3D modeling of complex helicopter structures: Predictions and measurements

Anastasis C. Polycarpou, Dong Ho Han, Stavros V. Georgakopoulos, Constantine Balanis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Helicopters have become carriers of several transmitting and receiving antennas for information exchange with other aircrafts, satellites or ground stations. The finite-difference time-domain, the finite element method and the method of moments were used to investigate some major issues in helicopter communications in the high frequency (HF) and very high frequency (VHF) bands. Input impedance and radiation patterns, antenna coupling, rotor modulation and ground effects were computed. Rotor-blade rotation was found to significantly affect the gain patterns of an HF towel-bar antenna especially at resonant frequencies. Also, ground may reduce the gain of a VHF antenna for elevation near grazing and zenith.

Original languageEnglish (US)
Title of host publicationAnnual Review of Progress in Applied Computational Electromagnetics
Place of PublicationMonterey, CA, United States
PublisherApplied Computational Electromagnetics Soc
Pages387-394
Number of pages8
Volume1
StatePublished - 2000
Event16th Annual Review of Progress in Applied Computational Electromagnetics (ACES 2000) - Monterey, CA, USA
Duration: Mar 20 2000Mar 24 2000

Other

Other16th Annual Review of Progress in Applied Computational Electromagnetics (ACES 2000)
CityMonterey, CA, USA
Period3/20/003/24/00

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Polycarpou, A. C., Han, D. H., Georgakopoulos, S. V., & Balanis, C. (2000). 3D modeling of complex helicopter structures: Predictions and measurements. In Annual Review of Progress in Applied Computational Electromagnetics (Vol. 1, pp. 387-394). Applied Computational Electromagnetics Soc.