A Closed-Form Solution to Analyze RCS of Cavity With Rectangular Cross Section

Le, Xu; Jin, Tian; Shi, Xiaowei

doi:10.2528/pier07090503

Cited by 6 publications

(6 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The technology of electromagnetic modeling, NURBS, is widely used to represent complex bodies for RCS calculation, and it requires very little memory and computing time but performs difficultly in modeling [4]. High frequency asymptotic methods like GO and PO are widely used to efficiently solve electrically large complex scattering problems at high frequency range, but they are not wideband solutions [5,6]. Arguably, the use of boundary integral equations with iterative solvers is one of the most powerful and popular methods to solve electrically large scattering problems [7,8].…”

Section: Introductionmentioning

confidence: 99%

Docker-Enabled Scalable Parallel Mlfma System for RCS Evaluation

Zhou¹,

Bie²,

Liu³

et al. 2018

PIER M

View full text Add to dashboard Cite

Abstract-Research on RCS evaluation for electrically large objects has been a hot topic for decades. Although multilevel fast multipole algorithm (MLFMA) has been the most popular method in scattering computation, due to the limitation of both CPU speed and memory size in a single computer, realistic large targets require discretization with millions of unknowns still cannot be solved by sequential implementations of MLFMA. In this paper, we introduce a Docker-enabled parallel MLFMA computing system based on MPI, which is proved to be friendly for deployment and economical for scalability, to solve electrically large scattering problems. In addition, the capability of the proposed system has been demonstrated by several canonical examples.

show abstract

Section: Introductionmentioning

confidence: 99%

Docker-Enabled Scalable Parallel Mlfma System for RCS Evaluation

Zhou¹,

Bie²,

Liu³

et al. 2018

PIER M

View full text Add to dashboard Cite

show abstract

“…This is why for instance, hybrid boundaryintegral/modal approach was developed [5]. In high-frequency, when the cross section of the cavity is large comparatively to the incident wavelength λ 0 , asymptotic methods, like approaches based on ray tracing [6][7][8][9][10], Physical Optics [11][12][13][14] and modal analysis combined with the Kirchhoff Approximation for the boundary conditions [15][16][17] are also investigated. This paper applied this latter to an open ended cavity modeled as a succession of bent waveguides of same rectangular cross section and stuffed by a perfectly-conducting termination.…”

Section: Introductionmentioning

confidence: 99%

RCS of Large Bent Waveguide Ducts From a Modal Analysis Combined With the Kirchhoff Approximation

Bourlier¹,

He²,

Chauveau³

et al. 2008

PIER

View full text Add to dashboard Cite

Abstract-In this paper, we present a fast method to predict the monostatic Radar Cross Section (RCS) in high-frequency of a cavity, which can be modeled as a succession of bent waveguides of the same cross section and stuffed by a perfectly-conducting termination. Based on a modal analysis combined with the Kirchhoff Approximation, this method allows us to obtain closed-form expressions of the transmission matrix at each discontinuity. In addition, to improve the efficiency, a selective modal scheme is proposed, which selects only the propagating modes contributing to the scattering. Compared to the Iterated Physical Optics (IPO) method and the Multi-Level Fast Multipole Method (MLFMM, generated from the commercial software FEKO), this approach brings good results for cavities with small tilt angles of the bends, typically smaller than 2 degrees.

show abstract

“…CBS scatterers and antennas are famous for theri internal resonance [14][15][16][17][18][19][20][21][22][23] and have been analyzed using various methods such as the integral equation solution by the method of moments (MOM) [1,2], finite element method (FEM) [3] and finite-difference time-domain (FDTD) method [4][5][6]. In this paper, the analysis of the CBS antenna is performed using FDTD method [11,12] because of its ability to model complex structures especially when they are made of planar surfaces or piecewise rectangular blocks.…”

Section: Introductionmentioning

confidence: 99%

Circularly Polarized Arrays of Cavity Backed Slot Antennas for X-Band Satellite Communications

Eldesouki¹,

Hussein²,

El-Nadi³

2008

PIER B

View full text Add to dashboard Cite

Abstract-Circularly-polarized arrays of cavity backed slot (CBS) antennas are proposed for X-band satellite-earth communications. Two configurations of such circularly polarized arrays are investigated: cross-shaped and square-shaped arrays. Both configurations can produce right-hand circular polarization (RHCP) as well as lefthand circular polarization (LHCP) by proper setting of excitation phase for each element in the array. The finite-difference timedomain (FDTD) method is used to analyze the characteristics of the proposed arrays including the input impedance, S-parameters, radiation pattern, gain and axial ratio. The results show that the proposed array configurations seem very promising and useful for geostationary satellite applications.

show abstract

A Closed-Form Solution to Analyze RCS of Cavity With Rectangular Cross Section

Cited by 6 publications

References 13 publications

Docker-Enabled Scalable Parallel Mlfma System for RCS Evaluation

Docker-Enabled Scalable Parallel Mlfma System for RCS Evaluation

RCS of Large Bent Waveguide Ducts From a Modal Analysis Combined With the Kirchhoff Approximation

Circularly Polarized Arrays of Cavity Backed Slot Antennas for X-Band Satellite Communications

Contact Info

Product

Resources

About