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Abstrakty
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.
Czasopismo
Rocznik
Tom
Strony
419–--431
Opis fizyczny
Bibliogr. 24 poz., rys., tab., wz.
Twórcy
autor
- Department of Electrical Engineering, Shiraz Branch Islamic Azad University Shiraz, Iran
Bibliografia
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- [3] Mohamadzade B., Afsahi Ma., Mutual coupling reduction and gain enhancement in patch array antenna using a planar compact electromagnetic bandgap structure, IET Microwaves, Antennas & Propagation, vol. 11, iss. 12, pp. 1719–1725 (2017).
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- [16] Parhizgar N., Masnadi-Shirazi M.A., Alighanbari A., Sheikhi, A., Adaptive nulling of a linear dipole array in the presence of mutual coupling, International Journal of RF and Microwave Computer-Aided Engineering, vol. 24, no. 1, pp. 30–38 (2014).
- [17] Parhizgar N., Alighanbari A., Masnadi Shirazi M.A., Sheikhi A., Mutual Coupling Compensation for a Practical VHF/UHF Yagi-Uda Antenna Array, IET Microwaves, Antennas & Propagation, vol. 7, no. 13, pp. 1072–1083 (2013).
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Uwagi
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-677817b5-a4d2-417f-9b2f-8dd081aa1a3a