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Ammar B. Kouki
Researcher at École de technologie supérieure
Publications - 245
Citations - 2809
Ammar B. Kouki is an academic researcher from École de technologie supérieure. The author has contributed to research in topics: Amplifier & Microstrip. The author has an hindex of 28, co-authored 244 publications receiving 2555 citations. Previous affiliations of Ammar B. Kouki include Escuela Superior Politecnica del Litoral & University of Illinois at Urbana–Champaign.
Papers
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Power Approaches for Implantable Medical Devices
TL;DR: In this paper, methodologies to transfer and harvest energy in implantable medical devices are introduced and discussed to highlight the uses and significances of various potential power sources, which is becoming more and more critical to the increasing need of power for wireless communication in implanted devices towards the future healthcare infrastructure, namely mobile health.
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On the linearity and efficiency of outphasing microwave amplifiers
A. Birafane,Ammar B. Kouki +1 more
TL;DR: In this paper, a new approach for the analysis of the efficiency and linearity of Chireix-outphasing combiners is presented, taking into account, in an explicit manner, the effect of impedance mismatch between the amplifiers and the lossless combining structure.
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Direct parameter-extraction method for HBT small-signal model
TL;DR: In this paper, an accurate and broadband method for the direct extraction of heterojunction bipolar transistor (HBT) small-signal model parameters is presented, which differs from previous ones by extracting the equivalent-circuit parameters without using special test structures or global numerical optimization techniques.
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Phase-only predistortion for LINC amplifiers with Chireix-outphasing combiners
A. Birafane,Ammar B. Kouki +1 more
TL;DR: In this paper, a generalized analytical approach for finding phase-only predistortion functions to linearize the Chireix-outphasing amplifiers is presented and two distinct analytical solutions are found and are applied for phase only linearization.
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New compound upper bound on MIMO channel capacity
Sergey Loyka,Ammar B. Kouki +1 more
TL;DR: A new upper bound on the mean (ergodic) MIMO capacity is derived, which is not limited to a particular scenario and accounts for both transmit (Tx) and receive (Rx) end correlations in such a way that their impact can be estimated separately and compared.