Cosite interference between wire antennas on helicopter structures and rotor modulation effects: FDTD versus measurements

Author

Georgakopoulos, Stavros V. ; Balanis, Constantine A. ; Birtcher, Craig R.

Author_Institution

Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA

Volume

41

Issue

3

fYear

1999

fDate

8/1/1999 12:00:00 AM

Firstpage

221

Lastpage

233

Abstract

As telecommunication systems become more complex and more antennas are placed on the same structure (e.g., helicopter airframe) the problem of interference becomes significant for the performance of the systems. The finite-difference time-domain (FDTD) method is used to calculate coupling between wire elements; e.g., monopoles and loops mounted on ground planes and helicopter airframes. Also, rotor modulation effects on coupling are investigated. All the numerical results obtained by FDTD are validated by comparison with measurements

Keywords

aircraft antennas; antenna testing; antenna theory; electromagnetic interference; finite difference time-domain analysis; helicopters; rotors; wire antennas; EMI; cosite interference; finite-difference time-domain method; ground planes; helicopter structure wire antennas; loops; monopoles; numerical results; rotor modulation effects; telecommunication systems; Airplanes; Antenna measurements; Finite difference methods; Helicopters; Interference; Mutual coupling; Receiving antennas; Time domain analysis; UHF antennas; Wire;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.784157

Filename

784157