Q-factor for Multiport Antennas and Achievable Bandwidth Estimation
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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10
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IEEE Transactions on Antennas and Propagation, Volume 69, issue 10, pp. 6364-6373
Abstract
This article studies the use of quality factor Q as a tool to design multiport antenna structures with matching networks. Approximative formulas for computing the Q -factor from the port impedances of multiport antennas are presented. We show that the achievable performance level can be reliably estimated based on the Q -factor without the need for computationally heavy and time-consuming matching network optimization. The efficiency of the proposed method is confirmed with a practical two-port antenna cluster design for smartphones operating in the 0.7-1.0 GHz frequency band. The results show that the proposed port impedance-based Q -factor formulas provide an efficient tool to accelerate the design process of multiport antennas.Description
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Luomaniemi, R, Yla-Oijala, P, Lehtovuori, A & Viikari, V 2021, 'Q-factor for Multiport Antennas and Achievable Bandwidth Estimation', IEEE Transactions on Antennas and Propagation, vol. 69, no. 10, pp. 6364-6373. https://doi.org/10.1109/TAP.2021.3070115