A radome based on phase control and transmission technology

Abstract

The present invention discloses a radome based on phase control and transmission technology, wherein the radome left-handed circularly polarized wave path coupling module and the radome right-handed circularly polarized wave path coupling module are staggered, the radome left-handed circularly polarized wave path coupling module and the radome right-handed circularly polarized wave path coupling module are both centrally symmetrically distributed, and the radome left-handed circularly polarized wave path coupling module and the radome right-handed circularly polarized wave path coupling module are fixedly connected to each other using a um-level coating process. In addition to having a basic physical protection function for the antenna, the present invention can also realize electromagnetic induced transparency technology through destructive interference of two energy states, thereby causing the signal to produce a slow light effect. At the same time, the present invention can realize adjustable circular-linear polarization conversion and realize controllable electromagnetic stealth in a fixed band, thereby achieving low loss and functional diversity of the radome.

Description

Technical Field

[0001] The present invention relates to a radome based on phase control and transmission technology, and belongs to the technical fields of microwave device technology, radio frequency system front-end technology, circularly polarized antenna, etc. Background Art

[0002] Because external antennas, such as base station antennas, are exposed to the elements year-round and susceptible to damage, and because signals experience significant atmospheric attenuation, they generally require radome protection. Radomes can provide a degree of protection against damage in harsh environments. For example, radomes for large ground-based antennas reduce wind resistance and prevent the accumulation of ice and snow, often taking the form of spherical shells. However, for airborne and missile-borne platforms, conical radomes are essential to minimize air resistance. While radomes protect the antenna, they often have adverse effects. For example, electromagnetic waves emitted by the antenna are reflected on the radome's surface and absorbed within the dielectric layer, resulting in power loss and reducing the range of the electronic system. Refraction of electromagnetic waves in the dielectric layer can cause angular measurement errors. Multiple reflections of electromagnetic waves in the dielectric layer, similar to the multipath effect, can increase nearby clutter.

[0003] At the same time, the rapid development of modern wireless communication technologies, satellite communications and navigation, radar systems, and military electronic countermeasures equipment has placed higher demands on radomes for features such as miniaturization, integration, polarization insensitivity, and low loss. Currently, commercially available radomes typically operate at high frequencies, as the large dimensions of metal antennas at low frequencies make them unsuitable for system miniaturization. While some radomes offer numerous advantages, such as light weight, low cost, and ease of integration, they are not immune to these technical bottlenecks. Consequently, the limited functionality and significant impact on antenna performance of traditional radomes have limited their development. Summary of the Invention

[0004] In response to the problems in the existing technology that antenna covers are limited in development, have single functions, and have certain negative impacts on antenna operation, and their performance needs to be further improved, the present invention proposes a antenna cover based on phase control and transmission technology, which can simultaneously achieve slow-wave effect and polarization operation, and utilize the phase change characteristics of vanadium dioxide to adjust its system performance. It has the advantages of subwavelength, low loss, multi-function and adjustability in the terahertz band.

[0005] To achieve the above-mentioned objectives, the present invention provides a radome based on phase control and transmission technology, comprising a plurality of radome left-hand circularly polarized wave path coupling modules and a plurality of radome right-hand circularly polarized wave path coupling modules, the radome left-hand circularly polarized wave path coupling modules and the radome right-hand circularly polarized wave path coupling modules being staggered, the radome left-hand circularly polarized wave path coupling modules and the radome right-hand circularly polarized wave path coupling modules being centrally symmetrically distributed, and the radome left-hand circularly polarized wave path coupling modules and the radome right-hand circularly polarized wave path coupling modules being fixedly connected to each other using a um-level coating process.

[0006] Preferably, the antenna cover left-hand circularly polarized wave path coupling module includes a polarized radiation patch, a substrate, a metal plane plate (5), a metal column and a metal ring, the polarized radiation patch is fixedly connected to the substrate, the substrate is fixedly connected to the metal plane plate (5), the upper end of the polarized radiation patch is fixedly connected to the lower end of the metal column, the middle end of the metal column passes through the substrate and the metal plane plate (5), and the upper end of the metal column is fixedly connected to the metal ring.

[0007] Preferably, the number of the radome left-hand circularly polarized wave path coupling modules and the number of the radome right-hand circularly polarized wave path coupling modules are both two.

[0008] Preferably, the structures of the radome left-hand circularly polarized wave path coupling module and the radome right-hand circularly polarized wave path coupling module are the same.

[0009] Preferably, an opening is provided on the corner of the polarized radiation patch of the left-hand circularly polarized wave path coupling module of the radome and the corner of the polarized radiation patch of the right-hand circularly polarized wave path coupling module of the radome;

[0010] The rotation angle of the polarized radiation patch opening of the left-hand circularly polarized wave path coupling module of the radome differs by 90 degrees from that of the polarized radiation patch opening of the right-hand circularly polarized wave path coupling module of the radome.

[0011] Preferably, the substrate in the radome left-handed circularly polarized wave path coupling module and the substrate in the radome right-handed circularly polarized wave path coupling module are integrally formed;

[0012] The metal plane plate (5) in the radome left-hand circularly polarized wave path coupling module and the metal plane plate (5) in the radome right-hand circularly polarized wave path coupling module are integrally formed.

[0013] Preferably, the metal ring comprises a first metal ring (1), a second circular ring (2) and a third metal ring (3); the first metal ring (1), the second circular ring (2) and the third metal ring (3) are all circular in shape; and the first metal ring (1), the second circular ring (2) and the third metal ring (3) are distributed in concentric circles;

[0014] The polarized radiation patch includes a first polarized radiation patch (7) and a second polarized radiation patch (8); the substrate includes a first substrate (4) and a second substrate (6); a first through hole (11) is provided on the first substrate (4); and a third through hole (13) is provided on the second substrate (6).

[0015] The metal pillars include a first metal pillar (9) and a second metal pillar (10), and two second through holes (12) are provided on the metal plane plate (5).

[0016] The middle ends of the first metal column (9) and the second metal column (10) pass through the second substrate (6), the metal plane plate (5) and the first substrate (4) in sequence from bottom to top;

[0017] The upper end of the first polarized radiation patch (7) is fixedly connected to the lower end of the first metal column (9), and the upper end of the second polarized radiation patch (8) is fixedly connected to the lower end of the second metal column (10);

[0018] The upper end of the first metal column (9) is fixedly connected to the center of the inner radius of the third metal ring (3) and the center of the outer radius of the third metal ring (3), and the upper end of the second metal column (10) is fixedly connected to the center of the inner radius of the first metal ring (1) and the center of the outer radius of the first metal ring (1).

[0019] Preferably, the first metal ring (1) and the third metal ring (3) are made of metal, and the second ring (2) is made of vanadium dioxide;

[0020] The first polarized radiation patch (7) and the second polarized radiation patch (8) are made of gold;

[0021] The first substrate (4) and the second substrate (6) are made of silicon;

[0022] The metal plane plate (5), the first metal column (9) and the second metal column (10) are made of gold.

[0023] Prioritizing, the polarization is adjusted to linear-circular polarization conversion. When a left-hand circularly polarized wave or a right-hand circularly polarized wave is incident, the polarized radiation patch receives the left-hand circularly polarized wave or the right-hand circularly polarized wave with the same phase and amplitude, and obtains a synthesized linearly polarized wave between 0.9 THz and 1.2 THz, with a relative bandwidth of 29%; at 1.08 THz, the maximum group index is 1934, and the maximum group delay is 488 ps.

[0024] Preferably, the relative dielectric constant of the substrate is set to 4 and the thickness is set to 37 μm;

[0025] The inner radius and outer radius of the second ring (2) can be designed to be 25.3 μm and 38.0 μm respectively;

[0026] The thickness of the first metal ring (1) and the third metal ring (3) is set to 0.5 μm;

[0027] When the vanadium dioxide ring is in an insulating state, the relative dielectric constant is 12 and the conductivity is 200S / m;

[0028] When the vanadium dioxide ring is in the metallic state, the corresponding conductivity is 3× 10 5 S / m.

[0029] The beneficial effects achieved by the present invention are:

[0030] (1) The present invention provides a radome based on phase control and transmission technology, which breaks through the traditional design ideas of electromagnetic induced transparency and linear circular polarization conversion. It adopts multiple resonators and vanadium dioxide materials, has more flexible size selection, higher absorption rate, lower loss, and is easy to integrate into other systems.

[0031] (2) The present invention uses two resonant layers, which have good slow-wave effects and polarization conversion functions. In addition, vanadium dioxide is used to achieve electromagnetically induced transparency to electromagnetically induced absorption technology. The temperature is actively controlled to completely absorb or transmit electromagnetic waves in a specific frequency band. At high temperatures, electromagnetic waves are completely absorbed between 0.824 THz and 1.233 THz. At low temperatures, electromagnetic waves are completely transmitted between 0.97 THz and 1.16 THz. At 1.06 THz, the maximum absorption can reach 90.3%.

[0032] (3) The present invention achieves high transmission, low loss, and highly adjustable linear-circular polarization conversion through coupling between resonators, thereby actively regulating the phase of signal transmission. Simultaneously, with the slow-wave effect, the invention has the advantages of novel design, simple structure, and wide application range.

[0033] (4) The electromagnetically induced transparency technology used in the present invention can generate a transmission window, which can be used as a signal filter to filter out signals in useless frequency bands, thereby achieving electromagnetic protection and modulating signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a structural diagram of the antenna cover in Example 1 of the present invention;

[0035] Figure 2 This is a schematic diagram of the arrangement of the left-hand circularly polarized wave path coupling modules of the radome according to the first embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the arrangement of the right-handed circularly polarized wave path coupling modules of the radome according to the first embodiment of the present invention;

[0037] Figure 4Schematic diagram of a linearly polarized wave synthesized after a left-handed circularly polarized wave and a right-handed circularly polarized wave are incident on a radome according to the first embodiment of the present invention;

[0038] Figure 5 Schematic diagram of electromagnetically induced transparency phenomenon caused by left-handed polarized wave and right-handed polarized wave incident on the radome of embodiment 1 of the present invention at low temperature;

[0039] Figure 6 Schematic diagram of electromagnetic induced absorption phenomenon caused by left-handed polarized waves and right-handed polarized waves incident on the radome of the first embodiment of the present invention at high temperature;

[0040] Figure 7 Schematic diagram of the maximum group index and group delay of the radome according to the first embodiment of the present invention at 1.08 THz;

[0041] Figure 8 Schematic diagram of the arrangement of the first polarized radiation patch, the second polarized radiation patch, the third polarized radiation patch, and the fourth polarized radiation patch in the first embodiment of the present invention;

[0042] Figure 9 Schematic diagram of the arrangement of the first polarized radiation patch, the second polarized radiation patch, the third polarized radiation patch, and the fourth polarized radiation patch of the second embodiment of the present invention;

[0043] Figure 10 Schematic diagram of the arrangement of the first polarized radiation patch, the second polarized radiation patch, the third polarized radiation patch, and the fourth polarized radiation patch of the third embodiment of the present invention;

[0044] Figure 11 Schematic diagram of the arrangement of the first polarized radiation patch, the second polarized radiation patch, the third polarized radiation patch and the fourth polarized radiation patch in the fourth embodiment of the present invention.

[0045] The meaning of the figure marks is: 1-first metal ring; 2-second circular ring; 3-third metal ring; 4-first substrate; 5-metal plane plate; 6-second substrate; 7-first polarized radiation patch; 8-second polarized radiation patch; 9-first metal column; 10-second metal column; 11-first through hole; 12-second through hole; 13-third through hole; 14-third polarized radiation patch; 15-fourth polarized radiation patch. DETAILED DESCRIPTION

[0046] The following examples are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0047] It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention, they are only used to explain the relative position relationship and movement status of the various components under a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, if the descriptions of "first" and "second" are involved in the present invention, they are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0049] Example 1

[0050] A radome based on phase control and transmission technology is characterized in that it includes a plurality of radome left-hand circularly polarized wave path coupling modules and a plurality of radome right-hand circularly polarized wave path coupling modules, the radome left-hand circularly polarized wave path coupling modules and the radome right-hand circularly polarized wave path coupling modules are staggered, the radome left-hand circularly polarized wave path coupling modules and the radome right-hand circularly polarized wave path coupling modules are both centrally symmetrically distributed, and the radome left-hand circularly polarized wave path coupling modules and the radome right-hand circularly polarized wave path coupling modules are fixedly connected to each other using a um-level coating process. The um-level coating process is a new technology that uses different materials to form a new surface on the surface of a substrate. There are many coating methods, such as vacuum evaporation, vacuum sputtering, chemical reduction, sol-gel method, etc. The present invention uses a chemical reduction method.

[0051] The radome proposed in this invention consists of two types of path coupling modules; each consists of two metal rings and two polarized radiation patches. The two metal rings are positioned on a first substrate 4, while the two polarized radiation patches are positioned on a lossless second substrate 6, vertically connected by two through-holes. A perforated metal plate 5 is placed between the two substrates to better conduct electromagnetic wave energy to the polarized radiation patches via the first and second metal pillars 9 and 10. The two types of path coupling modules (the radome left-handed circularly polarized wave path coupling module and the radome right-handed circularly polarized wave path coupling module) are identical in size, and the rotational orientation of the two polarized radiation patches differs by 90°. The two path coupling modules are arranged in a 2×2 configuration.

[0052] Furthermore, the radome can realize electromagnetic induced transparency technology through destructive interference of two energy states, thereby causing the signal to produce a slow light effect.

[0053] Furthermore, the radome can achieve adjustable circular-linear polarization conversion, thereby actively regulating the phase of signal transmission.

[0054] Furthermore, the electromagnetically induced transparency technology applied in the radome can generate a transmission window, which can be used as a signal filter to filter out signals in useless frequency bands, thereby achieving electromagnetic protection and modulating signals.

[0055] Furthermore, the radome uses electromagnetically induced transparency to electromagnetically induced absorption technology to actively control the radome using temperature, thereby choosing to completely absorb or transmit electromagnetic waves in a specific frequency band, that is, to achieve controllable electromagnetic stealth in a fixed band, thereby realizing the functional diversity of the radome.

[0056] Furthermore, the slow light effect is generated at low temperatures, between 0.97 THz and 1.16 THz, and the slow light effect can also achieve complete transmission of electromagnetic waves.

[0057] Furthermore, the electromagnetically induced transparency-to-electromagnetic induced absorption technology uses active temperature control to completely absorb or transmit electromagnetic waves in specific frequency bands. At high temperatures, complete electromagnetic wave absorption is achieved between 0.824 THz and 1.233 THz, while at low temperatures, complete electromagnetic wave transmission is achieved between 0.97 THz and 1.16 THz. At 1.06 THz, maximum absorption reaches 90.3%.

[0058] Furthermore, the four metal polarized radiation patches of the antenna cover, namely the first polarized radiation patch 7, the second polarized radiation patch 8, the third polarized radiation patch 14, the fourth polarized radiation patch 15 and the metal plane plate 5, are all made of gold; the conductivity and thickness of the metal material gold are 4.1×10 7 S / m and 0.1 μm;

[0059] Furthermore, the polarization is adjusted to linear-circular polarization conversion. When a left-hand circularly polarized wave or a right-hand circularly polarized wave is incident, the polarized radiation patch receives the left-hand circularly polarized wave or the right-hand circularly polarized wave with the same phase and amplitude, and obtains a synthesized linearly polarized wave between 0.9 THz and 1.2 THz, with a relative bandwidth of 29%; at 1.08 THz, the maximum group index is 1934, and the maximum group delay is 488 ps.

[0060] Furthermore, the relative dielectric constant of the substrate was set to 4 and the thickness was set to 37 μm;

[0061] The inner radius and outer radius of the second ring can be designed to be 25.3 μm and 38.0 μm, respectively;

[0062] The thickness of the first metal ring (1) and the third metal ring (3) is set to 0.5 μm;

[0063] When the vanadium dioxide ring is in an insulating state, the relative dielectric constant is 12 and the conductivity is 200S / m;

[0064] When the vanadium dioxide ring is in the metallic state, the corresponding conductivity is 3× 10 5 S / m. .

[0065] like Figure 8 As shown, the opening of the polarized radiation patch of the left-hand circularly polarized wave path coupling module of the radome in this embodiment faces the upper left corner, and the opening of the polarized radiation patch of the right-hand circularly polarized wave path coupling module of the radome faces the lower left corner.

[0066] This product can realize adjustable circular-linear polarization conversion, thereby actively regulating the phase of signal transmission. Figure 4 As shown in the figure, this product can achieve phase control by converting linear polarization into circular polarization. When a left-handed circularly polarized wave or a right-handed circularly polarized wave is incident, the received electromagnetic wave is radiated by the radiating plate to a left-handed circularly polarized wave or a right-handed circularly polarized wave with the same phase and amplitude, resulting in a synthesized linearly polarized wave between 0.9 THz and 1.2 THz. The relative bandwidth reaches 29%.

[0067] like Figure 5 As shown, this product achieves electromagnetically induced transparency (EMI) through destructive interference between two energy states, creating a slow-light effect on the signal. Furthermore, this EMI technology creates a transmission window that acts as a signal filter, filtering out signals in the unwanted frequency band, thereby providing electromagnetic protection and signal modulation. Furthermore, the slow-light effect occurs at low temperatures, between 0.97 THz and 1.16 THz. This slow-light effect also enables complete transmission of electromagnetic waves.

[0068] This product uses the phase change characteristics of vanadium dioxide materials to achieve electromagnetically induced transparency to electromagnetically induced transparent absorption technology, and uses active temperature control to completely absorb or transmit electromagnetic waves in a specific frequency band. Figure 5 、 6 As can be seen, this product can completely absorb incident electromagnetic waves at high temperatures, between 0.824 THz and 1.233 THz, and can completely transmit incident electromagnetic waves at low temperatures, between 0.97 THz and 1.16 THz. At 1.06 THz, the maximum absorption reaches 90.3%.

[0069] Figure 7 This is a schematic diagram of the maximum group index and group delay at 1.08 THz of the present invention. As can be seen from the figure, at 1.08 THz, the maximum group index and group delay are 1934 and 488 ps.

[0070] The relative dielectric constant and thickness of the silicon substrate used in the present invention are set to 4 and 37 μm respectively;

[0071] The inner radius and outer radius of the second circular ring made of vanadium dioxide used in the present invention are designed to be 25.3 μm and 38.0 μm respectively. The thickness of the first metal ring and the second metal ring is set to 0.5 μm.

[0072] When the vanadium dioxide ring used in the present invention is in a low-temperature (insulator) state, the relative dielectric constant and conductivity are 12 and 200 S / m respectively. When the vanadium dioxide ring is in a high-temperature (metal) state, the corresponding conductivity is 3× 10 5 S / m.

[0073] After a specific design, the antenna cover of the present invention, in addition to its basic physical protection function, can also realize electromagnetic induced transparency technology through destructive interference between two energy states, thereby causing the signal to produce a slow light effect. At the same time, the present invention can also realize adjustable circular linear polarization conversion and controllable electromagnetic stealth in a fixed band, thereby achieving low loss and functional diversity of the antenna cover. At the same time, the electromagnetic induced transparency technology used in the present invention has a transmission window that can filter out signals in other frequency bands, achieve electromagnetic protection, and modulate the signal. In addition, the present invention not only has an anti-interference effect, but can also be used as a signal filter. In summary, the present invention has the characteristics of thin thickness, low loss, and functional diversity.

[0074] The present invention can simultaneously realize slow-wave effect and polarization operation, and utilizes the phase change characteristics of vanadium dioxide to adjust the system performance. It has the advantages of subwavelength, low loss, multi-function and adjustability in the terahertz band.

[0075] Example 2

[0076] like Figure 9 As shown, different from Example 1, the opening of the polarized radiation patch of the left-hand circularly polarized wave path coupling module of the antenna cover in this embodiment is toward the lower left corner, and the opening of the polarized radiation patch of the right-hand circularly polarized wave path coupling module of the antenna cover is toward the upper left corner.

[0077] Example 3

[0078] like Figure 10As shown, different from Example 1, the opening of the polarized radiation patch of the left-hand circularly polarized wave path coupling module of the antenna cover in this embodiment is toward the lower left corner, and the opening of the polarized radiation patch of the right-hand circularly polarized wave path coupling module of the antenna cover is toward the lower right corner.

[0079] Example 4

[0080] like Figure 11 As shown, different from Example 1, the opening of the polarized radiation patch of the left-hand circularly polarized wave path coupling module of the antenna cover in this embodiment is toward the lower right corner, and the opening of the polarized radiation patch of the right-hand circularly polarized wave path coupling module of the antenna cover is toward the lower left corner.

[0081] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A radome based on phase control and transmission technology, characterized in that: It includes several radome left-hand circularly polarized wave path coupling modules and several radome right-hand circularly polarized wave path coupling modules. The radome left-hand circularly polarized wave path coupling modules and the radome right-hand circularly polarized wave path coupling modules are staggered and distributed. The radome left-hand circularly polarized wave path coupling modules and the radome right-hand circularly polarized wave path coupling modules are all centrally symmetrically distributed. The radome left-hand circularly polarized wave path coupling modules and the radome right-hand circularly polarized wave path coupling modules are fixedly connected to each other using a um-level coating process. The antenna cover left-hand circularly polarized wave path coupling module comprises a polarized radiation patch, a substrate, a metal plane plate (5), a metal column and a metal ring, wherein the polarized radiation patch is fixedly connected to the substrate, and the substrate is fixedly connected to the metal plane plate (5). The metal ring comprises a first metal ring (1), a second circular ring (2) and a third metal ring (3); the first metal ring (1), the second circular ring (2) and the third metal ring (3) are all circular in shape; the first metal ring (1), the second circular ring (2) and the third metal ring (3) are distributed in concentric circles; The polarized radiation patch includes a first polarized radiation patch (7) and a second polarized radiation patch (8); the substrate includes a first substrate (4) and a second substrate (6); a first through hole (11) is provided on the first substrate (4); and a third through hole (13) is provided on the second substrate (6). The metal pillars include a first metal pillar (9) and a second metal pillar (10), and two second through holes (12) are provided on the metal plane plate (5). The middle ends of the first metal column (9) and the second metal column (10) pass through the second substrate (6), the metal plane plate (5) and the first substrate (4) in sequence from bottom to top; The upper end of the first polarized radiation patch (7) is fixedly connected to the lower end of the first metal column (9), and the upper end of the second polarized radiation patch (8) is fixedly connected to the lower end of the second metal column (10); The upper end of the first metal column (9) is fixedly connected to the center of the inner radius of the third metal ring (3) and the center of the outer radius of the third metal ring (3), and the upper end of the second metal column (10) is fixedly connected to the center of the inner radius of the first metal ring (1) and the center of the outer radius of the first metal ring (1); The second ring (2) is made of vanadium dioxide.

2. The radome based on phase control and transmission technology according to claim 1, characterized in that: The upper end of the polarized radiation patch is fixedly connected to the lower end of the metal column, the middle end of the metal column passes through the substrate and the metal plane plate (5), and the upper end of the metal column is fixedly connected to the metal ring.

3. The radome based on phase control and transmission technology according to claim 2, characterized in that: The number of the radome left-hand circularly polarized wave path coupling modules and the number of the radome right-hand circularly polarized wave path coupling modules are both two.

4. The radome based on phase control and transmission technology according to claim 3, characterized in that: The structures of the radome left-hand circularly polarized wave path coupling module and the radome right-hand circularly polarized wave path coupling module are the same.

5. The radome based on phase control and transmission technology according to claim 4, characterized in that: An opening is provided on the corner of the polarized radiation patch of the left-hand circularly polarized wave path coupling module of the radome and the corner of the polarized radiation patch of the right-hand circularly polarized wave path coupling module of the radome; The rotation angle of the polarized radiation patch opening of the left-hand circularly polarized wave path coupling module of the radome differs by 90 degrees from that of the polarized radiation patch opening of the right-hand circularly polarized wave path coupling module of the radome.

6. The radome based on phase control and transmission technology according to claim 4, characterized in that: The substrate in the radome left-hand circularly polarized wave path coupling module and the substrate in the radome right-hand circularly polarized wave path coupling module are integrally formed; The metal plane plate (5) in the radome left-hand circularly polarized wave path coupling module and the metal plane plate (5) in the radome right-hand circularly polarized wave path coupling module are integrally formed.

7. The radome based on phase control and transmission technology according to claim 1, characterized in that: The first metal ring (1) and the third metal ring (3) are made of metal. The first polarized radiation patch (7) and the second polarized radiation patch (8) are made of gold; The first substrate (4) and the second substrate (6) are made of silicon; The metal plane plate (5), the first metal column (9) and the second metal column (10) are made of gold.

8. The radome based on phase control and transmission technology according to claim 5, characterized in that: The polarization is adjusted to linear-circular polarization conversion. When a left-hand circularly polarized wave or a right-hand circularly polarized wave is incident, the polarized radiation patch receives the left-hand circularly polarized wave or the right-hand circularly polarized wave with the same phase and amplitude, and obtains a synthesized linearly polarized wave between 0.9 THz and 1.2 THz, with a relative bandwidth of 29%; at 1.08 THz, the maximum group index is 1934 and the maximum group delay is 488 ps.

9. The radome based on phase control and transmission technology according to claim 1, characterized in that: The relative dielectric constant of the substrate was set to 4, and the thickness was set to 37 μm; The inner radius and outer radius of the second ring (2) can be designed to be 25.3 μm and 38.0 μm respectively; The thickness of the first metal ring (1) and the third metal ring (3) is set to 0.5 μm; When the vanadium dioxide ring is in an insulating state, the relative dielectric constant is 12 and the conductivity is 200S / m; When the vanadium dioxide ring is in the metallic state, the corresponding conductivity is 3× 10 5 S / m.

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