下一代紧型天线用于强大的防御和立方卫星通信.
Swati Varun Yadav1, Manish Varun Yadav2, S Raghavendra3
1Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, India.
Scientific reports
|February 6, 2026
概括
本研究介绍了一种用于国防和卫星需求的紧型超宽带 (UWB) 天线. 微型天线为可靠的通信系统提供广泛的带宽和高效率.
科学领域:
- 电气工程 电气工程
- 电磁学 电磁学 电磁学 电磁学
- 天线理论天线理论
背景情况:
- 现代国防和小型卫星系统需要紧,高性能天线.
- 现有的天线往往难以满足宽频和小型化需求.
研究的目的:
- 设计和优化一个微型超宽带 (UWB) 天线.
- 为了满足国防和小型卫星应用的通信要求.
主要方法:
- 使用CST微波工作室进行天线设计和优化.
- 在FR4基板上制造,尺寸为10×12×1.5mm3.
- 在6 GHz以下和毫米波频率的电磁性能评估.
主要成果:
- 实现了3.4-14 GHz的操作带宽 (121.8%的阻抗带宽).
- 测量的峰值增益为4.56dBi,回报损失为-28dB,辐射效率为82.9%.
- 证明了稳定的辐射模式和高效率,尽管电气尺寸紧 (0.113λ × 0.136λ × 0.017λ).
结论:
- 微型的UWB天线满足现代国防和立方卫星任务的要求.
- 该设计提供了一个强大的解决方案,用于弹性,抗干扰,高性能通信.
- 该天线的紧尺寸和宽带宽使其适用于空间有限的应用.
相关概念视频
Communication
8.8K
Communication between two animals occurs when one animal transmits an information signal that causes a change in the animal that receives the information. Organisms communicate with one another in a host of different ways. Signals can be auditory, chemical, visual, tactile, or a combination of these. Communication is a critical behavioral adaptation that promotes survival, growth, and reproduction.
8.8K
Communication
11.3K
Sharing information, concepts, and emotions to foster mutual understanding is communication. The sender, recipient, and transaction must be considered in this manner. The sender is the person who shares the message, the recipient is the person who receives and understands the message, and the transaction is the method used to deliver the message and the variables that affect the communication's context and surroundings. The nurse-client connection is built on therapeutic communication.
11.3K
Compact Bone
16.6K
Most bones contain compact and spongy osseous tissue, but their distribution and concentration vary based on the bone's overall function.
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
Compact bone, also called cortical bone, is the denser, stronger of the two types of bone tissue. It is found under the periosteum and in the diaphyses of long bones, where it provides support and protection. The microscopic structural unit of compact bone is called an osteon, or haversian system. Each osteon is composed of concentric rings of calcified...
16.6K
The Antenna Complex
8.0K
Plants and other photosynthetic organisms comprise pigments capable of absorption of direct sunlight. These pigments are present in the reaction center - the main site of photochemical reactions as well as in the antenna complex. Under average light conditions, the rate at which reaction center pigments absorb light is far below the electron transport chain's capacity. As a result, the reaction center alone cannot provide enough energy to drive photosynthesis. The photosynthetic efficiency can...
8.0K
Compacting Factor test
600
The compacting factor test is a method used to assess the workability of concrete. It is especially suitable for concrete mixes containing aggregates up to one and a half inches in size. This test involves specialized equipment consisting of two truncated cone-shaped hoppers and a cylinder, all with polished interior surfaces to minimize friction.
The procedure begins by placing concrete into the upper hopper without any compaction. Once filled, the bottom door of this hopper is opened,...
The procedure begins by placing concrete into the upper hopper without any compaction. Once filled, the bottom door of this hopper is opened,...
600
Defenses Against Pathogens and Herbivores
29.6K
Plants present a rich source of nutrients for many organisms, making it a target for herbivores and infectious agents. Plants, though lacking a proper immune system, have developed an array of constitutive and inducible defenses to fend off these attacks.
29.6K


