Novel antenna combiner
By adjusting the design of resonant rod gap and reinforcement rib height, the problem that existing antenna combiners are difficult to meet performance indicators when pursuing miniaturization and lightweighting is solved, and the effect of reducing costs and improving stability without increasing the fly rod is achieved.
Patent Information
- Application Number
- CN202421967899.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-14
AI Technical Summary
While existing antenna combiners pursue miniaturization and lightweight, they are difficult to meet performance indicators, and adding fly rods to achieve these indicators will increase material and production costs and affect product stability.
A new antenna combiner was designed to control the coupling bandwidth and fly rod zero point by adjusting the gap between the resonant rod and the height of the reinforcement ribs, avoiding the need for increased fly rods, thereby reducing costs and improving product stability.
It achieves meeting the requirements of performance indicators without adding a fly rod, reducing material and production costs, and improving product stability and qualification rate.
Smart Images
Figure CN222915138U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of antenna combiners, in particular to a novel antenna combiner. Background Technique
[0002] The antenna combiners of the prior art use resonant cavity designs, but they are large in volume and heavy in weight. Since volume and weight are very critical in antenna use.
[0003] The antenna combiners of the prior art also use the hairpin filter scheme, which can reduce the volume and weight. However, it is difficult to add fly rods to the existing hairpin filter scheme, and fly rods need to be added to meet the technical index requirements. This increases the material cost and production cost because adding fly rods will affect the product stability and index performance.
[0004] Therefore, how to adopt a novel hairpin filter scheme to greatly reduce the volume and weight while meeting the index requirements, without the need to additionally add fly rods, reduce the material cost and production cost, and improve the product stability and index performance is an urgent research content. Content of the Utility Model
[0005] The purpose of the utility model is to provide a novel antenna combiner to solve the problems raised in the above background technique.
[0006] To achieve the above purpose, the utility model provides the following technical solution: A novel antenna combiner, including a housing. A first input port, a COM port, and a second input port are provided on one side of the housing. The COM port is the combined port of the first input port and the second input port. On one side inside the housing, a first resonant rod, a second resonant rod, a third resonant rod, a fourth resonant rod, and a fifth resonant rod are arranged in sequence. The fifth resonant rod is an input tap rod. The first input port is internally provided with a cable and is connected to the fifth resonant rod. Among them, the gaps and heights between the first resonant rod, the second resonant rod, the third resonant rod, and the fourth resonant rod can be adjusted according to the technical index requirements to control the coupling bandwidth and the fly rod zero point. On the other side inside the housing, a seventh resonant rod, an eighth resonant rod, a ninth resonant rod, a tenth resonant rod, and an eleventh resonant rod are arranged in sequence. Among them, the gaps and heights between the seventh resonant rod and the eighth resonant rod can be adjusted according to the technical index requirements to control the coupling bandwidth and the fly rod zero point. The eleventh resonant rod is a zero cavity, and the zero cavity can generate a suppression zero point. The second input port is internally provided with a cable and is connected to the tenth resonant rod. A sixth resonant rod is provided in the middle inside the housing. The COM port is internally provided with a cable and is connected to the sixth resonant rod. Coupling will occur between the resonant rods.
[0007] Preferably, the first resonant rod and the second resonant rod are connected by reinforcing rib one, the second resonant rod and the third resonant rod are connected by reinforcing rib two, and the third resonant rod and the fourth resonant rod are connected by reinforcing rib three. The bandwidth and zero point suppression can be adjusted by adjusting the gap between the resonant rods and the height of the reinforcing ribs.
[0008] Preferably, the seventh resonant rod and the eighth resonant rod are connected via a reinforcing rib four, and a negative coupling zero point is generated by adjusting the gap between the resonant rods and the height of the reinforcing rib.
[0009] Preferably, the first input port is 694-806Mhz, and the second input port is 824-894Mhz.
[0010] Preferably, cover plates are detachably connected to the upper and lower sides of the shell.
[0011] Preferably, the first resonant rod, the second resonant rod, the third resonant rod and the fourth resonant rod are in the same direction and opposite to the direction of the fifth resonant rod.
[0012] Preferably, the first input port, the COM port and the second input port are in the same direction, and the cables of the three ports are respectively connected to the resonant rod through tap bosses, and the tap bosses are integrated with the resonant rod.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. The utility model solves the problem that the combing filter of the existing product needs to add a flying rod to achieve performance indicators, thereby reducing material and production costs and improving product stability and index performance;
[0015] 2. The overall design structure of the utility model is simple, there are no other accessories in the entire cavity, only one cavity is needed to meet the index requirements, which reduces the material cost and production cost of finished products, and improves the product qualification rate and product stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic diagram of the three-dimensional structure of a novel antenna combiner proposed by the utility model;
[0017] Figure 2 This is a schematic diagram of the main structure of a novel antenna combiner proposed by the utility model;
[0018] Figure 3 A schematic diagram of the internal structure of a novel antenna combiner proposed in the utility model Figure 1 ;
[0019] Figure 4 A schematic diagram of the internal structure of a novel antenna combiner proposed in the utility model Figure 2 ;
[0020] Figure 5 This is the circuit schematic diagram of a new type of antenna combiner proposed by the present utility model.
[0021] In the figure: 1. First input port; 11. First resonant rod; 12. Second resonant rod; 13. Third resonant rod; 14. Fourth resonant rod; 15. Fifth resonant rod; 16. Reinforcing rib three; 17. Reinforcing rib two; 18. Reinforcing rib one; 2. COM port; 21. Sixth resonant rod; 3. Second input port; 31. Seventh resonant rod; 32. Eighth resonant rod; 33. Ninth resonant rod; 34. Tenth resonant rod; 35. Eleventh resonant rod; 36. Reinforcing rib four; 4. Tap boss. Specific implementation manners
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0023] Please refer to Figures 1-4 , an embodiment provided by the present utility model: A new type of antenna combiner includes a housing. The upper and lower sides of the housing are detachably connected with cover plates. One side of the housing is provided with a first input port 1, a COM port 2, and a second input port 3. The first input port 1 is 694 - 806Mhz, the second input port 3 is 824 - 894Mhz, and the COM port 2 is the combined port of the first input port 1 and the second input port 3. On one side inside the housing, there are sequentially arranged a first resonant rod 11, a second resonant rod 12, a third resonant rod 13, a fourth resonant rod 14, and a fifth resonant rod 15. The fifth resonant rod 15 is an input tap rod. The first input port 1 is internally provided with a cable and is connected to the fifth resonant rod 15. Among them, the first resonant rod 11, the second resonant rod 12, the third resonant rod 13, and the fourth resonant rod 14 are in the same direction and are opposite to the direction of the fifth resonant rod 15. Different directions can increase coupling, thereby meeting the bandwidth requirements. The gaps and heights between the first resonant rod 11, the second resonant rod 12, the third resonant rod 13, and the fourth resonant rod 14 can be adjusted according to the technical index requirements to control the coupling bandwidth and the fly rod zero point. The first resonant rod 11 and the second resonant rod 12 are connected by a reinforcing rib one 18, the second resonant rod 12 and the third resonant rod 13 are connected by a reinforcing rib two 17, and the third resonant rod 13 and the fourth resonant rod 14 are connected by a reinforcing rib three 16. By adjusting the gaps between the resonant rods and the heights of the reinforcing ribs to adjust the bandwidth and suppress the zero point, it is thus possible to solve the out-of-band suppression problem without adding a fly rod.
[0024] On the other side inside the housing, the seventh resonant rod 31, the eighth resonant rod 32, the ninth resonant rod 33, the tenth resonant rod 34, and the eleventh resonant rod 35 are arranged in sequence. The gap and height between the seventh resonant rod 31 and the eighth resonant rod 32 can be adjusted according to the technical index requirements to control the coupling bandwidth and the fly rod zero point. The seventh resonant rod 31 and the eighth resonant rod 32 are connected by the fourth reinforcing rib 36. By adjusting the gap between the resonant rods and the height of the reinforcing rib, a negative coupling zero point is generated. The traditional method requires adding a fly rod between the first and the third resonant rods to achieve this. The eleventh resonant rod 35 is a zero cavity, and the zero cavity can generate a suppression zero point.
[0025] The second input port 3 is internally provided with a cable and is connected to the tenth resonant rod 34. The sixth resonant rod 21 is arranged in the middle inside the housing. The COM port 2 is internally provided with a cable and is connected to the sixth resonant rod 21. Coupling will occur between the resonant rods.
[0026] It should be noted that the first input port 1, the COM port 2, and the second input port 3 are in the same direction. The cables of the three ports are respectively connected to the resonant rods through the tap bosses. The tap bosses and the resonant rods are integrated. Please refer to Figures 1-4 , the tap boss 4 and the resonant rod are integrally designed. In actual use, the inner conductor of the cable can be directly welded on the boss without welding an additional tap. The advantage is that the assembly is simple and there is no need to consider the height of the assembled tap. Because of the integrated design, the structure is very simple, and the third-order intermodulation index can be made better.
[0027] Please refer to Figure 5 , which is the circuit schematic diagram of a new type of antenna combiner proposed by the present utility model. The two signals of 700 MHz at the first input port 1 and 850 MHz at the second input port 3 are combined into one path and output from the COM port 2. The first input port 1 has 5 resonant cavities and 3 fly rod zero points, which respectively refer to Figure 5 the numbers 2 - 4, 3 - 5, 4 - 6 in Figure 5 . The second input port 3 also has 5 resonant cavities, and the fly rod zero points are
[0028] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non - restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.
Claims
1. A novel antenna combiner, characterized in that: The invention comprises a shell, wherein a first input port (1), a COM port (2) and a second input port (3) are provided on one side of the shell, wherein the COM port (2) is a combined port of the first input port (1) and the second input port (3), wherein a first resonant rod (11), a second resonant rod (12), a third resonant rod (13), a fourth resonant rod (14) and a fifth resonant rod (15) are arranged in sequence on one side of the shell, wherein the fifth resonant rod (15) is an input tap rod, wherein a cable is built into the first input port (1) and connected to the fifth resonant rod (15), wherein the gap and height between the first resonant rod (11), the second resonant rod (12), the third resonant rod (13) and the fourth resonant rod (14) can be adjusted according to technical index requirements. The coupling bandwidth and the flying rod zero point are adjusted and controlled. A seventh resonant rod (31), an eighth resonant rod (32), a ninth resonant rod (33), a tenth resonant rod (34) and an eleventh resonant rod (35) are arranged in sequence on the other side of the shell. The gap and height between the seventh resonant rod (31) and the eighth resonant rod (32) can be adjusted according to technical index requirements to control the coupling bandwidth and the flying rod zero point. The eleventh resonant rod (35) is a zero cavity, which can generate a suppression zero point. The second input port (3) has a built-in cable and is connected to the tenth resonant rod (34). A sixth resonant rod (21) is provided in the middle of the shell. The COM port (2) has a built-in cable and is connected to the sixth resonant rod (21). Coupling occurs between the resonant rods.
2. The novel antenna combiner according to claim 1, characterized in that: The first resonant rod (11) and the second resonant rod (12) are connected via a reinforcing rib one (18), the second resonant rod (12) and the third resonant rod (13) are connected via a reinforcing rib two (17), and the third resonant rod (13) and the fourth resonant rod (14) are connected via a reinforcing rib three (16). The bandwidth and the zero point suppression are adjusted by adjusting the gap between the resonant rods and the height of the reinforcing ribs.
3. The novel antenna combiner according to claim 1 is characterized in that: The seventh resonant rod (31) and the eighth resonant rod (32) are connected via a reinforcing rib four (36), and a negative coupling zero point is generated by adjusting the gap between the resonant rods and the height of the reinforcing rib.
4. The novel antenna combiner according to claim 1, characterized in that: The first input port (1) is 694-806Mhz, and the second input port (3) is 824-894Mhz.
5. The novel antenna combiner according to claim 1 is characterized in that: Cover plates are detachably connected to the upper and lower sides of the shell.
6. The novel antenna combiner according to claim 1, characterized in that: The first resonant rod (11), the second resonant rod (12), the third resonant rod (13) and the fourth resonant rod (14) are in the same direction and in the opposite direction to the fifth resonant rod (15).
7. The novel antenna combiner according to claim 1 is characterized in that: The first input port (1), the COM port (2) and the second input port (3) are in the same direction, and the cables of the three ports are connected to the resonant rod through tap bosses respectively, and the tap bosses and the resonant rod are integrated.