Linear power attenuator device and vertical beam adjustable antenna

Abstract

The utility model relates to the technical field of antennas, in particular to a linear power attenuator device and a vertical wave beam adjustable antenna, the linear power attenuator device comprises a sliding adjusting sheet and a PCB circuit board, the PCB circuit board is coupled with the sliding adjusting sheet to form a power attenuation part, and the power attenuation part is connected with the sliding adjusting sheet. The sliding displacement change of the sliding adjusting sheet is used for adjusting the phase amplitude of the first signal output end, specifically, when the sliding adjusting sheet linearly moves towards the signal input port, the length of a delay line of the first signal output end is lengthened, and when the sliding adjusting sheet reversely and linearly moves towards the signal input port, the length of a phase delay line is shortened, and the phase amplitude of the first signal output end is adjusted. The first signal output end, the second signal output end and the third signal output end have linearly adjustable phase and amplitude differences, so that each radiation unit radiates signals with different phase amplitudes, and the problem that the antenna outputs different beam widths in different application scenes is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, in particular to a linear power attenuator device and a vertical beam adjustable antenna. Background Art

[0002] With the development of social economy, the trend of national urbanization is becoming more and more obvious. Therefore, more and more buildings of different sizes are being built, which brings more base station signal blind spots. In order to solve this problem, domestic operators adopt the solution of radiating signals from the outside to the inside of the building, such as setting up exhaust pipe beautification antennas on the top of the opposite building to radiate electromagnetic field signals to residential areas. However, the scale of buildings in each residential area is different, and there are various differences in the size and width of the buildings. The antenna needs to output different beam widths. In view of these differences, antennas with different beam widths need to be customized, which brings higher R&D costs and cannot meet the actual application needs. Utility Model Content

[0003] In view of the above-mentioned defects, the purpose of the present utility model is to propose a linear power attenuator, which solves the problem that the antenna outputs different beam widths in different application scenarios.

[0004] Another object of the utility model is to propose a vertical beam adjustable antenna using the above-mentioned linear power attenuator to solve the problem that due to the different building sizes and widths in residential areas, antennas with different beam widths need to be customized, which brings higher R&D costs and cannot meet the actual application needs.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A linear power attenuator comprises: a sliding adjustment sheet and a PCB circuit board;

[0007] The PCB circuit board is printed with a power division network, and the PCB circuit board includes a first signal output end, a second signal output end, a third signal output end and a signal input port for connecting different radiation units;

[0008] The sliding adjustment piece can be slidably arranged on the PCB circuit board, and the microstrip line of the sliding adjustment piece is coupled with the microstrip line on the PCB circuit board. The displacement of the sliding adjustment piece can control the length of the microstrip line coupled between the sliding adjustment piece and the microstrip line of the first output port, so as to control the phase and amplitude of the first signal output end.

[0009] Furthermore, the power division network includes a first power division channel and a second power division channel, the first power division channel introduces the input signal into the meander delay line and transmits it to the second signal output end and the third signal output end, so that the second signal output end and the third signal output end output fixed amplitude and phase;

[0010] The microstrip line of the second power division channel is coupled with the microstrip line of the sliding adjustment sheet.

[0011] Further, it also includes an upper adjustment arm and a lower adjustment arm;

[0012] A first through hole with a buckle seat is provided at the rear end of the back side of the lower adjustment arm;

[0013] A second through hole is provided at the rear end of the sliding adjustment sheet;

[0014] A movable transmission rod is provided at the front end of the front side of the upper adjustment arm, and a positioning column with a buckle head is provided at the rear end of the back side of the upper adjustment arm;

[0015] The PCB circuit board is provided with an avoidance groove;

[0016] The positioning column passes through the second through hole and the avoidance groove and is engaged with the first through hole, the back side of the upper adjustment arm contacts the back side of the sliding adjustment sheet, the microstrip line of the sliding adjustment sheet contacts the microstrip line of the first signal output end of the PCB circuit board, and the back side of the PCB circuit board contacts the front side of the lower adjustment arm.

[0017] Furthermore, it also includes an annular fastener, which is arranged on the outer periphery of the positioning column and is used to tightly fit the sliding adjustment plate and the PCB circuit board.

[0018] Furthermore, the annular fastener is an O-shaped rubber ring.

[0019] Furthermore, a vertical beam adjustable antenna using the above linear power attenuator includes a plurality of coaxial cables and two columns of radiation element groups;

[0020] The first signal output end, the second signal output end and the third signal output end each have two interfaces, one end of the plurality of coaxial cables are respectively connected to the two interfaces of the first signal output end, the second signal output end and the third signal output end, and the other end of the plurality of coaxial cables is connected to a single polarization of the radiation unit group.

[0021] Furthermore, the radiation unit group includes a first radiation unit, a second radiation unit and a third radiation unit, which are distributed according to a preset interval, and the first radiation unit is arranged between the second radiation unit and the third radiation unit.

[0022] Furthermore, a reflecting plate is included, the linear power attenuator is arranged on the back side of the reflecting plate, and the first radiation unit, the second radiation unit and the third radiation unit are all arranged on the front side of the reflecting plate.

[0023] Furthermore, it also includes a reflection strip, and the reflection strip is arranged between each of the first radiation unit, the second radiation unit and the third radiation unit.

[0024] Furthermore, it also includes an antenna cover, and the reflector is arranged in the antenna cover.

[0025] Beneficial effects of the utility model:

[0026] The PCB circuit board is coupled to the sliding adjustment plate to form a power attenuation part. When the sliding adjustment plate moves linearly toward the signal input port, the delay line length of the first signal output end is lengthened. On the contrary, when it moves in the opposite linear direction, the delay line length is shortened, so that there is a linearly adjustable phase amplitude difference between the first signal output end and the second signal output end and the third signal output end, so that each radiation unit transmits a signal with different phase and amplitude. The radiation unit group can linearly adjust the beam width of the antenna, which solves the problem that due to the different building sizes in residential areas and the various differences in the size and width of buildings, antennas with different beam widths need to be customized, which brings higher R&D costs and cannot meet the needs of actual applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a linear power attenuator in the utility model;

[0028] Figure 2 This is a schematic diagram of a power division network in an embodiment of the utility model;

[0029] Figure 3 It is a structural schematic diagram of a vertical beam adjustable antenna in the utility model;

[0030] Figure 4 It is a connection diagram of a vertical beam adjustable antenna in the utility model;

[0031] Figure 5 It is a schematic diagram of a reflector of a vertical beam adjustable antenna in the utility model;

[0032] Figure 6 It is a schematic structural diagram of an upper adjustment arm, a movable slide and a lower adjustment arm in one embodiment of the utility model;

[0033] Figure 7 It is an exploded schematic diagram of an upper adjustment arm, a movable slide and a lower adjustment arm in one embodiment of the utility model;

[0034] Wherein: linear power attenuator 1, sliding adjustment plate 2, upper adjustment arm 21, movable transmission rod 211, positioning column 212, lower adjustment arm 22, first through hole 221, second through hole 23, annular fastener 24, PCB circuit board 3, power division network 30, adjustable phase amplitude output branch 302, preset phase amplitude output branch 303, first signal output end 31, second signal output end 32, third signal output end 33, first power division channel 34, second power division channel 35, bent delay line 36, delay line 37, signal input port 38, avoidance groove 39, coaxial cable 4, radiation unit group 5, first radiation unit 51, second radiation unit 52, third radiation unit 53, reflection plate 6, reflection strip 7 and antenna cover 8. DETAILED DESCRIPTION

[0035] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0036] A preferred embodiment of the present application is as follows Figure 1 As shown, a linear power attenuator 1 comprises: a sliding adjustment sheet 2 and a PCB circuit board 3;

[0037] The PCB circuit board 3 is printed with a power division network 30, and the PCB circuit board 3 includes a first signal output terminal 31, a second signal output terminal 32, a third signal output terminal 33 and a signal input port 38, which are used to connect different radiation units;

[0038] The sliding adjustment piece 2 can be slidably arranged on the PCB circuit board and coupled with the microstrip line on the PCB circuit board 3. The displacement of the sliding adjustment piece 2 can control the length of the microstrip line that couples the sliding adjustment piece with the microstrip line of the first output end 31, so as to control the phase and amplitude of the first signal output end 31.

[0039] Specifically, the PCB circuit board 3 is coupled with the sliding adjustment plate 2 to form a power attenuation part, and the sliding displacement change of the sliding adjustment plate 2 is used to adjust the phase amplitude of the first signal output terminal 31. Specifically, when the sliding adjustment plate 2 moves linearly toward the signal input port 38, the length of the delay line 37 of the first signal output terminal 31 is lengthened. On the contrary, when it moves in the opposite linear direction, the length of the delay line 37 is shortened, so that the first signal output terminal 31 and the second signal output terminal 32 and the third signal output terminal 33 all have a linearly adjustable phase amplitude difference, which solves the problem that the antenna needs to have a specific beam width required for different application scenarios.

[0040] In an optional embodiment, the power division network 30 includes a first power division channel 34 and a second power division channel 35, wherein the first power division channel 34 introduces the input signal into the meander delay line 36 and transmits it to the second signal output terminal 32 and the third signal output terminal 33, so that the second signal output terminal 32 and the third signal output terminal 33 output fixed amplitude and phase;

[0041] The microstrip line of the second power dividing channel 35 is coupled with the microstrip line of the sliding adjustment plate 2 .

[0042] Specifically, the first power division channel 34 introduces the input signal into the bending delay line 36 and transmits it to the second signal output terminal 32 and the third signal output terminal 33, so that the output signals of the second signal output terminal 32 and the third signal output terminal 33 have a phase difference and an amplitude difference. Therefore, the first power division channel 34 forms a preset phase amplitude output branch 303 with the second signal output terminal 32 and the third signal output terminal 33. The phase amplitude difference of the first power division channel 34 is not limited to setting the phase amplitude difference using a preset extension line, and can also include coupling and other methods to change the phase amplitude. The second power division channel 35 is coupled with the sliding adjustment plate 2 to form an adjustable delay line 37 length channel. Therefore, the second power division channel 35 and the first signal output terminal 31 form an adjustable phase amplitude output branch 302, and finally form a certain power distribution ratio at each output port.

[0043] In an optional embodiment, it also includes an upper adjustment arm 21 and a lower adjustment arm 22;

[0044] The rear end of the back side of the lower adjustment arm 22 is provided with a first through hole 221 with a buckle seat;

[0045] The rear end of the sliding adjustment piece 2 is provided with a second through hole 23;

[0046] A moving transmission rod 211 is provided at the front end of the front side of the upper adjustment arm 21, and a positioning column 212 with a buckle head is provided at the rear end of the back side of the upper adjustment arm 21;

[0047] The PCB circuit board 3 is provided with an avoidance groove 39;

[0048] The positioning column 212 passes through the second through hole 23 and the avoidance groove 39 and is engaged with the first through hole 221. The back side of the upper adjustment arm 21 contacts the back side of the sliding adjustment sheet 2. The microstrip line of the sliding adjustment sheet 2 contacts the microstrip line of the first signal output end 31 of the PCB circuit board 3. The back side of the PCB circuit board 3 contacts the front side of the lower adjustment arm 22.

[0049] Specifically, a microstrip line is provided on the front of the sliding adjustment sheet 2, and a microstrip line is provided on the front of the PCB circuit board. When the moving transmission rod 211 moves linearly toward the signal input port 38, the sliding adjustment sheet 2 is driven to move in the avoidance slot 39 in a direction away from the first signal output terminal 31, thereby lengthening the length of the delay line 37. On the contrary, when the moving transmission rod 211 makes an opposite linear motion, the sliding adjustment sheet 2 is driven to move in the avoidance slot 39 in a direction close to the first signal output terminal 31, thereby shortening the length of the delay line 37, so that there is a linearly adjustable phase amplitude difference between the first signal output terminal 31 and the second signal output terminal 32 and the third signal output terminal 33. The preset stroke of the linear power attenuator 1 corresponds to the area of ​​the avoidance slot 39.

[0050] In an optional embodiment, an annular fastener 24 is further included. The annular fastener 24 is arranged on the outer periphery of the positioning column 212. The annular fastener 244 is used to tightly fit the sliding adjustment sheet 2 and the PCB circuit board 3.

[0051] Specifically, the annular fastener 244 allows the sliding adjustment piece 2 and the PCB circuit board 3 to be in close contact with each other, thereby preventing a gap from being generated between the sliding adjustment piece 2 and the PCB circuit board 3 when the sliding adjustment piece 2 moves, thereby affecting the stability of signal transmission.

[0052] In an optional embodiment, the annular fastener 24 is an O-ring.

[0053] A preferred embodiment of the present application is as follows Figure 4 As shown, it includes a plurality of coaxial cables 4 and two columns of radiation unit groups 5;

[0054] The first signal output terminal 31, the second signal output terminal 32 and the third signal output terminal 33 each have two interfaces, one end of the plurality of coaxial cables 4 are respectively connected to the two interfaces of the first signal output terminal 31, the second signal output terminal 32 and the third signal output terminal 33, and the other end of the plurality of coaxial cables 4 is connected to a single polarization of the radiation unit group 5.

[0055] Specifically, the linear power attenuator 1 changes the amplitude and phase of the input signal by moving the position of the sliding adjustment plate 2. The single polarization of each column of the radiation unit group 5 should be connected to the output port of a single linear power attenuator 1, and the single polarizations of two radiation units can be connected at the same time. The signal with changed amplitude and phase can be used to linearly adjust the beam width of the antenna through the radiation unit group 5, which solves the problem that antennas with different beam widths need to be customized due to the different building sizes and various differences in the size and width of buildings in residential areas, thereby bringing higher R&D costs and failing to meet the needs of actual applications.

[0056] In an optional embodiment, the radiation unit group 5 includes a first radiation unit 51, a second radiation unit 52 and a third radiation unit 53, which are distributed at a preset interval, and the first radiation unit 51 is arranged between the second radiation unit 52 and the third radiation unit.

[0057] Specifically, the two interfaces of the first signal output terminal 31 are respectively connected to a single polarization of the first radiation unit 51, the two interfaces of the second signal output terminal 32 are respectively connected to a single polarization of the second radiation unit 52, and the two interfaces of the third signal output terminal 33 are respectively connected to a single polarization of the third radiation unit 53.

[0058] In an optional embodiment, a reflecting plate 6 is further included, the linear power attenuator 1 is arranged on the back side of the reflecting plate 6, the first radiation unit 51, the second radiation unit 52 and the third radiation unit 53 are all arranged on the front side of the reflecting plate 6, and the reflecting plate 6 can make the antenna beam radiate in a specified direction, and the beam size can be controlled by changing its width and folding height.

[0059] In an optional embodiment, a reflection strip 7 is further included. The reflection strip 7 is provided between each of the first radiation unit 51, the second radiation unit 52 and the third radiation unit 53. The reflection strip 7 can optimize indicators such as polarization isolation and radiation pattern.

[0060] In an optional embodiment, a radome 8 is further included, and the reflector 6 is disposed inside the radome 8 .

[0061] Specifically, the antenna cover 8 can isolate external interference, protect antenna elements, and improve the stability, reliability and performance of the antenna.

[0062] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0063] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0064] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A linear power attenuator, characterized in that: include: Sliding adjustment piece and PCB circuit board; The PCB circuit board is printed with a power division network, and the PCB circuit board includes a first signal output end, a second signal output end, a third signal output end and a signal input port for connecting different radiation units; The sliding adjustment piece can be slidably arranged on the PCB circuit board and coupled with the microstrip line on the PCB circuit board. The displacement of the sliding adjustment piece can control the length of the microstrip line coupled between the sliding adjustment piece and the microstrip line of the first signal output port, so as to control the phase and amplitude of the first signal output end.

2. A linear power attenuator according to claim 1, characterized in that: The power division network includes a first power division channel and a second power division channel, wherein the first power division channel introduces an input signal into the meander delay line and then transmits the input signal to the second signal output end and the third signal output end, so that the second signal output end and the third signal output end output fixed amplitude and phase; The microstrip line of the second power division channel is coupled with the microstrip line of the sliding adjustment sheet.

3. A linear power attenuator according to claim 1, characterized in that: Also included are an upper adjustment arm and a lower adjustment arm; A first through hole with a buckle seat is provided at the rear end of the back side of the lower adjustment arm; A second through hole is provided at the rear end of the sliding adjustment sheet; A movable transmission rod is provided at the front end of the front side of the upper adjustment arm, and a positioning column with a buckle head is provided at the rear end of the back side of the upper adjustment arm; The PCB circuit board is provided with an avoidance groove; The positioning column passes through the second through hole and the avoidance groove and is engaged with the first through hole, the back side of the upper adjustment arm contacts the back side of the sliding adjustment sheet, the microstrip line of the sliding adjustment sheet contacts the microstrip line of the first signal output end of the PCB circuit board, and the back side of the PCB circuit board contacts the front side of the lower adjustment arm.

4. A linear power attenuator according to claim 3, characterized in that: It also includes an annular fastener, which is arranged on the outer periphery of the positioning column and is used to tightly fit the sliding adjustment sheet and the PCB circuit board.

5. A linear power attenuator according to claim 4, characterized in that: The annular fastener is an O-type rubber ring.

6. A vertical beam adjustable antenna using the linear power attenuator according to any one of claims 1 to 5, characterized in that: It includes a number of coaxial cables and two rows of radiation unit groups; The first signal output end, the second signal output end and the third signal output end each have two interfaces, one end of the plurality of coaxial cables are respectively connected to the two interfaces of the first signal output end, the second signal output end and the third signal output end, and the other end of the plurality of coaxial cables is connected to a single polarization of the radiation unit group.

7. The vertical beam adjustable antenna according to claim 6, characterized in that: The radiation unit group includes a first radiation unit, a second radiation unit and a third radiation unit, which are distributed according to a preset interval, and the first radiation unit is arranged between the second radiation unit and the third radiation unit.

8. The vertical beam adjustable antenna according to claim 7, characterized in that: It also includes a reflecting plate, the linear power attenuator is arranged on the back side of the reflecting plate, and the first radiation unit, the second radiation unit and the third radiation unit are all arranged on the front side of the reflecting plate.

9. The vertical beam adjustable antenna according to claim 7, characterized in that: It also includes a reflection strip, and the reflection strip is arranged between each of the first radiation unit, the second radiation unit and the third radiation unit.

10. The vertical beam adjustable antenna according to claim 8, characterized in that: It also includes an antenna cover, and the reflector is arranged in the antenna cover.

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