Balun-integrated full-wave oscillator radiation unit

Abstract

The utility model discloses a balun-integrated full-wave oscillator radiation unit, and aims to solve the problems that a low-frequency bowl-shaped oscillator and a high-frequency die-cast half-wave oscillator are used in the conventional high-low frequency nesting scheme, so that the requirements of miniaturization and light weight of an antenna are difficult to meet, the processing cost is extremely high, and the cost is low. And meanwhile, the high-frequency oscillator is arranged in the bowl-shaped oscillator, so that the horizontal plane wave width deformation of the high-frequency oscillator is caused, the gain is influenced, and the market demand cannot be met. The Balun-integrated full-wave oscillator radiation unit comprises a fixed support and a PCB radiation plate installed on the fixed support. The structure of the full-wave oscillator is relatively simple, assembly can be completed only by installing the single-balun integrated feed sheet in the fixing support and welding and fixing the single-balun integrated feed sheet and the PCB radiation plate, miniaturization design can be achieved through the microstrip technology, the printed circuit technology and the like due to the fact that single-face embedded coupling is adopted, the requirement of miniaturization equipment is met, machining is easy, and cost is low. The production efficiency can be greatly improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of mobile communication technology, specifically relating to a balun-integrated full-wave oscillator radiating unit. Background Technology

[0002] With the rapid development of wireless communication technology, antennas play an increasingly important role in communication systems. Antenna technology mainly focuses on parameters such as antenna gain, bandwidth, and polarization. However, a single antenna design often cannot meet these requirements simultaneously. Therefore, a high-low frequency nested solution that can simultaneously provide ultra-wideband, high-gain, dual-polarization, multi-port, and multi-band characteristics is needed.

[0003] The existing high- and low-frequency nested solutions mainly use a low-frequency bowl-shaped vibrator and a high-frequency die-cast half-wave vibrator. However, PCB half-wave arrays cannot meet the market's high-gain requirements, and bowl-shaped die-cast arrays cannot meet the market's requirements for multi-frequency antennas, let alone meet the requirements for antenna miniaturization and lightweighting. Their processing costs are extremely high. At the same time, the high-frequency vibrator is inside the bowl-shaped vibrator, which will cause horizontal plane waveform distortion of the high-frequency vibrator, affecting the gain and failing to meet market demands. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a balun-integrated full-wave dipole radiating unit. This balun-integrated full-wave dipole radiating unit aims to solve the technical problems of existing high- and low-frequency nested schemes that use a low-frequency bowl-shaped dipole and a high-frequency die-cast half-wave dipole, which are difficult to meet the requirements for antenna miniaturization and lightweighting, have extremely high processing costs, and cause horizontal plane waveform distortion of the high-frequency dipole inside the bowl-shaped dipole, affecting the gain and failing to meet market demands.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a balun-integrated full-wave oscillator radiating unit, including a fixed bracket and a PCB radiating board mounted on the fixed bracket. The PCB radiating board includes a PCB dielectric substrate, a folded oscillator and a radiating microstrip line disposed on the PCB dielectric substrate. The PCB dielectric substrate is a single-layer PCB and the folded oscillator and the radiating microstrip line are located on the same plane. A long strip-shaped coupling microstrip is provided between the folded oscillator and the radiating microstrip line. The folded oscillator includes two oscillator arms and two coupling oscillators. The portions of the two oscillator arms near the middle of the PCB dielectric substrate are connected to each other and form a feed plate solder joint. The portions of the two oscillator arms away from the middle of the PCB dielectric substrate are separated from each other and then approach each other and are fixedly connected to the coupling oscillators. A filter node extends from the side of the two oscillator arms that are close to each other.

[0008] The single-balun integrated feeding sheet is mounted in the interior of the fixed support, the single-balun integrated feeding sheet is a single-sided copper-clad sheet, and the feeding microstrip line is arranged on the single-balun integrated feeding sheet; the feeding microstrip line is electrically connected with the PCB radiating plate and is used for feeding the PCB radiating plate.

[0009] Preferably, the fixed support comprises a column, the top end of the column is fixedly connected with a balance arm, the middle part of the balance arm is diagonally fixedly connected with a guide column, the top end of the guide column is fixedly connected with a conical guide part, the outer side of the balance arm is fixedly connected with a plurality of elastic clamping columns, the PCB dielectric substrate is provided with guide holes and clamping holes corresponding to the guide column and the elastic clamping column, and the interior of the column is provided with a through hole, and the single-balun integrated feeding sheet is located in the interior of the through hole.

[0010] Further, the single-balun integrated feeding sheet comprises a positioning part and a first connecting part connected in sequence, the middle part of the PCB dielectric substrate is provided with a positioning hole corresponding to the positioning part, the feeding microstrip line comprises a feeding sheet-45° microstrip line and a feeding sheet+45° microstrip line arranged on the first connecting part, the top end of the feeding sheet-45° microstrip line and the feeding sheet+45° microstrip line extends to the positioning part and is provided with a bent-shaped dielectric substrate welding point, and the bottom end of the feeding sheet-45° microstrip line and the feeding sheet+45° microstrip line is provided with a cable network welding point.

[0011] Still further, the balance arm is larger than the area of the fixed support, the balance arm is connected by a plurality of horizontal arms and a plurality of vertical arms, the upper surfaces of the horizontal arms and the vertical arms are provided with support blocks, the support blocks are provided with heat dissipation holes, the elastic clamping column comprises a cylinder integrally formed with the balance arm, the top end of the cylinder is fixedly connected with a protrusion, and the cylinder is provided with a through groove penetrating through the protrusion.

[0012] Still further, the PCB dielectric substrate is square and provided with rounded corners at four corners, the folded dipoles are four groups, the four groups of folded dipoles are fixed at four corners of the side of the PCB dielectric substrate away from the single-balun integrated feeding sheet and form a Chinese character field structure, and the folded dipoles are located on the inner side of the radiating microstrip line.

[0013] Still further, the two dipole arms and the two coupled dipoles are symmetrically arranged along the diagonal line of the PCB dielectric substrate.

[0014] Still further, the radiating microstrip lines and the long strip-shaped coupling microstrip lines are four groups, the four groups of radiating microstrip lines and the long strip-shaped coupling microstrip lines are respectively arranged around the center point of the PCB dielectric substrate and are uniformly and symmetrically arranged on the four sides of the PCB dielectric substrate along the horizontal and vertical directions.

[0015] Further, the vibrator arm comprises a starting part and a second connecting part connected with each other, the starting part and the second connecting part form an L-shaped structure, the other end of the starting part is connected with the feeding sheet welding point, the other end of the second connecting part is connected with the coupling vibrator, and the filtering node is in the L-shaped structure and connected with the starting part.

[0016] Further, the via holes are arranged at four corners of the PCB medium substrate and extend to the inside of the coupling vibrator.

[0017] Further, the width of the filtering node, the second connecting part, the radiation microstrip line and the long strip-shaped coupling microstrip is smaller than the width of the starting part, and the long strip-shaped coupling microstrip is arranged in parallel between the second connecting part and the radiation microstrip line.

[0018] (5) Advantageous effects

[0019] Compared with the prior art, the utility model has the advantages that:

[0020] In the above scheme, the structure of the full-wave vibrator is relatively simple, and the assembly can be completed only by installing the single-balen integrated feeding sheet in the fixed support and welding and fixing with the PCB radiation plate. Since the single-sided embedded coupling is adopted, the miniaturization design can be realized through microstrip technology and printed circuit technology, the demand of miniaturized equipment is met, and the processing is easy. The utility model is very suitable for mass production, can greatly improve the production efficiency and reduce the production cost. At the same time, the batch production can guarantee the consistency and stability of the product and improve the quality of the product.

[0021] In the above scheme, the radiation surface of the PCB radiation plate and the single-balen integrated feeding sheet adopt a single-sided copper-clad plate, which not only has lower production cost, but also changes the original double-sided copper-clad coupling point of the PCB radiation plate to a single-sided embedded coupling. The single-balen integrated feeding sheet can effectively improve the unit isolation and high gain, guarantee the PIM index requirement, effectively enhance the radiation efficiency and improve the directivity, and improve the gain. The filtering node design can effectively reduce the coupling between the vibrators and the influence between them, improve the coverage range of the communication system, and better meet the market demand. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is an explosion structure schematic view of the balun integrated full-wave vibrator radiation unit.

[0023] Figure 2 It is a front view structure schematic view of the balun integrated full-wave vibrator radiation unit.

[0024] Figure 3 It is a three-dimensional structure schematic view of the PCB radiation plate of the balun integrated full-wave vibrator radiation unit.

[0025] Figure 4A perspective structural schematic diagram of a fixed support of a balun integrated full-wave dipole radiating unit;

[0026] Figure 5 A structural schematic diagram of a single balun integrated feed sheet of a balun integrated full-wave dipole radiating unit;

[0027] Figure 6 A top view structural schematic diagram of a PCB radiating plate of a balun integrated full-wave dipole radiating unit;

[0028] Figure 7 A structural schematic diagram of a balun integrated full-wave dipole radiating unit; Figure 4 An enlarged structural schematic diagram at A in FIG. 6.

[0029] The labels in the drawings are as follows: 1, fixed support; 2, PCB radiating plate; 3, PCB dielectric substrate; 4, folded dipole; 401, dipole arm; 402, coupled dipole; 403, feed sheet soldering point; 404, filter node; 5, radiating microstrip line; 6, long strip-shaped coupled microstrip; 7, single balun integrated feed sheet; 8, feed microstrip line; 9, round corner; 10, via hole; 101, stand; 102, balance arm; 103, guide column; 104, conical guide; 105, elastic clamping column; 106, through hole; 1021, horizontal arm; 1022, vertical arm; 1023, support block; 1024, heat dissipation hole; 1051, cylindrical column; 1052, protruding block; 1053, through slot; 301, guide hole; 302, clamping hole; 303, positioning hole; 701, positioning part; 702, first connecting part; 801, feed sheet-45° microstrip line; 802, feed sheet+45° microstrip line; 803, dielectric substrate soldering point; 804, cable network soldering point; 4011, starting part; 4012, second connecting part. DETAILED DESCRIPTION

[0030] This detailed description is a balun integrated full-wave dipole radiating unit, the structural schematic diagram is as Figures 1-7As shown, the balun integrated full-wave dipole radiation unit includes a fixed support 1 and a PCB radiation plate 2 mounted on the fixed support 1, the PCB radiation plate 2 is full-wave dipole radiation, which can realize higher electromagnetic radiation at a certain frequency, convert the input electrical energy into electromagnetic wave energy and effectively emit it out, compared with other types of antennas, it can produce stronger signal radiation under the same input power, the PCB radiation plate 2 includes a PCB dielectric substrate 3, a folded dipole 4 and a radiation microstrip line 5 arranged on the PCB dielectric substrate 3, the PCB dielectric substrate 3 is a single-layer PCB, and the folded dipole 4 and the radiation microstrip line 5 are located in the same plane, a long strip-shaped coupling microstrip 6 is arranged between the folded dipole 4 and the radiation microstrip line 5, the folded dipole 4 includes two dipole arms 401 and two coupling dipoles 402, the two dipole arms 401 are connected to each other near the part of the middle of the PCB dielectric substrate 3 and form a feed sheet welding point 403, the two dipole arms 401 are separated from each other away from the middle of the PCB dielectric substrate 3 and then fixedly connected to the coupling dipole 402 near the coupling dipole 402, the two dipole arms 401 extend a filter node 404 on the side close to each other;

[0031] A single balun integrated feed sheet 7 and a feed microstrip line 8, the single balun integrated feed sheet 7 is mounted inside the fixed support 1, the single balun integrated feed sheet 7 is a single-sided copper-clad plate, and the feed microstrip line 8 is arranged on the single balun integrated feed sheet 7, the feed microstrip line 8 is electrically connected with the PCB radiation plate 2 and is used for feeding the PCB radiation plate 2;

[0032] By using a single-sided copper-clad plate for the radiation surface of the PCB radiation plate 2 and the single balun integrated feed sheet 7, not only the production cost is lower, but also the original double-sided copper-clad coupling point is changed to embedded coupling, which can effectively improve the unit isolation and high gain, ensure the PIM index requirement, effectively enhance the radiation efficiency and improve the directivity, and improve the gain, and the filter node 404 designed to be arranged can effectively reduce the coupling between the dipoles and the influence between them.

[0033] As shown in Figure 4 and Figure 6 In this embodiment, the fixed support 1 includes a stand 101, the top end of the stand 101 is fixedly connected with a balance arm 102, the middle part of the balance arm 102 is fixedly connected with a guide column 103 at opposite angles, the top end of the guide column 103 is fixedly connected with a conical guide part 104, the outer side of the balance arm 102 is fixedly connected with a plurality of elastic clamping columns 105, the PCB dielectric substrate 3 is provided with guide holes 301 and clamping holes 302 corresponding to the guide column 103 and the elastic clamping column 105, the inside of the stand 101 is provided with a through hole 106, and the single balun integrated feed sheet 7 is located inside the through hole 106.

[0034] Specifically, the whole fixing support 1 is integrally injection molded, when installing, the PCB medium substrate 3 is placed on the balance arm 102, at this time, it is guided and inserted into the guide hole 301 through the conical guide part 104 and the guide column 103, at this time, the elastic clamping column 105 is inserted into the clamping hole 302 to fix the PCB medium substrate 3, so that it is installed conveniently and quickly through the buckle.

[0035] As shown in Figure 5 and Figure 6 shown, in the embodiment, the single-barrel integrated feed patch 7 includes a positioning part 701 and a first connecting part 702 connected in sequence, the middle part of the PCB medium substrate 3 is provided with a positioning hole 303 corresponding to the positioning part 701, the feed microstrip line 8 includes a feed patch-45° microstrip line 801 and a feed patch+45° microstrip line 802 arranged on the first connecting part 702, the top ends of the feed patch-45° microstrip line 801 and the feed patch+45° microstrip line 802 extend to the positioning part 701 and are provided with a bent-shaped medium substrate welding point 803, and the bottom ends of the feed patch-45° microstrip line 801 and the feed patch+45° microstrip line 802 are provided with cable network welding points 804.

[0036] By integrating the positive and negative polarization feed patch microstrip on a single-barrel integrated feed patch 7, when fixed with the PCB medium substrate 3, the positioning part 701 is inserted into the positioning hole 303, and the medium substrate welding point 803 is welded and fixed with the feed patch welding point 403 to realize the communication of signals, thereby reducing the assembly process and reducing the cost.

[0037] As shown in Figure 4 and Figure 7 shown, in the embodiment, the balance arm 102 is larger than the area of the fixing support 1, the balance arm 102 is connected by a plurality of horizontal arms 1021 and a plurality of vertical arms 1022, the upper surfaces of the horizontal arms 1021 and the vertical arms 1022 are provided with support blocks 1023, the support blocks 1023 are provided with heat dissipation holes 1024, the elastic clamping column 105 includes a cylinder 1051 integrally formed with the balance arm 102, the top end of the cylinder 1051 is fixedly connected with a protruding block 1052, and the cylinder 1051 is provided with a through slot 1053 penetrating through the protruding block 1052.

[0038] In this way, after the PCB medium substrate 3 is installed on the balance arm 102, the PCB medium substrate 3 is in contact with the support block 1023, since the balance arm 102 is composed of a plurality of horizontal arms 1021 and a plurality of vertical arms 1022, and the support block 1023 is provided with heat dissipation holes 1024, the PCB medium substrate 3 is better heat-dissipated, and the radiation performance is improved.

[0039] As shown in Figure 1 and Figure 3As shown in the figure, in the embodiment, the PCB medium substrate 3 is square and has rounded corners 9 at four corners, and the four groups of folded dipoles 4 are fixed at the four corners of the side of the PCB medium substrate 3 away from the single-barrel integrated feed sheet 7, forming a cross-shaped structure. The folded dipoles 4 are located inside the radiation microstrip line 5, and the two dipole arms 401 and the two coupling dipoles 402 are symmetrically arranged along the diagonal of the PCB medium substrate 3.

[0040] Specifically, the PCB medium substrate 3 is provided with a circuit participating in the radiation of electromagnetic waves, and the PCB medium substrate 3 adopts a FRA4 single-sided copper-clad plate material, thereby reducing the cost. By adjusting the coupling degree and impedance matching between the folded dipoles 4, the radiation microstrip line 5, and the long strip-shaped coupling microstrip 6, the standing wave and isolation index of the radiation unit can be improved, and the diagonal symmetry of the whole makes it more beautiful.

[0041] As shown in the figure, Figure 3 and Figure 6 As shown in the figure, in the embodiment, the radiation microstrip line 5 and the long strip-shaped coupling microstrip 6 are both four groups, and the four groups of radiation microstrip lines 5 and long strip-shaped coupling microstrips 6 are both arranged symmetrically and uniformly around the center point of the PCB medium substrate 3 along the horizontal and vertical directions.

[0042] As shown in the figure, Figure 3 and Figure 6 As shown in the figure, in the embodiment, the dipole arm 401 includes a starting portion 4011 and a second connecting portion 4012 connected to each other, and the starting portion 4011 and the second connecting portion 4012 form an L-shaped structure. The other end of the starting portion 4011 is connected to the feed sheet welding point 403, the other end of the second connecting portion 4012 is connected to the coupling dipole 402, the filter node 404 is an L-shaped structure and is connected to the starting portion 4011, and the four corners of the PCB medium substrate 3 are provided with through holes 10 extending into the coupling dipole 402.

[0043] As shown in the figure, Figure 6 As shown in the figure, in the embodiment, the widths of the filter node 404, the second connecting portion 4012, the radiation microstrip line 5, and the long strip-shaped coupling microstrip 6 are all less than the width of the starting portion 4011, and the long strip-shaped coupling microstrip 6 is located between the second connecting portion 4012 and the radiation microstrip line 5 and is arranged in parallel.

[0044] The technical scheme provided by the utility model discloses, through the radiation surface and single bellow integrated feed sheet 7 of PCB radiation board 2 adopt single side copper clad plate material, not only production cost is lower, and the original double side copper clad coupling point changes into the embedded coupling of single face, can effectively improve unit isolation and high gain similarly, can also guarantee PIM index requirement, effectively enhance the radiation efficiency improvement directivity, improve gain, the filter node 404 design of setting simultaneously can effectively reduce the coupling between each oscillator and the influence between each other, improve the coverage of communication system, and the structure of this full wave oscillator is relatively simple, only need to install single bellow integrated feed sheet 7 in fixed support 1 with PCB radiation board 2 welding fixed can complete assembly, since adopting the embedded coupling of single face, can realize miniaturization design through microstrip technology, printed circuit technology etc., satisfy the demand of miniaturization equipment, and processing is easy, very suitable for mass production, can greatly improve production efficiency, reduce production cost, simultaneously, mass production can guarantee the consistency and stability of product, improve the quality of product.

[0045] All the technical features in the embodiment can be freely combined according to actual needs.

[0046] The above embodiment is a preferred implementation scheme of the utility model, and the utility model can also be implemented in other manners, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the utility model.

Claims

1. A balun integrated full wave dipole radiating element, characterized by, The utility model relates to a kind of PCB radiating plate and single-balen integrated feed sheet, including: Fixed support (1) and the PCB radiating plate (2) installed on fixed support (1), the PCB radiating plate (2) includes PCB medium substrate (3), the folding vibrator (4) and radiating microstrip line (5) being set on PCB medium substrate (3), the PCB medium substrate (3) is single-layer PCB and folding vibrator (4) and radiating microstrip line (5) are located in the same plane, long strip-shaped coupling microstrip (6) is arranged between folding vibrator (4) and radiating microstrip line (5), the folding vibrator (4) includes two vibrator arms (401) and two coupling vibrators (402), two the vibrator arms (401) are connected to each other and are formed with feed sheet welding point (403) near the part of middle part of PCB medium substrate (3), two the vibrator arms (401) are separated from each other after being separated from the part of middle part of PCB medium substrate (3) and are fixedly connected with coupling vibrator (402) close to, filter node (404) is extended on the side of two the vibrator arms (401) close to each other; Single-balen integrated feed sheet (7) and feed microstrip line (8), the single-balen integrated feed sheet (7) is installed in the inside of fixed support (1), the single-balen integrated feed sheet (7) is single-sided copper-clad plate and feed microstrip line (8) is set on single-balen integrated feed sheet (7), the feed microstrip line (8) is electrically connected with PCB radiating plate (2) and is used to feed PCB radiating plate (2); The fixed support (1) includes stand (101), the top end of the stand (101) is fixedly connected with balance arm (102), the middle part of the balance arm (102) is diagonally fixedly connected with guide column (103), the top end of the guide column (103) is fixedly connected with conical guide portion (104), the outside of the balance arm (102) is fixedly connected with multiple elastic clamping columns (105), the guide hole (301) and the clamping hole (302) corresponding with guide column (103) and elastic clamping column (105) are set on the PCB medium substrate (3), the inside of the stand (101) is provided with through hole (106), the single-balen integrated feed sheet (7) is located in the inside of through hole (106); The PCB medium substrate (3) is square and is provided with round corner (9) in four corners, the folding vibrator (4) is four groups, four groups The folding vibrator (4) is fixed in the four corners of the side of PCB medium substrate (3) away from single-balen integrated feed sheet (7), and forms a pin-shaped structure, the folding vibrator (4) is located in the inside of radiating microstrip line (5).

2. The balun integrated full wave dipole radiating element of claim 1, wherein, The single-balen integrated feed patch (7) comprises a positioning part (701) and a first connecting part (702) connected in sequence, a middle part of the PCB dielectric substrate (3) is provided with a positioning hole (303) corresponding to the positioning part (701), the feed microstrip line (8) comprises a feed patch-45° microstrip line (801) and a feed patch+45° microstrip line (802) arranged on the first connecting part (702), top ends of the feed patch-45° microstrip line (801) and the feed patch+45° microstrip line (802) extend to the positioning part (701) and are provided with a bent dielectric substrate welding point (803), and bottom ends of the feed patch-45° microstrip line (801) and the feed patch+45° microstrip line (802) are provided with cable network welding points (804).

3. The balun integrated full wave dipole radiating element of claim 2, wherein, The balancing arm (102) is larger than the area of the fixed support (1), the balancing arm (102) is connected by a plurality of cross arms (1021) and a plurality of vertical arms (1022), the upper surfaces of the cross arms (1021) and the vertical arms (1022) are both provided with support blocks (1023), the support blocks (1023) are provided with heat dissipation holes (1024), and the elastic clamping column (105) comprises a column (1051) integrally formed with the balancing arm (102), the top end of the column (1051) is fixedly connected with a protruding block (1052), and a through groove (1053) penetrating through the protruding block (1052) is formed in the column (1051).

4. The balun integrated full wave dipole radiating element of claim 1, wherein, The two vibrator arms (401) and the two coupled vibrators (402) are arranged symmetrically along the diagonal line of the PCB dielectric substrate (3).

5. The balun integrated full wave dipole radiating element of claim 4, wherein, The radiation microstrip line (5) and the long strip-shaped coupling microstrip (6) are both four groups, and the four groups of the radiation microstrip line (5) and the long strip-shaped coupling microstrip (6) are both arranged around the center point of the PCB dielectric substrate (3) and symmetrically on the four edges of the PCB dielectric substrate (3) along the horizontal and vertical directions.

6. The balun integrated full wave dipole radiating element of claim 5, wherein, The vibrator arm (401) comprises a starting part (4011) and a second connecting part (4012) connected to each other, the starting part (4011) and the second connecting part (4012) form an L-shaped structure, the other end of the starting part (4011) is connected with the feed patch welding point (403), the other end of the second connecting part (4012) is connected with the coupled vibrator (402), and the filter node (404) is an L-shaped structure and is connected with the starting part (4011).

7. The balun integrated full wave dipole radiating element of claim 6, wherein, The four corners of the PCB dielectric substrate (3) are provided with through holes (10), and the through holes (10) extend into the coupled vibrator (402).

8. The balun integrated full wave dipole radiating element of claim 7, wherein, The widths of the filter node (404), the second connecting part (4012), the radiation microstrip line (5) and the long strip-shaped coupling microstrip (6) are all smaller than the width of the starting part (4011), and the long strip-shaped coupling microstrip (6) is arranged between the second connecting part (4012) and the radiation microstrip line (5) in parallel.

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