Fast Frequency Sweep Using Asymptotic Waveform Evaluation Technique and Thin Dielectric Sheet Approximation

Yi Ru Jeong, Ic Pyo Hong, Kyung Won Lee, Jong Hyun Lee, Jong Gwan Yook

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The thin dielectric sheet (TDS) surface integral equation (SIE) combined with the asymptotic waveform evaluation (AWE) technique is proposed to efficiently analyze wideband properties of thin dielectric layers such as radome and composite materials. The TDS SIE is an efficient method for analyzing the thin dielectric layer because the number of unknowns of the TDS SIE is fewer than that of the volume integral equation (VIE) and the condition number of the TDS impedance matrix is small. In addition, the AWE technique based on a Taylor series and the Pade approximation is a well-known method for fast frequency sweep. Therefore, the combination of these two methods makes analysis of the thin dielectric layer efficient in the wide frequency region because the advantages of each method are shown at the same time. In order to determine the valid bandwidth of the approximated results for arbitrary problems using the TDS combined with the AWE, the bandwidth estimation approach for the AWE is applied. The results of the proposed method for closed and open structures agree very well with the exact solutions and reveal the capability for fast frequency sweep.

Original languageEnglish
Article number7406712
Pages (from-to)1800-1806
Number of pages7
JournalIEEE Transactions on Antennas and Propagation
Volume64
Issue number5
DOIs
Publication statusPublished - 2016 May

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sweep frequency
waveforms
evaluation
approximation
Integral equations
integral equations
radome materials
Pade approximation
bandwidth
Radomes
Bandwidth
Taylor series
impedance
broadband
composite materials
Composite materials
matrices

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

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title = "Fast Frequency Sweep Using Asymptotic Waveform Evaluation Technique and Thin Dielectric Sheet Approximation",
abstract = "The thin dielectric sheet (TDS) surface integral equation (SIE) combined with the asymptotic waveform evaluation (AWE) technique is proposed to efficiently analyze wideband properties of thin dielectric layers such as radome and composite materials. The TDS SIE is an efficient method for analyzing the thin dielectric layer because the number of unknowns of the TDS SIE is fewer than that of the volume integral equation (VIE) and the condition number of the TDS impedance matrix is small. In addition, the AWE technique based on a Taylor series and the Pade approximation is a well-known method for fast frequency sweep. Therefore, the combination of these two methods makes analysis of the thin dielectric layer efficient in the wide frequency region because the advantages of each method are shown at the same time. In order to determine the valid bandwidth of the approximated results for arbitrary problems using the TDS combined with the AWE, the bandwidth estimation approach for the AWE is applied. The results of the proposed method for closed and open structures agree very well with the exact solutions and reveal the capability for fast frequency sweep.",
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Fast Frequency Sweep Using Asymptotic Waveform Evaluation Technique and Thin Dielectric Sheet Approximation. / Jeong, Yi Ru; Hong, Ic Pyo; Lee, Kyung Won; Lee, Jong Hyun; Yook, Jong Gwan.

In: IEEE Transactions on Antennas and Propagation, Vol. 64, No. 5, 7406712, 05.2016, p. 1800-1806.

Research output: Contribution to journalArticle

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