Efficient analysis of antenna around electrically large platform with improved non-uniform rational B-spline hybrid method of moments and physical-optics method

An improved wide-band analysis which combines the hybrid method of moments-physical optics (MoM-PO) formula with impedance matrix interpolation technique for antennas around large platforms is presented. The algorithm proposed in this paper interpolated the mutual impedance matrix between MoM and PO regions rather than the MoM self-matrix. This practice can result in more accurate frequency response than the conventional approach. Sample numerical results demonstrate the capability of the algorithm.

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Higher order hybrid method of moments-physical optics modeling technique for radiation and scattering from large perfectly conducting surfaces

IEEE Transactions on Antennas and Propagation ◽

10.1109/tap.2004.841318 ◽

2005 ◽

Vol 53 (2) ◽

pp. 800-813 ◽

Cited By ~ 36

Author(s):

M. Djordjevic ◽

B.M. Notaros

Keyword(s):

Method Of Moments ◽

Hybrid Method ◽

Higher Order ◽

Modeling Technique ◽

Physical Optics

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Analyzing Electromagnetic Systems on Electrically Large Platform Using a GTM-PO Hybrid Method with Synthetic Basis Functions

International Journal of Antennas and Propagation ◽

10.1155/2014/162421 ◽

2014 ◽

Vol 2014 ◽

pp. 1-7

Author(s):

Shang Xiang ◽

Gaobiao Xiao ◽

Junfa Mao

Keyword(s):

Current Distribution ◽

Hybrid Method ◽

Computational Efficiency ◽

Transition Matrix ◽

Decomposition Method ◽

Domain Decomposition Method ◽

Basis Functions ◽

Physical Optics ◽

Numerical Examples ◽

Large Platform

A hybrid method of generalized transition matrix (GTM) and physical optics (PO) with synthetic basis functions (SBF) is proposed to analyze electromagnetic systems on electrically large platforms. Based on domain decomposition method (DDM), the proposed approach is to divide the whole problem into a GTM region and a PO region. The GTM algorithm can simulate antennas and scatterers accurately, and the PO algorithm is applied to obtain current distribution on the electrically large platform. With the characteristics extraction technique using SBFs on the GTM models, the number of unknowns can be greatly reduced and the computational efficiency can be further improved. PO region is regarded as an environment background and the unknowns in the PO region need not to be directly solved. Numerical examples will be shown to demonstrate the feasibility of the hybrid method.

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A novel hybrid method with equivalence principle algorithm and physical optics for antenna problems on electrically large platform

2011 IEEE International Symposium on Antennas and Propagation (APSURSI) ◽

10.1109/aps.2011.5997039 ◽

2011 ◽

Cited By ~ 1

Author(s):

K. Z. Zhang ◽

J. Zhang ◽

J. Ouyang ◽

F. Yang

Keyword(s):

Hybrid Method ◽

Equivalence Principle ◽

Physical Optics ◽

Large Platform ◽

Equivalence Principle Algorithm

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Analysis of Mesh Reflector Antennas with Complex Mesh Surfaces Using Physical Optics Combined with Periodic Method of Moments

2005 Asia-Pacific Microwave Conference Proceedings ◽

10.1109/apmc.2005.1606581 ◽

2006 ◽

Cited By ~ 1

Author(s):

A. Miura ◽

Y. Rahmat-Samii

Keyword(s):

Method Of Moments ◽

Physical Optics ◽

Reflector Antennas ◽

Periodic Method

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Comparison of Three Methods of MOM, MLFMM and PO/MOM for Simulation of Variable Wall Thickness Radome

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.268-270.946 ◽

2011 ◽

Vol 268-270 ◽

pp. 946-949

Author(s):

Lie Zhang ◽

Juan Zhang ◽

Peng Fei Du ◽

Zuo Jun Li ◽

Zhu Feng Yue

Keyword(s):

Wall Thickness ◽

Method Of Moments ◽

Variable Thickness ◽

Fast Multipole Method ◽

Design Concept ◽

Physical Optics ◽

Medium Size ◽

Method Of Moment ◽

Variable Wall Thickness ◽

Variable Wall

a Design Concept of Piecewise Variable Wall Thickness of Radome Is Proposed to Simulate the Radome which Has Variable Wall. the Paper Calculates the Far Field of a Medium-Size Radome in the Case of Piecewise Variable Thickness by Three Methods as Follows: Method of Moment (MOM), Multilevel Fast Multipole Method (MLFMM) and Physical Optics& the Method of Moments (PO/MOM) Respectively. after Comparing the Results, we Find that the PO/MOM Method Have the Superiority in Simulation of Radome’s Electromagnetic because it’s More Accuracy and Less Memory Consuming than the other Two Methods. Also it Proves the Feasibility of the Design Concept of Piecewise Variable Thickness for Radome.

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