AF_020508

PIFA天线，通过HFSS测试仿真得到了最佳的S11，增益以及轴比

This book addresses a broad range of topics on antennas for space applications. First, it introduces the fundamental methodologies of space antenna design, modelling and analysis as well as the state-of-the-art and anticipated future technological developments. Each of the topics discussed are specialized and contextualized to the space sector. Furthermore, case studies are also provided to demonstrate the design and implementation of antennas in actual applications. Second, the authors present a detailed review of antenna designs for some popular applications such as satellite communications, space-borne synthetic aperture radar (SAR), Global Navigation Satellite Systems (GNSS) receivers, science instruments, radio astronomy, small satellites, and deep-space applications. Finally it presents the reader with a comprehensive path from space antenna development basics to specific individual applications. Key Features:* Presents a detailed review of antenna designs for applications such as satellite communications, space-borne SAR, GNSS receivers, science instruments, small satellites, radio astronomy, deep-space applications* Addresses the space antenna development from different angles, including electromagnetic, thermal and mechanical design strategies required for space qualification* Includes numerous case studies to demonstrate how to design and implement antennas in practical scenarios* Offers both an introduction for students in the field and an in-depth reference for antenna engineers who develop space antennas This book serves as an excellent reference for researchers, professionals and graduate students in the fields of antennas and propagation, electromagnetics, RF/microwave/millimetrewave systems, satellite communications, radars, satellite remote sensing, satellite navigation and spacecraft system engineering, It also aids engineers technical managers and professionals working on antenna and RF designs. Marketing and business people in satellites, wireles

Microstrip Antenna Design Handbook P._Bhartia,_Inder_Bahl,_R._Garg,_A._Ittipiboon] 微带天线设计手册，内容非常详细

在线的 :antenna_bars: 图书馆检查您的互联网连接 :call_me_hand: 如果您喜欢这个项目，请在上对我进行ping 基于TCP和的功能，该功能尝试连接到Chrome和Firefox（备用）强制门户检测服务器。 安装 安装好运行： cargo add online 使用 :memo: 如果要了解详细信息，请访问。 use online :: * ; #[async_std::main] async fn main () { assert_eq! ( online ( None ). await . unwrap (), true ); // with timeout assert_eq! ( online ( Some ( 6 )). await . unwrap (), true ); } 贡献 :smiling_face_with_sunglasses: 如果您想提供帮助，请查看。

波束赋形的简介，原理，例子，类型

天线特征模理论以及应用详解。本书介绍了天线特征模在PEC, Multilayered Medium, Dielectric Resonators上的介绍。对于特征模感兴趣的同学可以研究下。

最全的proteus常用元件库： AND 与门 ANTENNA 天线 BATTERY 直流电源 BELL 铃,钟 BVC 同轴电缆接插件 BRIDEG 1 整流桥(二极管) BRIDEG 2 整流桥(集成块) BUFFER 缓冲器 BUZZER 蜂鸣器 。。。。。。

提出了一种具有图案可重构性的宽带印刷锥形缝隙天线。 天线由四个锥形槽，一个可重新配置的微带到槽线过渡和四个引脚二极管组成。 通过适当布置偏置电压，可以通过简单的偏置电路实现四个端射辐射图。 测得的相对阻抗带宽为| S11 | 小于-10 dB为71.3％，在所有工作模式下为1.57至3.31 GHz。 在中心频率为2.4 GHz时，四个方向的增益均高于6.4 dBi。 实测结果与模拟结果吻合良好。 所提出的天线在宽带的四个可重新配置方向上具有良好的性能。

A novel antipodal Vivaldi antenna with tapering serrated structure at the edges is proposed. Compared with traditional Vivaldi antennas without serrated structure, the gain of the designed antenna is significantly improved in the desired frequency band (4.5- 7.5 GHz). In addition, a 2 x 2 Vivaldi antenna array with an orthorhombic structure is designed and fabricated to achieve a circular polarization (CP) characteristic. With this configuration, the 3 dB axial ratio bandwidth of the array reach