Finite-difference time-domain analysis of HF antennas on helicopter airframes

William V. Andrew; Constantine Balanis; Panayiotis A. Tirkas; Jian Peng; Craig R. Birtcher

doi:10.1109/15.584932

Finite-difference time-domain analysis of HF antennas on helicopter airframes

William V. Andrew, Constantine Balanis, Panayiotis A. Tirkas, Jian Peng, Craig R. Birtcher

IAFSE-ECEE: Electrical Engineering

Research output: Contribution to journal › Article

9 Scopus citations

Abstract

In this paper, the finite-difference time-domain (FDTD) method with the Berenger perfectly matched layer (PML) absorbing boundary condition (ABC) is used to model the radiation characteristics of high frequency (HF) antennas operating in the 2-30 MHz range on a full-scale helicopter. The computed input impedance of both antennas is compared with actual measurements from an operational full-scale helicopter and also with measurements on a scale model NASA generic advanced attack helicopter (GAAH). To study the coupling effects of the helicopter fuselage on the antenna systems, the S-parameters are computed and compared with measurements on the NASA GAAH scale model. Finally, computed gain patterns are compared with actual in-flight measurements of the antenna systems on an operational full-scale helicopter.

Original language	English (US)
Pages (from-to)	100-113
Number of pages	14
Journal	IEEE Transactions on Electromagnetic Compatibility
Volume	39
Issue number	2
DOIs	https://doi.org/10.1109/15.584932
State	Published - Dec 1 1997

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ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

Cite this

Andrew, W. V., Balanis, C., Tirkas, P. A., Peng, J., & Birtcher, C. R. (1997). Finite-difference time-domain analysis of HF antennas on helicopter airframes. IEEE Transactions on Electromagnetic Compatibility, 39(2), 100-113. https://doi.org/10.1109/15.584932

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10.1109/15.584932