Spoiler assembly, antenna system and method for suppressing electromagnetic waves

Abstract

The invention relates to a spoiler assembly, an antenna system and a method for suppressing electromagnetic waves. The spoiler assembly includes a plurality of electromagnetic resonant structures and a dielectric material. The plurality of electromagnetic resonant structures suppress electromagnetic waves traveling through the plurality of electromagnetic resonant structures. The dielectric material includes a plurality of electromagnetic resonant structures.

Description

Technical Field

[0001] The present disclosure generally relates to antenna systems and, more particularly, to isolating antennas and antenna systems using a baffle assembly. Background Art

[0002] Satellite systems are used in aircraft to provide communication. Satellite communication systems used in aircraft operate at different frequencies. For example, a Ku-band satellite system can operate at a radio frequency of 12 GHz to 18 GHz. A Ka-band satellite system can operate at a radio frequency of 26.5 GHz to 40 GHz.

[0003] Satellite communication systems include satellite antenna systems that can be used for various types of communication in aircraft. For example, the satellite antenna system of a commercial aircraft can be used to provide in-flight connectivity. The satellite antenna system is installed on top of a commercial aircraft. This connectivity can be used to exchange information for operating the commercial aircraft. In addition, this connectivity can also be used for in-flight entertainment, voice calls, Internet connectivity, or data communication for passengers on a commercial aircraft. By using different frequencies, there can be more than two satellite antennas in a satellite antenna system. Summary of the Invention

[0004] Embodiments of the present disclosure provide a baffle assembly that includes a plurality of electromagnetic resonant structures and a dielectric material. The plurality of electromagnetic resonant structures suppress electromagnetic waves traveling through the plurality of electromagnetic resonant structures. The dielectric material surrounds the plurality of electromagnetic resonant structures.

[0005] Another embodiment of the present disclosure provides an antenna system that includes a first antenna, a second antenna, and a baffle assembly. The baffle assembly has a first end and a second end. The first antenna is adjacent to the first end, and the second antenna is adjacent to the second end. The baffle assembly includes a plurality of electromagnetic resonant structures and a dielectric material. The plurality of electromagnetic resonant structures suppress electromagnetic waves traveling from the first antenna through the plurality of electromagnetic resonant structures to the second antenna. The dielectric material surrounds the plurality of electromagnetic resonant structures.

[0006] Yet another embodiment of the present disclosure provides a baffle assembly that includes a plurality of inductive and capacitive electromagnetic resonant structures and a dielectric material. The plurality of inductive and capacitive electromagnetic resonant structures suppress electromagnetic energy traveling from a first end of the baffle assembly in a propagation direction to a second end of the baffle assembly, thereby electromagnetically isolating the second end from the first end. The dielectric material surrounds the plurality of inductive and capacitive electromagnetic resonant structures.

[0007] Yet another embodiment of the present disclosure provides a method for suppressing electromagnetic waves. Electromagnetic waves are received from a first antenna at a first end of a baffle assembly. Electromagnetic waves traveling through a plurality of electromagnetic resonant structures in the baffle assembly toward a second antenna at a second end of the baffle assembly are suppressed.

[0008] Features and functions can be implemented independently in various embodiments of the present disclosure or can be combined in other embodiments, where further details can be seen with reference to the following description and the drawings. Description of the Drawings

[0009] Novel features are set forth in the appended claims that are regarded as characteristics of the exemplary embodiments. However, the exemplary embodiments, as well as the preferred mode of use, its further objects and features, will be best understood by reference to the following detailed description of the exemplary embodiments of the present disclosure when read in conjunction with the drawings, in which:

[0010] Figure 1 is a graphical representation of an aircraft in communication with a satellite according to an exemplary embodiment;

[0011] Figure 2 is a diagrammatic illustration of a communication environment according to an exemplary embodiment;

[0012] Figure 3 is an illustration of an antenna system according to an exemplary embodiment;

[0013] Figure 4 is an illustration of a cross-sectional view of an antenna system according to an exemplary embodiment;

[0014] Figure 5 is an illustration of an electromagnetic resonance structure in a spoiler assembly according to an exemplary embodiment;

[0015] Figure 6 is another illustration of an electromagnetic resonance structure in a spoiler assembly according to an exemplary embodiment;

[0016] Figure 7 is yet another illustration of an electromagnetic resonance structure in a spoiler assembly according to an exemplary embodiment;

[0017] Figure 8 is yet another illustration of an electromagnetic resonance structure in a spoiler assembly according to an exemplary embodiment;

[0018] Figure 9 is yet another illustration of an electromagnetic resonance structure in a spoiler assembly according to an exemplary embodiment;

[0019] Figure 10 is an illustration of a spoiler assembly according to an exemplary embodiment;

[0020] Figure 11 is an illustration of the suppression of electromagnetic waves according to an exemplary embodiment;

[0021] Figure 12A diagram of a transmission isolation curve of a choke plate assembly according to an exemplary embodiment, the choke plate assembly including a strip as an electromagnetic resonant structure;

[0022] Figure 13 Another diagram of a transmission isolation curve of a choke plate assembly according to an exemplary embodiment, the choke plate assembly including a strip as an electromagnetic resonant structure;

[0023] Figure 14 A diagram of a flowchart of a process for suppressing electromagnetic waves according to an exemplary embodiment;

[0024] Figure 15 A diagram of a block diagram of an aircraft manufacturing and maintenance method according to an exemplary embodiment; and

[0025] Figure 16 A diagram of a block diagram of an aircraft in which exemplary embodiments can be implemented. Detailed Description

[0026] Exemplary embodiments recognize and take into account one or more different considerations as described herein. For example, radio frequency (RF) design deficiencies exist in satellite antenna systems having more than two satellite antennas mounted on top of a commercial aircraft. These antenna systems have a large coverage area on the aircraft.

[0027] Therefore, the satellite antennas in these systems should be configured such that the satellite antennas use the minimum surface area feasible on a commercial aircraft. With this configuration, these satellite antennas are very close to each other. The physical location of the antennas creates a situation where the satellite antennas can be strongly coupled to each other. In the operation of the satellite antennas, this coupling is an undesirable situation.

[0028] When a pair of satellite antennas interact with each other in an undesirable manner, the performance of each satellite antenna degrades. This degradation occurs even when the satellite antennas operate in different frequency bands.

[0029] A satellite antenna is capable of radiating radio waves because the satellite antenna is excited by an oscillator that generates the frequencies required for long-distance satellite communication with which it interacts to exchange information. No oscillator is perfect in the sense that when the oscillator is connected to the satellite antenna, the oscillator will broadcast or receive only a single frequency. During operation, the oscillator generates sidebands. These sidebands can be coupled to adjacent satellite antennas.

[0030] To mitigate this undesirable interaction between adjacent antennas, radio frequency (RF) components, such as a choke plate assembly, can be used. In a satellite antenna system, the choke plate assembly is located between adjacent antennas.

[0031] The baffle assembly can be a metallic component that includes a structure having a shape and texture with dimensions and spacing relative to each other such that electromagnetic (EM) energy crossing from one antenna to another is blocked. The energy is blocked due to coupling interactions generated by the baffle assembly as the electromagnetic energy propagates through the baffle assembly. The electromagnetic energy can be reradiated away from some of the initial direction in which the electromagnetic energy travels toward an adjacent antenna.

[0032] In addition, it is desirable for the profile or shape of the communication satellite system to be conformal to the outer mold line (OML) of a commercial aircraft or other aircraft. This type of design for the communication satellite system reduces aerodynamic drag. Accordingly, this type of design eliminates the need for radomes, fairings, or other structures that cover satellite antennas. The use of a radome or fairing can cause the satellite communication system to protrude more than six inches above the outer mold line of a commercial aircraft.

[0033] It is more desirable for the antennas and baffle assemblies to be conformal to the outer mold line of the fuselage of a commercial aircraft. Otherwise, the satellite antennas and baffle assemblies protrude into the airflow in a manner that degrades the aerodynamic performance of the commercial aircraft. This degradation of aerodynamic performance can reduce fuel efficiency and increase the cost of operating the commercial aircraft.

[0034] In addition, the design of the baffle assemblies includes structures that extend from the outer mold line above a commercial aircraft. Accordingly, these structures can be exposed to the environment and degrade aerodynamic performance, which is undesirable.

[0035] The current designs of these baffle assemblies can also accumulate contaminants. These contaminants can include water, ice, insects, debris from bird strikes, and other undesirable debris. In addition, this exposure to contaminants can cause inconsistencies that affect the performance of the baffle assemblies.

[0036] Accordingly, exemplary embodiments provide methods, devices, and systems for suppressing electromagnetic waves. Suppression can include at least one of the following: blocking electromagnetic waves, reflecting electromagnetic waves away from an initial direction of travel of the electromagnetic waves, and dissipating electromagnetic energy in the electromagnetic waves.

[0037] When used with a list of items, the phrase "at least one" means that different combinations of one or more of the listed items can be used and only one of each item in the list may be required. In other words, "at least one" means that any combination of the items in the list and multiple items can be used, but not all of the items in the list are required. The items can be specific objects, things, or categories.

[0038] For example, but not limited to, "at least one of Project A, Project B, or Project C" may include Project A, Project A and Project B, or Project B. This example may also include Project A, Project B, and Project C, or Project B and Project C. Of course, any combination of these projects may exist. In some exemplary examples, "at least one" may be, for example but not limited to, two Project As; one Project B; and ten Project Cs; four Project Bs and seven Project Cs; or other suitable combinations.

[0039] In one exemplary example, a choke plate assembly includes a plurality of electromagnetic resonant structures and a dielectric material. As used herein, when used with a reference item, "a plurality of" means one or more items. For example, a plurality of electromagnetic resonant structures are one or more electromagnetic resonant structures.

[0040] The plurality of electromagnetic resonant structures suppress electromagnetic waves traveling through the plurality of electromagnetic resonant structures. The dielectric material surrounds the plurality of electromagnetic resonant structures. In different exemplary examples, the dielectric material may reduce the accumulation of contaminants. Additionally, the use of the dielectric material in conjunction with the design of the plurality of electromagnetic resonant structures may be configured such that the surface of the choke plate assembly is conformal or flush with at least one of the surface of an antenna or the outer mold line of a platform such as an aircraft. In yet another exemplary example, the dielectric material may be selected to be durable such that exposing the choke plate assembly to the environment does not degrade the choke plate assembly or its performance.

[0041] In an exemplary example, the suppression of electromagnetic waves may also be referred to as blocking electromagnetic waves. This suppression of electromagnetic waves may be used for a specific number of frequencies. The number of frequencies may be a single frequency, a non - continuous plurality of frequencies, or a frequency band having continuous frequencies.

[0042] In one exemplary example, the suppressed or blocked portion of the electromagnetic wave is the magnetic field component of the electromagnetic wave. In other words, the suppression in the form of radio frequency blocking cancels the magnetic field. In other words, a back - push occurs on the incident magnetic field of the electromagnetic field induced by the electromagnetic field.

[0043] Now referring to the drawings, and specifically referring to Figure 1 , a graphical representation of an aircraft in communication with a satellite according to an exemplary embodiment is depicted. In this exemplary example, a commercial aircraft 100 has wings 102 and 104 attached to a fuselage 106. The commercial aircraft 100 includes engines 108 attached to wing 102 and engines 110 attached to wing 104.

[0044] The fuselage 106 has a tail 112. Horizontal stabilizers 114, 116, and a vertical stabilizer 118 are attached to the tail 112 of the fuselage 106.

[0045] The commercial aircraft 100 is an example of an aircraft that can implement the satellite antenna system 120 according to an exemplary embodiment. As described, the satellite antenna system 120 includes an antenna 131 and a spoiler assembly 132 on the fuselage 106 of the commercial aircraft 100. The antenna 131 can be more than two antennas. In these examples, the antenna 131 and the spoiler assembly 132 are held by a support structure 121. The support structure can be, for example, an aerodynamic fairing, a radome, an antenna cover, or some other support structure in which these components can be located.

[0046] In this exemplary example, the spoiler assembly 132 is configured to reduce or prevent electromagnetic waves from propagating from one antenna in the satellite antenna system 120 to another antenna. The spoiler assembly 132 can suppress electromagnetic waves that travel from one antenna through the spoiler assembly 132 to another antenna. In this way, the spoiler assembly 132 can reduce interference between the antennas in the satellite antenna system 120.

[0047] Furthermore, in this exemplary example, the spoiler assembly 132 is constructed to be durable. In other words, the materials used in the spoiler assembly 132 can withstand the environment in which the commercial aircraft 100 operates.

[0048] In addition, the spoiler assembly includes a dielectric material that is selected to avoid the collection of unwanted materials in the spoiler assembly 132. For example, the dielectric material can be selected and formed such that the spoiler assembly 132 does not accumulate contaminants such as water, moisture, ice, dust, debris, or other contaminants.

[0049] Moreover, in this example, the spoiler assembly 132 is flush with the surface of the support structure 121 in which the antenna 131 and the spoiler assembly 132 are located. This design can provide increased aerodynamic characteristics, such as an aerodynamic airflow.

[0050] Accordingly, the spoiler assembly 132 can suppress electromagnetic waves such that interference between the antennas 131 does not occur. In other words, in one example, the spoiler assembly 132 can provide a desired level of isolation, where the spoiler assembly 132 is conformal with the outer mold line of the fuselage 106 and provides a desired isolation of electromagnetic waves to maintain adjacent antenna isolation. In addition, the spoiler assembly 132 can also provide at least one of durability, reduced accumulation of contaminants, and increased aerodynamic characteristics. Therefore, the spoiler assembly 132 can provide optimal antenna function and signal fidelity.

[0051] Now refer to Figure 2 , a diagram depicting a block diagram of a communication environment according to an exemplary embodiment. In this exemplary example, the communication environment 200 includes components that can be implemented in hardware, such as, for example, the hardware shown for the satellite antenna system 120 in Figure 1 .

[0052] In this exemplary example, the antenna system 202 can be connected to the platform 204. When a component is "connected" to another component, the connection is a physical connection. For example, a first component can be considered to be physically connected to a second component by being fixed to the second component, bonded to the second component, mounted to the second component, welded to the second component, fastened to the second component, and connected to the second component in at least one of some other suitable ways. The first component can also be connected to the second component using a third component. The first component can also be considered to be physically connected to the second component by being formed as part of the second component, an extension of the second component, or both. In some examples, the first component can be physically connected to the second component by being located within the second component.

[0053] In these examples, the antenna system 202 can be a satellite antenna system, a broadcast antenna system, a directional antenna system, and other types of antenna systems. The platform 204 can take a variety of different forms. For example, the platform 204 can be selected from the group including the following: a mobile platform, a fixed platform, a land-based structure, a water-based structure, a space-based structure, an aircraft, a commercial aircraft, a rotary-wing aircraft, a tilt-rotor aircraft, a tilt-wing aircraft, a vertical takeoff and landing aircraft, an electric vertical takeoff and landing vehicle, a personal air vehicle, a surface ship, a tank, a personnel carrier, a train, a spacecraft, a space station, a satellite, a submarine, an automobile, a power plant, a bridge, a dam, a house, a manufacturing facility, a building, and other suitable platforms that can be used with the antenna system 202.

[0054] In this example, the spoiler assembly 206 is located in the antenna system 202. An antenna 250 is present in the antenna system 202. The antenna 250 can include a first antenna 251 and a second antenna 252.

[0055] As shown, the spoiler assembly 206 includes an electromagnetic resonant structure 208 and a dielectric material 210. A plurality of electromagnetic resonant structures 208 suppress electromagnetic waves 212 traveling through the plurality of electromagnetic resonant structures 208.

[0056] In one exemplary example, the plurality of electromagnetic resonant structures 208 suppress electromagnetic waves 212 having a plurality of frequencies 214. In other words, the suppression can be directed at one or more of the frequencies 214 in the electromagnetic waves 212. These frequencies can be continuous or non-continuous.

[0057] The suppression of the electromagnetic wave 212 can be carried out by at least one of blocking the electromagnetic wave 212, reflecting the electromagnetic wave 212 away from the initial traveling direction of the electromagnetic wave 212, and dissipating the electromagnetic energy 216 in the electromagnetic wave 212. In this example, the plurality of electromagnetic resonant structures 208 can have inductive and capacitive characteristics 209 that reflect the electromagnetic wave 212. Utilizing these properties, the plurality of electromagnetic resonant structures 208 can also be referred to as a plurality of inductive and capacitive electromagnetic resonant structures 218.

[0058] In addition, in this example, the plurality of electromagnetic resonant structures 208 can also have resistive characteristics 207. When these waves travel through the plurality of electromagnetic resonant structures 208, these resistive characteristics 207 can operate to dissipate the electromagnetic energy 216 in the electromagnetic wave 212.

[0059] The suppression of the electromagnetic wave 212 by the plurality of electromagnetic resonant structures 208 can be based on a plurality of parameters 215 of the electromagnetic resonant structures 208. The plurality of parameters 215 are selected in this example to suppress the electromagnetic wave 212. The plurality of parameters 215 are selected from at least one of the materials, dimensions, shapes, pitches, positions, and other parameters of the plurality of electromagnetic resonant structures 208. The plurality of electromagnetic resonant structures 208 are selected from at least one of columns, walls, slats, rings, conical cylinders, pyramids, holes, slots, spheres, strips, and some other suitable shapes. In one example, the plurality of electromagnetic resonant structures 208 can be a single structure, such as a strip.

[0060] In these examples, some of the electromagnetic resonant structures can be composed of materials, dimensions, shapes, or pitches different from those of other electromagnetic resonant structures. For example, a group of electromagnetic resonant structures 208 can have characteristics different from those of another group of electromagnetic resonant structures 208. In this example, as used herein, a "group" with an item means one or more items. For example, a group of electromagnetic resonant structures is one or more electromagnetic resonant structures.

[0061] The dielectric material 210 surrounds (encloses) the plurality of electromagnetic resonant structures 208. In this example, the dielectric material 210 can be selected as a durable material. In other words, the amount of the dielectric material 210 can be selected to be able to withstand the environmental conditions encountered by the baffle assembly 206 during the use of the antenna system 202 with the platform 204. In an exemplary example, the dielectric material 210 can be selected from at least one of foams, solid resins, and some other suitable materials.

[0062] When selecting a material for the dielectric material 210, the dielectric constant of the material can be considered. In these examples, the closer the dielectric constant is to 1.0, the more desirable it is. In one exemplary example, the dielectric constant of the dielectric material is from about 0.8 to about 1.8. In other examples, depending on the desired characteristics of the dielectric material 210, other ranges of the dielectric constant can be used.

[0063] In addition, the material and configuration of the dielectric material 210 can be selected to reduce the contaminants 220 accumulated on the baffle assembly 206. For example, the dielectric material 210 surrounds the electromagnetic resonant structure 208 in a manner that reduces the contaminants 220 accumulated by the electromagnetic resonant structure 208. These contaminants include at least one of water, ice, insects, debris from bird strikes, and other undesirable debris. In other words, the accumulation of water, moisture, debris, ice, or other contaminants can be reduced or prevented. In this way, the reduction of the contaminants 220 avoids the degradation of the performance of the baffle assembly 206. In addition, the reduction of the contaminants 220 can also be the reduction of the contaminants 220 that may affect or otherwise cause inconsistencies in the electromagnetic resonant structure 208.

[0064] As shown in the figure, the baffle assembly 206 further includes a baffle tray 224. In this example, a plurality of electromagnetic resonant structures 208 are connected to the baffle tray 224. The plurality of electromagnetic resonant structures 208 can be connected to the baffle tray 224 in a variety of different ways. For example, the plurality of electromagnetic resonant structures 208 can be formed as part of the baffle tray 224 or incorporated or otherwise connected to the baffle tray 224. For example, a workpiece can be machined to form the plurality of electromagnetic resonant structures 208 and the baffle tray 224 for the baffle assembly 206. In another example, other techniques such as molding or die casting can be used to form these components.

[0065] In one exemplary example, the plurality of electromagnetic resonant structures 208 suppress the electromagnetic waves 212 that travel from the first antenna 251 adjacent to the first end of the baffle assembly 206 through the plurality of electromagnetic resonant structures 208 to the second antenna 252 adjacent to the second end of the baffle assembly 206.

[0066] In addition, the shape of the dielectric material 210 surrounding the plurality of electromagnetic resonant structures 208 can be manufactured to provide the desired aerodynamic characteristics for the antenna system 202. For example, the baffle assembly 206 can be recessed, and the top surface of the baffle assembly 206 can be flush with the top surface of the support structure 230.

[0067] In this example, the support structure 230 is a physical structure in the antenna system 202 that holds different components in the antenna system 202. As described in this example, these components include the baffle assembly 206 and the plurality of antennas 250.

[0068] The support structure 230 can take a variety of different forms. For example, the support structure 230 can be an aircraft cowling, a radome, a fairing, a bubble on a building, or some other suitable type of support structure. In this example, the support structure 230 may not cover the components of the antenna system 202. In an exemplary example, the support structure 230 can be part of the platform 204 rather than an independent structure attached to the platform 204.

[0069] In another example, the spoiler assembly 206 can also include a skin layer 213. The skin layer 213 covers the plurality of electromagnetic resonant structures 208 and the dielectric material 210. Using this example, the skin layer 213 covers the electromagnetic resonant structures 208 and the dielectric material 210, and the spoiler assembly 206 having the skin layer 213 is flush with the top surface of the platform 204. In this example, the platform 204 can be an aircraft 205.

[0070] Thus, the spoiler assembly 206 can reduce interference between the antennas 250 in the antenna system 202 by suppressing the electromagnetic waves 212 to provide a desired level of isolation. In addition, the spoiler assembly 206 can have a surface flush with the antennas 250. In some exemplary examples, the entire antenna system is flush with the outer mold line of the platform 204 (such as an aircraft 205). In an exemplary example, the skin layer 213 can be located on top of the dielectric material 210 to make the spoiler assembly 206 flush with other components. In addition, the dielectric material 210 and (when used) the skin layer 213 can provide durability and reduce the collection of contaminants 220 within the spoiler assembly 206.

[0071] Figure 2 The illustration of the communication environment 200 in does not mean to imply physical or architectural limitations on which exemplary embodiments can be implemented. Other components can be used in addition to or instead of the components shown. Some components may be unnecessary. In addition, boxes are presented to show some functional components. When implemented in an exemplary embodiment, one or more of these boxes can be combined, divided, or combined and divided into different boxes.

[0072] For example, in addition to the first antenna 251 and the second antenna 252, there can be one or more antennas in the antennas 250. In addition, in addition to the spoiler assembly 206, there can be one or more spoiler assemblies. These additional spoiler assemblies can be positioned between the antennas 250 to suppress the electromagnetic waves that can travel through these spoiler assemblies. In yet another exemplary example, the antenna system 202 can have a single antenna instead of multiple antennas. Using this example, the spoiler assembly 206 can be positioned to suppress electromagnetic waves from a source external to the antenna system 202.

[0073] Next, refer to Figure 3 , which depicts a view of an antenna system according to an exemplary embodiment. In this example, a top view of the antenna system 300 is seen on the vehicle 305. The antenna system 300 is Figure 2 an example of an implementation of the antenna system 202 in Figure 2 . The vehicle 305 is

[0074] As depicted in this view, the antenna system 300 includes a receiver antenna 301, a transmitter antenna 302, and a choke plate assembly 303. These components can be seen from the top surface 304 of the vehicle 305. In this example, the choke plate assembly 303 is located between the receiver antenna 301 and the transmitter antenna 302.

[0075] Next, in Figure 4 , a view of a cross-sectional view of an antenna system according to an exemplary embodiment is depicted. In the exemplary example, the same reference numerals may be used in more than one drawing. This reuse of reference numerals in different drawings represents the same elements in different drawings.

[0076] In this drawing, a cross-sectional view of the antenna system 300 on the vehicle 305 taken along line 3-3 is shown. Different components in the choke plate assembly 303 can be seen in this view. As shown, the choke plate assembly 303 includes a choke plate tray 400, an electromagnetic resonant structure 401, a dielectric material 402, and a skin layer 403.

[0077] The choke plate tray 400 is a planar structure on which the electromagnetic resonant structure 401 is positioned. In this example, the electromagnetic resonant structure 401 is located in the cavity 461 of the choke plate tray 400 through the choke plate tray 400.

[0078] The electromagnetic resonant structure 401 is designed to suppress electromagnetic waves, such as radio frequency signals that can propagate between the receiver antenna 301 and the transmitter antenna 302. In this example, there are multiple types of electromagnetic resonant structures 401. As shown, type 1 431 is a triangular pyramid, type 2 432 is a columnar object, and type 3 433 is a ring. In other words, the electromagnetic resonant structures 401 do not have to have the same type, size, shape, and spacing.

[0079] The size of at least one of the choke plate tray 400 and the electromagnetic resonant structure 401 can depend on isolation requirements, such as the desired isolation between the antennas in this example.

[0080] In this example, the dielectric material 402 surrounds the electromagnetic resonant structure 401 and the choke plate tray 400 to the extent that these components are not exposed to the environment during operation of the antenna system 300. In other words, by surrounding these structures, the dielectric material 402 does not have to completely surround the components. Instead, the enclosure can protect the components from the environment in which the antenna system 300 is used.

[0081] When the vehicle 305 is an aircraft, the dielectric material 402 can be a flight-qualified low-dielectric constant dielectric filler. In this example, this means that the material or component will withstand aerodynamic flight or spaceflight. In one example, flight-qualified can mean that the material or component meets at least one of the manufacturing standards and government standards for aerodynamic flight or spaceflight.

[0082] In one exemplary example, the dielectric material 402 can take the form of a dielectric foam that fills the cavity 461. In this example, the location filled with this dielectric foam is the cavity 461, and its purpose is to prevent moisture and other contaminants from entering the cavity 461.

[0083] By using dielectric foam for the dielectric material 402, this material can be selected such that its dielectric constant approaches that of free space, which is normalized and equal to 1.0. For example, a suitable dielectric foam to use can have a relative dielectric constant of about 1.1 to about 1.8. When used in an aircraft, these dielectric foams can be flight-qualified.

[0084] In addition, the dielectric foam used allows traveling waves to enter the cavity 461 and strongly couple with the electromagnetic resonant structure 401 in the cavity 461 components. The dielectric foam also functions in a scaling and tuning capacitance environment. Since the relative dielectric constant of the foam plays a role in scaling and tuning, foam selection can be used to customize the operating bandwidth of the choke plate assembly 303. In addition, depending on the selection of the dielectric foam, the skin layer 403 may not be required.

[0085] In this example, the skin layer 403 is the top layer that covers other components in the choke plate assembly 303. In one exemplary example, the skin layer 403 can be a composite skin layer that provides protection from elements and can be conformal to the outer mold line of the fuselage when the vehicle 305 is an aircraft. In addition, when the vehicle 305 is an aircraft, the skin layer 403 can be a composite flight-qualified dielectric skin layer.

[0086] As described, the skin layer 403 makes the top surface of the choke plate assembly 303 flush with the top surfaces of the receiver antenna 301 and the transmitter antenna 302. Thus, in the case of these components with smooth or flush surfaces, improved aerodynamic performance occurs.

[0087] In addition, the cover layer 403 can also be selected to provide radio frequency tuning for the baffle assembly 303. For example, the thickness of the cover layer 403 can vary. In an exemplary example, the cover layer 403 can extend into the cavity 461 to provide tuning for suppressing electromagnetic waves.

[0088] In an exemplary example, the baffle tray and the plurality of electromagnetic resonant structures can be structures. These structures can be formed by at least one of machining, additive manufacturing, and three-dimensional printing. As described above, the plurality of electromagnetic resonant structures can take different forms depending on the type of isolation desired. In different exemplary examples, a plurality of different electromagnetic resonant structures can be used to suppress or block the magnetic field component in electromagnetic waves. Examples of these electromagnetic resonant structures are described below Figures 5 to 8 and depicted.

[0089] Now referring to Figure 5 , a diagram of the electromagnetic resonant structure in the baffle assembly according to an exemplary embodiment is depicted. In this example, the electromagnetic resonant structure 511 of the baffle assembly 500 is located between the monopole antenna receiver 501 and the monopole antenna transmitter 502. These structures are formed on the baffle tray 512.

[0090] In the depicted example, different types of electromagnetic resonant structures 511 are selected to suppress the electromagnetic waves that can travel through the baffle assembly 500. The traveling direction can be the direction of arrow 541 or arrow 542.

[0091] As depicted, the electromagnetic resonant structure 511 includes a strip 531 and a column 532. As depicted, the column 532 is located at either end of the strip 531. In this example, the strip 531 and the column 532 have a plurality of parameters that are selected to suppress electromagnetic waves. These parameters can be selected from at least one of the material, size, shape, pitch (the space between the peaks in the strip 531), and position of the electromagnetic resonant structure 511. These parameters of the strip 531 and the column 532 can all contribute to the tuning frequency and bandwidth isolation provided by the baffle assembly 500.

[0092] Next in Figure 6 , another diagram of the electromagnetic resonant structure in the baffle assembly according to an exemplary embodiment is depicted. In this example, the baffle assembly 600 is located between the monopole antenna receiver 601 and the monopole antenna transmitter 602.

[0093] In this example, the electromagnetic resonant structure 611 on the baffle tray 612 of the baffle assembly 600 includes a column 620, a strip 621, and an annulus 622. In this example, the different structures in the electromagnetic resonant structure 611 are designed to provide isolation between the monopole antenna receiver 601 and the monopole antenna transmitter 602. In this example, the column 620, the strip 621, and the annulus 622 have parameters that are selected to suppress the electromagnetic waves that can travel through the electromagnetic resonant structure 611 in the baffle assembly 600.

[0094] Turning Figure 7 , another illustration of the electromagnetic resonant structure in the baffle assembly is described according to an exemplary embodiment. In this example, the baffle assembly 700 is located between the monopole antenna receiver 701 and the monopole antenna transmitter 702.

[0095] In this example, the electromagnetic resonant structure 711 on the baffle tray 712 of the baffle assembly 700 includes holes and slots formed in the baffle tray 712. These holes and slots can be formed by drilling or machining the structure into the baffle tray 712. These holes and slots are designed to provide isolation between the monopole antenna receiver 701 and the monopole antenna transmitter 702. The holes and slots have a plurality of parameters that are selected to suppress the electromagnetic waves that can travel through the electromagnetic resonant structure 711 in the baffle assembly 700.

[0096] Next, referring to Figure 8 , another illustration of the electromagnetic resonant structure in the baffle assembly is described according to an exemplary embodiment. In this example, the baffle assembly 800 is located between the monopole antenna receiver 801 and the monopole antenna transmitter 802.

[0097] In this example, the electromagnetic resonant structure 811 on the baffle tray 812 of the baffle assembly 800 takes the form of spheres formed on the baffle tray 812. These spheres are designed to provide isolation between the monopole antenna receiver 801 and the monopole antenna transmitter 802. The plurality of parameters of these spheres are selected to suppress the electromagnetic waves that can travel through the electromagnetic resonant structure 811 in the baffle assembly 800.

[0098] Next, see Figure 9 , another illustration of the electromagnetic resonant structure in the baffle assembly is depicted according to an exemplary embodiment. In this example, the baffle assembly 900 is located between the monopole antenna receiver 901 and the monopole antenna transmitter 902.

[0099] In this example, the electromagnetic resonant structure 911 on the baffle tray 912 of the baffle assembly 900 takes the form of columns formed on the baffle tray 912. These columns are designed to provide isolation between the monopole antenna receiver 901 and the monopole antenna transmitter 902. Multiple parameters of these columns are selected to suppress electromagnetic waves that can travel through the electromagnetic resonant structure 911 in the baffle assembly 900. For example, these columns can have parameters that cause a resistive load. This resistive load can reduce or dissipate the uniformity of radio frequency waves.

[0100] Now referring to Figure 10 , a diagram of a baffle assembly according to an exemplary embodiment is depicted. In this example, a semi-exploded view of the baffle assembly 1000 is shown. In this view, the electromagnetic resonant structure 1011 on the baffle tray 1012 for the baffle assembly 1000 takes the form of strips on the baffle tray 1012. In this example, the electromagnetic resonant structure 1011 is a capacitive and inductive metal structure that can suppress electromagnetic waves by blocking electromagnetic waves and reflecting electromagnetic waves away from at least one of the initial travel directions of the electromagnetic waves.

[0101] Furthermore, in this example, the lossy magnetic material 1020 and the lossy carbon-loaded material 1021 are located between the electromagnetic resonant structure 1011 on the baffle tray 1012. These two materials can suppress electromagnetic waves by dissipating the energy in the electromagnetic waves traveling through these materials. The dissipation of energy can be caused by the resistive load induced by these materials on the electromagnetic waves.

[0102] The lossy magnetic material 1020 and the lossy carbon-loaded material 1021 can be selected materials that can be used for sidelobe suppression. For example, the lossy magnetic material 1020 can be a magnetic absorber for electromagnetic interference (EMI) suppression and a gasket component for isolation and radio frequency (RF) attenuation.

[0103] In one exemplary example, the lossy magnetic material 1020 is composed of a dielectric binder containing magnetic lossy inclusions. These lossy inclusions can be formed of at least one of iron powder, iron alloy powder, and ferrite powder.

[0104] In these examples, the lossy magnetic material can have a thickness ranging from about 0.02 inches to about 0.1 inches. Furthermore, the lossy magnetic material is soft enough to be cut. In addition, this lossy magnetic material can also be available in putty form for casting into specific cavities and forms.

[0105] The magnetic inclusions made of iron powder, iron alloy powder, or ferrite powder provide a radio frequency (RF) loss mechanism for the magnetic field component of the electromagnetic energy impinging thereon.

[0106] In addition, in this example, the lossy carbon loaded material 1021 is a volumetric material. The thickness of this material is from about 0.25 inches to several inches. The lossy carbon loaded material 1021 is a volumetric carrier having a parasitic coating formed from a carbon containing mixture. The volumetric carrier can be a reticulated open cell foam that is mostly air or a material for securing electrostatically sensitive electronic components, such as anti-static foam. In these examples, the lossy carbon loaded material 1021 can be soft and porous.

[0107] The material can be cut and bonded to the baffle tray 1012. The carbon in the lossy loaded carbon material 1021 provides a radio frequency (RF) loss mechanism for the electric field component of the electromagnetic energy impinging thereon.

[0108] Moreover, in this exploded view, the baffle assembly 1000 includes a dielectric material 1030 and a skin layer 1031. The dielectric material 1030 surrounds the electromagnetic resonant structure 1011 such that moisture, ice, debris, and other contaminants cannot reach the electromagnetic resonant structure 1011. In other words, this material protects the structure from the environment. Additionally, the skin layer 1031 also provides protection from the environment. Using these two materials can result in the top surface 1041 being aligned and flush with the top of the antenna in the antenna assembly. Additionally, these components can also result in the baffle assembly 1000 being aligned and flush with the surface of a platform, such as the fuselage of an aircraft.

[0109] Figures 3 to 10 The illustration of the baffle assembly in is an example of a baffle assembly, and these examples are not meant to limit the ways in which other baffle assemblies can be implemented. For example, in another implementation, the electromagnetic resonant structure can include a strip. In other exemplary examples, other types of structures and types of structures can be used for the electric resonant structure.

[0110] In addition, although not shown in these examples, a dielectric material that surrounds the electromagnetic resonant structure on the baffle tray is used. Additionally, there can also be a skin layer that covers the dielectric material and the electromagnetic resonant structure. Therefore, based on the selection of the electromagnetic resonant structure and the multiple parameters of the structure, the baffle assembly can be used and provide versatility in suppressing electromagnetic signals of different types of antennas.

[0111] Next, turning to Figure 11 , an illustration of electromagnetic wave suppression in accordance with an exemplary embodiment is depicted. In this example, an illustration of the coupling of the electromagnetic waves under suppression is shown in this figure.

[0112] As described, the baffle assembly 1100 is located between the monopole antenna receiver 1101 and the monopole antenna transmitter 1102. As depicted in this example, the electromagnetic resonant structure 1111 includes posts 1132 located at either end of a strip 1131.

[0113] In this exemplary example, the monopole antenna transmitter 1102 operates to transmit electromagnetic waves. The electromagnetic waves propagate along the propagation direction 1105. As depicted, the electric field intensity at different positions along the propagation direction is depicted by the contour lines 1150, where the intensity is represented in volts per meter (V / m). In this example, the contour lines 1150 represent the electric field lines.

[0114] In this example, the contour lines 1150 provide an understanding of the role played by the electromagnetic resonant structure 1111 in suppressing the electromagnetic field. In this example, the magnetic field inside and outside the figure orthogonal to each electric field contour line is tangent to the electromagnetic resonant structure 1111. In this example, the configuration of the electromagnetic resonant structure 1111 establishes a strong eddy current response according to Lenz's law. This response is the opposing magnetic field component and cancels the incident magnetic field.

[0115] In this example, the parameters of the strip 1131 include a periodic array, which is selected such that the wavelength period provides the radio frequency tuning required to achieve the desired isolation. In this example, the electric field lines represented by the contour lines 1150 depict the coupling between the electromagnetic resonant structures 1111. The electric field coupling (marginalization) is the capacitance introduced by the position and shape of the strip 1131.

[0116] The shape of these electromagnetic resonant structures controls the polarization of the metal elements. This shaping controls the capacitance experienced by the edge fields.

[0117] Furthermore, the position of these electromagnetic resonant structures 1111 below the composite skin (not shown) is a position parameter used when tuning the overall dimensions of the electromagnetic resonant structures 1111. The edge fields are most effective when they are not strongly coupled to the composite skin. The inherent inductance and capacitance of these structures affect the radio frequency energy. These are the two "circuit components" that define the resonant state.

[0118] Now referring to Figure 12 , a diagram depicting a graph of the transmission isolation of a choke plate assembly according to an exemplary embodiment is shown, the choke plate assembly including strips as electromagnetic resonant structures. In this example, the graph 1200 shows the reduction for electromagnetic waves at different frequencies. In this example, the x-axis 1210 represents the frequency in GHz, and the y-axis 1211 represents the measurement of the electromagnetic power in dB. In this example, the transmission can be S21, which represents the ratio of the received power to the transmitted power. In this case, the ratio is negative, indicating loss.

[0119] In this example, the line 1201 in the graph 1200 shows the reduction by Figure 11The isolation level provided by the baffle assembly 1100 with the strip 1131 therein. Line 1201 represents the connection that occurs with the baffle assembly 1100. This isolation in line 1201 can be compared with line 1202, in which the baffle assembly 1100 is absent and the two antennas are connected by a smooth metal surface. In this example, line 1201 is at 45 dB. In this example, direct coupling occurs without suppression.

[0120] In this example, the isolation increment 1203 represents the isolation difference between the two configurations. This difference represented by the isolation increment 1203 varies with frequency. Since the baffle can be tuned, this is controllable.

[0121] Now turning to Figure 13 , a diagram depicting a graph of transmission isolation of a baffle assembly according to an exemplary embodiment, the baffle assembly including a strip as an electromagnetic resonant structure. In this example, the graph 1300 shows the reduction for electromagnetic waves at different frequencies. In this example, the x-axis 1310 represents the frequency in GHz, and the y-axis 1311 represents the measurement of the electromagnetic wave in dB.

[0122] In this graph, line 1301 shows the isolation provided by the baffle assembly using multiple types of electromagnetic resonant structures.

[0123] Next turning to Figure 14 , a diagram depicting a flowchart of a process for suppressing electromagnetic waves according to an exemplary embodiment. In this example, the process can be implemented in a baffle assembly, such as Figure 2 the baffle assembly 206 shown in block form in Figures 3 to 10 . The process can also be implemented using different baffle assemblies shown in

[0124] The process begins with receiving an electromagnetic wave from a first antenna at a first end of the baffle assembly (operation 1400). The process suppresses the electromagnetic wave traveling through a plurality of electromagnetic resonant structures in the baffle assembly toward a second antenna at a second end of the baffle assembly (operation 1402). Thereafter the process terminates.

[0125] The flowcharts and block diagrams in the embodiments of different descriptions illustrate the architecture, functions, and operations of some possible implementations of the devices and methods in the exemplary embodiments. In this regard, each block in the flowchart or block diagram may represent at least one of a module, a section, a function, or a part of an operation or step. For example, one or more blocks may be implemented as program instructions, hardware, or a combination of program instructions and hardware. When implemented in hardware, the hardware may take the form of, for example, an integrated circuit that is manufactured or configured to perform one or more operations in the flowchart or block diagram. When implemented as a combination of program instructions and hardware, the implementation may take the form of firmware. Each block in the flowchart or block diagram may be implemented using a dedicated hardware system that performs different operations or a combination of dedicated hardware and program instructions run by the dedicated hardware.

[0126] In some alternative implementations of the exemplary embodiments, one or more of the functions indicated in the blocks may not occur in the order indicated in the figures. For example, in some cases, depending on the functions involved, two consecutive blocks shown may be executed substantially simultaneously, or these blocks may sometimes be executed in the reverse order. In addition, other blocks may be added in addition to the blocks shown in the flowchart or block diagram.

[0127] It can be described in the context of the aircraft manufacturing and maintenance method 1500 as shown in Figure 15 and the aircraft 1600 as shown in Figure 16 the exemplary embodiments of the present disclosure. First, turning to Figure 15 , a diagram depicting a block diagram of an aircraft manufacturing and maintenance method according to an exemplary embodiment is shown. During pre-production, the aircraft manufacturing and maintenance method 1500 may include Figure 16 the specification and design 1502 and material procurement 1504 of the aircraft 1600 in

[0128] During production, the component and sub-component manufacturing 1506 and system integration 1508 of the aircraft 1600 in Figure 16 are carried out. Thereafter, Figure 16 the aircraft 1600 in Figure 16 may undergo certification and delivery 1510 for commissioning 1512. When put into use 1512 by the customer,

[0129] Each process of the aircraft manufacturing and maintenance method 1500 may be performed or carried out by a system integrator, a third party, an operator, or some combination thereof. In these examples, the operator may be a customer. For the purposes of this specification, the system integrator may include, but is not limited to, any number of aircraft manufacturers and prime system subcontractors; the third party may include, but is not limited to, any number of vendors, subcontractors, and suppliers; and the operator may be an airline, a leasing company, a military entity, a service organization, etc.

[0130] Now referring to Figure 16 , a diagram of a block diagram of an aircraft in which an exemplary embodiment may be implemented is depicted. In this example, the aircraft 1600 is produced by the aircraft manufacturing and unmodified method 1500 in Figure 15 , and may include a fuselage 1602 having a plurality of systems 1604 and an interior 1606. Examples of the systems 1604 include one or more of a propulsion system 1608, an electrical system 1610, a hydraulic system 1612, and an environmental system 1614. Any number of other systems may be included. Although an aerospace example is shown, different exemplary embodiments may be applied to other industries, such as the automotive industry.

[0131] During Figure 15 at least one stage of the aircraft manufacturing and maintenance method 1500 in

[0132] In one exemplary embodiment, components or sub-components produced in the component and sub-component manufacturing 1506 in Figure 15 may be fabricated or manufactured in a manner similar to components or sub-components produced when the aircraft 1600 in Figure 15 is put into use 1512. As yet another example, during production stages (such as the component and sub-component manufacturing 1506 and system integration 1508 in Figure 15 ), one or more device embodiments, method embodiments, or a combination thereof may be utilized. When the aircraft 1600 is put into use 1512, during the maintenance and repair 1514 in Figure 15 , or both, one or more device embodiments, method embodiments, or a combination thereof may be utilized. The use of multiple different exemplary embodiments may substantially speed up the assembly of the aircraft 1600, reduce the cost of the aircraft 1600, or both speed up the assembly of the aircraft 1600 and reduce the cost of the aircraft 1600.

[0133] For example, a spoiler assembly as depicted in different figures may be manufactured during component and sub-component manufacturing 1506. During system integration 1508, the spoiler assembly may be used with an antenna in an antenna system of an aircraft 1600. Additionally, the spoiler assembly may be implemented into an existing antenna system or replace an antenna system during maintenance and repair 1514, which may occur during including modification, reconfiguration, refurbishment, and other maintenance or repair. In an exemplary example, the spoiler assemblies in different exemplary examples may be operable to isolate an antenna to improve the performance of these antennas during operation of the aircraft 1600 in service 1512.

[0134] This exemplary embodiment provides a method, apparatus, and system for suppressing electromagnetic waves. The spoiler assembly includes a plurality of electromagnetic resonant structures and a dielectric material. The plurality of electromagnetic resonant structures suppress electromagnetic waves traveling through the plurality of electromagnetic resonant structures. The dielectric material surrounds the plurality of electromagnetic resonant structures.

[0135] The spoiler assembly may reduce interference between antennas in an antenna system by suppressing electromagnetic waves to provide a desired level of isolation. Additionally, the spoiler assembly may have a surface flush with the antenna. In some exemplary examples, the entire antenna system is flush with the outer mold line of a vehicle such as an aircraft. In one exemplary example, a skin layer may be located on top of the dielectric material to flush the spoiler assembly with other components. Additionally, the dielectric material and the skin layer when used may provide durability and reduce the collection of contaminants within the spoiler assembly.

[0136] Descriptions of different exemplary embodiments have been presented for purposes of illustration and description and are not intended to be exhaustive or limited to the embodiments in the disclosed form. Different exemplary examples describe components that perform actions or operations. In an exemplary embodiment, a component may be configured to perform the described actions or operations. For example, a component may have a configuration or design of a structure that provides the component with the ability to perform the actions or operations described for the component in the exemplary example. Additionally, to the extent that the terms "including", "comprising", "having", "containing", and variations thereof are used herein, such terms are intended to be inclusive in a manner similar to the term "including" as an open transitional word and do not exclude any additional or other elements.

[0137] Many modifications and variations will be apparent to those of ordinary skill in the art. Additionally, different exemplary embodiments may provide different features compared to other desired embodiments. The one or more selected embodiments are chosen and described in order to best explain the principles of the embodiments, practical applications, and to enable others of ordinary skill in the art to understand the disclosure of the various embodiments with various modifications suitable for the particular uses contemplated.

Claims

1. A spoiler assembly, comprising: a plurality of electromagnetic resonant structures configured to suppress electromagnetic waves traveling through the plurality of electromagnetic resonant structures; as well as A dielectric material surrounds the plurality of electromagnetic resonant structures.

2. The spoiler assembly according to claim 1, further comprising: A skin layer covers the multiple electromagnetic resonant structures and the dielectric material.

3. The spoiler assembly according to claim 1, wherein: The plurality of electromagnetic resonant structures are configured to suppress the electromagnetic waves traveling through the plurality of electromagnetic resonant structures by at least one of blocking the electromagnetic waves, reflecting the electromagnetic waves away from an initial direction of travel of the electromagnetic waves, and dissipating electromagnetic energy in the electromagnetic waves.

4. The spoiler assembly according to claim 1, further comprising: A spoiler tray, wherein the plurality of electromagnetic resonant structures are connected to the spoiler tray.

5. The spoiler assembly according to claim 1, wherein: The plurality of electromagnetic resonant structures are configured to suppress the electromagnetic waves traveling from a first antenna adjacent to a first end of the spoiler assembly through the plurality of electromagnetic resonant structures to a second antenna adjacent to a second end of the spoiler assembly.

6. The spoiler assembly according to claim 1, wherein: The dielectric material is selected from at least one of foam and solid resin.

7. The spoiler assembly according to claim 1, wherein: The dielectric material has a dielectric constant from 0.8 to 1.

8.

8. The spoiler assembly according to claim 1, wherein: The plurality of electromagnetic resonant structures are configured to suppress electromagnetic waves having a plurality of frequencies.

9. The spoiler assembly according to claim 1, wherein: The plurality of electromagnetic resonance structures are a plurality of inductive and capacitive electromagnetic resonance structures.

10. The spoiler assembly according to claim 1, wherein: The plurality of electromagnetic resonant structures have a plurality of parameters selected for suppressing the electromagnetic waves, and wherein the plurality of parameters are selected from at least one of material, size, shape, pitch, and position of the plurality of electromagnetic resonant structures.

11. The spoiler assembly according to claim 1, wherein: The plurality of electromagnetic resonant structures and the dielectric material are located in a platform, and the platform is selected from the group consisting of a mobile platform, a fixed platform, a land-based structure, a water-based structure, a space-based structure, an aircraft, a commercial aircraft, a rotorcraft, a tilt-rotor aircraft, a tilt-wing aircraft, a vertical take-off and landing aircraft, an electric vertical take-off and landing vehicle, a personal air vehicle, a surface ship, a tank, a personnel transporter, a train, a spacecraft, a space station, a satellite, a submarine, an automobile, a power plant, a bridge, a dam, a house, a manufacturing facility, or a building.

12. An antenna system, comprising: First antenna; Second antenna; A spoiler assembly having a first end and a second end, wherein the first antenna is adjacent to the first end and the second antenna is adjacent to the second end, and wherein the spoiler assembly comprises: a plurality of electromagnetic resonant structures configured to suppress electromagnetic waves traveling from the first antenna through the plurality of electromagnetic resonant structures to the second antenna; and A dielectric material surrounds the plurality of electromagnetic resonant structures.

13. The antenna system according to claim 12, wherein: The spoiler assembly also includes: A spoiler tray, wherein the plurality of electromagnetic resonant structures are connected to the spoiler tray.

14. The antenna system according to claim 12, wherein: The plurality of electromagnetic resonant structures are configured to suppress the electromagnetic waves traveling through the plurality of electromagnetic resonant structures by at least one of blocking the electromagnetic waves, reflecting the electromagnetic waves away from an initial direction of travel of the electromagnetic waves, and dissipating electromagnetic energy in the electromagnetic waves.

15. A spoiler assembly, comprising: a plurality of inductive and capacitive electromagnetic resonant structures configured to suppress electromagnetic energy traveling along a propagation direction from a first end of the spoiler assembly to a second end of the spoiler assembly, thereby electromagnetically isolating the second end from the first end; as well as A dielectric material surrounds the plurality of inductive and capacitive electromagnetic resonant structures.

16. The spoiler assembly according to claim 15, wherein: The spoiler assembly is positioned between a first antenna adjacent the first end and a second antenna adjacent the second end.

17. The spoiler assembly according to claim 15, wherein: The spoiler assembly is recessed and flush with the top surface of the support structure.

18. The spoiler assembly according to claim 17, further comprising: A skin layer covers the plurality of inductive and capacitive electromagnetic resonant structures and the dielectric material, wherein the skin layer is aligned flush with a top surface of the aircraft.

19. The spoiler assembly according to claim 15, wherein: The plurality of inductive and capacitive electromagnetic resonant structures have a plurality of parameters selected to suppress electromagnetic waves, and wherein the plurality of parameters are selected from at least one of material, size, shape, pitch and position of the plurality of inductive and capacitive electromagnetic resonant structures.

20. A method for suppressing electromagnetic waves, the method comprising: receiving electromagnetic waves from a first antenna at a first end of the spoiler assembly; as well as Electromagnetic waves traveling through a plurality of electromagnetic resonant structures in the spoiler assembly toward a second antenna at a second end of the spoiler assembly are suppressed.

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