| 1. |
- Razavi, Aidin, 1982, et al.
(author)
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Optimal Aperture Distribution for Maximum Power Transfer in Planar Lossy Multilayered Matters
- 2015
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In: 9th European Conference on Antennas and Propagation, EuCAP 2015, Lisbon, Portugal, 13-17 May 2015. - 9788890701856
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Conference paper (peer-reviewed)abstract
- We combine array-signal-processing and spectral domain techniques to determine the optimal aperture current distribution that maximizes the power coupling between two antenna apertures which are located on opposing sides of a multilayered lossy structure in the near-field. The resulting optimal distribution can be used as a reference in the design of antennas for near-field applications, such as for the detection of foreign objects in lossy media, wireless charging of implant batteries, or near-field communications with an implant. A MoM approach is formulated to study the performance of the optimal aperture currents in a simulated detection application in the presence of a small PEC patch, and it is shown that the optimal aperture current can improve the system sensitivity and increase the detection probability of the object.
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| 2. |
- Razavi, Aidin, 1982, et al.
(author)
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Optimal aperture distribution for near-field detection of foreign objects in lossy media
- 2014
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In: 2014 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications, APWC 2014. - 9781467356923 ; , s. 659-662
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Conference paper (peer-reviewed)abstract
- We determine the optimal source aperture field distribution to maximize the power transfer through a lossy medium from the transmitter aperture to a receiver aperture located in the near-field region. The optimal distribution is determined by applying array signal processing techniques to aperture field modes. By designing the system to be sensitive to the presence of foreign objects in a homogenous matter, the synthesized optimal aperture distribution increases the detection probability of foreign objects in various near-field applications, such as those that can detect potentially hazardous contaminations in food.
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