ＦＤＴＤ !-- Fortran code for FDTD with Berenger PMLs, version 1.0, May 1999 !-- by Jos Bergervoet. !-- Plot field and/or Poynting vector S around radiating linear dipole
标签： Bergervoet Berenger Fortran version
上传时间： 2015-10-02
上传用户：zhuimenghuadie
Feeding antennas with proper signals can be difficult. The signal is often described as a voltage, and voltages are not well defined in electromagnetic wave formulations. There are several tricks to model voltage generators in such situations, and one is the magnetic frill. This model shows the basic steps of defining a magnetic frill voltage generator for a dipole antenna, and it also compares the resulting antenna impedance with known results.
标签： difficult described antennas Feeding
上传时间： 2013-12-25
上传用户：yulg
Feeding antennas with proper signals can be difficult. The signal is often described as a voltage, and voltages are not well defined in electromagnetic wave formulations. There are several tricks to model voltage generators in such situations, and one is the magnetic frill. This model shows the basic steps of defining a magnetic frill voltage generator for a dipole antenna, and it also compares the resulting antenna impedance with known results.
标签： difficult described antennas Feeding
上传时间： 2013-12-21
上传用户：GavinNeko
DDSCAT 7.3 is a freely available open-source Fortran-90 software package applying the “discrete dipole approximation” (DDA) to calculate scattering and absorption of electromagnetic waves by targets with arbitrary geometries and complex refractive index. The targets may be isolated entities (e.g., dust particles), but may also be 1-d or 2-d periodic arrays of “target unit cells”, which can be used to study absorption, scattering, and electric fields around arrays of nanostructures.
标签： userguide
上传时间： 2015-04-29
上传用户：499689361
无线电CW通联 基本Q短语，通联实例 A: CQCQCQ DE BA4ALC/5 BA4ALC/5 BA4ALC/5 PSE K B:BA4ALC/5 DE BD4IZL BD4IZL K A:BD4IZL DE BA4ALC/5 GM TNX FER CALL DR OM UR RST 559 55N K B:RR BA4ALC/5 DE BD4IZL GM DR OM TNX 55N RPRT UR 599 5NN FB MY NAME IS YU YU QTH JINAN JINAN BA4ALC/5 DE BD4IZL K A: DR YU OM TNX FB RPRT OP JACK JACK QTH NINGBO NINGBO WX HR IS FINE ES WARM TEMP 20C 20C HW? DE BA4ALC/5 K B:R DR JACK OM WX CLOUDY CLOUDY ES TEMP 15C 15C BT RIG FT80C FT80C ANT dipole DP PWR 100WATTS 1TTW BA4ALC/5 DE BD4IZL K A: BD4IZL DE BA4ALC/5 MY RIG IS IC746PRO IC746PRO ES PWR 100W 1OOW BT ANT 2 ELE YAGI 2ELE YAGI 12MH TNX FER NICE QSO QSL VIA BURO HPE CUAGN BD4IZL DE BA4ALC/5 73 73 GL ES GB TU TU SK.. B:TNX FB CW QSO QSL QRZ.COM CUAGN BA4ALC/5 DE BD4IZL 73 DR JACK TU SK.. A:. B:.
上传时间： 2019-03-05
上传用户：shuyinglee
v> 目前最常见的蓝牙天线有偶极天线（dipole antenna）,倒 F 型天线（planar inverted F anternna）、曲流线型天线（meander line antenna）、微小型陶瓷天线（ceramic antenna）、液晶 聚合体天线（lcp）和棒状天线（2.4G 频率专用）等。由于这些具有近似全向性的辐射场型 以及结构简单、制作成本低的优点，所以非常适合嵌入蓝牙技术装置使用。
上传时间： 2022-03-11
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