Functionally graded waveguide used in satellites in low earth orbit and geostationary orbit rely on high-speed communication links, has composite material that is reflects signals out of waveguide and provides electromagnetic shielding, interior channel that is aligned with central axis of waveguide
	KALIA B; HUSAIN M; SINGH R
	2024-06-07
专利权人	NAT INST TECH TEACHERS TRAINING & RES (NATE-Non-standard)
申请日期	2024-06-07
专利号	IN202411044119-A
成果简介	NOVELTY - Functionally graded waveguide, has a meta-structure material (100) through which electromagnetic waves propagate, the meta-structure material being selected to control wave propagation and reduce signal loss; a composite material (200) forming an interior channel within the meta-structure, where the composite material reflects signals out of the waveguide and provides electromagnetic shielding; where, the interior channel is aligned with a central axis of the waveguide, to aid in distributing signal more evenly around the full circumference of the waveguide; the interior channel and the second material within it run along the full length of the meta-structure material so that light is emitted along the full length of the waveguide; the second material is at a boundary between the interior channel and the meta-structure material, so that the second material contacts the meta-structure material and signal does not have to pass through any intermediate materials. USE - Functionally graded waveguide used in satellites in low earth orbit and geostationary orbit rely on high-speed communication links. Use but not limited radar systems: Aerospace radar systems, such as those used for air traffic control or defense applications, can benefit from functionally graded waveguide their antennas or signal propagation channels. The ability to shape the waveguides properties to match the radar signal can reduce scattering and enhance the system's sensitivity and resolution. Sensor Systems: Waveguides are used in aerospace sensors, including gyroscopes, accelerometers, and environmental monitoring systems. Functionally graded waveguide can improve the performance of these sensors by optimizing the way signals interact with sensor elements, reducing noise, and improving accuracy. microwave and radio frequancy (RF) heating systems: In aerospace, microwave heating is often used for applications such as de-icing or curing composite materials. Functionally graded waveguides can help optimize the microwave energy distribution, ensuring more uniform heating and reducing energy losses. ADVANTAGE - The functionally graded waveguide material (FGMs) enable to produce good thermal management and stability, in aerospace components are exposed to large variations in temperature, which can cause significant performance degradation in traditional materials. By utilizing FGMs, the thermal expansion mismatch between different materials can be minimized. This ensures better structural integrity and stability of waveguides in extreme temperatures, such as those encountered during re-entry or in space. Enhanced Signal Integrity and Reduced Loss: In aerospace communication systems (e.g., satellite communications or radar), maintaining signal integrity is crucial. Functionally graded waveguide (FGWs) can reduce the scattering and absorption losses by ensuring smooth transitions in material properties. For instance, in microwave and millimeter-wave applications, FGWs can reduce the discontinuities that cause signal attenuation and reflections. Optimized Propagation Characteristics: The gradient in material properties can be tailored to optimize wave propagation for specific frequencies or wavelengths. By adjusting the gradient, it's possible to control the speed and confinement of electromagnetic waves, leading to better communication bandwidth and more efficient signal routing. Reduced Electromagnetic Interference (EMI): FGWs can be designed with graded electromagnetic shielding properties, which helps reduce interference from external sources, such as engine noise, or mitigate internal noise within the aircraft or spacecraft. This is essential for sensitive communication, navigation, and radar systems. DETAILED DESCRIPTION - Functionally graded waveguide, has a meta-structure material (100) through which electromagnetic waves propagate, the meta-structure material being selected to control wave propagation and reduce signal loss; a composite material (200) forming an interior channel within the meta-structure, where the composite material reflects signals out of the waveguide and provides electromagnetic shielding; where, the interior channel is aligned with a central axis of the waveguide, to aid in distributing signal more evenly around the full circumference of the waveguide; the interior channel and the second material within it run along the full length of the meta-structure material so that light is emitted along the full length of the waveguide; the second material is at a boundary between the interior channel and the meta-structure material, so that the second material contacts the meta-structure material and signal does not have to pass through any intermediate materials; the interior channel is formed as a circular hole through the meta-structure material; the functionally graded waveguide has the ability to return to a predetermined shape or form after being deformed, when exposed to external stimulus such as temperature, pressure change. DESCRIPTION OF DRAWING(S) - The drawing shows illustrates the Isometric view of waveguide. 100Meta-structure material 200Composite material
IPC 分类号	B22F-010/20 ; B29C-064/153 ; B33Y-010/00 ; B33Y-030/00 ; B33Y-050/02
国家	印度
专业领域	材料科学
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/16354
专题	中国科学院新疆生态与地理研究所
作者单位	NAT INST TECH TEACHERS TRAINING & RES (NATE-Non-standard)
推荐引用方式 GB/T 7714	KALIA B,HUSAIN M,SINGH R. Functionally graded waveguide used in satellites in low earth orbit and geostationary orbit rely on high-speed communication links, has composite material that is reflects signals out of waveguide and provides electromagnetic shielding, interior channel that is aligned with central axis of waveguide. IN202411044119-A[P]. 2024.

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