An excitation device for converting electromagnetic waves in the environment into infrared radiation.

Abstract

This invention provides an excitation device for converting electromagnetic waves in the environment into infrared radiation. The excitation device includes: an antenna for collecting electromagnetic waves from the environment; a conditioning circuit for receiving the electromagnetic waves collected by the antenna and converting them into an electromagnetic excitation signal adapted to the exciter; and an exciter including an electromagnetic excitation unit and an excitable body for generating broadband infrared radiation and narrowband infrared radiation. The magnetostrictive material in the excitable body is capable of undergoing dynamic deformation under the action of an alternating electromagnetic field, and the graphite or graphene in the excitable body undergoes energy level transitions under the alternating compression and stretching caused by the dynamic deformation. The narrowband infrared radiation is the infrared radiation generated by the energy level transitions. This invention utilizes the antenna and conditioning circuit to provide energy to the exciter and generates safe and low-temperature-rise infrared radiation based on the excitable body capable of converting alternating electromagnetic energy into infrared radiation.

Description

Technical Field

[0001] This utility model relates to the field of energy conversion technology, and in particular to an excitation device for converting electromagnetic waves in the environment into infrared radiation. Background Technology

[0002] Graphene is a two-dimensional thin film composed of hexagonal carbon atoms, possessing excellent electrical, thermal, and mechanical properties, making it a hot topic in the field of emerging materials in recent years. Currently, graphene has been widely used in many fields, such as electronics, catalysts, biomedicine, and sensors. Graphene exhibits high carrier mobility, high optical transmittance, high specific surface area, and excellent mechanical strength, making it an ideal candidate material for infrared radiation and thus showing promising application prospects in this field. Graphite is composed of multiple stacked layers of carbon atoms, each layer also consisting of hexagonal honeycomb-like carbon atoms. The layers are bonded by relatively weak van der Waals forces, resulting in good intralayer conductivity but poor interlayer conductivity. Physical and chemical treatments can break the van der Waals forces, separating it into graphene, thus giving graphene good infrared radiation capabilities.

[0003] Currently, infrared radiation has specific and mature applications, primarily focusing on the thermal radiation generated when electricity is applied. This type of infrared radiation, produced by conductive materials such as graphene under certain conditions, has spectral lines that approximate blackbody radiation. However, the thermal radiation effect of infrared radiation easily raises the surface temperature of objects. How to generate infrared radiation with low temperature rise in safer environments remains a problem to be solved. Utility Model Content

[0004] In view of this, the present invention provides an excitation device for converting electromagnetic waves in the environment into infrared radiation. It can use an antenna and a conditioning circuit to provide energy to the exciter, and generate safe and low-temperature infrared radiation based on the excited body that can convert alternating electromagnetic energy into infrared radiation. Furthermore, the excitation device proposed in this application can also have a wider range of applications, such as realizing the irradiation of biochemical materials and safer biomedical irradiation.

[0005] One aspect of this invention provides an excitation device for converting electromagnetic waves in the environment into infrared radiation, comprising:

[0006] Antennas are used to collect electromagnetic waves from the environment;

[0007] The conditioning circuit is used to receive electromagnetic waves collected by the antenna and convert the electromagnetic waves into electromagnetic excitation signals adapted to the exciter; the exciter includes an electromagnetic excitation unit and an excited body. The exciter is used to receive the electromagnetic excitation signal and input the electromagnetic excitation signal into the electromagnetic excitation unit to generate an alternating electromagnetic field, thereby causing the excited body to generate broadband infrared radiation and narrowband infrared radiation through the alternating electromagnetic field.

[0008] The excited body is a solid composite material containing either graphite or graphene and a magnetostrictive material. The magnetostrictive material can undergo motion deformation under the action of an alternating electromagnetic field. Graphite or graphene can undergo energy level transitions under the alternating action of compression and stretching generated by the motion deformation. The narrowband infrared radiation is the infrared radiation generated by the energy level transition.

[0009] In some embodiments of this invention, the antenna, conditioning circuit, and electromagnetic excitation unit are all planar structures fabricated using flexible printed circuit board technology.

[0010] In some embodiments of this utility model, the antenna is a dipole antenna.

[0011] In some embodiments of this invention, the conditioning circuit is a ring hybrid circuit.

[0012] In some embodiments of this utility model, the electromagnetic excitation unit is an electromagnetic coil, and the electromagnetic excitation signal is an alternating current; the excited body is placed within the coverage area of ​​the alternating electromagnetic field of the electromagnetic coil.

[0013] In some embodiments of this invention, broadband infrared radiation is thermal radiation generated by eddy currents produced on graphite or graphene under the action of an alternating electromagnetic field.

[0014] In some embodiments of this invention, the spectral linewidth of broadband infrared radiation is greater than that of narrowband infrared radiation, and the corresponding bands of broadband infrared radiation and narrowband infrared radiation overlap.

[0015] In some embodiments of this invention, the excited body is a solid block or solid particles.

[0016] In some embodiments of this invention, the excited body is a solid composite material containing graphene and magnetostrictive material. The solid composite material achieves energy transfer through dynamic deformation by close contact between graphene and magnetostrictive material, thereby causing energy level transitions.

[0017] In some embodiments of this invention, the graphene and magnetostrictive material in the solid composite material are in powder form, and the particle size of the graphene and magnetostrictive material is below the micrometer level.

[0018] This invention proposes an excitation device for converting electromagnetic waves in the environment into infrared radiation. It utilizes an antenna and conditioning circuitry to provide energy to the exciter, simultaneously generating two types of infrared radiation: broadband infrared radiation and narrowband infrared radiation based on energy level transitions. This excitation device can produce safe and cryogenic infrared radiation based on an excited body capable of converting alternating electromagnetic energy into infrared radiation, and has broad application prospects in fields such as irradiation of biochemical materials and safer biomedical irradiation.

[0019] Additional advantages, objects, and features of this invention will be set forth in part in the description which follows, and will in part become apparent to those skilled in the art upon review of the description, or may be learned by practice of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures specifically pointed out in the description and drawings.

[0020] Those skilled in the art will understand that the objectives and advantages achievable with this invention are not limited to those specifically described above, and that the above and other objectives achievable with this invention will become clearer from the following detailed description. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, do not constitute a limitation thereof. The components in the drawings are not drawn to scale but are merely for illustrating the principles of the present invention. For ease of illustration and description of certain parts of the present invention, corresponding portions in the drawings may be enlarged, i.e., may appear larger relative to other components in an exemplary device actually manufactured according to the present invention. In the drawings:

[0022] Figure 1 This is a schematic diagram of the excitation device in one embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the conditioning circuit in one embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the exciter in one embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the mechanism of the excitation device in one embodiment of the present invention.

[0026] Figure 5 This is a spectral diagram of infrared radiation generated by the excitation device in one embodiment of the present invention. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this utility model are used to explain the present utility model, but are not intended to limit the present utility model.

[0028] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0029] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, element, step, or component, but does not exclude the presence or addition of one or more other features, elements, steps, or components.

[0030] It should also be noted that, unless otherwise specified, the term "connection" in this article can refer not only to a direct connection, but also to an indirect connection involving an intermediary.

[0031] In the following description, embodiments of the present invention will be illustrated with reference to the accompanying drawings. In the drawings, the same reference numerals represent the same or similar parts, or the same or similar steps.

[0032] Currently, infrared radiation has specific and mature application scenarios, mainly focusing on the thermal radiation generated after being powered on. This type of infrared radiation is infrared radiation whose spectral lines are similar to blackbody radiation produced by conductive materials such as graphene under certain conditions.

[0033] Based on this, in order to obtain infrared radiation with a wider range of applications and low temperature rise, this application creatively proposes an excitation device that can simultaneously generate infrared radiation including infrared radiation spectral lines excited by eddy currents and infrared spectral lines excited by material characteristic spectral lines.

[0034] For ease of writing, this application refers to the infrared radiation similar to blackbody radiation generated by the work done by eddy currents in a conductor as broadband infrared radiation (i.e., Figure 4 The infrared radiation generated by the excitation of material characteristic spectral lines is called narrowband infrared radiation (i.e., eddy current infrared radiation). Figure 4 (transition infrared radiation in the middle).

[0035] This application utilizes a combination of antenna and conditioning circuitry to provide adapted energy to the exciter, simultaneously generating broadband and narrowband infrared radiation through the excited body under two different physical mechanisms. Narrowband infrared radiation is excited by energy level transitions in graphite or graphene driven by an alternating electromagnetic field; this type of infrared radiation corresponds to a fixed wavelength, which is a characteristic spectral line of graphene. Broadband infrared radiation is infrared thermal radiation generated by eddy currents doing work under the same alternating electromagnetic field. Therefore, compared to existing methods that only rely on the common conductor properties of materials to generate infrared radiation, the excitation device proposed in this application has lower temperature rise and a wider range of applications, such as irradiation of biochemical materials and safer biomedical irradiation.

[0036] Figure 1 This is a schematic diagram of the excitation device in one embodiment of the present invention. Figure 1 As shown, the excitation device for converting electromagnetic waves into infrared radiation proposed in this application includes: an antenna 110, a conditioning circuit 120, and an exciter 130. The antenna 110 can be used to collect electromagnetic waves from the environment, and the conditioning circuit 120 can be used to receive the electromagnetic waves collected by the antenna 110 and convert them into an electromagnetic excitation signal adapted to the exciter 130.

[0037] As an example, such as Figure 1 As shown, to facilitate design, processing, and production processes, the electromagnetic excitation unit 131 in the antenna 110, conditioning circuit 120, and exciter 130 of this application can adopt a planar structure suitable for printing processes, meaning that the antenna 110, conditioning circuit 120, and electromagnetic excitation unit 131 can be fabricated on a printed circuit board (such as a flexible printed circuit board). This planar design not only effectively reduces costs but also lowers process complexity. The aforementioned planar design of the excitation device on a printed circuit board is merely an example; the shape of the excitation device in this invention is not limited to this.

[0038] More specifically, this application utilizes antenna 110 to efficiently collect electromagnetic wave energy from the space environment, thereby providing electromagnetic excitation energy for the excitation device. This electromagnetic wave energy may originate from natural electromagnetic wave signals, such as radio waves or microwaves, or from various man-made high-frequency and microwave radiations, such as broadcasting, wireless communication cellular networks, and WIFI in homes and offices. Moreover, this electromagnetic wave energy can be actively emitted when the excitation device is operating, or it can be electromagnetic waves from external systems. The conditioning circuit 120 can condition and match the electromagnetic wave energy collected by antenna 110 into an electromagnetic excitation signal that is easy to drive the exciter 130, so as to electromagnetically excite the exciter 130 (for example, when the coil is used as the electromagnetic excitation unit 131, the conditioning circuit can condition the electromagnetic wave energy into the alternating current required by the coil).

[0039] As an example, antenna 110 could be a dual-polarized antenna (e.g., a dipole antenna), such as... Figure 2 As shown, the two feed ports in the dual-polarized antenna are connected to different locations in the conditioning circuit 120. The antenna 110 used to collect electromagnetic wave energy in this application can take various forms, such as a broadband antenna, and this application does not specifically limit the type of antenna. Furthermore, the conditioning circuit 120 can employ a ring hybrid circuit (i.e., a ring bridge), and this application does not specifically limit the type of conditioning circuit; any existing or self-designed conditioning circuit can be used.

[0040] Furthermore, within a specific electromagnetic wave frequency range, electromagnetic energy can resonate with the electric charge in a specific substance, thereby efficiently transferring energy to that substance and stimulating infrared radiation. Based on this concept, this application proposes an exciter 130 capable of simultaneously generating two types of infrared radiation. Figure 3 As shown, the exciter 130 in this application may include an electromagnetic excitation unit 131 and an excited body 133. The electromagnetic excitation unit 131 can be used to receive an electromagnetic excitation signal from the conditioning circuit 120 and generate an alternating electromagnetic field based on the electromagnetic excitation signal. The excited body 133 can be excited to emit broadband infrared radiation and narrowband infrared radiation under the action of the alternating electromagnetic field. Therefore, the exciter 130 is used to receive the electromagnetic excitation signal and input the electromagnetic excitation signal into the electromagnetic excitation unit to generate an alternating electromagnetic field, thereby causing the excited body 133 to generate broadband infrared radiation and narrowband infrared radiation through the alternating electromagnetic field.

[0041] The electromagnetic excitation unit 131, acting as the load inlet for alternating electromagnetic energy, generates an alternating electromagnetic field within and around itself after external energy is injected, thereby applying electromagnetic energy excitation to the excited body 133. Furthermore, the excited body 133 needs to be within the alternating electromagnetic field generated by the electromagnetic excitation unit 131 to be excited by electromagnetic energy and generate infrared radiation. However, since the magnetic induction intensity varies at different locations within the alternating electromagnetic field, to ensure the excitation of the alternating electromagnetic field fully affects the excited body 133, the excited body 133 can be placed within the coverage area of ​​the alternating electromagnetic field generated by the electromagnetic excitation unit 131. For example, the excited body 133 can be placed at the center of the electromagnetic excitation unit 131 to achieve better infrared radiation. Because the excited body 133 contains magnetostrictive material, which is a soft magnetic material, placing the excited body 133 in an area with strong magnetic induction density will also significantly change the inductance of the electromagnetic excitation unit 131.

[0042] As an example, the electromagnetic excitation unit 131 can be an electromagnetic coil (in which case the electromagnetic excitation signal is an alternating current signal), an electromagnet, a transformer, or a radio transmitter, etc. For example, an alternating electromagnetic field can be generated by electromagnetic induction and external current through the electromagnetic coil. This application does not limit the specific type of the electromagnetic excitation unit 131. Taking an electromagnetic coil as the electromagnetic excitation unit 131 as an example, an existing electromagnetic coil can be used, or a self-designed electromagnetic coil with a closed geometric shape can be used. For example, the electromagnetic coil can be a planar coil or a three-dimensional coil. For example, the shape of the electromagnetic coil can be circular, elliptical, or polygonal. This application does not specifically limit the shape and style of the electromagnetic coil. In addition, if the electromagnetic excitation unit 131 is an electromagnetic coil, the excited body 133 can be placed within the magnetic field coverage of the electromagnetic coil to electromagnetically excite the excited body 133.

[0043] In this application, the excited body 133 can be used to generate broadband infrared radiation and narrowband infrared radiation under the action of an alternating electromagnetic field. Broadband infrared radiation is infrared radiation generated by the work done by eddy currents in the conductor by the alternating electromagnetic field, which generates heat and is a common characteristic of conductors. Narrowband infrared radiation is generated by the excited body 133 proposed in this application, which is based on the mechanical energy transferred to graphite or graphene by the follow-up deformation of the magnetostrictive material, causing energy level transitions.

[0044] As an example, the excited body 133 can be a composite material containing a magnetostrictive material and graphite, or it can be a composite material containing a magnetostrictive material and graphene. That is, the excited body 133 is a composite material containing a first functional material and a second functional material, where the first functional material is a magnetostrictive material and the second functional material is graphite or graphene. The first and second functional materials can be mixed in a predetermined ratio. Magnetostrictive materials are materials capable of converting electromagnetic energy into mechanical energy. In this application, the magnetostrictive material used to prepare the excited body 133 can be a nickel-based alloy, a manganese-based alloy, an iron-based alloy, or a ferrite, etc. This invention is not limited to these. Moreover, the mixing ratio of the magnetostrictive material and graphene (or graphite) can vary depending on the magnetostrictive material used. The mixing ratio can be set to achieve the simultaneous generation of broadband infrared radiation and narrowband infrared radiation.

[0045] More specifically, to overcome the problems existing in infrared radiation generated by current methods, this application creatively designs an excited body 133 for simultaneously generating broadband infrared radiation and narrowband infrared radiation, such as... Figure 4As shown, the generation method is as follows: Under the excitation of an applied alternating electromagnetic field, due to the conductivity of the excited body 133, a follower eddy current can be generated based on the conductor's commonality, thereby enabling the excited body 133 to generate broadband infrared radiation through thermal effect. Here, the follower eddy current refers to the eddy current changing with the alternation of the electromagnetic field. Under the excitation of an applied alternating electromagnetic field, the magnetostrictive material in the excited body 133 will undergo magnetostrictive deformation such as elongation or shortening in the magnetization direction or perpendicular direction based on the magnetostrictive property (i.e., the magnetostrictive material generates microscopic deformation in the particle structure). Based on the energy transfer mechanism, this deformation can be transferred to graphite or graphene, causing the six-carbon ring planar honeycomb structure of graphite or graphene to be mechanically stretched and squeezed alternately, thereby causing some C-C bonds in graphite or graphene to undergo energy level transitions, generating narrowband infrared radiation. Considering the constantly changing nature of alternating electromagnetic fields in time and space, the deformation of magnetostrictive materials under the influence of alternating electromagnetic fields can change according to the excitation. Therefore, the deformation of magnetostrictive materials under alternating electromagnetic fields can be called follower deformation, meaning that the deformation of the magnetostrictive material moves with the alternating change of the electromagnetic field. Moreover, the compression and stretching effects generated on graphite or graphene based on follower deformation are also alternating. That is, as time progresses, follower deformation continuously generates alternating compression and stretching effects on graphite or graphene according to the period of follower deformation. According to the multiple excitation steps involved in narrowband infrared radiation, the period of alternating current is the period of alternating electromagnetic field, which is also the period of reciprocating motion of magnetostriction, and also the period of compression and stretching of graphite or graphene.

[0046] In some embodiments of this invention, the excited body 133 can be in the form of a solid block, solid particles, or an aqueous / oil-based form that can solidify. The solid state is its functional form, simultaneously generating broadband and narrowband infrared radiation. In this case, the excited body 133 can be of any shape, and this invention is not limited to this. For example, when the excited body 133 is a solid block, it can be obtained by simply mixing particles of a first functional material and particles of a second functional material and pressing the mixed particles. Alternatively, after mixing the particles of the first and second functional materials, a gel or other adhesive material can be used to form the mixed material into a block. When the excited body 133 is a solid particle, the first and second functional materials can be simply mixed and stacked. Alternatively, particles of magnetostrictive material and graphene particles (or graphite particles) can be mixed, so that each solid particle contains both the first and second functional materials. In addition to magnetostrictive materials and graphene (or graphite), the excited body 133 may also contain other materials as auxiliary materials to adjust the mechanical, physical, chemical and / or electrical properties of the excited body 133, such as conductive materials or adhesive materials such as gels (materials in the excited body 133 other than the first functional material and the second functional material can be collectively referred to as the third material). This utility model does not specifically limit them.

[0047] Furthermore, to facilitate the mixing of the first functional material and the second functional material, both the first and second functional materials used to prepare the excited body 133 can be in powder form, and the particle size of the magnetostrictive material is comparable to that of graphene (or graphite). Here, the phrase "the particle size of the magnetostrictive material is comparable to that of graphene (or graphite)" mentioned in this application refers to the particle sizes of both being within a specific range, for example, both being below the micrometer level. The particle sizes of the magnetostrictive material and graphene (or graphite) mentioned above are merely examples, and this application does not specifically limit the particle size and shape. Furthermore, this application does not specifically limit the morphology (which can be powder, aqueous dispersion, or oily dispersion, etc.) of the first and second functional materials used to prepare the excited body 133; the above are merely examples.

[0048] Furthermore, this application does not specifically limit the mixing method of magnetostrictive material and graphene (or graphite). Existing solid material mixing techniques can be used, such as mechanical stirring mixing, wet mixing (e.g., using volatile solvents to prepare a mixture of magnetostrictive material and graphene (or graphite), and drying it to obtain a solid energy conversion structure), and chemical grafting, etc. Self-designed or improved methods can also be used. Furthermore, the magnetostrictive material and graphene (or graphite) in the excited body 133 need to be in close contact to achieve the transfer of mechanical energy generated by the magnetostrictive material to the graphene (or graphite). For example, the relatively independent magnetostrictive material and graphene (or graphene) can have a certain density to achieve energy transfer through alternating compression and stretching between powder particles. For instance, the composite material achieves energy transfer through a third material located between the first functional material and the second functional material, thus achieving energy transfer through deformation. Alternatively, there can be intermolecular interactions between the magnetostrictive material and graphene (or graphite) in the excited body 133, with energy transfer achieved through compression and stretching via these intermolecular interactions. These intermolecular interactions between the magnetostrictive material and graphene (or graphite) molecules can include chemical bonds and secondary bonds (secondary bonds include hydrogen bonds, van der Waals forces, and electrostatic Coulomb forces, etc.). In addition, the excited body 133 can be placed in a container without electromagnetic shielding, or other means of containing, supporting or fixing it to keep it in a suitable functional position. This application does not specifically limit the placement method of the excited body 133.

[0049] In some embodiments of this invention, since narrowband infrared radiation is generated when energy level transitions occur in the excited body 133, the spectral lines corresponding to narrowband infrared radiation can be considered as characteristic spectral lines of graphene or graphite; while the spectral lines corresponding to broadband infrared radiation are approximately similar to the spectral lines of blackbody radiation (here, it only means that the spectral lines of broadband infrared radiation are similar in shape to those of blackbody radiation). Furthermore, the spectral lines corresponding to both narrowband and broadband infrared radiation are emission lines of the optical spectrum. In addition, the spectral lines corresponding to broadband infrared radiation are in the infrared band, while the spectral lines corresponding to narrowband infrared radiation are in the far-infrared band.

[0050] As an example, based on the aforementioned mechanism for generating infrared radiation, the excitation device of this application can realize multiple energy excitation and conversion: the antenna 110 collects electromagnetic wave energy in the environment, the conditioning circuit 120 converts the electromagnetic wave energy into an electromagnetic excitation signal adapted to the electromagnetic excitation unit 131, the electromagnetic excitation unit 131 can convert the input energy into an alternating electromagnetic field, the first functional material (magnetostrictive material) in the excited body 133 of this application is used to convert electromagnetic energy into mechanical energy, and the second functional material (graphite or graphene) is used to convert the mechanical energy transmitted from the first functional material into infrared radiation (including the conversion of mechanical energy into thermal energy and transition energy). Therefore, the broadband radiation and narrowband radiation mentioned in this application are both generated by graphite or graphene.

[0051] The aforementioned method of generating narrowband infrared radiation is derived from physicochemical principles, and its verification results can be obtained through Fourier spectrometry, liquid nitrogen cooling sensors, or optical focusing. Specifically, Figure 5 An infrared radiation spectrum (vertical axis is a relative value) was obtained by detecting the infrared radiation generated by the excitation device of this application using a Fourier spectrometer. Under the excitation of alternating electromagnetic energy, the infrared radiation generated by the excitation device of this application has special characteristics, such as... Figure 5 As shown, at 1600cm -1 A narrow-band emission line is superimposed on the blackbody-like radiation spectral lines on both sides. According to research, this is the G peak of the graphene infrared radiation spectrum, with a wavenumber of 1580 cm⁻¹. -1 Furthermore, the radiation energy intensity of the emission spectral lines in this narrow band is relatively high. Moreover, in Figure 3 In the spectral lines shown, the linewidth of narrowband infrared radiation is much smaller than that of broadband infrared radiation, and its overall radiative power is also much smaller than that of broadband infrared radiation.

[0052] This application proposes an excitation device for converting electromagnetic waves in the environment into infrared radiation. The device collects electromagnetic wave energy from the environment via an antenna, and then uses a conditioning circuit to adjust the energy into an electromagnetic excitation signal that matches the exciter. This allows the exciter to simultaneously generate two types of infrared radiation under the influence of an alternating electromagnetic field: broadband infrared radiation and narrowband infrared radiation based on energy level transitions. This excitation device not only enables the generation of safe and low-temperature-rise infrared radiation from an excited body capable of converting alternating electromagnetic energy into infrared radiation, but also has broad application prospects in fields such as irradiation of biochemical materials and safer biomedical irradiation.

[0053] Those skilled in the art will understand that the exemplary components, systems, and methods described in conjunction with the embodiments disclosed herein can be implemented in hardware, software, or a combination of both. Whether implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this invention. When implemented in hardware, it can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this invention are programs or code segments used to perform the desired tasks. The programs or code segments can be stored in a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried on a carrier wave.

[0054] It should be clarified that this utility model is not limited to the specific configurations and processes described above and shown in the figures. In this utility model, features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, and / or combined with or in place of features of other embodiments.

[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. For those skilled in the art, various modifications and variations can be made to the embodiments of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An excitation device for converting electromagnetic waves in an environment into infrared radiation, characterized in that, include: Antennas are used to collect electromagnetic waves from the environment; A conditioning circuit is used to receive electromagnetic waves collected by the antenna and convert the electromagnetic waves into electromagnetic excitation signals adapted to the exciter. An exciter includes an electromagnetic excitation unit and an excited body. The exciter is used to receive the electromagnetic excitation signal and input the electromagnetic excitation signal into the electromagnetic excitation unit to generate an alternating electromagnetic field, thereby causing the excited body to generate broadband infrared radiation and narrowband infrared radiation through the alternating electromagnetic field. The excited body is a solid composite material containing either graphite or graphene and a magnetostrictive material. The magnetostrictive material can undergo follow-up deformation under the action of an alternating electromagnetic field. The graphite or graphene can undergo energy level transitions under the alternating action of compression and stretching generated by the follow-up deformation. The narrowband infrared radiation is the infrared radiation generated by the energy level transition.

2. The excitation device of claim 1, wherein The antenna, the conditioning circuit, and the electromagnetic excitation unit are all planar structures fabricated using flexible printed circuit board technology.

3. The excitation device of claim 1, wherein The antenna is a dipole antenna.

4. The excitation device of claim 1, wherein The conditioning circuit is a ring hybrid circuit.

5. The excitation device of claim 1, wherein The electromagnetic excitation unit is an electromagnetic coil, and the electromagnetic excitation signal is an alternating current; the excited body is used to be placed within the coverage area of ​​the alternating electromagnetic field of the electromagnetic coil.

6. The excitation device of claim 1, wherein The broadband infrared radiation is thermal radiation generated by the work done by eddy currents generated on graphite or graphene under the action of an alternating electromagnetic field.

7. The excitation device of claim 1, wherein The spectral linewidth of broadband infrared radiation is greater than that of narrowband infrared radiation, and there is some overlap between the corresponding bands of broadband infrared radiation and narrowband infrared radiation.

8. The excitation device of claim 1, wherein The excited body is a solid block or solid particles.

9. The excitation device of claim 1, wherein The excited body is a solid composite material containing graphene and magnetostrictive material. The solid composite material achieves energy transfer through dynamic deformation by close contact between graphene and magnetostrictive material, thereby causing energy level transition.

10. The excitation device of claim 9, wherein The graphene and magnetostrictive material in this solid composite material are in powder form, and the particle size of the graphene and magnetostrictive material is below the micrometer level.

Images