CN219978412U

CN219978412U - Antenna detection jig and antenna detection equipment

Info

Publication number: CN219978412U
Application number: CN202320848523.6U
Authority: CN
Inventors: 杨志勇
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-11-07
Anticipated expiration: 2033-04-17

Abstract

The disclosure relates to an antenna detection jig and antenna detection equipment. Antenna detection tool includes: the detection plate is provided with an accommodating groove; the first circuit board is positioned at the position, close to the notch of the accommodating groove, in the accommodating groove, and a first through hole is formed in the surface, facing the notch direction of the accommodating groove; the feed assembly is positioned in the accommodating groove, and the feed end part of the feed assembly passes through the first through hole and is exposed out of the first surface of the detection plate; under the condition that the antenna detection jig detects the flexible radiation body, the flexible radiation body is contacted with the feed end part and can form a cavity antenna with the first circuit board; and a signal connector electrically connected to the feed assembly and configured to transmit an electrical signal returned by the cavity antenna, such that the cavity antenna can be detected based on the returned electrical signal. Through the antenna detection jig provided by the embodiment of the disclosure, the detection cost of the cavity antenna can be reduced, the detection step of the cavity antenna is simplified, and the detection efficiency of the cavity antenna is improved.

Description

Antenna detection jig and antenna detection equipment

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to an antenna detection jig and an antenna detection device.

Background

Terminal equipment such as a traditional tablet personal computer and a mobile phone are developed in the directions of high screen ratio and lighter weight, and the traditional all-metal rear cover mobile phone and the traditional metal integrated (unibody) large-screen tablet are advanced in the directions of extremely appearance.

Currently, in order to accommodate such an integrated terminal device, the antenna in such a terminal device adopts a slot antenna scheme from a previous all-metal rear cover to a metal frame antenna scheme, and then to a cavity antenna scheme in which a flexible circuit board (Flexible Printed Circuit, FPC) and a bracket are designed.

However, for the non-conventional antenna type of the FPC cavity antenna, in order to realize various performances related to the FPC cavity antenna in the tooling detection, a tooling detection environment similar to that of an actual terminal device is required to be completely detected, so that the tooling detection tooling has high cost.

Disclosure of Invention

In order to overcome the problems in the related art, the present disclosure provides an antenna detection jig and an antenna detection apparatus. Through the antenna detection jig that this disclosure provided, can reduce the detection cost to cavity antenna to simplify the detection step to cavity antenna, improve the detection efficiency to cavity antenna.

In a first aspect of the embodiments of the present disclosure, an antenna detection fixture is provided, including at least:

the detection plate is provided with an accommodating groove;

the first circuit board is positioned at the position, close to the notch of the accommodating groove, in the accommodating groove, and a first through hole is formed in the surface, facing the notch direction of the accommodating groove;

the feed assembly is positioned in the accommodating groove, and the feed end part of the feed assembly penetrates through the first through hole and is exposed out of the first surface of the detection plate; under the condition that the antenna detection jig detects the flexible radiation body, the flexible radiation body is in contact with the feed end part and can form a cavity antenna with the first circuit board;

and the signal connector is electrically connected with the feed assembly and is configured to transmit an electric signal returned by the cavity antenna so that the cavity antenna can be detected based on the returned electric signal.

In some embodiments, the antenna detection jig further comprises:

the second circuit board is positioned in the accommodating groove close to the groove bottom of the accommodating groove and is arranged at intervals with the first circuit board;

the feed root of the feed assembly is fixed on the second circuit board;

the signal connector is positioned on one side of the second circuit board away from the first circuit board.

In some embodiments, the bottom of the accommodating groove is provided with a second through hole;

the signal connector comprises a first connecting port and a second connecting port;

the first connecting port is fixed on the second circuit board and is electrically connected with the feed assembly;

the second connection port is formed on the second surface of the detection plate through the second through Kong Xianlou, and the second surface and the first surface are two opposite surfaces of the detection plate.

In some embodiments, the antenna detection jig further comprises:

the conductive grounding piece is connected with the grounding point of the first circuit board and the grounding point of the second circuit board and is respectively positioned at two opposite ends of the second circuit board with the feed component.

In some embodiments, the feeding assembly is an elastic telescopic member, and the feeding end is movable relative to the feeding root along the telescopic direction of the elastic telescopic member;

the feeding end portion is movable toward a direction of shortening a distance between the feeding end portion and the feeding root portion in a case where the flexible radiation body is in contact with the feeding end portion.

In some embodiments, the elastic telescoping member comprises:

a fixed sleeve;

a movable part, one part of which is positioned in the fixed sleeve, and the other part of which is exposed outside the fixed sleeve;

an elastic member having one end fixed to an inner bottom wall of the fixed sleeve and the other end fixedly connected to an end surface of the movable member facing an inner bottom wall of the fixed sleeve, and configured to be elastically deformed when the flexible radiating body is in contact with the feeding end;

the feed end part is positioned at one end of the movable part, which is away from the elastic part, and can be abutted against the flexible radiation body under the action of deformation restoring force based on elastic deformation.

In some embodiments, the antenna detection jig further comprises:

the conductive block is positioned on the surface of the first circuit board facing the notch direction of the accommodating groove and is connected with the grounding point of the first circuit board;

the conductive block is contacted with conductive foam of the flexible radiation body under the condition that the flexible radiation body is contacted with the feed end part; the plurality of conductive blocks are distributed at different positions of the first circuit board.

In some embodiments, the connection part of the conductive block and the first circuit board is provided with a copper exposure gold plating structure.

In some embodiments, the antenna detection jig further comprises:

a carrying platform;

the bearing plate is positioned on the bearing table and is provided with a positioning groove;

the movable mechanism is arranged on the same side of the bearing table as the bearing plate and is provided with a movable clamping part; the movable clamping part is configured to clamp the detection plate and can drive the detection plate to move towards the positioning groove in a direction perpendicular to the bearing plate;

under the condition of detecting the flexible radiation body, the flexible radiation body is located in the positioning groove, and the movable clamping part drives the detection plate to move, so that the flexible radiation body in the positioning groove can contact the feed end part.

In a second aspect of the embodiments of the present disclosure, there is provided an antenna detection apparatus, including at least:

the antenna detection jig according to the first aspect;

the network analyzer is connected with the signal connector of the antenna detection jig and is configured to detect the cavity antenna based on an electric signal returned by the cavity antenna enclosed by the flexible radiation body and the first circuit board of the antenna detection jig.

In some embodiments, the network analyzer comprises:

a device communication port;

a flexible cable electrically connecting the device communication port and the second connection port of the signal connector;

a signal generation module connected to the device communication port and configured to generate a feed signal to excite the cavity antenna to emit a wireless signal;

an analysis module connected to the signal generation module and the device communication port and configured to analyze the cavity antenna based on the feed signal and the electrical signal returned by the cavity antenna;

and the display device is electrically connected with the analysis module and is configured to display an analysis result.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

an antenna detection tool that this disclosed embodiment provided, antenna detection tool includes: the detection plate is provided with an accommodating groove; the first circuit board is positioned at the position, close to the notch of the accommodating groove, in the accommodating groove, and a first through hole is formed in the surface, facing the notch direction of the accommodating groove; the feed assembly is positioned in the accommodating groove, and the feed end part of the feed assembly penetrates through the first through hole and is exposed out of the first surface of the detection plate; under the condition that the antenna detection jig detects the flexible radiation body, the flexible radiation body is in contact with the feed end part and can form a cavity antenna with the first circuit board; and the signal connector is electrically connected with the feed assembly and is configured to transmit an electric signal returned by the cavity antenna so that the cavity antenna can be detected based on the returned electric signal. Through first circuit board and the feed subassembly in the antenna detection tool that this disclosure provided, simulation and the similar frock detection environment of actual terminal equipment, be different from the complete antenna radiation structure that needs among the correlation technique, only need antenna detection tool and flexible radiation body can simulate complete antenna radiation structure in this disclosed embodiment to saved partial frock detection structure (for example, antenna platelet and metal backshell), reduced the detection cost to the cavity antenna, and simplified the detection step to the cavity antenna, improved the detection efficiency to the cavity antenna.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1a is a schematic structural view of a terminal device in which a flexible radiation body is provided according to an exemplary embodiment.

Fig. 1b is a schematic structural diagram of a conventional cavity antenna provided according to an exemplary embodiment.

Fig. 1c is a schematic structural diagram of a conventional antenna detection fixture according to an exemplary embodiment.

Fig. 2 is a schematic structural diagram of an antenna detection fixture according to an exemplary embodiment.

Fig. 3 is a schematic diagram of a second structure of the antenna detection fixture according to an exemplary embodiment.

Fig. 4 is a schematic diagram III of a structure of an antenna detection fixture according to an exemplary embodiment.

Fig. 5 is a schematic structural diagram of a feeding component in the antenna detection jig according to an exemplary embodiment.

Fig. 6 is a schematic diagram of a structure of an antenna detection fixture according to an exemplary embodiment.

Fig. 7 is a schematic diagram of a partial enlargement of an antenna detection tool according to an exemplary embodiment.

Fig. 8 is a schematic structural diagram of a conductive block in an antenna detection jig according to an exemplary embodiment.

Fig. 9 is a schematic diagram of a structure of an antenna detection fixture according to an exemplary embodiment.

Fig. 10 is a schematic structural view of an antenna detection apparatus provided according to an exemplary embodiment.

Reference numerals:

10-antenna detection tool, 11-pick-up board, 111-accommodation groove, 12-first circuit board, 121-first through hole, 13-feed subassembly, 131-feed tip, 112-first surface, 14-signal connector, 15-second circuit board, 132-feed root, 114-second through hole, 141-first connecting port, 142-second connecting port, 113-second surface, 16-conductive grounding piece, 133-elastic telescoping piece, 134-fixed sleeve, 135-movable piece, 136-elastic piece, 17-conductive block, 181-plummer, 182-carrier plate, 183-movable mechanism, 184-positioning groove, 185-movable clamping part, 1-antenna detection equipment, 100-network analyzer, 2-terminal equipment, 20-flexible radiation body, 21-conductive foam, 22-plastic bracket, 23-metal back shell.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of structures that are consistent with some aspects of the disclosure as detailed in the appended claims.

In the related art, as shown in fig. 1a to 1c, a cavity antenna scheme of an FPC plus plastic holder 22 is adopted for a metal integrated large screen terminal device 2. As shown in fig. 1a, the cavity FPC antenna area is a flexible radiation body 20, and a FPC cavity antenna is formed by using a metal rear housing 23 of the terminal device 2 and an FPC on the plastic bracket 22. As shown in fig. 1b, the FPC antenna covers the entire surface of the plastic holder 22, and the FPC is folded over to the back surface of the plastic holder 22 and the metal rear case 23 for grounding treatment; the back of the plastic bracket 22 is used for 5 grounded conductive foam 21 and a small motherboard for feeding are also required to participate in the detection in the tooling detection. Aiming at The type of The unconventional antenna of The FPC resonant cavity, in order to improve The correlation between The S parameter of a tooling detection and an actual machine and The active radiation performance of an Over-The-Air (OTA), the purposes of detecting The consistency and The electrical performance of The FPC resonant cavity antenna are met, and a complete tooling detection environment similar to that of an actual terminal device is needed for detection; as shown in fig. 1c, the FPC cavity antenna is currently detected by using a form of adding a copper block on the surface of the motherboard and simulating a small motherboard, and this detection mode results in high fixture cost for fixture detection.

Based on this, the embodiment of the disclosure provides an antenna detection jig. Fig. 2 is a schematic structural diagram of an antenna detection jig according to an exemplary embodiment, and as shown in fig. 2, the antenna detection jig 10 may include:

a detection plate 11 having a receiving groove 111;

a first circuit board 12 which is located at a notch position close to the accommodating groove 111 in the accommodating groove 111, and which has a first through hole 121 formed in a surface facing the notch direction of the accommodating groove 111;

a feeding component 13, which is located in the accommodating groove 111, and a feeding end 131 of the feeding component 13 passes through the first through hole 121 and is exposed out of the first surface 112 of the detection board 11; wherein, in the case that the antenna detection jig 10 detects a flexible radiation body, the flexible radiation body contacts with the feeding end 131 and can enclose a cavity antenna with the first circuit board 12;

a signal connector 14 electrically connected to the feed assembly 13 and configured to transmit an electrical signal returned by the cavity antenna, so that the cavity antenna can be detected based on the returned electrical signal.

In an embodiment of the present disclosure, the flexible radiating body (not shown in fig. 2) may be an FPC antenna and can be disposed in a terminal device. The FPC antenna covers the whole surface of the plastic bracket and is folded to the back of the plastic bracket; when the flexible radiation body is contacted with the feed end part, the cavity antenna enclosed by the flexible radiation body and the first circuit board can be used for receiving and transmitting wireless signals with different frequencies. When the cavity antenna is used for transmitting wireless signals, the terminal equipment can transmit wireless signals, such as wireless communication or wireless charging.

The detection board may be a base of the antenna detection jig, and is used for carrying other devices of the antenna detection jig, for example, a first circuit board. The first circuit board may be a conductive board, such as a printed circuit board (Printed Circuit Board, PCB), for simulating a metal back shell of a terminal device in which the flexible radiating body is located. The feeding assembly may be a device for transmitting signals, and is configured to convert a wireless signal received by the flexible radiating body into an electrical signal for transmission to a signal transceiver, or transmit a feeding signal output by another device (for example, a network analyzer) to the flexible radiating body. The signal connector may be a connection port for connecting two devices for transmitting signals, for example, connecting the flexible radiation body and external other devices.

It should be noted that, the connection manner between the first circuit board and the accommodating groove may be set according to the actual application situation, which is not limited in the embodiment of the disclosure. For example, the first circuit board may be fixed in the accommodating groove at a position close to the notch of the accommodating groove by a connection manner such as a clamping connection, a welding connection or a screw fixing.

It is understood that the first circuit board is fixed at a notch position in the accommodating groove near the accommodating groove, so that a space is provided between the flexible radiation body and the first circuit board when the antenna detection jig detects the flexible radiation body.

In the embodiment of the disclosure, when the antenna detection fixture detects the flexible radiation body, the flexible radiation body may be located at a notch position of the accommodating groove, contact with the feeding end, and have a space with the first circuit board; or, the detection board is further provided with a clamping groove, the clamping groove is communicated with the accommodating groove, and when the antenna detection jig detects the flexible radiation body, the flexible radiation body can be located at a notch position of the clamping groove, which is close to the accommodating groove, contacts with the feeding end part and has a space with the first circuit board.

Here, a plurality of conductive foam is arranged on the surface of the flexible radiation body facing the first circuit board at intervals; under the condition that the flexible radiation body is contacted with the feeding end part, a plurality of conductive foam can be respectively contacted with different grounding points of the first circuit board so as to realize the grounding of the cavity antenna.

It should be noted that the size and shape of the first through hole may be set according to practical application, which is not limited in the embodiments of the present disclosure. For example, when the feeding component is a cylinder, the first through hole may be a circular hole, and correspondingly, the area of the circular hole may be greater than or equal to the area of the bottom surface of the cylinder; alternatively, when the power feeding assembly is a cuboid, the first through hole may be a rectangular hole, and correspondingly, the area of the rectangular hole may be greater than or equal to the area of the bottom surface of the cuboid, and so on; as long as the feed assembly is able to pass through the first through hole.

In embodiments of the present disclosure, the feeding assembly may be formed of a conductive material; the feeding component may be a connecting piece with a fixed shape, or may be an elastic telescopic piece, which is not limited in the embodiments of the disclosure.

It can be understood that the signal connector may be disposed at a bottom of the accommodating groove, where one end is connected to a feeding root of the feeding component, and the other end is connected to other devices (e.g., a network analyzer) located outside the antenna detection fixture, so as to realize signal transmission between the cavity antenna and the other devices.

Fig. 3 is a schematic diagram of a second structure of the antenna detection jig according to an exemplary embodiment, as shown in fig. 3, where other devices, for example, a second circuit board, are further added to the antenna detection jig shown in fig. 2.

As shown in fig. 3, the antenna detection fixture 10 may further include:

a second circuit board 15, which is located in the accommodating groove 111 near the bottom of the accommodating groove 111 and is spaced from the first circuit board 12;

a feeding root 132 of the feeding component 13 is fixed on the second circuit board 15;

the signal connector 14 is located on a side of the second circuit board 15 facing away from the first circuit board 12.

Therefore, the signal connector and the feed component are arranged on the second circuit board which is arranged at intervals with the first circuit board, so that signal transmission between the feed component and other external equipment connected with the signal connector is realized, and the detection efficiency of the cavity antenna is improved.

The second circuit board may be a PCB board; the feed root and the feed end may be located at opposite ends of the feed assembly; the feeding assembly and the signal connector may be disposed on opposite sides of the second circuit board.

Here, the power feeding assembly and the signal connector may communicate on the second circuit board. The second circuit board may be parallel to the first circuit board, and an area of the second circuit board may be smaller than or equal to an area of the first circuit board.

It should be noted that, the distance between the second circuit board and the first circuit board may be set according to practical application, which is not limited in the embodiments of the present disclosure.

In one embodiment of the present disclosure, as shown in fig. 3, the bottom of the accommodating groove 111 has a second through hole 114;

the signal connector 14 includes a first connection port 141 and a second connection port 142;

the first connection port 141 is fixed on the second circuit board 15 and electrically connected to the feeding module 13;

the second connection port 142 is exposed on the second surface 113 of the detection plate 11 through the second through hole 114, and the second surface 113 and the first surface 112 are two opposite surfaces of the detection plate 11.

Therefore, the first connecting port of the signal connector can be electrically connected with the feed assembly, and the second connecting port is electrically connected with other external equipment through the second through hole, so that signal transmission between the feed assembly and the other external equipment is realized, and the detection efficiency of the cavity antenna is improved.

In this embodiment of the disclosure, the first connection port is fixed on a side of the second circuit board facing away from the first circuit board, and the first connection port is communicated with the second connection port; the first connection port is communicated with the feed assembly on the second circuit board; the second connection port is connected to an external device (e.g., a network analyzer) through the second through hole.

It should be noted that, the specific position of the second through hole may be set according to the position of the signal connector in practical application, which is not limited in the embodiment of the present disclosure. For example, the second through hole may be located on the same line perpendicular to the horizontal plane as the first through hole; alternatively, the second through holes may be staggered with the first through holes.

In some embodiments, as shown in fig. 4, the antenna detection fixture 10 may further include:

and a conductive grounding member 16 connecting the grounding point of the first circuit board 12 and the grounding point of the second circuit board 15 and being located at opposite ends of the second circuit board 15 with the feeding component 13, respectively.

In this way, the second circuit board is grounded and the relative fixation between the second circuit board and the first circuit board is realized by arranging a conductive grounding piece between the grounding point of the first circuit board and the grounding point of the second circuit board.

Here, the conductive grounding member may be a connection post including a conductive wire; the wire may connect the ground point of the first circuit board and the ground point of the second circuit board to achieve the ground of all devices disposed on the second circuit board.

In an embodiment, one end of the second circuit board may be fixedly connected to the first circuit board through the conductive grounding member; the other end of the second circuit board may be fixed in the accommodating groove at a position close to the bottom of the accommodating groove by a connection method including but not limited to clamping, welding or screw fixing.

It should be noted that, the specific shape of the conductive grounding member may be set according to practical application conditions, which is not limited in the embodiments of the present disclosure. For example, the conductive grounding member may be a cylinder, or the conductive grounding member may be a rectangular parallelepiped, or the like.

In one embodiment of the present disclosure, as shown in fig. 5, the feeding assembly 13 is an elastic telescopic member 133, and the feeding end 131 is movable relative to the feeding root 132 along a telescopic direction of the elastic telescopic member 133;

in the case where the flexible radiation body is in contact with the feeding end 131, the feeding end 131 moves toward a direction of shortening a distance between the feeding end 131 and the feeding root 132.

Therefore, the feeding assembly can be an elastic telescopic piece, and when the antenna detection jig detects the flexible radiation body, the flexible radiation body is better contacted with the feeding end part.

Here, the elastic expansion member may be a spring needle (pogo pin); the spring pin is a precise connector applied to electronic products such as mobile phones, and is widely applied to semiconductor equipment to play a role in connection.

It should be noted that the conductive grounding member may be a spring pin, so as to better implement grounding of the second circuit board.

In some embodiments, as shown in fig. 5, the elastic expansion member 133 includes:

a stationary sleeve 134;

a movable member 135, one part of which is located inside the fixed sleeve 134, and the other part of which is exposed outside the fixed sleeve 134;

an elastic member 136 having one end fixed to an inner bottom wall of the fixed sleeve 134 and the other end fixedly connected to an end surface of the movable member 135 facing an inner bottom wall of the fixed sleeve 134, and configured to be elastically deformed when the flexible radiating body is in contact with the feeding end 131;

the feeding end 131 is located at one end of the movable member 135 away from the elastic member 136, and can be abutted against the flexible radiation body 20 under the action of the deformation restoring force based on the elastic deformation.

Therefore, the feeding end part can be abutted with the flexible radiation body through the elastic piece arranged between the movable piece and the fixed sleeve based on the deformation restoring force corresponding to the elastic deformation of the elastic piece, so that the contact between the flexible radiation body and the feeding end part is better realized.

In an embodiment of the disclosure, the fixing sleeve may be an annular sleeve having a bottom wall; the inner diameter of the fixed sleeve may be matched with the diameter of the feeding end of the movable member so that the movable member can be extended and contracted with respect to the fixed sleeve.

Here, the elastic member includes, but is not limited to, a leaf spring, a coil spring, a torsion bar spring, a gas spring, a rubber spring, and the like. When the flexible radiation body is contacted with the feed end part, the magnitude of the acting force applied by the flexible radiation body to the elastic piece for elastic deformation does not exceed the acting force threshold value for the elastic piece to recover deformation.

It should be noted that, the fixing manner between the elastic member and the inner bottom wall of the fixed sleeve and between the elastic member and the movable member may be set according to practical application conditions, which is not limited in the embodiments of the present disclosure. For example, the elastic member may be fixedly connected to the inner bottom wall of the fixing sleeve by welding or bonding; alternatively, the elastic member may be fixedly coupled to an end surface of the movable member facing the inner bottom wall of the fixed sleeve by welding or bonding.

In an embodiment of the present disclosure, in combination with fig. 6, 7 and 8, the antenna detection fixture 10 may further include:

a conductive block 17 which is located on a surface of the first circuit board 12 facing the notch direction of the accommodating groove 111 and is connected to a ground point of the first circuit board 12;

in the case where the flexible radiating body 20 is in contact with the feeding end 131, the conductive block 17 is in contact with the conductive foam 21 of the flexible radiating body 20; wherein, the conductive blocks 17 are plural, and the plural conductive blocks 17 are distributed at different positions of the first circuit board 12.

Therefore, the conductive block is arranged on the surface of the first circuit board facing the notch direction of the accommodating groove, so that the conductive block can be contacted with conductive foam of the flexible radiation body under the condition that the flexible radiation body is contacted with the feed end part, the grounding of the cavity antenna is better realized, and the detection stability of the cavity antenna is improved; meanwhile, the antenna detection jig is more convenient to maintain and replace in the follow-up process.

Here, the conductive block may be a metal block, or other materials capable of conducting electricity, such as a graphite block.

In the embodiment of the disclosure, under the condition that the flexible radiating body is in contact with the feeding end portion, the conductive foam may be located between the flexible radiating body folded to the back surface of the plastic bracket and the conductive block.

It is understood that the size of the conductive block may be matched with the size of the conductive foam; the position of the conductive block arranged on the first circuit board can be the same as the position of the conductive foam arranged on the flexible radiation body when the flexible radiation body is contacted with the feed end part, so that the conductive block is contacted with the conductive foam.

It should be noted that, the specific number of the conductive blocks may be set according to practical application conditions, which is not limited in the embodiments of the present disclosure. For example, the number of the conductive blocks may be 4, 5 or 6, etc.

In an embodiment, the connection part of the conductive block and the first circuit board is provided with a copper exposure gold-plating structure, so that the electrical connection between the conductive block and the first circuit board is better realized, and the stability of cavity antenna detection is improved.

In the embodiment of the disclosure, when the antenna detection jig detects the flexible radiation body, the flexible radiation body may be directly placed at a notch of the accommodating groove of the detection board, so that the flexible radiation body contacts with the feed end portion, so as to realize detection of the cavity antenna; or, the flexible radiation body may be placed on a carrier plate that can be matched with the detection plate, so that the flexible radiation body contacts with the feeding end portion, and detection of the cavity antenna is achieved.

Fig. 9 is a schematic diagram of a structure of an antenna detection jig according to an exemplary embodiment, as shown in fig. 9, other devices, such as a bearing table, a bearing plate, and a moving mechanism, are further added to the antenna detection jig shown in fig. 2.

Referring to fig. 2 and 9, the antenna detection fixture 10 may further include:

a carrying table 181;

a bearing plate 182, which is located on the bearing platform 181 and is formed with a positioning groove 184;

a movable mechanism 183 provided on the same side of the carrier 181 as the carrier 182 and having a movable clamping portion 185; the movable clamping portion 185 is configured to clamp the detection plate 11 and can drive the detection plate 11 to move towards the positioning slot 184 in a direction perpendicular to the bearing plate 182;

in the case of detecting the flexible radiation body 20, the flexible radiation body 20 is located in the positioning groove 184, and the movable clamping portion 185 drives the detection plate 11 to move, so that the flexible radiation body 20 in the positioning groove 184 can contact the feeding end 131.

In an embodiment of the disclosure, the carrying platform may be a base of the antenna detection fixture; the carrier plate may be a substrate for accommodating the flexible radiation body; the movable mechanism may be a device capable of moving the detection plate; the movable holding portion is a member capable of holding the detection plate and moving.

When the movable clamping part clamps the detection plate, the notch direction of the accommodating groove faces the bearing plate; under the condition that the antenna detection jig detects the flexible radiation body, the conductive foam of the flexible radiation body faces the detection plate.

Here, the size of the positioning groove may be matched with the size of the accommodating groove, so that the flexible radiating body may contact with the feeding end portion when the movable clamping portion drives the detecting plate to move.

It can be appreciated that when the flexible radiating body is in contact with the feeding end portion, a part of the flexible radiating body may be located in the positioning groove, and another part of the flexible radiating body may be located in the accommodating groove, so that stability of detecting the cavity antenna is better improved.

According to the antenna detection jig, the detection plate is clamped on the movable clamping part, and the flexible radiation body is arranged in the positioning groove of the bearing plate, so that the movable clamping part drives the detection plate to move under the condition of detecting the flexible radiation body, the flexible radiation body can contact the feed end part, the complete tool detection environment similar to that of an actual terminal device is simulated, the purpose of detecting the consistency and the electrical performance of the FPC cavity antenna is met, the correlation between the S parameter of the tool detection and the correlation between the S parameter of the actual machine and the OTA active radiation performance is improved, the detection cost of the cavity antenna is reduced, the detection step of the cavity antenna is simplified, and the efficiency and the stability of the cavity antenna detection are improved.

Fig. 10 is a schematic structural view of an antenna detection apparatus provided according to an exemplary embodiment. As shown in fig. 10, an antenna detection apparatus provided in an embodiment of the present disclosure, the antenna detection apparatus 1 may include:

the antenna detection jig 10 as proposed in the above embodiment of the present disclosure;

the network analyzer 100 is connected to the signal connector 14 of the antenna detection jig 10, and is configured to detect the cavity antenna based on an electric signal returned by the cavity antenna enclosed by the flexible radiation body 20 and the first circuit board 12 of the antenna detection jig 10.

The network analyzer is a comprehensive microwave measuring instrument capable of scanning and measuring in a wide frequency band to determine network parameters, and is called a microwave network analyzer. The network analyzer is a new instrument for measuring network parameters, can directly measure complex scattering parameters of active or passive, reversible or irreversible double-port and single-port networks, and gives out the amplitude and phase frequency characteristics of each scattering parameter in a sweep frequency mode.

Here, the network analyzer may not only transmit a feeding signal to the cavity antenna through the signal connector; and the signal connector can be used for receiving the electric signal returned by the cavity antenna and analyzing and detecting the related performance of the cavity antenna based on the electric signal.

In one embodiment of the present disclosure, the network analyzer includes:

a device communication port;

So, can be through signal connector with antenna detection tool and network analyzer connection for the signal generation module of network analyzer sends the feed signal to cavity antenna, and through this feed signal with receive the signal that cavity antenna returned, carry out analysis and detection to cavity antenna, thereby improve the efficiency to cavity antenna detection.

Here, the device communication port may be located on a housing of the network analyzer; the signal generating module and the analyzing module can be both positioned in the network analyzer; the display device may be a display screen of the network analyzer.

According to the antenna detection equipment provided by the embodiment of the disclosure, under the condition of detecting the flexible radiation body, the flexible radiation body is arranged in the positioning groove of the antenna detection jig, the detection plate of the antenna detection jig is fixedly clamped on the movable clamping part, the movable clamping part can drive the detection plate to move, the flexible radiation body is in contact with the feed end part in the detection plate, the equipment communication port of the network analyzer is connected with the signal connector of the antenna detection jig through the flexible cable, the connection of the antenna detection jig and the network analyzer is realized, and therefore the complete tool detection environment similar to that of an actual terminal device is simulated, the purposes of detecting the consistency and the electrical performance of the FPC cavity antenna are met, the S parameter of the tool detection and the correlation of the OTA active radiation performance are improved, the detection cost of the cavity antenna is reduced, the detection step of the cavity antenna is simplified, and the efficiency and the stability of the cavity antenna detection are improved.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An antenna detection tool, its characterized in that, antenna detection tool includes:

the detection plate is provided with an accommodating groove;

2. The antenna detection jig of claim 1, wherein the antenna detection jig further comprises:

the feed root of the feed assembly is fixed on the second circuit board;

3. The antenna detection jig according to claim 2, wherein a bottom of the accommodating groove is provided with a second through hole;

4. The antenna detection jig of claim 2, wherein the antenna detection jig further comprises:

5. The antenna detection jig according to any one of claims 1 to 4, wherein the feeding assembly is an elastic expansion member, and the feeding end portion is movable in an expansion direction of the elastic expansion member with respect to a feeding root portion of the feeding assembly;

6. The antenna detection jig of claim 5, wherein the elastic telescoping member comprises:

a fixed sleeve;

7. The antenna detection jig according to any one of claims 1 to 4, further comprising:

8. The antenna detection jig according to claim 7, wherein a connection part of the conductive block and the first circuit board has a copper exposure gold plating structure.

9. The antenna detection jig according to any one of claims 1 to 4, further comprising:

a carrying platform;

10. An antenna detection apparatus, characterized by comprising:

the antenna detection jig according to any one of claims 1 to 9;

11. The antenna detection apparatus according to claim 10, wherein the network analyzer comprises:

a device communication port;