Rotor-blade modulation on antenna amplitude pattern and polarization: Predictions and measurements

被引：16
|
作者：
Birtcher, CR [1 ]
Balanis, CA
DeCarlo, D
机构：
[1] Arizona State Univ, Dept Elect Engn, Ctr Telecommun Res, Tempe, AZ 85287 USA
[2] USN, Warfare Ctr, Div Aircraft, RF Sensors Branch 4555, Patuxent River, MD 20670 USA
来源：
IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 1999年 / 41卷 / 04期
关键词：
measurements; predictions; radiation patterns; rotor blade modulation;
D O I：
10.1109/15.809828
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The rotation of lift- and thrust-generating airfoils causes a periodic variation in aircraft communication signals. This effect is called rotor-blade modulation (RBM). The RBM on the radiation characteristics of helicopter-mounted antennas are predicted using the uniform theory of diffraction (UTD) and the finite-difference time-domain (FDTD) method and are compared with scale model measurements and full-scale in-flight measurements, In addition, the effects of electric field polarization on RBM are studied using the FDTD.
引用
收藏
页码：384 / 393
页数：10
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