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This paper presents a circularly polarized reflectarray with linearly polarized feed operating at 28GHz for 5G applications. The proposed reflectarray is composed of a flat reflecting surface populated with numerous two-layer ground-backed non-resonant subwavelength rectangular patch elements which are in staggered arrangement and a Vivaldi antenna as the linearly feeder. Simulated results demonstrated...
This paper focuses on the problem of absolute exponential admissibility of switched descriptor delayed systems with sector-bounded nonlinearity. Under the regularity and impulsiveness-free, this problem, by a model transformation, is converted to the exponential stability problem of differential subsystems and algebraic subsystems. Then the absolute exponential admissibility criteria are established...
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