An Accurate Mutual Coupling Calculation For Microstrip Antennas For Impedance Mismatching

Qi, Zhou; Lei, Zhenya; Wang, Peng; Xie, Yongjun; Min, Xiang; He, Ming

doi:10.1109/isape.2006.353393

Cited by 3 publications

(5 citation statements)

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“…The steering vector does not satisfy the model when the array is influenced by mutual coupling [10]. The mutual coupling can severely decline the performance of DOA estimation techniques and signal processing algorithms [1][2][3][4][5][6][7][8][9][10][11][12].…”

Section: Calculation Of Compensation Matrixmentioning

confidence: 99%

“…Several mutual coupling compensation methods have been proposed and evaluated. The most significant contributions are the open-circuit voltage method [4], the S-parameter method [1], the full-wave electromagnetic method of moments [7][8][9], calibration method [10], using the mathematical tool of the genetic algorithm (GA) [11], impedance matching technique [12] and finally the receiving mutual impedance methods [13][14]. The method of moments (MOM) [8] is used to find a solution for the boundary value problem of the antenna array.…”

Section: Introductionmentioning

confidence: 99%

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Archives of Electrical Engineering

Parhizgar¹

2018

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Most receiving antenna arrays suffer from the mutual coupling problem between antenna elements, which can critically influence the performance of the array. In this work, a novel and accurate form of compensation matrix is applied to compensate the mutual coupling in a uniform linear array (ULA). This is achieved by applying a new method based on solving a boundary value problem for the whole ULA. In this method, both self and mutual impedances are exploited in an accurate characterization of mutual impedance matrix which results in a perfect mutual coupling compensation method, and hence a very accurate direction of arrival (DOA) estimation. In the new scheme, the compensation matrix is obtained by using the relationship between measured voltage and theoretical coupled voltage based on the MOM. Numerical results show that using DOA estimation algorithms to the decoupled voltage obtained by using this method leads to an excellent performance of DOA estimation with higher accuracy and resolution.

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Section: Calculation Of Compensation Matrixmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Archives of Electrical Engineering

Parhizgar¹

2018

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“…An accurate formula for the coupling between patch elements is introduced by Z. Qi et al [32]. The classic formula for mutual coupling based on multi-port network theory ignores the impedance mismatching between antenna elements but on the other hand the introduced formula consider this mismatching between antenna array elements.…”

Section: Conformal Microstrip Antenna Array and Mutual Couplingmentioning

confidence: 99%

“…However there is no consensus on what really complexity is [26,31]). Many project managers cannot distinguish the difference between complex and complexity [32]. However a definition of project complexity should at least contain interaction, structural and dynamic elements [32].…”

Section: Project Complexitymentioning

confidence: 99%