Combining phase shifter and antenna

Abstract

The application discloses a combined phase shifter and an antenna. The combined phase shifter comprises a dielectric substrate, a first phase shifter and a second phase shifter arranged on one side of the dielectric substrate, the first phase shifter and the second phase shifter being coplanar, and a combiner unit arranged on the other side of the dielectric substrate and electrically connected with the first phase shifter and the second phase shifter through through holes penetrating the dielectric substrate. The application can reduce the weight and cost of the antenna.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of wireless communication, and in particular to a combining phase shifter and an antenna. BACKGROUND

[0002] With the continuous evolution of 2G, 3G, 4G, 5G antennas, due to the reasons of equipment, technology and demand, sometimes it is necessary to combine two frequency bands of signals for input and output, which requires a dual-frequency combiner to achieve. In order to realize the light weight of dual-frequency electrically adjustable antenna, the antenna technology of dividing the ultra-wideband radiation unit into two independent working frequency bands through the dual-frequency combiner becomes an important method to solve the repeated construction of base station antennas.

[0003] The combiner and phase shifter used by the commonly used dual-frequency independent electrically adjustable antenna on the existing base station antenna are independently designed, which has a large weight and volume, making the weight and cost of the antenna higher. SUMMARY

[0004] The present application provides a combining phase shifter and an antenna to reduce the weight and cost of the antenna.

[0005] In a first aspect, embodiments of the present application provide a combining phase shifter, comprising:

[0006] a dielectric substrate;

[0007] a first phase shifter and a second phase shifter arranged on one side of the dielectric substrate, the first phase shifter and the second phase shifter being coplanar;

[0008] a combiner unit arranged on the other side of the dielectric substrate and electrically connected to the first phase shifter and the second phase shifter through a through hole penetrating the dielectric substrate.

[0009] Optionally, the first phase shifter and the second phase shifter are arranged in central symmetry on the dielectric substrate.

[0010] Optionally, the first phase shifter comprises a first transmission line, a second transmission line, a third transmission line and a first coupling gap; the second phase shifter comprises a fourth transmission line which is centrally symmetric to the first transmission line, a fifth transmission line which is centrally symmetric to the second transmission line, a sixth transmission line which is centrally symmetric to the third transmission line, and a second coupling gap which is centrally symmetric to the first coupling gap.

[0011] Optionally, the first transmission line, the second transmission line, the third transmission line, the sixth transmission line, the fifth transmission line and the fourth transmission line all extend along a first direction and are arranged in sequence along a second direction; wherein the first direction is perpendicular to the second direction.

[0012] Optionally, the combiner unit comprises a first combiner, a second combiner, a third combiner, a fourth combiner and a fifth combiner.

[0013] Each of the combiners comprises a high-pass filtered transmission line and a low-pass filtered transmission line.

[0014] The first end of the first transmission line is electrically connected to the high-pass filtered transmission line of the first combiner through a first via hole; the second end of the first transmission line is electrically connected to the high-pass filtered transmission line of the fifth combiner through a second via hole; the first end of the second transmission line is electrically connected to the high-pass filtered transmission line of the second combiner through a third via hole; the second end of the second transmission line is electrically connected to the high-pass filtered transmission line of the fourth combiner through a fourth via hole; the first end of the third transmission line is electrically connected to the high-pass filtered transmission line of the third combiner through a fifth via hole.

[0015] The first end of the fourth transmission line is electrically connected to the low-pass filtered transmission line of the first combiner through a sixth via hole; the second end of the fourth transmission line is electrically connected to the low-pass filtered transmission line of the fifth combiner through a seventh via hole; the first end of the fifth transmission line is electrically connected to the low-pass filtered transmission line of the second combiner through an eighth via hole; the second end of the fifth transmission line is electrically connected to the low-pass filtered transmission line of the fourth combiner through a ninth via hole; the first end of the sixth transmission line is electrically connected to the low-pass filtered transmission line of the third combiner through a tenth via hole.

[0016] Optionally, the first combiner, the second combiner, the third combiner, the fourth combiner and the fifth combiner are arranged along the first direction.

[0017] Optionally, the first combiner, the second combiner, the fourth combiner and the fifth combiner all extend along the second direction.

[0018] The high-pass filtered transmission line and the low-pass filtered transmission line of the third combiner extend along the first direction and are arranged along the second direction.

[0019] Optionally, the high-pass filtered transmission line of each of the combiners adopts a serpentine trace, a meander trace or a spiral trace.

[0020] And / or, the low-pass filtered transmission line of each of the combiners adopts a serpentine trace, a meander trace or a spiral trace.

[0021] Optionally, the high-pass filtered transmission line of each of the combiners further comprises a first high-pass open stub and a second high-pass open stub; the low-pass filtered transmission line of each of the combiners further comprises a first low-pass open stub and a second low-pass open stub.

[0022] In a second aspect, the embodiment of the present application further provides an antenna, which comprises the combining phase shifter in the first aspect and a radiating unit, and the radiating unit is electrically connected with the combining phase shifter.

[0023] The technical scheme of the embodiment of the present application adopts the combining phase shifter, which comprises: a dielectric substrate; a first phase shifter and a second phase shifter arranged on one side of the dielectric substrate, the first phase shifter and the second phase shifter being coplanar; and a combiner unit arranged on the other side of the dielectric substrate and electrically connected with the first phase shifter and the second phase shifter through a through hole penetrating the dielectric substrate. The first phase shifter and the second phase shifter are arranged on one side of the dielectric substrate, and the combiner unit is arranged on the other side of the dielectric substrate, and the phase shifter and the combiner unit are electrically connected through the metallized through hole penetrating the dielectric substrate. On the one hand, the space of the dielectric substrate can be fully utilized, and the combiner unit and the phase shifter are distributed on different circuit layers, so that the integration degree is higher and the processing is more convenient. On the other hand, the combiner unit and the phase shifter are designed integrally through the metallized through hole, so that the combining phase shifter has a compact structure, which is beneficial to assembly and mass production, and is also beneficial to reducing the weight and cost of the antenna using the combining phase shifter. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A structural schematic diagram of a combining phase shifter provided by the embodiment of the present application is shown in FIG. 1.

[0025] Figure 2 A structural schematic diagram of a first phase shifter and a second phase shifter provided by the embodiment of the present application is shown in FIG. 2.

[0026] Figure 3 A structural schematic diagram of a combiner unit provided by the embodiment of the present application is shown in FIG. 3. DETAILED DESCRIPTION

[0027] The present application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, but not all the structures.

[0028] Figure 1 A structural schematic diagram of a combining phase shifter provided by the embodiment of the present application is shown in FIG. 1. Figure 1 The combining phase shifter 1000 comprises: a dielectric substrate 1; a first phase shifter 3 and a second phase shifter 4 arranged on one side of the dielectric substrate, the first phase shifter 3 and the second phase shifter 4 being coplanar; and a combiner unit 2 arranged on the other side of the dielectric substrate 1 and electrically connected with the first phase shifter 3 and the second phase shifter 4 through a through hole penetrating the dielectric substrate 1.

[0029] Specifically, the medium substrate 1 is used to provide support for the phase shifter and the combiner, and the medium substrate 1 can be a PCB (Printed Circuit Board). The medium substrate 1 includes two opposite sides, for example, a first side and a second side, respectively. The combiner unit 2 is arranged on the first side, and the combiner unit 2 includes a plurality of combiners. The combiner unit 2 is used to be connected with the radiation unit of the antenna, so that the signals received on the radiation unit are transmitted to the first phase shifter 3 and the second phase shifter 4 through the combiner unit, respectively. The first phase shifter 3 and the second phase shifter 4 are arranged on the second side of the medium substrate 1, and the first phase shifter 3 and the second phase shifter 4 are electrically connected with the combiner unit 2 through the through holes, so as to output the signals received from the combiner unit after phase shifting, respectively. The first phase shifter 3 and the second phase shifter 4 output signals of different frequency bands, respectively. In the embodiment, the first phase shifter 3 and the second phase shifter 4 are arranged on one side of the medium substrate 1, and the combiner unit 2 is arranged on the other side of the medium substrate 1. The phase shifter and the combiner unit 2 are electrically connected through the metalized through holes penetrating the medium substrate 1. On the one hand, the space of the medium substrate 1 can be fully utilized, and the combiner unit and the phase shifter are distributed on different circuit layers, so that the integration degree is higher, and the processing is more convenient. On the other hand, the combiner unit and the phase shifter are designed integrally through the metalized through holes, so that the structure of the combiner phase shifter is compact, which is beneficial to assembly and mass production, and is also beneficial to reducing the weight and cost of the antenna using the combiner phase shifter.

[0030] The technical scheme of the embodiment includes: a medium substrate; a first phase shifter and a second phase shifter arranged on one side of the medium substrate, the first phase shifter and the second phase shifter being coplanar; and a combiner unit arranged on the other side of the medium substrate and electrically connected with the first phase shifter and the second phase shifter through through holes penetrating the medium substrate. The first phase shifter and the second phase shifter are arranged on one side of the medium substrate, and the combiner unit is arranged on the other side of the medium substrate. The phase shifter and the combiner unit are electrically connected through the metalized through holes penetrating the medium substrate. On the one hand, the space of the medium substrate can be fully utilized, and the combiner unit and the phase shifter are distributed on different circuit layers, so that the integration degree is higher, and the processing is more convenient. On the other hand, the combiner unit and the phase shifter are designed integrally through the metalized through holes, so that the structure of the combiner phase shifter is compact, which is beneficial to assembly and mass production, and is also beneficial to reducing the weight and cost of the antenna using the combiner phase shifter.

[0031] Optionally, Figure 2 A structural schematic diagram of a first phase shifter and a second phase shifter provided in the embodiment of the application is provided, which is combined with Figure 1 and Figure 2, the first phase shifter 3 and the second phase shifter 4 are arranged in a center symmetry on the dielectric substrate 1; the first phase shifter 3 comprises a first transmission line 31, a second transmission line 32, a third transmission line 33 and a first coupling slot 34; the second phase shifter 4 comprises a fourth transmission line 41 which is in a center symmetry with the first transmission line 31, a fifth transmission line 42 which is in a center symmetry with the second transmission line 32, a sixth transmission line 43 which is in a center symmetry with the third transmission line 33, and a second coupling slot 44 which is in a center symmetry with the first coupling slot 34.

[0032] Specifically, in the embodiment, the first phase shifter 3 and the second phase shifter 4 are arranged in a center symmetry, so that the transmission lines of the two frequency bands are coplanar, which is more convenient for design and wiring; for example, in the embodiment, the first phase shifter 3 and the second phase shifter 4 each comprise three transmission lines and one coupling slot, of course, in other embodiments, the phase shifter can also comprise other numbers of transmission lines, and the materials and functions of the transmission lines and the coupling slot are well known to those skilled in the art, which will not be described here.

[0033] Preferably, as shown in Figure 2 , the first transmission line 31, the second transmission line 32, the third transmission line 33, the sixth transmission line 43, the fifth transmission line 42 and the fourth transmission line 41 each extend along a first direction X and are arranged in sequence along a second direction Y; wherein the first direction X is perpendicular to the second direction Y.

[0034] Specifically, in the embodiment, the transmission lines extend along the first direction X, which does not mean that they extend along a straight line, but that the two ends of the transmission lines are located at different positions along the first direction X; as shown in Figure 2 , in order to make full use of the space on the dielectric substrate 1, the first transmission line 31, the second transmission line 32, the fourth transmission line 41 and the fifth transmission line 42 each adopt an arc-shaped wiring, so that the space utilization rate on the dielectric substrate 1 is higher, and the arrangement of the transmission lines in the phase shifter is more compact, thereby further improving the integration of the combining phase shifter and reducing the size and cost of the antenna using the combining phase shifter.

[0035] Optionally, continuing to refer to Figure 2 , at least one of the first transmission line 31, the second transmission line 32 and the third transmission line 33 adopts a serpentine wiring.

[0036] Specifically, the serpentine trace can arrange longer trace in smaller space, thereby improving the performance of the phase shifter, and therefore, the first transmission line 31, the second transmission line 32 and the third transmission line 33 can preferably adopt the serpentine trace. It should be noted that the fourth transmission line 41 and the first transmission line 31 are center-symmetric, and therefore, the trace mode of the fourth transmission line 41 and the first transmission line 31 is the same; the fifth transmission line 42 and the second transmission line 32 are center-symmetric, and therefore, the trace mode of the fifth transmission line 42 and the second transmission line 32 is the same; the sixth transmission line 43 and the third transmission line 33 are center-symmetric, and therefore, the trace mode of the sixth transmission line 43 and the third transmission line 33 is the same.

[0037] Exemplarily, Figure 3 A structure schematic diagram of a combiner unit provided by an embodiment of the present application is shown in FIG. 2, which shows the structure of the combiner unit 2 in combination with Figure 2 and Figure 3 The combiner unit 2 includes a first combiner 21, a second combiner 22, a third combiner 23, a fourth combiner 24 and a fifth combiner 25; each combiner includes a high-pass filter transmission line and a low-pass filter transmission line; the first end of the first transmission line 31 is electrically connected to the high-pass filter transmission line of the first combiner 21 through a first via hole 311; the second end of the first transmission line 31 is electrically connected to the high-pass filter transmission line of the fifth combiner 25 through a second via hole 312; the first end of the second transmission line 32 is electrically connected to the high-pass filter transmission line of the second combiner 22 through a third via hole 321; the second end of the second transmission line 32 is electrically connected to the high-pass filter transmission line of the fourth combiner 24 through a fourth via hole 322; the first end of the third transmission line 331 is electrically connected to the high-pass filter transmission line of the third combiner 23 through a fifth via hole 331;

[0038] The first end of the fourth transmission line 41 is electrically connected to the low-pass filter transmission line of the first combiner 21 through a sixth via hole 411; the second end of the fourth transmission line 41 is electrically connected to the low-pass filter transmission line of the fifth combiner 25 through a seventh via hole 412; the first end of the fifth transmission line 42 is electrically connected to the low-pass filter transmission line of the second combiner 22 through an eighth via hole 421; the second end of the fifth transmission line 42 is electrically connected to the low-pass filter transmission line of the fourth combiner 24 through a ninth via hole 422; the first end of the sixth transmission line 431 is electrically connected to the low-pass filter transmission line of the third combiner 23 through a tenth via hole 431.

[0039] Specifically, in the present embodiment, the first via hole to the tenth via hole are all metallized via holes penetrating the dielectric substrate 1; Figure 3The high-pass filtered transmission line 251 and the low-pass filtered transmission line 252 of the fifth combiner 25 are only exemplarily marked; one end of the high-pass filtered transmission line of each combiner is electrically connected with the corresponding via hole, and the other end is electrically connected with the combining point of the combiner; and one end of the low-pass filtered transmission line of each combiner is electrically connected with the corresponding via hole, and the other end is electrically connected with the combining point of the combiner; the signals transmitted by the combiner through the two filtered transmission lines are combined at the combining point, which is used to connect the radiating elements of the antenna. The number of combiners matches the number of transmission lines in the phase shifter. In the embodiment, as shown in Figure 2 The second end 330 of the third transmission line 33 and the second end 430 of the sixth transmission line 43 are used to transmit the signals phase-shifted by the phase shifter to the subsequent circuit.

[0040] Preferably, as shown in Figure 3 The first combiner 21, the second combiner 22, the third combiner 23, the fourth combiner 24 and the fifth combiner 25 are arranged along the first direction X.

[0041] Specifically, in the embodiment, the first end of the first transmission line 31 and the first end of the fourth transmission line 41 both need to be connected with the first combiner; the first end of the second transmission line 32 and the first end of the fifth transmission line 42 both need to be connected with the second combiner; the first end of the third transmission line 33 and the first end of the sixth transmission line 43 both need to be connected with the third combiner; the second end of the second transmission line 32 and the second end of the fifth transmission line 42 both need to be connected with the fourth combiner; the first end of the first transmission line 31 and the second end of the fourth transmission line 41 both need to be connected with the fifth combiner; and the first transmission line to the sixth transmission line are arranged along the second direction, so that the first combiner to the fifth combiner can be arranged along the first direction, thereby further improving the compactness of each transmission line in the combiner phase shifter, and further reducing the weight and cost of the antenna using the combiner phase shifter.

[0042] Optionally, as shown in Figure 3 The first combiner 21, the second combiner 22, the fourth combiner 24 and the fifth combiner 25 all extend along the second direction Y; the high-pass filtered transmission line and the low-pass filtered transmission line of the third combiner 23 extend along the first direction X and are arranged along the second direction Y.

[0043] Specifically, the distance between the first end of the first transmission line 31 and the first end of the fourth transmission line 41 is relatively long, and the first combiner 21 is arranged to extend along the second direction Y, so that the length of the transmission line in the first combiner 21 meets the performance requirement of the combiner, and thus the first combiner 21 can be arranged to extend along the second direction Y; similarly, the distance between the first end of the second transmission line 32 and the first end of the fifth transmission line 42 is relatively long, and the second combiner 22 is arranged to extend along the second direction Y, so that the length of the transmission line in the second combiner 22 meets the performance requirement of the combiner, and thus the second combiner 22 can be arranged to extend along the second direction Y; the distance between the second end of the first transmission line 31 and the second end of the fourth transmission line 41 is relatively long, and the fifth combiner 25 is arranged to extend along the second direction Y, so that the length of the transmission line in the fifth combiner 25 meets the performance requirement of the combiner, and thus the fifth combiner 25 can be arranged to extend along the second direction Y; the distance between the second end of the second transmission line 32 and the second end of the fifth transmission line 42 is relatively long, and the fourth combiner 24 is arranged to extend along the second direction Y, so that the length of the transmission line in the fourth combiner 24 meets the performance requirement of the combiner, and thus the fourth combiner 24 can be arranged to extend along the second direction Y; since the distance between the first end of the third transmission line 33 and the first end of the sixth transmission line 43 is relatively short, the low-pass filter transmission line and the high-pass filter transmission line in the third combiner 23 can be arranged to extend along the first direction X and arranged along the second direction Y, so that the length of the third combiner 23 meets the performance requirement of the combiner, and the third combiner 23 does not need to occupy more space on the dielectric substrate.

[0044] Optionally, the high-pass filter of each combiner adopts a serpentine trace, a meander trace or a spiral trace; and / or, the low-pass filter transmission line of each combiner adopts a serpentine trace, a meander trace or a spiral trace.

[0045] Specifically, the serpentine trace, the meander trace and the spiral trace can arrange longer traces in smaller space, so that the performance of the combiner can be improved, and thus the high-pass filter transmission line and the low-pass filter transmission line in each combiner can preferably adopt a serpentine trace, a meander trace or a spiral trace.

[0046] Optionally, continuing to refer to Figure 3 the high-pass filter transmission line of each combiner further comprises a first high-pass open stub and a second high-pass open stub, and the low-pass filter transmission line of each combiner further comprises a first low-pass open stub and a second low-pass open stub.

[0047] Specifically, as shown in Figure 3 , the first high-pass open stub and the second high-pass open stub of the high-pass filter transmission line of each combiner are arranged to extend along the first direction X, and the first low-pass open stub and the second low-pass open stub of the low-pass filter transmission line of each combiner are arranged to extend along the second direction Y. Figure 3The first high-pass open-circuit branch 2511, the second high-pass open-circuit branch 2512, the first low-pass open-circuit branch 2521 and the second low-pass open-circuit branch 2522 of the fifth combiner 25 are identified; the open-circuit branches function as filters, thereby improving the out-of-band rejection capability of the combiner and reducing the loss of the combiner; the positions and lengths of the open-circuit branches are not specifically limited in the embodiment.

[0048] The embodiment of the present application also provides an antenna, which comprises the combiner phase shifter provided by any of the embodiments of the present application and a radiating unit, and the radiating unit is electrically connected with the combiner phase shifter.

[0049] Specifically, the radiating unit is electrically connected with the combining point of the combiner in the combiner phase shifter, and the antenna can be an antenna for dividing an ultra-wideband radiating unit into two independent working frequency bands through a double-frequency combiner; since the antenna provided by the embodiment of the present application comprises the combiner phase shifter provided by any of the embodiments of the present application, the antenna also has the same beneficial effects, which will not be described here.

[0050] Note that the above are only the preferred embodiments of the present application and the applied technical principles. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, readjustments and substitutions without departing from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A combiner phase shifter characterized by, The combining phase shifter comprises: a dielectric substrate; a first phase shifter and a second phase shifter arranged on one side of the dielectric substrate, the first phase shifter and the second phase shifter being coplanar; a combiner unit arranged on the other side of the dielectric substrate and electrically connected to the first phase shifter and the second phase shifter through through-holes penetrating the dielectric substrate; the first phase shifter comprises a first transmission line, a second transmission line, a third transmission line and a first coupling slit; the second phase shifter comprises a fourth transmission line which is centrally symmetric to the first transmission line, a fifth transmission line which is centrally symmetric to the second transmission line, a sixth transmission line which is centrally symmetric to the third transmission line, and a second coupling slit which is centrally symmetric to the first coupling slit; the first transmission line, the second transmission line, the third transmission line, the sixth transmission line, the fifth transmission line and the fourth transmission line all extend along a first direction and are arranged in sequence along a second direction; wherein the first direction is perpendicular to the second direction; the combiner unit comprises a first combiner, a second combiner, a third combiner, a fourth combiner and a fifth combiner; the first combiner, the second combiner, the third combiner, the fourth combiner and the fifth combiner are arranged along the first direction; each combiner comprises a high-pass filter transmission line and a low-pass filter transmission line; the first combiner, the second combiner, the fourth combiner and the fifth combiner extend along the second direction; the high-pass filter transmission line and the low-pass filter transmission line of the third combiner extend along the first direction and are arranged along the second direction; a first end of the first transmission line is electrically connected to the high-pass filter transmission line of the first combiner through a first through-hole; a second end of the first transmission line is electrically connected to the high-pass filter transmission line of the fifth combiner through a second through-hole; a first end of the second transmission line is electrically connected to the high-pass filter transmission line of the second combiner through a third through-hole; a second end of the second transmission line is electrically connected to the high-pass filter transmission line of the fourth combiner through a fourth through-hole; a first end of the third transmission line is electrically connected to the high-pass filter transmission line of the third combiner through a fifth through-hole; a first end of the fourth transmission line is electrically connected to the low-pass filter transmission line of the first combiner through a sixth through-hole; a second end of the fourth transmission line is electrically connected to the low-pass filter transmission line of the fifth combiner through a seventh through-hole; a first end of the fifth transmission line is electrically connected to the low-pass filter transmission line of the second combiner through an eighth through-hole; a second end of the fifth transmission line is electrically connected to the low-pass filter transmission line of the fourth combiner through a ninth through-hole; a first end of the sixth transmission line is electrically connected to the low-pass filter transmission line of the third combiner through a tenth through-hole; one end of the high-pass filter transmission line of each combiner is electrically connected to the corresponding through-hole, and the other end is electrically connected to the combining point of the combiner; and one end of the low-pass filter transmission line of each combiner is electrically connected to the corresponding through-hole, and the other end is electrically connected to the combining point of the combiner; In the second direction, the third via is located on one side of the first via close to the combining point of the first combiner; the eighth via is located on one side of the sixth via close to the combining point of the first combiner; the fifth via is located on one side of the third via close to the combining point of the second combiner; the tenth via is located on one side of the eighth via close to the combining point of the second combiner; The fourth via is located on one side of the second via close to the combining point of the fifth combiner; the ninth via is located on one side of the seventh via close to the combining point of the fifth combiner.

2. The combiner phase shifter of claim 1, wherein, The high-pass filter transmission line of each combiner adopts a serpentine trace, a meander trace or a spiral trace; And / or, the low-pass filter transmission line of each combiner adopts a serpentine trace, a meander trace or a spiral trace.

3. The combiner phase shifter of claim 1, wherein, The high-pass filter transmission line of each combiner further comprises a first high-pass open stub and a second high-pass open stub; the low-pass filter transmission line of each combiner further comprises a first low-pass open stub and a second low-pass open stub.

4. An antenna, comprising the combiner phase shifter of any one of claims 1-3 and a radiating element, the radiating element being electrically connected with the combiner phase shifter.

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