Abstract: This paper proposes a hybrid beamforming framework for massive multiple-input multiple-output (MIMO) in near-space airship-borne communications. To achieve high energy efficiency (EE) in ...
Java Development Kit (JDK) 26, a planned update to standard Java due March 17, 2026, has reached its second release candidate (RC) stage. The RC is open for critical bug fixes, with the feature set ...
Abstract: A high-efficiency X-band monopulse slot array antenna based on a 2 × 3 elements subarray is designed and analyzed in this letter. The bottom layer of the antenna structure is a waveguide ...
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