A Spurious-Free Characteristic Mode Formulation Based on Surface Integral Equation for Patch Antenna Structures

Kun Fan; Ran Zhao; Guangshang Cheng; Zhixiang Huang; Jun Hu

doi:10.1109/LAWP.2022.3141410

A Spurious-Free Characteristic Mode Formulation Based on Surface Integral Equation for Patch Antenna Structures

Kun Fan, Ran Zhao, Guangshang Cheng, Zhixiang Huang, Jun Hu

Computer, Electrical and Mathematical Sciences and Engineering

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

8 Scopus citations

Abstract

Conventional surface integral equation (SIE)-based characteristic mode formulation for the patch antenna structure with a finite substrate is susceptible to the spurious (nonphysical) modes due to the dielectric part. To avoid the contamination of spurious modes, we propose a novel generalized eigenvalue formulation based on the electric field integral equation coupled Poggio-Miller-Chang-Harrington-Wu-Tsai (EFIE-PMCHWT) equation. In this formulation, the real and imaginary parts of the exterior integral operators are chosen to construct the finalized weighting matrices, to connect radiated power of the characteristic current. Compared with other SIE-based methods, this equation doesnt need additional post-processing since it can effectively avoid spurious modes. Numerical results compared with the volume-surface integral equation (VSIE) are investigated to validate the accuracy.

Original language	English (US)
Pages (from-to)	1-1
Number of pages	1
Journal	IEEE Antennas and Wireless Propagation Letters
DOIs	https://doi.org/10.1109/LAWP.2022.3141410
State	Published - 2022

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title = "A Spurious-Free Characteristic Mode Formulation Based on Surface Integral Equation for Patch Antenna Structures",

abstract = "Conventional surface integral equation (SIE)-based characteristic mode formulation for the patch antenna structure with a finite substrate is susceptible to the spurious (nonphysical) modes due to the dielectric part. To avoid the contamination of spurious modes, we propose a novel generalized eigenvalue formulation based on the electric field integral equation coupled Poggio-Miller-Chang-Harrington-Wu-Tsai (EFIE-PMCHWT) equation. In this formulation, the real and imaginary parts of the exterior integral operators are chosen to construct the finalized weighting matrices, to connect radiated power of the characteristic current. Compared with other SIE-based methods, this equation doesnt need additional post-processing since it can effectively avoid spurious modes. Numerical results compared with the volume-surface integral equation (VSIE) are investigated to validate the accuracy.",

author = "Kun Fan and Ran Zhao and Guangshang Cheng and Zhixiang Huang and Jun Hu",

note = "KAUST Repository Item: Exported on 2022-01-18",

year = "2022",

doi = "10.1109/LAWP.2022.3141410",

language = "English (US)",

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journal = "IEEE Antennas and Wireless Propagation Letters",

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TY - JOUR

T1 - A Spurious-Free Characteristic Mode Formulation Based on Surface Integral Equation for Patch Antenna Structures

AU - Fan, Kun

AU - Zhao, Ran

AU - Cheng, Guangshang

AU - Huang, Zhixiang

AU - Hu, Jun

N1 - KAUST Repository Item: Exported on 2022-01-18

PY - 2022

Y1 - 2022

N2 - Conventional surface integral equation (SIE)-based characteristic mode formulation for the patch antenna structure with a finite substrate is susceptible to the spurious (nonphysical) modes due to the dielectric part. To avoid the contamination of spurious modes, we propose a novel generalized eigenvalue formulation based on the electric field integral equation coupled Poggio-Miller-Chang-Harrington-Wu-Tsai (EFIE-PMCHWT) equation. In this formulation, the real and imaginary parts of the exterior integral operators are chosen to construct the finalized weighting matrices, to connect radiated power of the characteristic current. Compared with other SIE-based methods, this equation doesnt need additional post-processing since it can effectively avoid spurious modes. Numerical results compared with the volume-surface integral equation (VSIE) are investigated to validate the accuracy.

AB - Conventional surface integral equation (SIE)-based characteristic mode formulation for the patch antenna structure with a finite substrate is susceptible to the spurious (nonphysical) modes due to the dielectric part. To avoid the contamination of spurious modes, we propose a novel generalized eigenvalue formulation based on the electric field integral equation coupled Poggio-Miller-Chang-Harrington-Wu-Tsai (EFIE-PMCHWT) equation. In this formulation, the real and imaginary parts of the exterior integral operators are chosen to construct the finalized weighting matrices, to connect radiated power of the characteristic current. Compared with other SIE-based methods, this equation doesnt need additional post-processing since it can effectively avoid spurious modes. Numerical results compared with the volume-surface integral equation (VSIE) are investigated to validate the accuracy.

UR - http://hdl.handle.net/10754/674987

UR - https://ieeexplore.ieee.org/document/9674791/

U2 - 10.1109/LAWP.2022.3141410

DO - 10.1109/LAWP.2022.3141410

M3 - Article

SN - 1548-5757

SP - 1

EP - 1

JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

ER -

A Spurious-Free Characteristic Mode Formulation Based on Surface Integral Equation for Patch Antenna Structures

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