Honeycomb super-medium reflective array, transmission array and transflective array integrated with reconfigurable filtering

Abstract

The invention provides an integrated reconfigurable filtering honeycomb super-medium reflective array, which belongs to the field of antennae and comprises a multi-feed horn, a reflective array ground plane and a first transmission network arranged on the surface of one side of the reflective array ground plane in a matrix mode. Reconfigurable filters corresponding to the positions of the first transmission networks are arranged on the surface of the other side of the reflection ground plane, and each first transmission network comprises a honeycomb-shaped transmitting unit T and a honeycomb-shaped receiving unit R. The multi-feed-source horn transmits electromagnetic wave signals to the air. Each receiving unit R receives a signal and transmits the signal to the transmitting unit T through the corresponding reconfigurable filter, each transmitting unit T transmits wave beams outwards, the transmitting unit T can receive the wave beams transmitted by different receiving units R, and performance parameters are set and reflected frequency characteristics are adjusted by adjusting the reconfigurable filters; the invention further provides a honeycomb super-medium transmission array integrated with reconfigurable filtering. The invention also provides a transflective array. And the frequency selectivity and the out-of-band rejection capability of the antenna are improved.

Description

Technical Field

[0001] The present invention relates to the field of antenna technology, and in particular to a honeycomb meta-medium reflection array, a transmission array and a transflective array with integrated reconfigurable filtering. Background Art

[0002] As an important component of modern antenna technology, reflective array and transmission array antennas have significant advantages such as small size, low profile, and high gain. They radiate electromagnetic waves from the feed source in the form of a specific beam through phase adjustment, which is equivalent to the application of optical lenses in the field of electromagnetic waves. For example, the Chinese invention patent application with publication number CN118099762A, "A phase-sweep frequency-sweep reflective array, transmission array, and transmission-reflective array," can realize frequency scanning to generate beam scanning, and can also use a phase shifter to adjust the phase to achieve beam scanning. The combination of the two can achieve continuous wave scanning. However, the filtering characteristics of the reflective array, transmission array, and transmission-reflective array antennas are fixed, and they cannot cope with dynamic interference signals or multi-band coexistence scenarios. The fixed filter passband leads to low spectrum utilization, which cannot adapt to the potential applications of future 6G wireless communications and radar.

[0003] With the rapid development of microelectronics and computer technology, especially the emergence of large-scale, high-performance programmable devices, circuit reconfiguration technology has gradually emerged. It breaks the traditional boundaries between hardware and software, enabling the softwareization of hardware circuits, thereby significantly improving system flexibility and reusability. The introduction of reconfigurable technology has made the performance of reflector arrays and transmission arrays more flexible and variable. However, existing antennas using reconfigurable technology have relatively limited functionality. Some antennas only support single-dimensional reconfiguration in frequency or polarization, and cannot jointly control the spectrum, phase, and radiation pattern. Mechanical tuning also requires milliseconds to seconds to respond, making it unsuitable for real-time dynamic scenarios.

[0004] Furthermore, metamaterials offer a new approach to material performance design. By designing metallic microstructures to exhibit extraordinary physical phenomena such as negative dielectric constant, negative magnetic permeability, and negative refractive index, metamaterials can achieve specific electromagnetic properties by resonating with electromagnetic waves through microstructural design at the physical scale. This allows for the manipulation of electromagnetic wave transmission to some extent. Due to their unique electromagnetic properties, metamaterials can achieve wave transmission within specific frequency bands, offering enormous potential for application and development in a wide range of equipment technologies, including radar and antennas. Summary of the Invention

[0005] The technical problem to be solved by the present invention is how to improve the frequency selectivity and out-of-band suppression capability of the antenna.

[0006] The present invention solves the above-mentioned technical problems through the following technical solutions: a honeycomb metamaterial reflector array with integrated reconfigurable filtering, the reflector array including multiple feed horns, a reflector ground plane, and a first transmission network arranged in a matrix on one side of the reflector ground plane; a reconfigurable filter corresponding to the position of each first transmission network is arranged on the other side of the reflector ground plane; the first transmission network includes a honeycomb-shaped transmitting unit T and a receiving unit R; the multiple feed horns transmit electromagnetic wave signals into the air; each receiving unit R receives the signal and transmits it to the transmitting unit T through its corresponding reconfigurable filter; each transmitting unit T emits a beam outward; the transmitting unit T is capable of receiving beams emitted by different receiving units R; and the reflected frequency characteristics are adjusted by adjusting the performance parameters of the reconfigurable filter.

[0007] Beneficial effects: The present invention provides a MIMO architecture of a cellular metamaterial reflector array with integrated reconfigurable filtering. By adjusting the performance parameters of the reconfigurable filter setting, the filter stopband position is adjusted in real time, and the reflected frequency characteristics are adjusted, the passband can be flexibly adjusted, interference frequencies can be actively avoided, and spectrum utilization can be improved. The reflector array has high out-of-band suppression, high frequency selectivity and adjustable passband characteristics, which can achieve more flexible frequency band adjustment capabilities and adapt to more complex application scenarios.

[0008] Preferably, the transmitting unit T and the receiving unit R respectively include seven dielectric blocks in the form of regular hexagons, and the seven dielectric blocks are evenly and symmetrically arranged periodically to form metamaterial properties. The arrangement is as follows: with one of the dielectric blocks as the center of the circle, the other six dielectric blocks are evenly spaced and arranged along the circumferential direction.

[0009] Preferably, the transmitting unit T, the receiving unit R and the reconfigurable filter are respectively connected via a feeding network, and the reconfigurable filter is connected to the controller.

[0010] The present invention also provides a honeycomb metamaterial transmission array with integrated reconfigurable filtering, which includes multiple feed horns, a first transmission position plane, a second transmission position plane, a second transmission network arranged in a matrix on a side surface of the first transmission position plane, and a third transmission network arranged in a matrix on a side surface of the second transmission position plane. Reconfigurable filters corresponding to the positions of the second transmission network and the third transmission network are set in the gap between the first transmission position plane and the second transmission position plane. The second transmission network includes a honeycomb-shaped receiving unit R, and the third transmission network includes a honeycomb-shaped transmitting unit T. The multiple feed horns transmit electromagnetic wave signals into the air. Each receiving unit R of the second transmission network receives the signal and transmits it to the transmitting unit T of the third transmission network through its corresponding reconfigurable filter. Each transmitting unit T transmits a beam outward, and the transmitting unit T is capable of receiving beams transmitted by different receiving units R. The performance parameters of the reconfigurable filter are adjusted by a controller, and the transmission frequency characteristics are adjusted by adjusting the filter stopband position in real time.

[0011] Beneficial effects: The present invention provides a MIMO architecture of a cellular metamaterial transmission array with integrated reconfigurable filtering. By adjusting the performance parameters of the reconfigurable filter setting, the filter stopband position is adjusted in real time, and the transmission frequency characteristics are adjusted, the passband can be flexibly adjusted, interference frequencies can be actively avoided, and spectrum utilization can be improved. The transmission array has high out-of-band suppression, high frequency selectivity and adjustable passband characteristics, which can achieve more flexible frequency band adjustment capabilities and adapt to more complex application scenarios.

[0012] Preferably, the transmitting unit T and the receiving unit R respectively include seven dielectric blocks in the form of regular hexagons, and the seven dielectric blocks are evenly and symmetrically arranged periodically to form metamaterial properties. The arrangement is as follows: with one of the dielectric blocks as the center of the circle, the other six dielectric blocks are evenly spaced and arranged along the circumferential direction.

[0013] Preferably, the transmitting unit T, the receiving unit R and the reconfigurable filter are respectively connected via a feeding network, and the reconfigurable filter is connected to the controller.

[0014] The present invention also provides a honeycomb metamaterial reflective array with integrated reconfigurable filtering. The reflective array includes multiple feed horns, a first reflective plane, a second reflective plane, a fourth transmission network arranged in a matrix on a side surface of the first reflective plane, and a fifth transmission network arranged in a matrix on a side surface of the second reflective plane. Reconfigurable filters corresponding to the positions of the fourth and fifth transmission networks are provided in the gap between the first and second reflective planes. The fourth transmission network includes honeycomb-shaped receiving units R and transmitting units T. The fifth transmission network includes honeycomb-shaped transmitting units T. The multiple feed horns transmit electromagnetic wave signals into the air. Each receiving unit R of the fourth transmission network receives the signal and transmits it to the transmitting unit T of the fourth or fifth transmission network through its corresponding reconfigurable filter. Each transmitting unit T emits a beam outward. The transmitting unit T is capable of receiving beams transmitted by different receiving units R. The performance parameters of the reconfigurable filter are adjusted by a controller, and the reflection / transmission frequency characteristics are adjusted by real-time adjustment of the filter stopband position.

[0015] Beneficial effects: The present invention provides a MIMO architecture of a cellular meta-medium transflective array with integrated reconfigurable filtering. By adjusting the performance parameters of the reconfigurable filter setting, the filter stopband position is adjusted in real time, and the reflection / transmission frequency characteristics are adjusted, the passband can be flexibly adjusted, interference frequencies can be actively avoided, and spectrum utilization can be improved. The transflective array has high out-of-band suppression, high frequency selectivity and adjustable passband characteristics, which can achieve more flexible frequency band adjustment capabilities and adapt to more complex application scenarios.

[0016] Preferably, the transmitting unit T and the receiving unit R respectively include seven dielectric blocks in the form of regular hexagons, and the seven dielectric blocks are evenly and symmetrically arranged periodically to form metamaterial properties. The arrangement is as follows: with one of the dielectric blocks as the center of the circle, the other six dielectric blocks are evenly spaced and arranged along the circumferential direction.

[0017] Preferably, a reconfigurable filter is connected between the receiving unit R of the fourth transmission network and the transmitting unit T at the corresponding position on the fifth transmission network, and a reconfigurable filter is also connected between the receiving unit R of the fourth transmission network and the transmitting unit T at the corresponding position on the fourth transmission network. The transmitting unit T, the receiving unit R and the reconfigurable filter are respectively connected through a feeding network, and the reconfigurable filter is connected to the controller.

[0018] Preferably, the reconfigurable filter is an independent filter device of a microstrip structure or a cavity structure, or the filtering function of the microstrip structure or the cavity structure is integrated into the transflective array unit.

[0019] The advantages provided by the present invention also include:

[0020] 1. The present invention designs the transmitting unit T and the receiving unit R into metamaterial properties, so that the electromagnetic response of the transmitting unit T and the receiving unit R is more uniform under any incident direction (such as different polarizations or angles), reducing the sensitivity to the direction of arrival or polarization angle, and enhancing the wide-angle scanning performance of the transmitting array.

[0021] 2. The present invention utilizes the unique electromagnetic properties of cellular metamaterial units and the dynamic spectrum management of reconfigurable filters, combined with multi-feed horns arranged on the ground plane and matrix-arranged receiving and transmitting units, to overcome the traditional MIMO unit reliance on spatial diversity, enabling the MIMO system to support more independent channels within a limited physical size. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a cellular metamaterial reflective array with integrated reconfigurable filtering is provided for embodiment 1 of the present invention;

[0023] Figure 2 A single link schematic diagram of a cellular metamaterial reflective array with integrated reconfigurable filtering is provided for embodiment 1 of the present invention;

[0024] Figure 3 A schematic diagram of a single honeycomb receiving unit / transmitting unit in a honeycomb metamaterial reflective array with integrated reconfigurable filtering is provided for embodiment 1 of the present invention;

[0025] Figure 4 A schematic diagram of a single honeycomb receiving unit / transmitting unit in a honeycomb metamaterial reflective array with integrated reconfigurable filtering using a slot-coupled feeding method is provided for embodiment 1 of the present invention;

[0026] Figure 5 Provided is a top view of a single honeycomb receiving unit / transmitting unit in a honeycomb metamaterial reflective array with integrated reconfigurable filtering using a slot-coupled feeding method for embodiment 1 of the present invention;

[0027] Figure 6 A schematic diagram of a honeycomb metamaterial transmission array with integrated reconfigurable filtering is provided for embodiment 2 of the present invention;

[0028] Figure 7 A schematic diagram of a single link of a cellular metamaterial transmission array with integrated reconfigurable filtering is provided for embodiment 2 of the present invention;

[0029] Figure 8 A schematic diagram of a cellular metamaterial transflective array with integrated reconfigurable filtering is provided for Example 3 of the present invention;

[0030] Figure 9 A single link schematic diagram of a cellular metamaterial transflective array with integrated reconfigurable filtering is provided for Example 3 of the present invention;

[0031] In the figure: 1 multi-feed horn, 2 electromagnetic wave signal, 3 first transmission network, 4 reflection array plane, 5 multi-beam emitted by reflection array, 6 reconfigurable filter, 7 feeding network, 8 first transmission array plane, 9 second transmission array plane, 10 second transmission network, 11 third transmission network, 12 multi-beam emitted by transmission array, 13 first transmission and reflection array plane, 14 second transmission and reflection array plane, 15 fourth transmission network, 16 fifth transmission network, 17 multi-beam emitted by transmission and reflection array. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the following describes the technical solutions of the present invention clearly and completely with reference to specific embodiments and the accompanying drawings. It is obvious that the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] like Figure 1 and Figure 2As shown, this embodiment provides a honeycomb metamaterial reflector array with integrated reconfigurable filtering, comprising a multi-feed horn 1, a reflective ground plane 4, and a first transmission network 3 arranged in a matrix on one side of the reflective ground plane 4. Reconfigurable filters 6 corresponding to the positions of each first transmission network 3 are arranged on the other side of the reflective ground plane 4. The one and other surfaces of the reflective ground plane 4 are the front and back sides of the transmitting ground plane. The first transmission network 3 is an N×M (N≥1, M≥1) array and includes honeycomb-shaped transmitting units T and receiving units R. The transmitting units T and receiving units R are connected to the reconfigurable filters 6 via feed networks 7, and the reconfigurable filters 6 are each connected to a controller. The multi-feed horn 1 transmits an electromagnetic wave signal 2 into the air. Each receiving unit R receives the signal and transmits it to the transmitting unit T through its corresponding reconfigurable filter 6. Each transmitting unit T emits a beam 5 outward. The transmitting unit T can receive beams transmitted by different receiving units R. The controller adjusts the performance parameters of the reconfigurable filter to adjust the reflected frequency characteristics.

[0035] The reconfigurable filter can be an independent filter device such as a microstrip structure or a cavity structure, or it can be integrated into a reflective array unit, similar to the concept of a filtering antenna. However, the filter performance parameters must be adjustable. The present invention achieves the adjustment of the filter performance parameters through an external control circuit.

[0036] See also Figure 3 The honeycomb-shaped transmitting unit T and receiving unit R each include seven regular hexagonal dielectric blocks. The seven dielectric blocks are evenly and symmetrically arranged periodically to form metamaterial properties. The arrangement is as follows: with one dielectric block as the center of the circle, the other six dielectric blocks are evenly spaced along the circumference. At the same time, slot coupling can be used for feeding, which is conducive to dynamically adjusting the slot parameters for tuning and matching. This embodiment provides a slot coupling feeding method for the transmitting unit T / receiving unit R, as shown in FIG. Figure 4 and Figure 5 As shown, the transmitting unit T and receiving unit R each include a dielectric substrate 31 and a ground plane 32, stacked from bottom to top. Seven dielectric blocks are located on the upper surface of the ground plane. A feed port is provided on the side of the dielectric substrate 31, and comb-shaped slots are provided on the ground plane 32. Signals are input from the feed port, transmitted via a feed transmission line on the dielectric substrate 31 to the comb-shaped slots, and then coupled to the dielectric blocks above through the comb-shaped slots. Metamaterials are a class of artificial materials with unique electromagnetic properties that control electromagnetic waves through precisely designed microstructures rather than the chemical composition of the material itself. By designing the transmitting unit T and receiving unit R with metamaterial properties, the present invention achieves a more uniform electromagnetic response under any incident direction (e.g., different polarizations or angles), reduces sensitivity to direction of arrival or polarization angle, and enhances the wide-angle scanning performance of the transmitting array.

[0037] By creating a circular gap in the center of each hexagonal dielectric block, further miniaturization can be achieved. Multi-layer stacking can also be designed, forming composite resonant modes through electromagnetic coupling between layers, enabling the integration of more functional applications.

[0038] The present invention provides a MIMO architecture of a cellular metamaterial reflector array with integrated reconfigurable filtering. By adjusting the performance parameters of the reconfigurable filter, the filter stopband position is adjusted in real time, and the reflected frequency characteristics are adjusted, the passband can be flexibly adjusted, interference frequencies can be actively avoided, and spectrum utilization can be improved. The reflector array has high out-of-band suppression, high frequency selectivity and adjustable passband characteristics, which can achieve more flexible frequency band adjustment capabilities and adapt to more complex application scenarios.

[0039] The units in the reflective array are loaded with metamaterial dielectric blocks. First, metamaterials can achieve flexible control of the equivalent dielectric constant and magnetic permeability through artificial structures, and even achieve properties such as negative refractive index and zero refractive index, breaking through the electromagnetic parameter limitations of traditional materials; secondly, the unit size can be much smaller than the working wavelength, significantly reducing the array cross-section and volume, and realizing a compact and lightweight MIMO antenna design. At the same time, the dielectric material has low loss and high radiation efficiency.

[0040] The present invention utilizes the special electromagnetic characteristics of cellular metamaterial units and the dynamic spectrum management of reconfigurable filters, combined with multi-feed speakers set on the ground plane and matrix-arranged receiving and transmitting units, to break through the traditional MIMO unit reliance on spatial diversity, enabling the MIMO system to support more independent channels within a limited physical size.

[0041] Example 2

[0042] like Figure 6 and Figure 7As shown, this embodiment provides a honeycomb metamaterial transmission array with integrated reconfigurable filtering, comprising a multi-feed horn 1, a first transmission array plane 8, a second transmission array plane 9, a second transmission network 10 arranged in a matrix on a side surface of the first transmission array plane 8, and a third transmission network 11 arranged in a matrix on a side surface of the second transmission array plane 9. The side surface of the first transmission array plane 8 and the side surface of the second transmission array plane 9 are two parallel planes located on the same side. The gap between the first transmission array plane 8 and the second transmission array plane 9 is provided with a reconfigurable filter 6 corresponding to the position of the second transmission network 10 and the third transmission network 11. The second transmission network 10 and the third transmission network 11 are both N×M (N≥1, M≥1) arrays. The second transmission network 10 includes honeycomb-shaped receiving units R, and the third transmission network 11 includes honeycomb-shaped transmitting units T. The transmitting units T and the receiving units R are respectively connected to the reconfigurable filter 6 via a feed network 7. The reconfigurable filter 6 is also connected to a controller. The multi-feed horn 1 transmits an electromagnetic wave signal 2 into the air. The receiving units R of each second transmission network 8 receive the signal and transmit it to the transmitting unit T of the third transmission network 9 through their corresponding reconfigurable filters 6. Each transmitting unit T transmits a beam 12 outward. The transmitting unit T can receive beams emitted by different receiving units R. The performance parameters of the reconfigurable filter are adjusted by the controller, and the transmission frequency characteristics are adjusted by adjusting the filter stopband position in real time.

[0043] The reconfigurable filter can be an independent filter device such as a microstrip structure or a cavity structure, or it can be integrated into a transmission array unit, similar to the concept of a filtering antenna.

[0044] See also Figure 3 The honeycomb-shaped transmitting unit T and receiving unit R each include seven regular hexagonal dielectric blocks. The seven dielectric blocks are evenly and symmetrically arranged periodically to form metamaterial properties. The arrangement is as follows: with one dielectric block as the center of the circle, the other six dielectric blocks are evenly spaced along the circumference. At the same time, slot coupling can be used for feeding, which is conducive to dynamically adjusting the slot parameters for tuning and matching. In this embodiment, the transmitting unit T / receiving unit R can be used Figure 4 The slot-coupled feeding method shown has the same specific structure as that of Example 1 and will not be described in detail here. Metamaterials are a type of artificial material with special electromagnetic properties that control electromagnetic waves through precise design of their microstructure rather than the chemical composition of the material itself. The present invention designs the transmitting unit T and the receiving unit R with metamaterial properties, making the electromagnetic response of the transmitting unit T and the receiving unit R more uniform under any incident direction (such as different polarizations or angles), reducing sensitivity to the direction of arrival or polarization angle, and enhancing the wide-angle scanning performance of the transmitting array.

[0045] By creating a circular gap in the center of each hexagonal dielectric block, further miniaturization can be achieved. Multi-layer stacking can also be designed, forming composite resonant modes through electromagnetic coupling between layers, enabling the integration of more functional applications.

[0046] The present invention provides a MIMO architecture of a cellular metamaterial transmission array with integrated reconfigurable filtering. By adjusting the performance parameters of the reconfigurable filter, the filter stopband position is adjusted in real time, and the transmission frequency characteristics are adjusted, the passband can be flexibly adjusted, interference frequencies can be actively avoided, and spectrum utilization can be improved. The reflective array has high out-of-band suppression, high frequency selectivity and adjustable passband characteristics, which can achieve more flexible frequency band adjustment capabilities and adapt to more complex application scenarios.

[0047] The units in the transmission array are loaded with metamaterial dielectric blocks. First, metamaterials can achieve flexible control of the equivalent dielectric constant and magnetic permeability through artificial structures, and even achieve properties such as negative refractive index and zero refractive index, breaking through the electromagnetic parameter limitations of traditional materials; secondly, the unit size can be much smaller than the working wavelength, significantly reducing the array cross-section and volume, and realizing a compact and lightweight MIMO antenna design. At the same time, the dielectric material has low loss and high radiation efficiency.

[0048] The present invention utilizes the special electromagnetic characteristics of cellular metamaterial units and the dynamic spectrum management of reconfigurable filters, combined with multi-feed speakers set on the ground plane and matrix-arranged receiving and transmitting units, to break through the traditional MIMO unit reliance on spatial diversity, enabling the MIMO system to support more independent channels within a limited physical size.

[0049] Example 3

[0050] like Figure 8 and Figure 9As shown, this embodiment provides a cellular metamaterial transflective array with integrated reconfigurable filtering, including a multi-feed horn 1, a first transflective position plane 13, a second transflective position plane 14, a fourth transmission network 15 arranged in a matrix on a side surface of the first transflective position plane 13, and a fifth transmission network 16 arranged in a matrix on a side surface of the second transflective position plane 14. The side surface of the first transflective position plane 13 and the side surface of the second transflective position plane 14 are two parallel planes located on the same side. A reconfigurable filter 6 corresponding to the positions of the fourth transmission network 15 and the fifth transmission network 16 is set in the gap between the first transmissive and reflective position plane 13 and the second transmissive and reflective position plane 14. The fourth transmission network 15 and the fifth transmission network 16 are both N×M (N≥1, M≥1) arrays. The fourth transmission network 15 includes a honeycomb-shaped receiving unit R and a transmitting unit T. The fifth transmission network 16 includes a honeycomb-shaped transmitting unit T. The reconfigurable filter 6 is connected between the receiving unit R of the fourth transmission network 15 and the transmitting unit T at the corresponding position on the fifth transmission network 16. The reconfigurable filter 6 is also connected between the receiving unit R of the fourth transmission network 15 and the transmitting unit T at the corresponding position on the fourth transmission network 15. The transmitting unit T, the receiving unit R and the reconfigurable filter 6 are respectively connected through the feeding network 7, and the reconfigurable filters 6 are all connected to the controller. The multi-feed horn 1 transmits an electromagnetic wave signal 2 into the air. The receiving units R of each fourth transmission network 15 receive the signal and transmit it to the transmitting unit T of the fourth transmission network 15 or the fifth transmission network 16 through the corresponding reconfigurable filter 6. Each transmitting unit T transmits a beam 17 outward. The transmitting unit T can receive beams transmitted by different receiving units R. The performance parameters of the reconfigurable filter are adjusted by the controller, and the reflection / transmission frequency characteristics are adjusted by adjusting the filter stopband position in real time.

[0051] The reconfigurable filter can be an independent filter device such as a microstrip structure or a cavity structure, or it can be integrated into a transflective array unit, similar to the concept of a filtering antenna.

[0052] See also Figure 3 The honeycomb-shaped transmitting unit T and receiving unit R each include seven regular hexagonal dielectric blocks. The seven dielectric blocks are evenly and symmetrically arranged periodically to form metamaterial properties. The arrangement is as follows: with one dielectric block as the center of the circle, the other six dielectric blocks are evenly spaced along the circumference. At the same time, slot coupling can be used for feeding, which is conducive to dynamically adjusting the slot parameters for tuning and matching. In this embodiment, the transmitting unit T / receiving unit R can be used Figure 4The slot-coupled feeding method shown has the same specific structure as that of Example 1 and will not be described in detail here. Metamaterials are a type of artificial material with special electromagnetic properties that control electromagnetic waves through precise design of their microstructure rather than the chemical composition of the material itself. The present invention designs the transmitting unit T and the receiving unit R with metamaterial properties, making the electromagnetic response of the transmitting unit T and the receiving unit R more uniform under any incident direction (such as different polarizations or angles), reducing sensitivity to the direction of arrival or polarization angle, and enhancing the wide-angle scanning performance of the transmitting array.

[0053] By creating a circular gap in the center of each hexagonal dielectric block, further miniaturization can be achieved. Multi-layer stacking can also be designed, forming composite resonant modes through electromagnetic coupling between layers, enabling the integration of more functional applications.

[0054] The present invention provides a MIMO architecture of a cellular meta-medium reflective array with integrated reconfigurable filtering. By adjusting the performance parameters of the reconfigurable filter, the filter stopband position is adjusted in real time, and the reflective / transmitted frequency characteristics are adjusted, the passband can be flexibly adjusted, interference frequencies can be actively avoided, and spectrum utilization can be improved. The reflective array has high out-of-band suppression, high frequency selectivity, and adjustable passband characteristics, which can achieve more flexible frequency band adjustment capabilities and adapt to more complex application scenarios.

[0055] The units in the transflective array are loaded with metamaterial dielectric blocks. First, the metamaterial can achieve flexible control of the equivalent dielectric constant and magnetic permeability through artificial structure, and even realize properties such as negative refractive index and zero refractive index, breaking through the electromagnetic parameter limitations of traditional materials; secondly, the unit size can be much smaller than the working wavelength, significantly reducing the array cross-section and volume, and realizing a compact and lightweight MIMO antenna design. At the same time, the dielectric material has low loss and high radiation efficiency.

[0056] The present invention utilizes the special electromagnetic characteristics of cellular metamaterial units and the dynamic spectrum management of reconfigurable filters, combined with multi-feed speakers set on the ground plane and matrix-arranged receiving and transmitting units, to break through the traditional MIMO unit reliance on spatial diversity, enabling the MIMO system to support more independent channels within a limited physical size.

[0057] It should be noted that the signal received by a receiving unit R of the present invention can be sent to multiple other transmitting units T. Therefore, the number of receiving units R and transmitting units T does not necessarily have to correspond one to one or be consistent, and may not correspond one to one. The transmitting unit T can receive the signal of any receiving unit R through the feeding network design and controller. At the same time, the reconfigurable filter is integrated into the feeding network, and the signal interference of non-target receiving units is suppressed by dynamically adjusting the filter passband.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A cellular metamaterial reflector array with integrated reconfigurable filtering, characterized by: The reflector array includes a multi-feed horn, a reflector ground plane, and a first transmission network arranged in a matrix on one side of the reflector ground plane. A reconfigurable filter corresponding to the position of each first transmission network is set on the other side of the reflector ground plane. The first transmission network includes a honeycomb-shaped transmitting unit T and a receiving unit R. The multi-feed horn transmits electromagnetic wave signals into the air. Each receiving unit R receives the signal and transmits it to the transmitting unit T through its corresponding reconfigurable filter. Each transmitting unit T emits a beam outward. The transmitting unit T can receive beams emitted by different receiving units R. The performance parameters of the reconfigurable filter are adjusted to adjust the reflected frequency characteristics.

2. The cellular metamaterial reflector array with integrated reconfigurable filtering according to claim 1, characterized in that: The transmitting unit T and the receiving unit R each include seven regular hexagonal dielectric blocks. The seven dielectric blocks are evenly and symmetrically arranged periodically to form metamaterial properties. The arrangement is as follows: with one dielectric block as the center of the circle, the other six dielectric blocks are evenly spaced along the circumference.

3. The cellular metamaterial reflector array with integrated reconfigurable filtering according to claim 1, characterized in that: The transmitting unit T, the receiving unit R and the reconfigurable filter are respectively connected through a feeding network, and the reconfigurable filter is connected to a controller.

4. Honeycomb metamaterial transmission array with integrated reconfigurable filtering, characterized by: The transmission array includes a multi-feed horn, a first transmission position plane, a second transmission position plane, a second transmission network arranged in a matrix on the surface of one side of the first transmission position plane, and a third transmission network arranged in a matrix on the surface of one side of the second transmission position plane. A reconfigurable filter corresponding to the positions of the second transmission network and the third transmission network is set in the gap between the first transmission position plane and the second transmission position plane. The second transmission network includes a honeycomb-shaped receiving unit R, and the third transmission network includes a honeycomb-shaped transmitting unit T. The multi-feed horn transmits electromagnetic wave signals into the air. Each receiving unit R of the second transmission network receives the signal and transmits it to the transmitting unit T of the third transmission network through its corresponding reconfigurable filter. Each transmitting unit T emits a beam outward. The transmitting unit T can receive beams emitted by different receiving units R. The performance parameters of the reconfigurable filter are adjusted by the controller, and the transmission frequency characteristics are adjusted by adjusting the filter stopband position in real time.

5. The honeycomb metamaterial transmission array with integrated reconfigurable filtering according to claim 4, characterized in that: The transmitting unit T and the receiving unit R each include seven regular hexagonal dielectric blocks. The seven dielectric blocks are evenly and symmetrically arranged periodically to form metamaterial properties. The arrangement is as follows: with one dielectric block as the center of the circle, the other six dielectric blocks are evenly spaced along the circumference.

6. The honeycomb metamaterial transmission array with integrated reconfigurable filtering according to claim 4, characterized in that: The transmitting unit T, the receiving unit R and the reconfigurable filter are respectively connected through a feeding network, and the reconfigurable filter is connected to a controller.

7. A cellular metamaterial transflective array with integrated reconfigurable filtering, characterized by: The transmission and reflection array includes a multi-feed horn, a first transmission and reflection position plane, a second transmission and reflection position plane, a fourth transmission network arranged in a matrix on the surface of one side of the first transmission and reflection position plane, and a fifth transmission network arranged in a matrix on the surface of one side of the second transmission and reflection position plane. A reconfigurable filter corresponding to the position of the fourth transmission network and the fifth transmission network is set in the gap between the first transmission and reflection position plane. The fourth transmission network includes a honeycomb-shaped receiving unit R and a transmitting unit T, and the fifth transmission network includes a honeycomb-shaped transmitting unit T. The multi-feed horn transmits electromagnetic wave signals into the air. Each receiving unit R of the fourth transmission network receives the signal and transmits it to the transmitting unit T of the fourth transmission network or the fifth transmission network through its corresponding reconfigurable filter. Each transmitting unit T emits a beam outward. The transmitting unit T can receive beams emitted by different receiving units R. The performance parameters of the reconfigurable filter are adjusted by the controller, and the reflection / transmission frequency characteristics are adjusted by adjusting the filter stopband position in real time.

8. The cellular metamaterial transflective array with integrated reconfigurable filtering according to claim 7, characterized in that: The transmitting unit T and the receiving unit R each include seven regular hexagonal dielectric blocks. The seven dielectric blocks are evenly and symmetrically arranged periodically to form metamaterial properties. The arrangement is as follows: with one dielectric block as the center of the circle, the other six dielectric blocks are evenly spaced along the circumference.

9. The cellular metamaterial transflective array with integrated reconfigurable filtering according to claim 7, characterized in that: A reconfigurable filter is connected between the receiving unit R of the fourth transmission network and the transmitting unit T at the corresponding position on the fifth transmission network. A reconfigurable filter is also connected between the receiving unit R of the fourth transmission network and the transmitting unit T at the corresponding position on the fourth transmission network. The transmitting unit T, the receiving unit R and the reconfigurable filter are respectively connected through a feeding network, and the reconfigurable filter is connected to the controller.

10. The cellular metamaterial transflective array with integrated reconfigurable filtering according to claim 7, characterized in that: The reconfigurable filter is an independent filter device of microstrip structure or cavity structure, or the filtering function of the microstrip structure or cavity structure is integrated into the transflective array unit.

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