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

Electrical Engineering

Research output: Contribution to journal › Article › peer-review

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 - 1997

ASJC Scopus subject areas

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

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title = "Finite-difference time-domain analysis of HF antennas on helicopter airframes",

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.",

author = "Andrew, {William V.} and Constantine Balanis and Tirkas, {Panayiotis A.} and Jian Peng and Birtcher, {Craig R.}",

note = "Funding Information: Manuscript received August 28, 1995; revised December 10, 1996. This work was sponsored by the Advanced Helicopter Electromagnetics Program and NASA Grant NAG-1-1082. The authors are with the Department of Electrical Engineering, Telecommunications Research Center, Arizona State University, Tempe, AZ 85287-7206 USA (email: balanis@asu.edu). Publisher Item Identifier S 0018-9375(97)03700-9.",

year = "1997",

doi = "10.1109/15.584932",

language = "English (US)",

volume = "39",

pages = "100--113",

journal = "IEEE Transactions on Electromagnetic Compatibility",

issn = "0018-9375",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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T1 - Finite-difference time-domain analysis of HF antennas on helicopter airframes

AU - Andrew, William V.

AU - Balanis, Constantine

AU - Tirkas, Panayiotis A.

AU - Peng, Jian

AU - Birtcher, Craig R.

N1 - Funding Information: Manuscript received August 28, 1995; revised December 10, 1996. This work was sponsored by the Advanced Helicopter Electromagnetics Program and NASA Grant NAG-1-1082. The authors are with the Department of Electrical Engineering, Telecommunications Research Center, Arizona State University, Tempe, AZ 85287-7206 USA (email: balanis@asu.edu). Publisher Item Identifier S 0018-9375(97)03700-9.

PY - 1997

Y1 - 1997

N2 - 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.

AB - 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.

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JF - IEEE Transactions on Electromagnetic Compatibility

SN - 0018-9375

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ER -

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

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