首页|Dual-band dynamic reconfigurable intelligent surface for signal enhancement in millimeter wave
Dual-band dynamic reconfigurable intelligent surface for signal enhancement in millimeter wave
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Millimeter wave with large bandwidth,high transmission rate,and low delay is considered a reliable altemative to cope with the spectrum shortage.However,the fast attenuation and narrow beam characteristics make it difficult to achieve long-distance or wide-range applications.Here,a 1-bit dual-band reflective reconfigurable intelligent surface(RIS)for signal enhancement in millimeter wave with 16x16 elements is designed,fabricated,and measured.Different from most existent RIS,dynamic programming is realized at two separate frequency bands by integrating the PIN diodes and field-programmable gate array(FPGA).Particularly,the beam deflection,dual-beam,and multi-beam are created based on the coding theory and convolution operation,proving the effectiveness of wavefront manipulation.Moreover,the far-field pattems and signal power with different coding sequences are measured and compared.It is indicated that the received signal power is 6-7 dB stronger than that without coding,which shows good agreement with the desired expectations.The proposed reconfigurable metasurface exhibits great potential in beam forming,making it a promising candidate for progressive wireless communication applications.
YAO HuiMing、DU XinRun、WANG HengBin、GAO Song、PANG YaChen、ZHENG HaiRong、GONG HuiWen、LI Yi、XU JianChun、ZHANG JianHua、BI Ke
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State Key Laboratory of Information Photonics and Optical Communications,School of Science,Beijing University of Posts and Telecommunications,Beijing 100876,China
Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia,Beijing University of Posts and Telecommunications,Beijing 100876,China
State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Telecommunications,Beijing 100876,China
中央高校基本科研业务费专项国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金北京市自然科学基金Teaching Reform Projects at BUPTBUPT Excellent Ph.D.Students Foundation
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