High-performance partition plate circular polarizer

Abstract

The utility model relates to the field of electronic information and communication, and discloses a high-performance partition plate circular polarizer, which comprises a partition plate area and grid areas, the grid areas are symmetrically distributed on two sides of the partition plate area, the partition plate area comprises a first rectangular block, a first rectangular cavity and a partition plate, the distance between the front end face and the rear end face of the first rectangular block is 9.78 mm, and the distance between the front end face and the rear end face of the first rectangular block is 9.78 mm. The distance between the left end face and the right end face of the first rectangular block is 21.56 mm, the distance between the upper end face and the lower end face of the first rectangular block is 9.27 mm, and the distance between the front end face and the rear end face of the first rectangular cavity is 1.5 mm. According to the utility model, the innovative partition plate different from the existing partition plate is adopted, the gaps in the partition plate can be more beneficial to impedance matching, and the newly added grid structure has obvious gain for the circular polarizer, so that the problems of narrower working bandwidth, low gain and poorer impedance matching performance of the circular polarizer are solved, and the product performance is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic information and communication, and in particular to a high-performance partition circular polarizer. Background Technology

[0002] With the development of communication technologies such as 5G and 6G, and the accelerated deployment of low-Earth orbit satellite internet, the demand for high-performance circularly polarized antennas is constantly increasing. As a key component, the septum-type circularly polarized antenna will also benefit from this trend. Septum-type circularly polarized antennas have wide applications in satellite communication, radar detection, and wireless positioning. For example, in satellite communication, they help improve the transmission quality and coverage of satellite signals.

[0003] In the current market, ordinary circular polarizers typically face several technical challenges, including their relatively narrow operating bandwidth, which limits their application over a wider frequency range. In addition, these circular polarizers often have low gain levels, meaning their signal transmission and reception capabilities are not particularly strong. Furthermore, their impedance matching performance is often unsatisfactory, which can lead to signal reflection and reduced transmission efficiency. Therefore, these limiting factors restrict the application of ordinary circular polarizers in certain high-performance communication systems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high-performance partitioned circular polarizer, which aims to improve the problems of narrow operating bandwidth, low gain and poor impedance matching performance of existing circular polarizers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-performance septum circular polarizer, comprising a septum region and a grid region, wherein the grid region is symmetrically distributed on both sides of the septum region, the septum region comprising a first rectangular block, a first rectangular cavity, and a septum, wherein the distance between the front end face and the rear end face of the first rectangular block is 9.78 mm, the distance between the left end face and the right end face of the first rectangular block is 21.56 mm, the distance between the upper end face and the lower end face of the first rectangular block is 9.27 mm, the distance between the front end face and the rear end face of the first rectangular cavity is 1.5 mm, and the distance between the left end face of the first rectangular cavity and the rear end face of the first rectangular block is... The distance between the left end faces is 0.35mm. The distance between the front end face of the first rectangular cavity and the front end face of the first rectangular block is 4.14mm. The distance between the rear end face of the first rectangular cavity and the rear end face of the first rectangular block is equal to the distance between the front end face of the first rectangular cavity and the front end face of the first rectangular block. The upper end face of the first rectangular cavity and the upper end face of the first rectangular block are integrally formed and connected and are in a fitted state. The lower end face of the first rectangular cavity and the lower end face of the first rectangular block are integrally formed and connected and are in a fitted state. The right end face of the first rectangular cavity and the right end face of the first rectangular block are integrally formed and connected and are in a fitted state.

[0006] Furthermore, the partition includes a second rectangular block, a third rectangular block, a fourth rectangular block, a fifth rectangular block, a sixth rectangular block, and a seventh rectangular block, wherein the second rectangular block is stacked on top of the third rectangular block, the third rectangular block is stacked on top of the fourth rectangular block, the fourth rectangular block is stacked on top of the fifth rectangular block, the fifth rectangular block is stacked on top of the sixth rectangular block, and the sixth rectangular block is stacked on top of the seventh rectangular block.

[0007] Furthermore, the front end faces of the second, third, fourth, fifth, sixth, and seventh rectangular blocks are integrally formed and fitted with the front end face of the first rectangular cavity, the rear end faces are integrally formed and fitted with the rear end face of the first rectangular cavity, and the left end faces are all on the same plane and integrally formed and fitted with the right end face of the first rectangular cavity.

[0008] Further, the second rectangular block has a height of 1.33mm and a width of 3.13mm; the third rectangular block has a height of 1.01mm and a width of 5.72mm; the fourth rectangular block has a height of 0.34mm and a width of 7.885mm; the fifth rectangular block has a height of 0.63mm and a width of 6.82mm; the sixth rectangular block has a height of 1.63mm and a width of 10.2mm; and the seventh rectangular block has a height of 3.49mm and a width of 12.17mm.

[0009] Furthermore, the distance between the upper end face of the second rectangular block and the upper end face of the first rectangular cavity is 0.42 mm, and the distance between the lower end face of the seventh rectangular block and the lower end face of the first rectangular cavity is equal to this distance.

[0010] Furthermore, the grid area includes two grids, which are symmetrical about the center line of the first rectangular block. Each grid includes a first rectangular strip, a second rectangular strip, a third rectangular strip, and a fourth rectangular strip.

[0011] Furthermore, the upper and lower ends of the first, second, third, and fourth rectangular strips are flush with the upper and lower ends of the first rectangular block, respectively, and the rear end face is integrally formed and fits the front end face of the first rectangular block. The width and front-to-back length of each strip are 1mm.

[0012] Furthermore, the distance between the left end face of the first rectangular strip and the left end face of the first rectangular block is 1.53 mm, the lateral spacing between each rectangular strip is 1 mm, and the distance between the right end face of the fourth rectangular strip and the right end face of the first rectangular block is 13.03 mm.

[0013] This utility model has the following beneficial effects:

[0014] In this invention, the circular polarizer adopts an innovative separator that is different from the existing separator. The gap in the separator is more conducive to impedance matching, and the newly added grid structure significantly improves the gain of the circular polarizer. This solves the problems of narrow operating bandwidth, low gain, and poor impedance matching performance of the circular polarizer, and greatly improves the product performance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a high-performance partition circular polarizer proposed in this utility model;

[0016] Figure 2 This is a top view of a high-performance diaphragm circular polarizer proposed in this utility model;

[0017] Figure 3 This is a cross-sectional view of a high-performance partition circular polarizer proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the grid region structure of a high-performance partitioned circular polarizer proposed in this utility model.

[0019] Legend:

[0020] 1. Partition area; 2. Grid area; 211. First rectangular strip; 212. Second rectangular strip; 213. Third rectangular strip; 214. Fourth rectangular strip; 3. First rectangular block; 4. First rectangular cavity; 5. Partition; 51. Second rectangular block; 52. Third rectangular block; 53. Fourth rectangular block; 54. Fifth rectangular block; 55. Sixth rectangular block; 56. Seventh rectangular block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1-4This utility model provides an embodiment of a high-performance septum circular polarizer, comprising a septum region 1 and a grid region 2. The grid region 2 is symmetrically distributed on both sides of the septum region 1. The septum region 1 includes a first rectangular block 3, a first rectangular cavity 4, and a septum 5. The distance between the front end face and the rear end face of the first rectangular block 3 is 9.78 mm, the distance between the left end face and the right end face of the first rectangular block 3 is 21.56 mm, and the distance between the upper end face and the lower end face of the first rectangular block 3 is 9.27 mm. The distance between the front end face and the rear end face of the first rectangular cavity 4 is 1.5 mm, and the distance between the left end face of the first rectangular cavity 4 and the left end face of the first rectangular block 3 is 0.35 mm. The distance between the front end face of the first rectangular cavity 4 and the front end face of the first rectangular block 3 is 4.14 mm. The distance between the rear end face of the first rectangular cavity 4 and the rear end face of the first rectangular block 3 is equal to the distance between the front end face of the first rectangular cavity 4 and the front end face of the first rectangular block 3. The upper end face of the first rectangular cavity 4 and the upper end face of the first rectangular block 3 are integrally formed and connected, and are in a fitted state. The lower end face of the first rectangular cavity 4 and the lower end face of the first rectangular block 3 are integrally formed and connected, and are in a fitted state. The right end face of the first rectangular cavity 4 and the right end face of the first rectangular block 3 are integrally formed and connected, and are in a fitted state. The partition 5 includes a second rectangular block 51, a third rectangular block 52, and a fourth rectangular block 53. The first rectangular block 53, the fifth rectangular block 54, the sixth rectangular block 55, and the seventh rectangular block 56 are formed as follows: the second rectangular block 51 is stacked on top of the third rectangular block 52; the third rectangular block 52 is stacked on top of the fourth rectangular block 53; the fourth rectangular block 53 is stacked on top of the fifth rectangular block 54; the fifth rectangular block 54 is stacked on top of the sixth rectangular block 55; and the sixth rectangular block 55 is stacked on top of the seventh rectangular block 56. The front ends of the second rectangular block 51, the third rectangular block 52, the fourth rectangular block 53, the fifth rectangular block 54, the sixth rectangular block 55, and the seventh rectangular block 56 are integrally formed and fitted with the front ends of the first rectangular cavity 4, and their rear ends are integrally formed and fitted with the rear ends of the first rectangular cavity 4. The left ends are all... The following rectangular blocks are integrally formed and fitted to the right end face of the first rectangular cavity 4, and are located on the same plane. The height of the second rectangular block 51 is 1.33 mm and the width is 3.13 mm; the height of the third rectangular block 52 is 1.01 mm and the width is 5.72 mm; the height of the fourth rectangular block 53 is 0.34 mm and the width is 7.885 mm; the height of the fifth rectangular block 54 is 0.63 mm and the width is 6.82 mm; the height of the sixth rectangular block 55 is 1.63 mm and the width is 10.2 mm; and the height of the seventh rectangular block 56 is 3.49 mm and the width is 12.17 mm. The distance between the upper end face of the second rectangular block 51 and the upper end face of the first rectangular cavity 4 is 0 mm.The distance between the lower end face of the seventh rectangular block 56 and the lower end face of the first rectangular cavity 4 is equal to 42mm. The grid area 2 includes two grids 21, which are symmetrical about the center line of the first rectangular block 3. Each grid 21 includes a first rectangular strip 211, a second rectangular strip 212, a third rectangular strip 213, and a fourth rectangular strip 214. The upper and lower end faces of the first rectangular strip 211, the second rectangular strip 212, the third rectangular strip 213, and the fourth rectangular strip 214 are flush with the upper and lower end faces of the first rectangular block 3, respectively. The rear end face is integrally formed and fits the front end face of the first rectangular block 3. The width and front-to-back length are both 1mm. The distance between the left end face of the first rectangular strip 211 and the left end face of the first rectangular block 3 is 1.53mm. The lateral spacing between the rectangular strips is 1mm. The distance between the right end face of the fourth rectangular strip 214 and the right end face of the first rectangular block 3 is 13.03mm.

[0023] Specifically, when a linearly polarized wave is incident on a specific device, it first passes through a grid region 2 symmetrically distributed on both sides of the partition region 1. This grid region 2 consists of four rectangular bars of equal width and length, forming a periodic array structure. The function of these rectangular bars is to scatter and reflect the electric field components of the incident wave in different polarization directions, thereby initially filtering out specific polarization components and equalizing the amplitude of these components. After this initial processing, the electromagnetic wave then enters the partition region 1. Within the partition region 1, the first rectangular block 3 and the internal rectangular cavity are arranged in a carefully designed spatial layout to adjust the transmission impedance. To meet the needs of subsequent processing, the multi-size partition 5, composed of the second to seventh rectangular blocks, applies differentiated phase delays to the different polarization components of the electromagnetic wave due to the different thicknesses and widths of each layer. When the phase difference between the components perpendicular to and parallel to the layering direction accumulates to 90 degrees, and the amplitudes of these components become equal after secondary modulation by the grid region 2, the original linearly polarized wave is successfully converted into a circularly polarized wave. In this process, the multi-size partition 5 and the symmetrical structure of the grid region 2 work together to achieve impedance matching and efficient polarization conversion functions in a wide frequency band.

[0024] Working principle: When a linearly polarized wave is incident, it first passes through the grid region 2, which is symmetrically distributed on both sides of the partition region 1. The grid region 2 consists of a periodic array structure composed of four rectangular bars of equal width and length. This structure scatters and reflects the electric field components in different polarization directions, initially screening the polarization components and equalizing their amplitudes. Subsequently, the electromagnetic wave enters the partition region 1. The first rectangular block 3 and the internal rectangular cavity adjust the transmission impedance through spatial arrangement. The multi-size partition 5, which is composed of the second to seventh rectangular blocks, produces different phase delays for the different polarization components of the electromagnetic wave due to the different thicknesses and widths of each layer. When the phase difference between the components perpendicular to and parallel to the layer direction accumulates to 90° and the amplitudes are equal after secondary adjustment by the grid, the linearly polarized wave is converted into a circularly polarized wave. The symmetrical structure of the multi-size partition 1 and the grid works together to achieve impedance matching and efficient polarization conversion within a wide bandwidth.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-performance septum circular polarizer, comprising a septum region (1) and a grid region (2), characterized in that: The grid area (2) is symmetrically distributed on both sides of the partition area (1). The partition area (1) includes a first rectangular block (3), a first rectangular cavity (4), and a partition (5). The distance between the front end face and the rear end face of the first rectangular block (3) is 9.78 mm. The distance between the left end face and the right end face of the first rectangular block (3) is 21.56 mm. The distance between the upper end face and the lower end face of the first rectangular block (3) is 9.27 mm. The distance between the front end face and the rear end face of the first rectangular cavity (4) is 1.5 mm. The distance between the left end face of the first rectangular cavity (4) and the left end face of the first rectangular block (3) is 0.35 mm. The distance between the front end face of the cavity (4) and the front end face of the first rectangular block (3) is 4.14 mm. The distance between the rear end face of the first rectangular cavity (4) and the rear end face of the first rectangular block (3) is equal to the distance between the front end face of the first rectangular cavity (4) and the front end face of the first rectangular block (3). The upper end face of the first rectangular cavity (4) and the upper end face of the first rectangular block (3) are integrally formed and connected and are in a close fit. The lower end face of the first rectangular cavity (4) and the lower end face of the first rectangular block (3) are integrally formed and connected and are in a close fit. The right end face of the first rectangular cavity (4) and the right end face of the first rectangular block (3) are integrally formed and connected and are in a close fit.

2. The high-performance diaphragm circular polarizer according to claim 1, characterized in that: The partition (5) includes a second rectangular block (51), a third rectangular block (52), a fourth rectangular block (53), a fifth rectangular block (54), a sixth rectangular block (55), and a seventh rectangular block (56). The second rectangular block (51) is stacked on top of the third rectangular block (52), the third rectangular block (52) is stacked on top of the fourth rectangular block (53), the fourth rectangular block (53) is stacked on top of the fifth rectangular block (54), the fifth rectangular block (54) is stacked on top of the sixth rectangular block (55), and the sixth rectangular block (55) is stacked on top of the seventh rectangular block (56).

3. The high-performance diaphragm circular polarizer according to claim 2, characterized in that: The front end faces of the second rectangular block (51), the third rectangular block (52), the fourth rectangular block (53), the fifth rectangular block (54), the sixth rectangular block (55), and the seventh rectangular block (56) are integrally formed and fitted with the front end face of the first rectangular cavity (4), and the rear end face is integrally formed and fitted with the rear end face of the first rectangular cavity (4). The left end faces are all on the same plane and integrally formed and fitted with the right end face of the first rectangular cavity (4).

4. A high-performance diaphragm circular polarizer according to claim 2, characterized in that: The second rectangular block (51) has a height of 1.33 mm and a width of 3.13 mm; the third rectangular block (52) has a height of 1.01 mm and a width of 5.72 mm; the fourth rectangular block (53) has a height of 0.34 mm and a width of 7.885 mm; the fifth rectangular block (54) has a height of 0.63 mm and a width of 6.82 mm; the sixth rectangular block (55) has a height of 1.63 mm and a width of 10.2 mm; and the seventh rectangular block (56) has a height of 3.49 mm and a width of 12.17 mm.

5. A high-performance diaphragm circular polarizer according to claim 2, characterized in that: The distance between the upper end face of the second rectangular block (51) and the upper end face of the first rectangular cavity (4) is 0.42 mm, and the distance between the lower end face of the seventh rectangular block (56) and the lower end face of the first rectangular cavity (4) is equal to this distance.

6. The high-performance diaphragm circular polarizer according to claim 1, characterized in that: The grid area (2) includes two grids (21), which are symmetrical about the center line of the first rectangular block (3). Each grid (21) includes a first rectangular strip (211), a second rectangular strip (212), a third rectangular strip (213), and a fourth rectangular strip (214).

7. A high-performance diaphragm circular polarizer according to claim 6, characterized in that: The upper and lower ends of the first rectangular strip (211), the second rectangular strip (212), the third rectangular strip (213) and the fourth rectangular strip (214) are flush with the upper and lower ends of the first rectangular block (3), respectively. The rear end is integrally formed and fits the front end of the first rectangular block (3). The width and front and rear length are both 1mm.

8. A high-performance diaphragm circular polarizer according to claim 7, characterized in that: The distance between the left end face of the first rectangular strip (211) and the left end face of the first rectangular block (3) is 1.53mm, the horizontal spacing between each rectangular strip is 1mm, and the distance between the right end face of the fourth rectangular strip (214) and the right end face of the first rectangular block (3) is 13.03mm.

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