T-shaped waveguide power divider and communication equipment

Abstract

The invention relates to the technical field of wireless communication, in particular to a T-shaped waveguide power divider and communication equipment. The T-shaped waveguide power divider comprises an input waveguide, a wave dividing waveguide and an output waveguide. The branching waveguide comprises a branching body, a first branch and a second branch, one end of the branching body is connected with the end of the input waveguide, and the other end of the branching body is connected with the first branch and the second branch which are arranged at an interval. The output waveguide comprises a first branch output waveguide and a second branch output waveguide which extend along the width direction of the input waveguide, the first branch output waveguide is connected with one end of the first branch far away from the branching main body, and the second branch output waveguide is connected with one end of the second branch far away from the branching main body. The connection position of the inner side surface of the first branch and the wave division main body and the connection position of the inner side surface of the second branch and the wave division main body are arranged to be fillets.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and in particular to a T-type waveguide power divider and communication equipment. Background Art

[0002] In the field of wireless communications, power dividers are often used to divide signal power into at least two signals in a certain ratio to achieve simultaneous output of multiple signals while ensuring the amplitude and phase characteristics of the multiple signals. Waveguide power dividers are widely used due to their low insertion loss and high power capacity, while T-type waveguide power dividers directly determine the bandwidth used by the antenna. Traditional T-type waveguide power dividers have narrow bandwidth and high return loss.

[0003] In the prior art, in order to increase the bandwidth, a stepped waveguide impedance transformer is usually provided to increase the bandwidth, but the stepped waveguide impedance transformer will occupy a large amount of space. Summary of the invention

[0004] The invention provides a T-type waveguide power divider for increasing bandwidth.

[0005] In a first aspect, the present invention provides a T-type waveguide power divider, comprising:

[0006] Input waveguide;

[0007] A wave splitting waveguide, the wave splitting waveguide comprising a wave splitting body, a first branch and a second branch, one end of the wave splitting body being connected to an end of the input waveguide, and the other end of the wave splitting body being connected to the first branch and the second branch which are spaced apart; and

[0008] An output waveguide, the output waveguide comprising a first branch output waveguide and a second branch output waveguide extending in a width direction of the input waveguide, the first branch output waveguide connecting an end of the first branch away from the wave splitting body, and the second branch output waveguide connecting an end of the second branch away from the wave splitting body;

[0009] Wherein, the connection position between the inner side surface of the first branch and the wave splitting body and the connection position between the inner side surface of the second branch and the wave splitting body are both set to be rounded.

[0010] Optionally, an end surface of the wave splitting body used for connecting the first branch and the second branch is provided with an arc surface, and the arc surface is connected between an inner side surface of the first branch and an inner side surface of the second branch.

[0011] Optionally, the width of the input waveguide is smaller than the width of the wave splitting body, and the connection positions between two opposite side surfaces of the input waveguide and the wave splitting body are both configured as rounded corners.

[0012] Optionally, the connection positions between the two side surfaces of the wave splitting body and the end surface of the wave splitting body connected to the input waveguide are both set to be rounded corners.

[0013] Optionally, a connection position between an inner side surface of the first branch and the first branch output waveguide and a connection position between an inner side surface of the second branch and the second branch output waveguide are both configured as rounded corners.

[0014] Optionally, a connection position between an outer side surface of the first branch and the first branch output waveguide and a connection position between an outer side surface of the second branch and the second branch output waveguide are both set to be rounded.

[0015] In a second aspect, the present invention further provides a communication device, comprising:

[0016] A housing, wherein the housing is provided with a first cavity and a second cavity that are connected;

[0017] A radio frequency module, the radio frequency module is arranged in the first cavity, and the radio frequency module includes the T-type waveguide power divider as described above;

[0018] a control module, which is disposed in the second cavity and electrically connected to the radio frequency module; and

[0019] A power module is disposed in the second cavity and is electrically connected to the control module.

[0020] Optionally, the radio frequency module further includes:

[0021] A baseband board, which is disposed at the bottom of the first cavity and is electrically connected to the control module;

[0022] A millimeter wave radio frequency board, which is spaced apart from the baseband board and electrically connected to the baseband board;

[0023] A curved waveguide, which is electrically connected to the millimeter wave radio frequency board, and the curved waveguide is connected to an end of the input waveguide away from the branch waveguide;

[0024] a first antenna connected to an end of the first branch output waveguide away from the first branch; and

[0025] The second antenna is connected to an end of the second branch output waveguide away from the second branch.

[0026] Optionally, an end of the first antenna away from the first branch output waveguide and an end of the second antenna away from the second branch output waveguide are both configured to be rectangular.

[0027] Optionally, two opposite side walls of the shell are each provided with an antenna cover, and the two antenna covers are respectively opposite to the first antenna and the second antenna.

[0028] The present application provides a T-type waveguide power splitter and a communication device, which have at least the following beneficial effects compared with the prior art:

[0029] The T-type waveguide power divider provided in the embodiment of the present application can divide the electromagnetic wave into two output paths, thereby realizing signal branching; compared with the prior art that usually sets a step waveguide to increase the thickness of each part of the T-type waveguide power divider provided in the present embodiment, the thickness of each part is roughly the same, and at the same time, the connection position of the inner side surface of the first branch and the end face of the split waveguide and the connection position of the inner side surface of the second branch and the end face of the split waveguide are both set to rounded corners, thereby increasing the bandwidth while avoiding increasing the space occupation of the T-type waveguide power divider. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the accompanying drawings.

[0031] Figure 1 is a schematic structural diagram of a T-type waveguide power divider provided in an embodiment of the present invention;

[0032] Figure 2 is a simulation result diagram provided by an embodiment of the present invention;

[0033] Figure 3 is an assembly diagram of a communication device provided by an embodiment of the present invention;

[0034] Figure 4 It is an exploded diagram of a communication device provided by an embodiment of the present invention.

[0035] Reference numerals:

[0036] 1-T type waveguide power divider;

[0037] 11- input waveguide;

[0038] 12-wave splitting waveguide; 121-wave splitting body; 1211-arc surface; 122-first branch; 123-second branch;

[0039] 13-output waveguide; 131-first branch output waveguide; 132-second branch output waveguide;

[0040] 2- Communication equipment;

[0041] 21-shell; 211-first cavity; 212-second cavity; 213-radome; 214-bottom plate; 215-enclosing plate; 216-cover plate;

[0042] 22-RF module; 221-baseband board; 222-millimeter wave RF board; 223-bend waveguide; 224-first antenna; 225-second antenna;

[0043] 23- control module;

[0044] 24-power module;

[0045] 25-Server motherboard;

[0046] 26-Mounting plate. DETAILED DESCRIPTION

[0047] The present invention will be further described below in conjunction with the accompanying drawings.

[0048] See also Figure 1 In the first aspect, an embodiment of the present invention provides a T-type waveguide power divider 1, comprising an input waveguide 11, a split waveguide 12 and an output waveguide 13. The split waveguide 12 comprises a split wave main body 121, a first branch 122 and a second branch 123, one end of the split wave main body 121 is connected to the end of the input waveguide 11, and the other end of the split wave main body 121 is connected to the first branch 122 and the second branch 123 which are arranged at intervals. The output waveguide 13 comprises a first split output waveguide 131 and a second split output waveguide 132 extending along the width direction of the input waveguide 11, the first split output waveguide 131 is connected to an end of the first branch 122 away from the split wave main body 121, and the second split output waveguide 132 is connected to an end of the second branch 123 away from the split wave main body 121. The connection position of the inner side surface of the first branch 122 and the split wave main body 121 and the connection position of the inner side surface of the second branch 123 and the split wave main body 121 are both set as rounded corners.

[0049] It should be noted that the appearance of the T-type waveguide power divider 1 provided in the embodiment of the present application can be as follows: Figure 1 The shape shown can also be other shapes and have openings such as Figure 1 The internal passage shown is not limited here.

[0050] The waveguide power divider is a passive device used in wireless communication systems, and its main function is to evenly distribute the input electromagnetic wave power to multiple output ports. Therefore, the shape of the T-type waveguide power divider 1, i.e., the waveguide power divider, is roughly in the shape of the letter "T".

[0051] The T-type waveguide power divider 1 provided in the embodiment of the present invention comprises an input waveguide 11 which is roughly rectangular, and the two ends of the input waveguide 11 in the length direction are respectively a first input end and a first output end. One end of a split wave main body 121 of a split waveguide 12 is connected to the first output end of the input waveguide 11, and a first branch 122 and a second branch 123 of the split waveguide 12 are arranged at the other end of the split wave main body 121 at intervals along the width direction of the input waveguide 11. The first branch 122 and the second branch 123 are also roughly rectangular, and the length direction of the first branch 122 and the length direction of the second branch 123 are roughly the same as the length direction of the input waveguide 11. The shapes of the first branch output waveguide 131 and the second branch output waveguide 132 of the output waveguide 13 may also be substantially rectangular, wherein the two ends of the first branch output waveguide 131 in its length direction are respectively the second input end and the second output end, the second input end is connected to the end of the first branch 122 away from the wave splitting body 121, and the length direction of the first branch output waveguide 131 may be substantially the same as the width direction of the input waveguide 11; similarly, the two ends of the second branch output waveguide 132 in its length direction are respectively the third input end and the third output end, the third input end is connected to the end of the second branch 123 away from the wave splitting body 121, the length direction of the second branch output waveguide 132 may be substantially the same as the width direction of the input waveguide 11, and the extension direction of the second branch output waveguide 132 is substantially opposite to the extension direction of the first branch output waveguide 131, that is, the second input end and the third input end are adjacent to each other, the second output end is located on the side of the second input end away from the third input end, and the third output end is located on the side of the third input end away from the second input end.

[0052] It should be noted that the thicknesses of the input waveguide 11 , the split waveguide 12 , and the output waveguide 13 are substantially the same, and the thickness directions of the input waveguide 11 , the split waveguide 12 , and the output waveguide 13 are also substantially the same.

[0053] The working principle of this embodiment is:

[0054] After the electromagnetic wave enters from the first input end of the input waveguide 11 and enters the wave splitting body 121 of the wave splitting waveguide 12 through the first output end, the electromagnetic wave is divided into two paths and enters the first branch 122 and the second branch 123 respectively. The electromagnetic wave transmitted through the first branch 122 enters the second input end of the first branch output waveguide 131 and is finally output from the second output end. The electromagnetic wave transmitted through the second branch 123 enters the third input end of the second branch output waveguide 132 and is finally output from the third output end.

[0055] In addition, the inner side surface of the first branch 122 refers to the side surface facing the second branch 123 in the width direction thereof, and the inner side surface of the second branch 123 refers to the side surface facing the first branch 122 in the width direction thereof. The connection position of the inner side surface of the first branch 122 and the end surface of the splitter body 121 away from the input waveguide 11 and the connection position of the inner side surface of the second branch 123 and the end surface of the splitter body 121 away from the input waveguide 11 are both set as rounded corners, which can perform gradient line impedance transformation, thereby increasing the working bandwidth.

[0056] In summary, the T-type waveguide power splitter 1 provided in the embodiment of the present application can split the electromagnetic wave into two output paths, thereby realizing signal splitting. Compared with the prior art that usually sets a stepped waveguide, the thickness of each part of the T-type waveguide power splitter 1 provided in this embodiment is roughly the same, and the connection position of the inner side surface of the first branch 122 and the end surface of the split waveguide 12 and the connection position of the inner side surface of the second branch 123 and the end surface of the split waveguide 12 are both set to rounded corners, which can increase the bandwidth while reducing the space occupied by the T-type waveguide power splitter 1.

[0057] Please continue reading Figure 1 In some embodiments, the end surface of the wave splitting body 121 used to connect the first branch 122 and the second branch 123 is provided with an arc surface 1211, and the arc surface 1211 is connected between the inner side surface of the first branch 122 and the inner side surface of the second branch 123.

[0058] In this embodiment, the end face of the wave splitter body 121 facing away from the input waveguide 11 is provided with an arc surface 1211 connected between the inner side surface of the first branch 122 and the inner side surface of the second branch 123. The arc surface 1211 is recessed toward the input waveguide 11 relative to the end face, and the arc surface 1211 can be roughly parallel to the thickness direction of the wave splitter body 121.

[0059] The arc surface 1211 can be smoothly connected to the rounded corner at the connection position between the inner side surface of the first branch 122 and the end surface of the wave splitting body 121 away from the input waveguide 11, that is, the rounded corner at the connection position between the inner side surface of the first branch 122 and the end surface of the wave splitting body 121 away from the input waveguide 11 can be regarded as a part of the arc surface 1211. Similarly, the arc surface 1211 can be smoothly connected to the rounded corner at the connection position between the inner side surface of the second branch 123 and the end surface of the wave splitting body 121 away from the input waveguide 11, that is, the rounded corner at the connection position between the inner side surface of the second branch 123 and the end surface of the wave splitting body 121 away from the input waveguide 11 can be regarded as a part of the arc surface 1211.

[0060] By providing an arc surface 1211 connected between the inner side surface of the first branch 122 and the inner side surface of the second branch 123 at the end surface of the wave splitting body 121 used for connecting the first branch 122 and the second branch 123, a gradient line impedance transformation can be performed, thereby further increasing the working bandwidth.

[0061] In some other embodiments, the inner surface of the first branch 122 and the inner side surface of the second branch 123 may also be a plane.

[0062] Please continue reading Figure 1 In some embodiments, the width of the input waveguide 11 is smaller than the width of the wave splitting body 121, and the connection positions between the two opposite side surfaces of the input waveguide 11 and the wave splitting body 121 are both set to be rounded corners.

[0063] It can be understood that the width of the input waveguide 11 is the dimension of the input waveguide 11 in its own width direction, the width of the wave splitting body 121 is the dimension of the wave splitting body 121 in its own width direction, and the width direction of the input waveguide 11 is roughly the same as the width direction of the wave splitting body 121.

[0064] In this embodiment, the width of the input waveguide 11 is smaller than the width of the wave splitting body 121, and the first output end of the input waveguide 11 is substantially connected to the center of the end face of the wave splitting waveguide 12 that is away from the first branch 122 and the second branch 123. The connection positions of the two opposite side faces of the input waveguide 11 in the width direction and the end face of the wave splitting body 121 that is away from the first branch 122 and the second branch 123 are both set as rounded corners, which can perform gradient line impedance transformation, thereby further increasing the working bandwidth.

[0065] In some other embodiments, the width of the input waveguide 11 may be equal to the width of the wave splitting body 121 .

[0066] Please continue reading Figure 1 In some embodiments, the connection positions of the two side surfaces of the wave splitting body 121 and the end surface of the wave splitting body 121 connected to the input waveguide 11 are both set to be rounded.

[0067] The width direction of the wave splitter body 121 is substantially the same as the width direction of the input waveguide 11 .

[0068] The two side surfaces of the wave splitter body 121 refer to the two side surfaces of the wave splitter body 121 in its own width direction. The connection positions of the two side surfaces of the wave splitter body 121 and the end surface of the wave splitter body 121 for connecting to the input waveguide 11 are both set as rounded corners, which can perform gradient line impedance transformation, thereby further increasing the working bandwidth.

[0069] In some other embodiments, the connection positions of the two side surfaces of the wave splitting body 121 and the end surface of the wave splitting body 121 connected to the input waveguide 11 are both set to be right angles.

[0070] Please continue reading Figure 1 In some embodiments, the connection position between the inner side surface of the first branch 122 and the first branch output waveguide 131 and the connection position between the inner side surface of the second branch 123 and the second branch output waveguide 132 are both set to be rounded.

[0071] The width direction of the first branch 122 and the width direction of the second branch 123 are approximately the same as the width direction of the input waveguide 11, and the length direction of the first branch output waveguide 131 and the length direction of the second branch output waveguide 132 are also approximately the same as the width direction of the input waveguide 11. In other words, the width direction of the first branch output waveguide 131 and the width direction of the second branch output waveguide 132 are approximately the same as the length direction of the input waveguide 11.

[0072] The inner side surface of the first branch 122 refers to the side surface facing the second branch 123 in the width direction of the first branch 122. The first branch output waveguide 131 has a first side surface and a second side surface opposite to each other in the width direction, the first side surface is closer to the input waveguide 11 than the second side surface, the inner side surface of the first branch 122 is connected to the second side surface, the outer side surface of the first branch 122 is connected to the first side surface, and the connection position of the inner side surface of the first branch 122 and the first branch output waveguide 131 is set as a rounded corner, which means that the connection position of the inner side surface of the first branch 122 and the second side surface is set as a rounded corner.

[0073] Similarly, the inner side surface of the second branch 123 refers to the side surface facing the first branch 122 in the width direction of the second branch 123. The second branch output waveguide 132 has a third side surface and a fourth side surface opposite to each other in the width direction, the third side surface is closer to the input waveguide 11 than the fourth side surface, the inner side surface of the second branch 123 is connected to the fourth side surface, the outer side surface of the second branch 123 is connected to the third side surface, and the connection position of the inner side surface of the second branch 123 and the second branch output waveguide 132 is set as a rounded corner, which means that the connection position of the inner side surface of the second branch 123 and the fourth side surface is set as a rounded corner.

[0074] The connection position between the inner side surface of the first branch 122 and the first branch output waveguide 131 and the connection position between the inner side surface of the second branch 123 and the second branch output waveguide 132 are both rounded, which can perform gradient line impedance transformation, thereby further increasing the working bandwidth.

[0075] In some other embodiments, the connection position between the inner side surface of the first branch 122 and the first branch output waveguide 131 and the connection position between the inner side surface of the second branch 123 and the second branch output waveguide 132 are both set to be at a right angle.

[0076] Please continue reading Figure 1 In some embodiments, the connection position between the outer side surface of the first branch 122 and the first branch output waveguide 131 and the connection position between the outer side surface of the second branch 123 and the second branch output waveguide 132 are both set to be rounded.

[0077] The width direction of the first branch 122 and the width direction of the second branch 123 are approximately the same as the width direction of the input waveguide 11, and the length direction of the first branch output waveguide 131 and the length direction of the second branch output waveguide 132 are also approximately the same as the width direction of the input waveguide 11. In other words, the width direction of the first branch output waveguide 131 and the width direction of the second branch output waveguide 132 are approximately the same as the length direction of the input waveguide 11.

[0078] The inner side surface of the first branch 122 refers to the side surface facing the second branch 123 in the width direction of the first branch 122. The first branch output waveguide 131 has a first side surface and a second side surface opposite to each other in the width direction, the first side surface is closer to the input waveguide 11 than the second side surface, the inner side surface of the first branch 122 is connected to the second side surface, the outer side surface of the first branch 122 is connected to the first side surface, and the connection position of the inner side surface of the first branch 122 and the first branch output waveguide 131 is set as a rounded corner, which means that the connection position of the inner side surface of the first branch 122 and the second side surface is set as a rounded corner.

[0079] Similarly, the inner side surface of the second branch 123 refers to the side surface facing the first branch 122 in the width direction of the second branch 123. The second branch output waveguide 132 has a third side surface and a fourth side surface opposite to each other in the width direction, the third side surface is closer to the input waveguide 11 than the fourth side surface, the inner side surface of the second branch 123 is connected to the fourth side surface, the outer side surface of the second branch 123 is connected to the third side surface, and the connection position of the inner side surface of the second branch 123 and the second branch output waveguide 132 is set as a rounded corner, which means that the connection position of the inner side surface of the second branch 123 and the fourth side surface is set as a rounded corner.

[0080] The connection position between the outer side surface of the first branch 122 and the first branch output waveguide 131 and the connection position between the outer side surface of the second branch 123 and the second branch output waveguide 132 are both rounded, which can perform gradient line impedance transformation, thereby further increasing the working bandwidth.

[0081] In some other embodiments, the connection position between the outer side surface of the first branch 122 and the first branch output waveguide 131 and the connection position between the outer side surface of the second branch 123 and the second branch output waveguide 132 are both set to be at a right angle.

[0082] See also Figure 2According to the simulation results, the T-type waveguide power divider 1 provided in the embodiment of the present application has an S11 better than -15dB in the range of 71-86GHz of the electromagnetic wave frequency. It should be noted that S11 is an important parameter in the scattering parameters. The smaller the S11 value, the lower the reflection loss.

[0083] When the S11 of the T-type waveguide power divider 1 is better than -15dB in the range of 71-86GHz of the electromagnetic wave frequency, it means that the reflection loss of the T-type waveguide power divider 1 provided in the embodiment of the present application is low, which helps to improve the overall efficiency of the system and reduce unnecessary energy waste. In addition, a lower S11 value helps to reduce the distortion and distortion of the signal during transmission, thereby improving the overall quality of the signal. In addition, a lower S11 value can reduce the interference between the reflected wave and the incident wave, resulting in the standing wave phenomenon and affecting the stability of the system.

[0084] Please also read Figure 3 and Figure 4 In a second aspect, an embodiment of the present invention further provides a communication device 2, comprising a housing 21, a radio frequency module 22, a control module 23 and a power module 24. The housing 21 is provided with a first cavity 211 and a second cavity 212 that are connected. The radio frequency module 22 is provided in the first cavity 211, and the radio frequency module 22 includes the T-type waveguide power divider 1 as described above. The control module 23 is provided in the second cavity 212 and is electrically connected to the radio frequency module 22. The power module 24 is provided in the second cavity 212 and is electrically connected to the control module 23.

[0085] It should be noted that the communication device 2 can be installed in rail transit or other means of transportation, which is not limited here.

[0086] The housing 21 includes a bottom plate 214, a surrounding plate 215 and a cover plate 216. The bottom plate 214 is a generally rectangular structure. One end of the surrounding plate 215 is arranged roughly around the edge of the bottom plate 214 to enclose a receiving cavity. The other end of the surrounding plate 215 is provided for the cover plate 216 to be assembled to close the receiving cavity. The housing 21 also includes a first partition plate and a second partition plate arranged in the receiving cavity. The first partition plate and the second partition plate are respectively connected to the surrounding plates 215 on both sides of the bottom plate 214 along the width direction of the bottom plate 214, and a gap is formed between the first partition plate and the second partition plate to divide the receiving cavity into a first cavity 211 and a second cavity 212 that are connected.

[0087] The radio frequency module 22 is disposed in the first cavity 211 and is mainly responsible for processing the sending and receiving of radio frequency signals. In this embodiment, the radio frequency module 22 includes the above-mentioned T-type waveguide power divider 1. It should be noted that, Figure 4 The appearance of the T-type waveguide power divider 1 disclosed in Figure 1 The exterior is not shown, but the interior is opened as Figure 1 Internal passage shown.

[0088] The control module 23 and the power module 24 are both disposed in the second cavity 212, and the control module 23 is electrically connected to the RF module 22 to control the operation of the RF module 22. The power module 24 is electrically connected to the control module 23 to supply power to the control module 23 and the RF module 22.

[0089] In this embodiment, by setting the RF module 22 in the first cavity 211 and the control module 23 and the power module 24 in the second cavity 212, the electromagnetic interference caused to the control module 23 and the power module 24 can be reduced, and the electromagnetic compatibility and electromagnetic shielding function of the communication device 2 can be improved. At the same time, the RF module 22 will generate a lot of heat when working. By setting the RF module 22 in the first cavity 211 and the control module 23 and the power module 24 in the second cavity 212, the heat dissipated by the RF module 22 can be prevented from causing overheating and other effects on the control module 23 and the power module 24, and the control module 23 and the power module 24 can be effectively protected. In addition, the first partition and the second partition are used to separate the accommodating cavity into the first cavity 211 and the second cavity 212 that are connected, so that the RF module 22 and the control module 23 can be wired between the first partition and the second partition, so that each line has enough space, which helps to reduce interference between the lines and improve the transmission quality of the signal.

[0090] Please continue reading Figure 3 and Figure 4 In some embodiments, the RF module 22 further includes a baseband board 221, a millimeter wave RF board 222, a curved waveguide 223, a first antenna 224, and a second antenna 225. The baseband board 221 is disposed at the bottom of the first cavity 211, and the baseband board 221 is electrically connected to the control module 23. The millimeter wave RF board 222 is spaced apart from the baseband board 221 and is electrically connected to the baseband board 221, and the T-type waveguide power divider 1 is disposed between the millimeter wave RF board 222 and the baseband board 221. The curved waveguide 223 is electrically connected to the millimeter wave RF board 222, and the curved waveguide 223 connects one end of the input waveguide 11 away from the split waveguide 12. The first antenna 224 connects one end of the first split output waveguide 131 away from the first branch 122. The second antenna 225 connects one end of the second split output waveguide 132 away from the second branch 123.

[0091] Among them, the baseband board 221 is responsible for the processing of baseband signals, including signal encoding, decoding, signal processing before modulation, and signal recovery after demodulation. The millimeter wave RF board 222 is responsible for RF processing functions such as modulation, transmission, reception, and demodulation of echo signals of millimeter wave signals. The baseband board 221 is arranged at the bottom of the first cavity 211, and the millimeter wave RF board 222 is arranged above the baseband board 221 and spaced from the baseband board 221, so that the millimeter wave RF board 222 and the baseband board 221 can perform efficient signal interaction, which is convenient for high-speed transmission and processing of signals.

[0092] In this embodiment, the T-type waveguide power divider 1 can be arranged between the millimeter wave RF board 222 and the baseband board 221. The curved waveguide 223 is connected between the millimeter wave RF board 222 and the baseband board 221 to change the transmission direction of the electromagnetic wave, so that the signal can be smoothly transmitted from the millimeter wave RF board 222 to the T-type waveguide power divider 1.

[0093] In addition, the length direction of the input waveguide 11 of the T-type waveguide power divider 1 can be roughly the same as the length direction of the bottom plate 214, and the length directions of the first branch output waveguide 131 and the second branch output waveguide 132 of the output waveguide 13 of the T-type waveguide power divider 1 can be roughly the same as the width direction of the floor, then the end of the first branch output waveguide 131 away from the first branch 122 is toward one side of the bottom plate 214, and the end of the second branch output waveguide 132 away from the second branch 123 is toward the other side of the bottom plate 214.

[0094] The first antenna 224 may be in the shape of a long strip, connected to one end of the first branch output waveguide 131 away from the first branch 122 , and extending approximately along the width direction of the bottom plate 214 , and the end of the first antenna 224 away from the first branch output waveguide 131 faces one side of the bottom plate 214 .

[0095] Similarly, the second antenna 225 can also be in the shape of a long strip, connected to one end of the second branch output waveguide 132 away from the second branch 123 and extending approximately along the width direction of the bottom plate 214 , and the end of the second antenna 225 away from the second branch output waveguide 132 is toward the other side of the bottom plate 214 .

[0096] It is understandable that the first antenna 224, the second antenna 225 and the T-type waveguide power divider 1 may be designed to be integrated to prevent the first antenna 224, the second antenna 225 and the T-type waveguide power divider 1 from being deformed after long-term vibration.

[0097] According to the simulation results, in the communication device 2 provided in this embodiment, the maximum gain of the first antenna 224 in the direction away from the end of the first branch output waveguide 131 and the second antenna 225 in the direction away from the end of the second branch output waveguide 132 is 22.48dBi, that is, the ability of the first antenna 224 to send or receive signals in the direction away from the end of the first branch output waveguide 131 and the second antenna 225 in the direction away from the end of the second branch output waveguide 132 is enhanced, which can improve the signal strength, thereby improving the quality of communication and expanding the communication coverage.

[0098] In some other embodiments, the T-type waveguide power divider 1 may be disposed on a side of the millimeter wave RF board 222 facing away from the baseband board 221 .

[0099] Please continue reading Figure 3 and Figure 4 In some embodiments, the end of the first antenna 224 away from the first branch output waveguide 131 and the end of the second antenna 225 away from the second branch output waveguide 132 are both configured to be rectangular.

[0100] The end of the first antenna 224 away from the first branch output waveguide 131 and the end of the second antenna 225 away from the second branch output waveguide 132 are both set to be rectangular, which helps to optimize the radiation pattern of the antenna so that the antenna can radiate and receive electromagnetic waves more efficiently, thereby improving the signal transmission efficiency of the communication device 2.

[0101] In addition, the first antenna 224 can be configured as a horn-shaped structure, that is, the cross-sectional area of ​​the first antenna 224 gradually increases from one end of the first antenna 224 connected to the first branch output waveguide 131 to the other end, thereby forming a horn-like structure.

[0102] Similarly, the second antenna 225 may also be configured as a trumpet-shaped structure, that is, the cross-sectional area of ​​the second antenna 225 gradually increases from one end of the second antenna 225 connected to the second branch output waveguide 132 to the other end, thereby forming a trumpet-like structure.

[0103] Setting the first antenna 224 and the second antenna 225 to a horn-shaped structure helps to improve the gain of the first antenna 224 and the second antenna 225, so that the communication device 2 can more effectively utilize the energy of electromagnetic waves when receiving and sending signals. In addition, the horn-shaped structure enables the first antenna 224 and the second antenna 225 to have a wider bandwidth and maintain good performance in a wider frequency range. In addition, the horn-shaped structure enables the first antenna 224 and the second antenna 225 to receive electromagnetic waves more effectively, which can improve the sensitivity of the communication device 2 to receive electromagnetic waves.

[0104] In some other embodiments, the end of the first antenna 224 away from the first branch output waveguide 131 and the end of the second antenna 225 away from the second branch output waveguide 132 are both configured to be circular or other shapes, which are not limited here.

[0105] Please continue reading Figure 3 and Figure 4 In some embodiments, two opposite side walls of the housing 21 are provided with antenna covers 213 , and the two antenna covers 213 are respectively opposite to the first antenna 224 and the second antenna 225 .

[0106] The enclosure 215 is provided with through holes penetrating the enclosure 215 on both sides of the bottom plate 214 in the width direction, and the antenna cover 213 is provided in the through holes.

[0107] One of the antenna covers 213 and the first antenna 224 is directly opposite to each other, which means that the antenna cover 213 and the first antenna 224 are spaced apart along the width direction of the base plate 214 away from the end of the first branch output waveguide 131. In other words, when projected in the width direction of the base plate 214, the projection of the end of the first branch output waveguide 131 falls completely within the projection of the antenna cover 213.

[0108] Similarly, another antenna facing the first antenna 224 means that the antenna cover 213 and the second antenna 225 are spaced apart along the width direction of the base plate 214 away from the end of the second branch output waveguide 132. In other words, when projected in the width direction of the base plate 214, the projection of the end of the second branch output waveguide 132 falls completely within the projection of the antenna cover 213.

[0109] The antenna cover 213 can close the through hole to protect the antenna and the components inside the first cavity 211.

[0110] In some other embodiments, the first antenna 224 and the second antenna 225 may be directly opposite to the enclosure 215 of the housing 21 .

[0111] In addition, the control module can be a vehicle-mounted control panel, and the communication device 2 also includes a server mainboard 25 and a mounting plate 26. The server mainboard 25 is arranged at the bottom of the second cavity 212, and the mounting plate 26 is installed on the side of the server mainboard 25 away from the bottom wall of the second cavity 212. The control module 23 and the power module 24 are both arranged on the mounting plate 26.

[0112] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A T-type waveguide power divider, characterized in that: include: Input waveguide; A wave splitting waveguide, the wave splitting waveguide comprising a wave splitting body, a first branch and a second branch, one end of the wave splitting body being connected to an end of the input waveguide, and the other end of the wave splitting body being connected to the first branch and the second branch which are spaced apart; as well as An output waveguide, the output waveguide comprising a first branch output waveguide and a second branch output waveguide extending in a width direction of the input waveguide, the first branch output waveguide connecting an end of the first branch away from the wave splitting body, and the second branch output waveguide connecting an end of the second branch away from the wave splitting body; Wherein, the connection position between the inner side surface of the first branch and the wave splitting body and the connection position between the inner side surface of the second branch and the wave splitting body are both set to be rounded.

2. The T-type waveguide power divider according to claim 1, characterized in that: An end surface of the wave splitting body used for connecting the first branch and the second branch is provided with an arc surface, and the arc surface is connected between the inner side surface of the first branch and the inner side surface of the second branch.

3. The T-type waveguide power divider according to claim 1, characterized in that: The width of the input waveguide is smaller than the width of the wave splitting body, and the connection positions between the two opposite side surfaces of the input waveguide and the wave splitting body are both configured as rounded corners.

4. The T-type waveguide power divider according to claim 3, characterized in that: The connection positions of the two side surfaces of the wave splitting body and the end surface of the wave splitting body connected to the input waveguide are both set as rounded corners.

5. The T-type waveguide power divider according to claim 1, characterized in that: A connection position between the inner side surface of the first branch and the first branch output waveguide and a connection position between the inner side surface of the second branch and the second branch output waveguide are both configured as rounded corners.

6. The T-type waveguide power divider according to claim 1, characterized in that: A connection position between the outer side surface of the first branch and the first branch output waveguide and a connection position between the outer side surface of the second branch and the second branch output waveguide are both configured as rounded corners.

7. A communication device, characterized in that: include: A housing, wherein the housing is provided with a first cavity and a second cavity that are connected; A radio frequency module, the radio frequency module being arranged in the first cavity, the radio frequency module comprising the T-type waveguide power divider according to any one of claims 1 to 6; a control module, which is disposed in the second cavity and electrically connected to the radio frequency module; as well as A power module is disposed in the second cavity and is electrically connected to the control module.

8. The communication device according to claim 7, characterized in that: The radio frequency module also includes: A baseband board, which is disposed at the bottom of the first cavity and is electrically connected to the control module; a millimeter wave radio frequency board, which is spaced apart from the baseband board and electrically connected to the baseband board, and the T-type waveguide power divider is arranged between the millimeter wave radio frequency board and the baseband board; A curved waveguide, which is electrically connected to the millimeter wave radio frequency board, and the curved waveguide is connected to an end of the input waveguide away from the branch waveguide; a first antenna connected to an end of the first branch output waveguide away from the first branch; and The second antenna is connected to an end of the second branch output waveguide away from the second branch.

9. The communication device according to claim 8, characterized in that The end of the first antenna away from the first branch output waveguide and the end of the second antenna away from the second branch output waveguide are both configured to be rectangular.

10. The communication device according to claim 8, characterized in that Antenna covers are disposed on two opposite side walls of the shell, and the two antenna covers are respectively opposite to the first antenna and the second antenna.

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