A multifunctional signal transceiver system based on super unit

Abstract

The application discloses a multifunctional signal transceiving system based on superbody, which comprises a superbody modulator for signal conversion and transmission, a feed source for signal transceiving to the superbody modulator, a motorized turntable, wherein the feed source is arranged on the motorized turntable and the motorized turntable is used for driving the feed source to rotate, a light pump for regulating light intensity, a control device for regulating the feed source, the motorized turntable and the light pump, and a parallel light lens group for converting the regulated light into parallel light and irradiating the superbody modulator with the parallel light. The application can make the circularly polarized antenna emit linearly polarized waves and the linearly polarized antenna receive circularly polarized waves with low loss, and realize the switching of the absorption function and the polarization conversion function.

Description

Technical Field

[0001] This invention belongs to the field of electronic communication technology and relates to a multifunctional signal transceiver system based on a metastructure. Background Technology

[0002] In recent years, with the continuous maturation of 5G technology, the research and development of 6G technology has also gradually gained attention. Due to the need for device integration, multifunctional and small-sized devices are showing greater application potential.

[0003] In the field of antenna technology, circularly polarized waves have the advantage of strong anti-interference capabilities, while linearly polarized waves have a wide range of applications. In existing antenna technologies, circularly polarized antennas can receive linearly polarized waves and transmit / receive circularly polarized waves, but cannot transmit linearly polarized waves; while linearly polarized antennas can only transmit and receive linearly polarized waves, and receiving circularly polarized waves would result in high power loss. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a multifunctional signal transceiver system based on a metastructure, which enables circularly polarized antennas to transmit linearly polarized waves and linearly polarized antennas to receive circularly polarized waves with low loss.

[0005] To achieve the above objectives, the present invention is implemented using the following technical solution: This invention provides a multifunctional signal transceiver system based on a metastructure, comprising: Metamorphic modulators are used for signal conversion and transmission; The feed source is used to transmit and receive signals to the hypermorphic modulator. An electric turntable is used to drive the feed source to rotate. Optical pumping is used to regulate light intensity; Control device for regulating the feed source, motorized turntable and optical pump; Parallel light lens group is used to convert the modulated light into parallel light to illuminate the superstructure modulator.

[0006] Optionally, the superstructure modulator consists of two basic units arranged in a 2×2 array.

[0007] Optionally, the period of the two basic units is 80 μm, and the array period is 160 μm.

[0008] Optionally, one basic unit consists of a metal substrate and an upper semiconductor square ring; another basic unit consists of a metal substrate, an organic polymer dielectric intermediate layer, and an upper metal and semiconductor combined pattern.

[0009] Optionally, the metal substrate has a thickness of 2 μm and the semiconductor square ring has a thickness of 10 μm.

[0010] Optionally, the thickness of the metal substrate is 2 μm, the thickness of the organic polymer medium interlayer is 30 μm, and the thickness of the metal semiconductor composite pattern is 5 μm.

[0011] Optionally, the refractive index of the semiconductor material is n Si =11.9; the refractive index of the organic polymer medium is n PI =3.5; the electrical conductivity of the metal is 5.8 × 10⁻⁶. 7 S / m.

[0012] Optionally, the feed source includes a circularly polarized antenna and a linearly polarized antenna arranged in opposite directions.

[0013] Optionally, the operating frequency band of the feed source is 0.5-2.2 THz.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: This invention provides a multifunctional signal transceiver system based on a metabody. By adjusting the light intensity through optical pumping, the photoconductivity of the semiconductor in the metabody modulator is adjusted, thereby realizing the conversion of the reflection, absorption, and polarization functions of the metabody modulator. By changing the output of the optical pump, the switching from circular polarization to absorption function is realized, thereby achieving the modulation of terahertz electromagnetic waves. This invention features a simplified design, enabling miniaturization and controllability, and is a high-performance, multi-functional antenna signal reflector. Furthermore, through a control device, it can enable the circularly polarized antenna to transmit linearly polarized waves and the linearly polarized antenna to receive circularly polarized waves with low loss. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an embodiment of the present invention; Figure 2 This is a front view of a 2×2 array of a superstructure modulator according to an embodiment of the present invention; Figure 3 This is a 2×2 array side view of the superstructure modulator according to an embodiment of the present invention; Figure 4 The absorption rate curves of the superstructure modulator in the embodiment of the present invention are shown in the range of 0.5-3.0 THz. Figure 5 The image shows the axial ratio curves of linearly polarized waves obtained by the superstructure modulator in the polarization transition from 0.5 to 2.0 THz according to an embodiment of the present invention. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0017] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] like Figures 1 to 5 As shown, a multifunctional signal transceiver system based on a metastructure includes: A metamorphic modulator is used for signal conversion and transmission. The metamorphic modulator consists of two basic units arranged in a 2×2 array. The period of each basic unit is 80 μm, and the array period is 160 μm. One basic unit consists of a metal substrate and an upper semiconductor square ring; the other basic unit consists of a metal substrate, an organic polymer intermediate layer, and an upper metal-semiconductor composite pattern. In one basic unit, the metal substrate is 2 μm thick, and the semiconductor square ring is 10 μm thick. In the other basic unit, the metal substrate is 2 μm thick, the organic polymer intermediate layer is 30 μm thick, and the metal-semiconductor composite pattern is 5 μm thick. The semiconductor material is silicon with a refractive index of n. Si =11.9; the organic polymer medium is polyimide with a refractive index of n. PI =3.5; the metal is copper, and the conductivity is 5.8 × 10⁻⁵. 7 S / m.

[0020] The feed source is used to transmit and receive signals to the superstructure modulator; the feed source includes a circularly polarized antenna and a linearly polarized antenna arranged in opposite directions, and the operating frequency band of the feed source is 0.5-2.2 THz.

[0021] An electric turntable is used to drive the feed source to rotate, thereby enabling the circularly polarized antenna and the linearly polarized antenna to face or turn away from the metabody modulator, respectively.

[0022] Optical pumping is used to regulate the light intensity, change the photoconductivity of the semiconductor material of the metamorphic modulator, thereby affecting the performance of the metamorphic device, regulating the electromagnetic wave absorption rate, and realizing the function of absorbing signals. In the absence of light, circularly polarized waves will reflect linearly polarized waves after entering the multifunctional reflective surface, realizing the polarization conversion of terahertz electromagnetic waves.

[0023] The control device is used to regulate the feed source, motorized turntable, and optical pump; by regulating the feed source, motorized turntable, and optical pump, the photoconductivity of the semiconductor is changed, thereby achieving polarization conversion and switching of absorption functions; as the illumination gradually increases, the absorption rate of the metabody modulator gradually increases, such as... Figure 4 As shown, when the conductivity of silicon is controlled at around 9000 S / m, the absorption band reaches over 90% in the range of 0.89 to 2.01 THz. Figure 5 As shown, when the conductivity of silicon is controlled at around 0 S / m, the absorption band is mainly below 0.1. The absorption rate of the metabody modulator gradually increases from 0.1 to 0.9 with the increase of light intensity, realizing the optical control of signal switching. like Figure 5 As shown, when the conductivity of silicon is controlled to be around 0 S / m, the lowest linear polarization axial ratio of the reflected signal is 19 dB within the operating frequency band. Compared with using a linearly polarized antenna to directly receive circularly polarized waves, the power loss is significantly reduced, and the modulation of the signal polarization state is realized. Silicon semiconductors perform best when their conductivity reaches 9000 S / m, enabling ultra-wideband absorption with an absorption rate of over 90%, thus achieving the optical control signal switching function during transmission.

[0024] Parallel light lens group is used to convert the modulated light into parallel light to illuminate the superstructure modulator. The parallel light lens group can avoid the conductivity difference caused by the light source.

[0025] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A multifunctional signal transceiver system based on a metastructure, characterized in that, include: Metamorphic modulators are used for signal conversion and transmission; The feed source is used to transmit and receive signals to the hypermorphic modulator. An electric turntable is used to drive the feed source to rotate. Optical pumping is used to regulate light intensity; Control device for regulating the feed source, motorized turntable and optical pump; Parallel light lens group is used to convert the modulated light into parallel light to illuminate the superstructure modulator; The superstructure modulator is composed of two basic units, which are arranged in a 2×2 array. The two basic units have a period of 80 μm, and the array period is 160 μm; One basic unit consists of a metal substrate and an upper semiconductor square ring; another basic unit consists of a metal substrate, an organic polymer dielectric intermediate layer, and an upper metal and semiconductor combined pattern. The feed includes a circularly polarized antenna and a linearly polarized antenna positioned opposite each other.

2. The multifunctional signal transceiver system based on a metastructure according to claim 1, characterized in that: The metal substrate has a thickness of 2 μm, and the semiconductor square ring has a thickness of 10 μm.

3. The multifunctional signal transceiver system based on a metastructure according to claim 1, characterized in that: The thickness of the metal substrate is 2 μm, the thickness of the organic polymer medium intermediate layer is 30 μm, and the thickness of the metal semiconductor composite pattern is 5 μm.

4. The multifunctional signal transceiver system based on a metastructure according to claim 1, characterized in that: The refractive index of semiconductor materials is n Si =11.9; the refractive index of the organic polymer medium is n PI =3.5; the electrical conductivity of the metal is 5.8 × 10⁻⁶. 7 S / m.

5. A multifunctional signal transceiver system based on a metastructure according to claim 1, characterized in that: The operating frequency band of the feed is 0.5-2.2 THz.

Images