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。
2021-03-15 21:09:01 9KB Rust
1
波束赋形的简介,原理,例子,类型
1
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。
2021-03-07 16:00:25 37.95MB Antenn 特征 Characterist
1
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 。。。。。。
2021-03-06 20:59:06 91KB Proteus 元件库 ANTENNA COAX
1
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。
2021-03-03 09:09:40 859KB p-i-n diode; pattern-reconfigurable antenna;
1
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
2021-03-02 21:06:05 1.87MB 研究论文
1
在这封信中,提出了一个共同设计的天线滤波器。 天线滤波器由微带贴片天线和发夹式滤波器组成,两者共享同一接地平面以减小尺寸。 代替使用传统的50-Omega接口,滤波器和天线之间的阻抗被优化以提高性能。 仿真和测量结果表明,与具有50个接口阻抗的传统天线滤波器相比,共同设计的天线滤波器具有更好的带宽(4.7%,4.06-4.26 GHz)和更大的增益(4.3 dBi)。
2021-02-24 09:09:03 251KB Antenna; co-design; filter
1
A new multi-sleeve monopole antenna for APP terminal communication is proposed and compared with the conventional sleeve monopole antenna. The prototype of the proposed antenna is constructed and simulated, which shows that the proposed antenna features excellent radiation characteristics against th
2021-02-22 09:08:57 877KB multi-sleeve monopole antenna; APP-terminal
1
Game-Theoretic Beamforming and Power Allocation in MIMO Cognitive Radio Systems with Transmitter Antenna Correlation
2021-02-21 19:10:24 1.37MB 研究论文
1
The properties of terahertz (THz) radiation pulses emitted by a metallic, large aspect ratio carbon nanotube antenna have been studied both in the THz waveforms and field distribution. The peak THz field up to 2.66 and 1.26 kV/cm are observed at the probe points. The proposed antenna is designed to operate for dual frequency applications from 2.36 to 2.58 THz and from 7.27 to 7.5 THz for less than dB return loss.
2021-02-10 16:05:23 648KB 太赫兹 碳纳米管 天线 320.7120
1