and the second body 116 and the third body 117 are respectively disposed on opposite sides of the first body 115. The area of the front accommodating cavity 112 is smaller than the area of the rear accommodating cavity 113. The connecting portion 114 is disposed on the first body 115 and on the same side as the front accommodating cavity 112.

The antenna assembly 12 and the circuit board assembly 13 are disposed in two separate chambers spaced apart, which reduces mutual interference between the two and improves the monitoring range of the antenna device. The receiving of the antenna assembly 12 is outwardly disposed, the receiving area is large, the interference is small, and the receiving effect is good. The connecting portion 114 is disposed on the first body 115, and the space of the notch portion of the casing 11 is effectively utilized, so that the center distance of the antenna module 10 from the fixed rod 20 is reduced, the length of the rotating shaft bracket 15 is shortened, and the listening antenna device is improved. Stability and more compact structure.

The circuit board assembly 13 includes an antenna processing board 133 for communicating with the antenna assembly 12, and an output port 131 and/or an input port 132 in communication with the antenna processing board 133. The antenna processing board 133 is disposed in the front housing cavity 112, and the output port 131 and/or the input port 132 are disposed on the housing 11.

An antenna processing circuit 1331, an electronic lightning arrester 1333, and/or an integrated circuit 1332 in communication with the antenna processing circuit 1331 are provided on the antenna processing board 133, wherein the integration circuit 1332 is communicatively coupled to the input port 132 and the output port 131.

As shown in FIG. 3 to FIG. 5, when the antenna module 10 is applied to the antenna device, the two antenna modules 10 are connected by a cable to integrate signals into one of the antenna modules 10. Therefore, the antenna module 10 includes an output antenna module 10 having only one input port 132, and an integrated antenna module 10 having both an input port 132 and an output port 131, and an integrated circuit 1332 is provided in the integrated antenna module 10.

The output port 131 of the output antenna module 10 is connected to the input port 132 of the integrated antenna module 10 by a cable to transmit the antenna signal to the integration circuit 1332, while the integration circuit 1332 receives the output of the antenna processing board 133 of the integrated antenna module 10 itself. Antenna signal. The integration circuit 1332 integrates the two antenna signals and connects to the host through the output port 131 of the integrated antenna module 10. The antenna processing circuit 1331 and the integration circuit 1332 combine the four signals after signal amplification into two outputs to the host. Accordingly, the number of ports required by the host is reduced from four to two, thereby saving ports and improving resource utilization.

The intercepting antenna device needs to work in an outdoor environment, and is easily subjected to lightning strikes in a lightning environment. An electronic lightning arrester 1333 is disposed on the antenna processing board 133 to electrically connect the electronic lightning arrester 1333 to the housing 11 to prevent lightning current from flowing through. The antenna processing board 133 protects the security of the antenna processing board 133, fully utilizes the excellent grounding effect on the housing 11, and reduces damage to the listening antenna device by lightning strikes.

The circuit board assembly 13 and the antenna assembly 12 are disposed in the same housing 11 and interfere with each other. In order to further reduce the interference between the two, improve the accuracy of antenna signal transmission and reception. Indeed, the circuit board assembly 13 also includes a shield 134 that at least partially covers the antenna processing board 133. Wherein, the shield cover 134 mainly covers the processor unit on the antenna processing board 133.

As shown in FIG. 3, an antenna assembly 12 for an antenna module 10 is shown in accordance with an exemplary embodiment. The antenna assembly 12 includes an antenna board 121 and a spacer 122 disposed between the housing 11 and the antenna board 121. The spacer 122 forms a gap of a predetermined width between the housing 11 and the antenna board 121.

An antenna 1211 is disposed on the antenna board 121, and a coaxial cable 1212 connected to the antenna 1211 for transmitting signals is provided. The connector 1213 is provided at an end of the coaxial cable 1212. The antenna processing board 133 is provided with a connecting member that is electrically connected to the antenna processing circuit 1331. The coaxial cable 1212 passes through the partition portion 111 and is plugged and connected with the connecting member to electrically connect the circuit board assembly 13 with the circuit board assembly 13. Accordingly, a through hole is formed in the partition portion 111.

The spacer 122 is disposed between the housing 11 and the antenna board 121 for controlling the spacing between the antenna board 121 and the housing 11 to meet the specific performance requirements of the antenna module 10. At the same time, the spacer 122 can also be used to fix the antenna board 121 to the housing 11, which is convenient to install. Alternatively, the spacer 122 may be a plastic isolation column, a spacer, or the like, such that the antenna plate 121 and the housing 11 have a stable spacing. In the present embodiment, the structure of the separation column is employed.

The features of the above embodiments and embodiments may be combined with each other without conflict.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

An antenna module, comprising: a housing, a circuit board assembly and an antenna assembly, the housing comprising a front receiving cavity, a rear receiving cavity, and a partition disposed between the front receiving cavity and the rear receiving cavity The circuit board assembly is located in the front receiving cavity, the antenna assembly is located in the rear receiving cavity, and the circuit board assembly is communicatively coupled to the circuit board assembly.
The antenna module according to claim 1, wherein said circuit board assembly comprises an antenna processing board for communicating with said antenna assembly, and an output port communicably coupled to said antenna processing board, said antenna An antenna processing circuit is disposed on the processing board, the antenna processing board is disposed in the front receiving cavity, and the output port is disposed on the housing.
The antenna module according to claim 2, wherein said antenna processing board further comprises an integrated circuit in communication with said antenna processing circuit, said integrated circuit being communicatively coupled to said output port, said circuit board assembly further An input port communicatively coupled to the integrated circuit is disposed, the input port being disposed on the housing.
The antenna module according to claim 2, wherein the antenna processing board further comprises an electronic lightning protection device, and the electronic lightning protection device is electrically connected to the housing.
The antenna module of claim 2 wherein said circuit board assembly further comprises a shield that at least partially covers said antenna processing board.
The antenna module according to claim 1, wherein the antenna assembly comprises an antenna board and a spacer disposed between the housing and the antenna board, the spacer being in the housing and the antenna A gap of a predetermined width is formed between the plates.
The antenna module according to claim 1, further comprising The housing is hingedly connected to the rotating shaft bracket and the locking member, and the locking member is configured to rotatably connect the housing to the rotating shaft bracket.
The antenna module according to claim 7, wherein the hinge bracket and the housing are connected by a stepped shaft.
A listening antenna device, comprising: a position adjusting component and the antenna module according to any one of claims 1-8, wherein the number of antenna modules is four and is fixed to the supporting device by the position adjusting component The antenna module and the position adjustment assembly are rotatably connected; wherein the four antenna modules are disposed in a symmetrical structure.
The listening antenna device according to claim 9, wherein the two opposite antenna modules are connected by a cable, one of which transmits a signal to the other to cause the other to concentrate and output the signals.