نتایج جستجو برای: quatrature amplitude modulation

تعداد نتایج: 234755  

Journal: :IEEE Access 2023

This paper proposes a transmitter system based on direct antenna amplitude-shift keying modulation for point-to-point microwave link. The proposed is formed from conventional microstrip and novel reconfigurable metasurface layer (RMSL). RMSL has two states: OFF (or Logic-0) ON Logic-1) where each switching scenario provides certain gain level. achieved through controlling the configuration to c...

2016
Qiu Wang Xueqian Zhang Yuehong Xu Jianqiang Gu Yanfeng Li Zhen Tian Ranjan Singh Shuang Zhang Jiaguang Han Weili Zhang

As a revolutionary three-dimensional imaging technique, holography has attracted wide attention for its ability to photographically record a light field. However, traditional phase-only or amplitude-only modulation holograms have limited image quality and resolution to reappear both amplitude and phase information required of the objects. Recent advances in metasurfaces have shown tremendous op...

Journal: :Journal of Comparative Physiology A 2018

Journal: :The Journal of the Acoustical Society of America 2006

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