Antenna testing device

Abstract

The utility model discloses an antenna testing device, relates to the technical field of antenna testing equipment, and aims to solve the problems that when a terminal is assembled, a worker can know the condition of the antenna only by using a tester to sequentially test different antennas in the terminal in turn, the alternate test is relatively tedious and the test efficiency is low. The tester mainly comprises a tester main body, a display screen, a controller panel, an inner groove and a test interface, a test module in the tester main body is provided with a radio frequency modem chip U5, 2T switches U3 and U4, couplers U1 and U2 and other elements, through cooperative work of the elements, a radio frequency emission signal is connected with a TRX antenna through the couplers, the couplers transmit part of the signal to the radio frequency modem chip U5, and when the signal is emitted, the radio frequency modem chip U5 is connected with a TRX antenna through the couplers. The 2T switch switches the RX antenna to the signal receiving port and then connects the RX antenna to the radio frequency modem chip U5, and the radio frequency modem chip U5 detects the radio frequency signal strength to obtain the isolation between the antennas so as to judge the installation condition of the antennas, thereby achieving the rapid test of the internal antennas of the terminal.

Description

Technical Field

[0001] The utility model relates to the technical field of antenna testing equipment, in particular to an antenna testing device. Background Art

[0002] 5G terminals are devices capable of accessing and using 5G networks for communication and data processing. They offer high-speed connectivity, enabling data transfer rates of several gigabits per second, allowing users to quickly download large files, watch high-definition videos, and play online games. They also feature low latency, down to milliseconds, making them crucial for applications requiring extremely high real-time performance, such as autonomous driving, industrial automation, and telemedicine. They also typically offer robust multi-device connectivity, enabling simultaneous interoperability between multiple devices and creating a smarter living and working environment.

[0003] 5G terminals contain multiple antennas. After assembly, the installation status of each antenna needs to be tested. Therefore, an antenna testing device is required for testing. For example, patent publication number CN220289645U discloses a portable antenna tester comprising: a tester body having a first surface and a second surface facing each other; a display screen fixedly mounted on the first surface of the tester body; control buttons disposed on the first surface of the tester body; and a restraint assembly comprising at least one restraint strap, wherein both ends of the restraint strap are disposed on the second surface of the tester body, and the length of the restraint strap exposed outside the tester body is variable. Testing requires the use of special instrumentation. However, during terminal assembly, workers typically use a tester to test each antenna in turn. Only after testing all antennas in sequence can the antenna installation status be determined. Testing each antenna individually is not only cumbersome but also results in inefficient testing.

[0004] In view of the above problems, an antenna testing device is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide an antenna testing device, which solves the problem that when assembling a terminal, staff generally use a tester to test different antennas inside the terminal in turn to understand the antenna conditions, and the turn-by-turn testing is cumbersome and the test efficiency is low.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an antenna testing device, comprising a tester body and a display screen embedded in the outer wall of the front end cover of the tester body, a controller panel embedded in the outer wall of the tester body below the display screen, a test module disposed inside the tester body, the test module being electrically connected to the controller panel, an inner groove disposed on one side of the top of the tester body, and test interfaces evenly spaced on the bottom plate of the inner groove, the test module comprising a radio frequency modem chip U5, pin No. 1 of the radio frequency modem chip U5 being connected to the FBRX detection port, pin No. 5 and pin No. 9 of the radio frequency modem chip U5 being connected to pin No. 3 of the 2T switch U3 and pin No. 5 of the 2T switch U3 and pin No. 9 of the 2T switch U4 being connected to pin No. 3 of the 2T switch U3 and pin No. 5 of the 2T switch U4 Pin No. 1 is connected to pin No. 1 of antenna ANT3 and ANT4 respectively, antenna ANT3 and ANT4 are RX antennas, and pin No. 1 of 2T switches U3 and U4 is respectively connected to a signal receiving port RX3, pin No. 3 and pin No. 11 of RF modem chip U5 are respectively connected to pin No. 6 of couplers U1 and U2, pin No. 1 of couplers U1 and U2 are respectively connected to TRX1 port and TRX2 port, pin No. 3 of couplers U1 and U2 are respectively connected to pin No. 1 of antenna ANT1 and ANT2, antenna ANT1 and ANT2 are TRX antennas, and pin No. 4 of couplers U1 and U2 are respectively connected to resistor R1 and resistor R2, and the other ends of resistor R1 and resistor R2 are both connected to the ground wire.

[0007] Furthermore, pins 2, 4, 10 and 12 of the radio frequency modem chip U5 are all connected to the ground line, and pin 6 is connected to the VCC port.

[0008] Furthermore, pin 1 of the couplers U1 and U2 is a signal input port, pin 3 is a signal output port, and pin 6 is a coupling port.

[0009] Furthermore, pin No. 4 of the couplers U1 and U2 is an isolation port, and the resistance values ​​of the resistor R1 and the resistor R2 connected to the pin No. 4 of the couplers U1 and U2 are both 50 ohms.

[0010] Furthermore, pins 2 and 5 of the couplers U1 and U2 are respectively connected to the ground line.

[0011] Furthermore, pins 2 of the 2T switches U3 and U4 are connected to the ground line respectively, and pins 4 of the 2T switches U3 and U4 are connected to the VCC port respectively.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] The utility model proposes an antenna testing device, which connects the radio frequency transmission signal to the antennas ANT1 and ANT2 through the No. 1 pins of the couplers U1 and U2, and transmits part of the transmission signal to the radio frequency modem chip U5 through the No. 6 pins of the couplers U1 and U2 for detection. When transmitting the signal, the 2T switches U3 and U4 can switch the antennas ANT3 and ANT4 to the signal receiving port RX3 and then connect them to the radio frequency modem chip U5. The radio frequency modem chip U5 detects the radio frequency signal strength transmitted from the TRX antenna and the signal strength received by the RX antenna through the FBRX detection port of the WTR connected to its No. 1 pin, and then obtains the isolation between the antennas by subtracting the signal strength detected by the RX port antenna from the signal strength detected by the TX coupler, and judges the installation status of the antennas, thereby realizing rapid testing of all antennas inside the terminal, avoiding the trouble of testing in turn, and being efficient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the circuit principle of the test module of the utility model;

[0016] Figure 3 This is a test module architecture diagram of the present utility model;

[0017] Figure 4 This is a test module detection flow chart of the present utility model.

[0018] In the figure: 1. Tester body; 2. Display screen; 3. Controller panel; 4. Inner groove; 5. Test interface. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0021] To solve the problem that when the terminal is assembled, the staff use the tester to test the different antennas inside the terminal in turn to understand the antenna conditions. The test is cumbersome and the test efficiency is low. Figures 1-4 , provide the following preferred technical solutions:

[0022] The present invention provides an antenna testing device, comprising a tester body 1, which serves as the main load-bearing portion of the device. A display screen 2 is embedded in the outer wall of the front cover of the tester body 1 for displaying information such as test results. A controller panel 3 is embedded in the outer wall of the tester body 1 below the display screen 2, through which the test can be operated and controlled. The test module within the tester body 1 is the core component for implementing antenna testing. This module is electrically connected to the controller panel 3 to receive control instructions and feedback test data. Test interfaces 5 are evenly spaced on the bottom plate of the inner groove 4 on one side of the top of the tester body 1 for connecting to the antenna to be tested.

[0023] The present invention will be further described below with reference to the embodiments.

[0024] In the test module, the RF modem chip U5 plays a key role. Pin 1 of the chip is connected to the FBRX detection port, which detects the power difference between the RF transmit port and the RF receive port to determine antenna installation status. Pins 5 and 9 of U5 are connected to pins 3 of 2T switches U3 and U4, respectively. Pins 5 of 2T switches U3 and U4 are connected to the RX antennas (antennas ANT3 and ANT4), respectively, and pins 1 of U3 and U4 are each connected to a signal receiving port, RX3. Pins 3 and 11 of U5 are connected to pins 6 of couplers U1 and U2, respectively. Pins 1 of couplers U1 and U2 are connected to TRX1 and TRX2, respectively, and pins 3 of couplers U1 and U2 are connected to the TRX antennas (antennas ANT1 and ANT2). Pins 4 of couplers U1 and U2 are isolation ports, connected to resistors R1 and R2, respectively. Both resistors have a resistance of 50 ohms, and the other ends of each resistor are connected to ground. At the same time, pins 2 and 5 of couplers U1 and U2 are also connected to ground, respectively. Pin 2 of 2T switches U3 and U4 is connected to ground, and pin 4 is connected to VCC. Pins 2, 4, 10, and 12 of RF modem chip U5 are all connected to ground, and pin 6 is connected to VCC.

[0025] Specifically, during the test, the RF transmission signal is connected to the TRX antenna (antenna ANT1 and ANT2) through couplers U1 and U2 (pin 1 of which is the signal input port). Couplers U1 and U2 can couple the transmission signal, and their pin 6 is the coupling port, which can transmit part of the transmission signal to the RF modem chip U5 for detection; when transmitting the signal, 2T switches U3 and U4 switch the RX antenna (antenna ANT3 and ANT4) to the signal receiving port RX3, and then connect it to the RF modem chip U5. The RF modem chip U5 detects the RF signal strength emitted from the TRX antenna and the signal strength received by the RX antenna through the FBRX detection port of the WTR connected to its pin 1. The signal strength detected by the RX port antenna is subtracted from the signal strength detected by the TX coupler to obtain the isolation between the antennas, and then the installation status of the antennas can be judged, thereby realizing rapid testing of all antennas inside the terminal, avoiding the trouble of testing each antenna in turn, and being efficient and practical.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An antenna testing device, comprising a tester body (1) and a display screen (2) embedded in the outer wall of the front end cover of the tester body (1), a controller panel (3) embedded in the outer wall of the tester body (1) below the display screen (2), a test module disposed inside the tester body (1), the test module being electrically connected to the controller panel (3), an inner groove (4) disposed on one side of the top of the tester body (1), and test interfaces (5) uniformly spaced on the bottom plate of the inner groove (4), characterized in that: The test module includes a RF modem chip U5, pin 1 of the RF modem chip U5 is connected to the FBRX detection port, pins 5 and 9 of the RF modem chip U5 are respectively connected to pin 3 of the 2T switches U3 and U4, pins 5 of the 2T switches U3 and U4 are respectively connected to pin 1 of antennas ANT3 and ANT4, antennas ANT3 and ANT4 are RX antennas, and pins 1 of the 2T switches U3 and U4 are each connected to a signal receiving port RX3, pins 3 and 11 of the RF modem chip U5 are respectively connected to pin 6 of couplers U1 and U2, pins 1 of couplers U1 and U2 are respectively connected to TRX1 port and TRX2 port, pins 3 of couplers U1 and U2 are respectively connected to pin 1 of antennas ANT1 and ANT2, antennas ANT1 and ANT2 are TRX antennas, and pins 4 of couplers U1 and U2 are respectively connected to resistors R1 and R2, and the other ends of resistors R1 and R2 are both connected to the ground wire.

2. The antenna testing device according to claim 1, wherein: Pins 2, 4, 10 and 12 of the radio frequency modem chip U5 are all connected to the ground line, and pin 6 is connected to the VCC port.

3. The antenna testing device according to claim 1, wherein: Pin 1 of the couplers U1 and U2 is a signal input port, pin 3 is a signal output port, and pin 6 is a coupling port.

4. The antenna testing device according to claim 3, wherein: Pin No. 4 of the couplers U1 and U2 is an isolation port, and the resistance values ​​of the resistor R1 and the resistor R2 connected to the pin No. 4 of the couplers U1 and U2 are both 50 ohms.

5. The antenna testing device according to claim 4, characterized in that: Pins 2 and 5 of the couplers U1 and U2 are respectively connected to the ground wire.

6. The antenna testing device according to claim 5, characterized in that: Pins 2 of the 2T switches U3 and U4 are connected to the ground line respectively, and pins 4 of the 2T switches U3 and U4 are connected to the VCC port respectively.

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