Dual-polarized full-wave oscillator
By using symmetrical oscillators and hollow structures orthogonally arranged on a dielectric plate in a dual-polarization full-wave oscillator, the radiation efficiency and isolation performance are optimized, the problem of high cost caused by large volume in the existing technology is solved, and miniaturized and low-cost signal reception and transmission performance is achieved.
Patent Information
- Application Number
- CN202422860855.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Existing dual-polarization full-wave oscillators require a large volume to maintain a balance among various antenna radiation performance indicators, resulting in high production costs.
A symmetrical oscillator is orthogonally arranged on a dielectric plate. The radiating arms are coupled through a microstrip structure, and gaps and hollow structures are set between the radiating arms. Combined with short-circuit connecting lines and excitation connection structures, the radiation efficiency and isolation performance are optimized.
The device meets the requirements of signal receiving and transmitting performance indicators in a smaller size, has a simple structure, meets industrial production needs, and reduces production costs.
Smart Images
Figure CN223363388U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of antennas, in particular to a dual-polarization full-wave oscillator. Background Art
[0002] Wireless communication technology is constantly evolving, and antenna equipment production must keep pace with the times and maintain cutting-edge technology. While maintaining the signal stability and strength requirements of today, smaller and simpler antennas are more cost-competitive. The antenna element occupies a significant portion of the antenna. Current dual-polarized full-wave antennas are available in metal die-casting, PCB surface mount, and plastic, with PCB surface mount providing the most cost-effective production. The PCB surface mount dual-polarized full-wave antenna structure primarily features orthogonal radiating arms, an open center, and shorted top edges. Maintaining a balanced radiation performance requires considerable space. Utility Model Content
[0003] In order to solve the above problems, the utility model provides a dual-polarization full-wave oscillator.
[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0005] A dual-polarization full-wave dipole, comprising a dipole radiation plate; the dipole radiation plate comprises:
[0006] dielectric board;
[0007] Two symmetrical oscillators are orthogonally arranged on the dielectric plate; each symmetrical oscillator includes two radiating arms arranged diagonally and coupled with each other via a microstrip structure; a gap is provided between adjacent radiating arms;
[0008] Each of the radiation arms is a heart-shaped or quasi-heart-shaped radiation surface.
[0009] As a preferred implementation of the dual-polarization full-wave oscillator provided by the present invention, adjacent radiation arms are connected at one side close to the edge of the dielectric plate via a short-circuit connection line.
[0010] As a preferred embodiment of the dual-polarization full-wave oscillator provided by the present invention, a T-shaped hollow is provided between the short-circuit connecting line and the radiating arm, and the T-shaped hollow includes a strip hollow, an inverted triangular hollow and a rectangular hollow, the inverted triangular hollow is located in the middle of the strip hollow, the rectangular hollow is located on the side of the inverted triangular hollow away from the strip hollow, and the rectangular hollow is connected to the gap.
[0011] As a preferred embodiment of the dual-polarization full-wave oscillator provided by the present invention, the radiation arm is provided with a rectangular protrusion at the strip-shaped hollow portion.
[0012] As a preferred embodiment of the dual-polarization full-wave oscillator provided by the present invention, the two radiating arms of each symmetrical oscillator are respectively a transmitting end radiating arm and a grounding end radiating arm, the transmitting end radiating arm has an excitation connection structure for realizing a welding power feeding function and a welding reinforcement structure for realizing a supporting reinforcement function, and the grounding end radiating arm has a grounding connection structure for realizing grounding.
[0013] As a preferred embodiment of the dual-polarization full-wave oscillator provided by the present invention, the two sides of the transmitting end radiation arm located in the middle of the dielectric plate are set to be triangular hollow.
[0014] As a preferred embodiment of the dual-polarization full-wave oscillator provided by the present invention, the excitation connection structure includes a microstrip extending toward the ground end radiation arm, a feed pad and a feed metallized hole located at the end of the microstrip, and the feed pad is arranged around the feed metallized hole; the welding reinforcement structure includes a reinforced metallized hole and a reinforced pad arranged around the reinforced metallized hole; the grounding connection structure includes a grounding metallized hole and a grounding pad located on the back of the dielectric plate and correspondingly connected to the grounding metallized hole.
[0015] As a preferred implementation of the dual-polarization full-wave oscillator provided by the present invention, the grounding metallized holes are a plurality of metallized small holes arranged near the feeding pad.
[0016] As a preferred embodiment of the dual-polarization full-wave oscillator provided by the present invention, it also includes a coaxial cable; the cable core of the coaxial cable passes through the feed metallized hole and is welded on the feed pad; the copper skin of the coaxial cable is welded on the ground pad.
[0017] As a preferred embodiment of the dual-polarization full-wave oscillator provided by the present invention, it also includes a base support leg, which passes through the reinforced metallized hole and is welded to the reinforced pad.
[0018] As a preferred embodiment of the dual-polarization full-wave oscillator provided by the present invention, the radiation surface is a whole copper-clad surface without hollowing out.
[0019] The utility model has the following beneficial effects:
[0020] The dual-polarization full-wave oscillator provided by the utility model not only meets the requirements of signal transmission and reception performance indicators, but also explores practical requirements such as small size, copper-clad area side length less than 0.7λC, and simple structure, which is in line with the industrial production requirements of antennas. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic structural diagram of the dual-polarization full-wave oscillator of the utility model;
[0022] Figure 2 for Figure 1 Schematic diagram of the decomposition;
[0023] Figure 3 This is a front view of the oscillator radiation plate of the utility model;
[0024] Figure 4 for Figure 3 A magnified schematic diagram of point A in the middle;
[0025] Figure 5 This is a schematic diagram of the back side of the oscillator radiation plate of the utility model;
[0026] Figure 6 These are the test results of the horizontal radiation pattern of the oscillator placed on the reflector in the simulation experiment. The curves in the figure represent the radiation pattern curves at different frequencies. DETAILED DESCRIPTION
[0027] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.
[0028] refer to Figure 1-5 A dual-polarization full-wave oscillator includes an oscillator radiation plate 1 and an oscillator base 2, which are welded in pairs through coaxial cables 3; and then vertically installed on a reflective bottom plate to realize directional signal transmission and reception.
[0029] Specifically, the oscillator radiation plate 1 includes a dielectric plate 110 and two symmetrical oscillators arranged orthogonally on the dielectric plate 110. Each symmetrical oscillator includes two radiating arms 120 arranged diagonally, which are coupled by a microstrip 130 structure. The oscillator is isolated and optimized, and each radiating arm 120 is designed as a heart-shaped or quasi-heart-shaped radiating surface, which not only meets the isolation requirements but also is relatively aesthetically pleasing. The radiating surface is a whole copper-clad surface with a relatively stable structure. The structure adopts a single-sided radiating arm 120 and only a hollowed-out edge design. If the voltage standing wave ratio requirements are met, the hollowed-out radiating arm 120 design may not be adopted. The oscillator radiation plate 1 transmits signals through the copper-clad radiating arm 120, and the oscillator radiation performance can be improved by coupling the radiating arm 120.
[0030] like Figure 3-5As shown, gaps 140 are provided between adjacent radiating arms 120. Adaptive tuning of the spacing between radiating arms 120 from 0.42 mm to 3 mm optimizes the isolation parameters of the dual-polarized oscillator and effectively improves the oscillator's Q factor. Adjacent radiating arms 120 are connected near the edge of the dielectric plate 110 via short-circuit wires 150. The hollowed-out portions and gaps 140 between radiating arms 120 are primarily intended for proper impedance matching and isolation optimization.
[0031] Furthermore, adjacent radiating arms 120 are connected on one side near the edge of the dielectric plate 110 via a short-circuit connection line 150, serving as the short-circuit connection line 150 at the end of the oscillator, and are used to optimize radiation efficiency, isolation, and voltage standing wave ratio (VSWR). A T-shaped hollow 160 is provided between the short-circuit connection line 150 and the radiating arm 120. The T-shaped hollow 160 includes a strip-shaped hollow 161, an inverted triangular hollow 162, and a rectangular hollow 163. The inverted triangular hollow 162 is located in the middle of the strip-shaped hollow 161 and is used to optimize the VSWR and isolate the high-frequency portion. The rectangular hollow 163 is located on the side of the inverted triangular hollow 162 away from the strip-shaped hollow 161. The rectangular hollow 163 is connected to the gap 140 and is used to fine-tune the VSWR of the high-frequency portion. Furthermore, the radiating arm 120 is provided with a rectangular protrusion 170 at the strip-shaped hollow 161, which mainly serves to fine-tune the voltage standing wave ratio of the low-frequency part. The rectangular protrusion 170 may or may not be required according to actual conditions.
[0032] Each symmetrical oscillator has two radiating arms 120, one each consisting of a transmitting radiating arm 121 and a grounding radiating arm 122. The transmitting radiating arm 121 includes an excitation connection structure for welding power feeding and a welding reinforcement structure for support and reinforcement. The grounding radiating arm 122 includes a grounding connection structure for grounding. To optimize oscillator isolation while also impacting the voltage standing wave ratio (VSWR), the gap between the transmitting radiating arms 121 was optimized. Triangular cutouts 1211 were defined on both sides of the central portion of the dielectric plate 110.
[0033] The excitation connection structure includes a microstrip 130 extending toward the ground end radiation arm 122, a feed pad 180 and a feed metallized hole 190 located at the end of the microstrip 130, and the feed pad 180 is arranged around the feed metallized hole 190; the welding reinforcement structure includes a reinforcement metallized hole 210 and a reinforcement pad 220 arranged around the reinforcement metallized hole 210; the grounding connection structure includes a grounding metallized hole 230 and a grounding pad 240 located on the back side of the dielectric plate 110 and correspondingly connected to the grounding metallized hole 230. Preferably, the grounding metallized hole 230 is a plurality of metallized small holes arranged near the feed pad 180, such as 4, 5, 6 small holes, etc.
[0034] Among them, the two radiating arms 120 structure with a -45° angle constitute a symmetrical oscillator, one end of which is a transmitting end radiating arm 121 that realizes the welding feeding function through the extended microstrip 130, the feeding metallized hole 190 and the feeding pad 180, and then welds a supporting foot 21 of the oscillator base 2 through the reinforcement metallized hole 210 and the reinforcement pad 22015 to realize the coupling grounding and fixing of the oscillator; the other end is the grounding end radiating arm 122 structure 2, which is connected to the grounding pad 240 on the back of the dielectric plate 110 through five grounding metallized holes 230. Similarly, the two radiating arms 120 with a +45° angle have a transmitting radiating arm 121 at one end, which passes through the first metallized hole 250, the microstrip 130 extending to the back of the dielectric plate 110, the second metallized hole 260, the microstrip 130 extending to the front of the dielectric plate 110, the feed metallized hole 190, and the feed pad 180 to avoid the -45° angled feeding and soldering feeding. The other end is soldered to the other support leg 21 of the oscillator base 2 through the reinforcement metallized hole 210 and reinforcement pad 220 to achieve coupling grounding and oscillator fixation. The other end is a grounding radiating arm 122 connected to the grounding pad 240 on the back of the dielectric plate 110 through five other metallized holes. The center of the back of the dielectric plate 110 is the +45° excitation path, which is connected end-to-end to the upper structure of the +45° excitation through metallized holes to avoid intersecting the -45° excitation path.
[0035] refer to Figure 5 The copper-clad area on the back of the dipole radiation plate 1 is the reinforced metallized hole 210 corresponding to the +45° dipole base 2 support foot 21, the reinforced metallized hole 210 corresponding to the -45° dipole base 2 support foot 21, the -45° grounding pad 240, the +45° grounding pad 240, and the middle part, that is, the upper +45° transmitting end radiation arm 121 mentioned above extending to the bottommost microstrip 130.
[0036] refer to Figure 1-5 The -45° and +45° grounding pads 240 on the back of the dielectric plate 110 are welded to the cable copper sheath 31; the -45° and +45° reinforced metallized holes 210 corresponding to the support legs 21 of the vibrator base 2 are connected to the topmost support leg 21 reinforced pads 220. By welding the top 211 of the support leg 21 of the vibrator base 2 to the reinforced pads 220 on the front of the dielectric plate 110, tin is also infiltrated into the reinforced metallized holes 210 corresponding to the radiation plate 1 and the support legs 21 of the vibrator base 2, thereby fully fixing the vibrator structure. Going downward, the ring 22 of the vibrator base 2 is sleeved on the cable copper sheath 31, and the connected parts are fixed by welding. At the top, the two feed metallized holes 190 extending from the two transmitting end radiation arms 121 through the welding pieces are each welded to the cable core 32 passing through the feed metallized hole 190 through its corresponding bare copper feed pad 180. In this way, a total of eight welding points are made to achieve good vibrator fixation, ground coupling and feed connection effects.
[0037] The through holes of the two adjacent vibrator bases 2 solder pads serve to fix the dielectric plate 110, connecting the upper patch radiation arm structure and the lower microstrip and ground pad structure; the vibrator excitation is located on the diagonal surface of the vibrator base 2 solder pad, and is achieved using a coaxial cable 3. The cable core 32 is soldered to the starting microstrip 130 of the upper radiation arm structure through the metallized hole, and the cable copper 31 is soldered to the solder pad structure of the lower patch of the dielectric plate; the extended part of the cable copper 31 is soldered to the lower half of the vibrator base 2, and together with the vibrator base 2, it supports the vibrator structure. Figure 6 The horizontal directional pattern test results of the vibrator placed on the reflector in the simulation experiment are shown. It can be seen that the vibrator directional pattern data is normal and the curve is consistent with the full-wave vibrator signal.
[0038] The dual-polarization full-wave oscillator is fixed on the reflector, and then the directional signal is transmitted through the coaxial cable 3. Multiple oscillators can be arranged in an array for transmission.
[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.
[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0041] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0042] Obviously, the embodiments described above are only some of the embodiments of the present application, rather than all of the embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present application specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present application.
Claims
1. A dual-polarization full-wave oscillator, characterized in that: It includes a vibrator radiation plate; the vibrator radiation plate includes: dielectric board; Two symmetrical oscillators are orthogonally arranged on the dielectric plate; each symmetrical oscillator includes two radiating arms arranged diagonally and coupled with each other via a microstrip structure; a gap is provided between adjacent radiating arms; Each of the radiation arms is a heart-shaped or quasi-heart-shaped radiation surface.
2. The dual-polarization full-wave oscillator according to claim 1, characterized in that: Adjacent radiation arms are connected at one side close to the edge of the dielectric plate through a short-circuit connection line.
3. The dual-polarization full-wave oscillator according to claim 2, characterized in that: A T-shaped hollow is provided between the short-circuit connecting line and the radiation arm, and the T-shaped hollow includes a strip hollow, an inverted triangular hollow and a rectangular hollow. The inverted triangular hollow is located in the middle of the strip hollow, and the rectangular hollow is located on the side of the inverted triangular hollow away from the strip hollow. The rectangular hollow is connected to the gap.
4. The dual-polarization full-wave oscillator according to claim 3, characterized in that: The radiation arm is provided with a rectangular convex block at the strip-shaped hollow portion.
5. The dual-polarization full-wave oscillator according to claim 1 or 2, characterized in that: The two radiating arms of each symmetrical oscillator are respectively a transmitting end radiating arm and a grounding end radiating arm. The transmitting end radiating arm has an excitation connection structure for realizing welding power feeding and a welding reinforcement structure for realizing supporting reinforcement. The grounding end radiating arm has a grounding connection structure for realizing grounding.
6. The dual-polarization full-wave oscillator according to claim 5, characterized in that: The two sides of the transmitting end radiation arm located in the middle of the dielectric plate are set to be triangular hollows.
7. The dual-polarization full-wave oscillator according to claim 5, characterized in that: The excitation connection structure includes a microstrip extending toward the ground end radiation arm, a feed pad and a feed metallized hole located at the end of the microstrip, and the feed pad is arranged around the feed metallized hole; the welding reinforcement structure includes a reinforced metallized hole and a reinforced pad arranged around the reinforced metallized hole; the grounding connection structure includes a grounding metallized hole and a grounding pad located on the back of the dielectric plate and correspondingly connected to the grounding metallized hole.
8. The dual-polarization full-wave oscillator according to claim 7, characterized in that: The grounding metallized holes are a plurality of metallized small holes arranged close to the feeding pad.
9. The dual-polarization full-wave oscillator according to claim 7, characterized in that: It also includes a coaxial cable; the cable core of the coaxial cable passes through the feed metallized hole and is welded on the feed pad; the copper skin of the coaxial cable is welded on the ground pad.
10. The dual-polarization full-wave oscillator according to claim 7, characterized in that: It also includes a base supporting foot, which passes through the reinforcement metallized hole and is welded on the reinforcement pad.