远区场是在以场源为中心,半径为一个波长之外的空间范围也可称为辐射场。远区场的主要特点如下:在远区场中,所有的电磁能量基本上均以电磁波形式辐射传播,这种场辐射强度的衰减要比感应场慢得多。在远区场,电场强度与磁场强度有如下关系:在国际单位制中,E=377H,电场与磁场的运行方向互相垂直,并都垂直于电磁波的传播方向。远区场为弱场,其电磁场强度均较小。
3.8 远区场(Far-field region)Free space region),该区域电磁场具有平面波的特性,电场强度和磁场强度以长波方向均衡分布。
基于12个网页-相关网页
对与锥体共形的毫米波微带天线的远区场特性进行了初步的研究。
The characteristics of millimeter microstrip antenna conformal taper in the far-zone were studied.
针对运用矩量法计算电大尺寸天线时遇到的严重困难,提出一种基于矩量法的计算天线远场的远区近似(MOM - FZ)方法。
Aimed at the difficulty in calculating an electrically large size antenna by using MOM, a far zone approximate method based on MOM (MOM-FZ) was presented for calculating radar antenna pattern.
在FDTD分析方法的基础上,构造出两个特殊盒子来计算远区辐射场。
Based on the method of FDTD, two special boxes were constructed to calculate the far area radiation field.
应用推荐