Tian Yuan , Minhua Li , Tianyao Ling , Chao Shi , Hanru Shao , Jianfeng Dong , Libo Qian
{"title":"Microwave tunable metasurface with independent wide phase and large amplitude modulation for multifunctional beam control and RCS Reduction","authors":"Tian Yuan , Minhua Li , Tianyao Ling , Chao Shi , Hanru Shao , Jianfeng Dong , Libo Qian","doi":"10.1016/j.optcom.2025.131817","DOIUrl":null,"url":null,"abstract":"<div><div>In this paper, a microwave tunable metasurface with independent control of amplitude and phase is proposed. It consists of a varactor diode loaded phase modulation layer, an air spacer, and a PIN diode loaded amplitude modulation layer, all of which are successively cascaded along electromagnetic (EM) propagation. By controlling the equivalent lumped parameters of varactor diodes and PIN diodes independently through bias voltages, modulation of the reflected wave is achieved with 180-degree dynamic phase range and 0.2–0.9 dynamic amplitude range from 4.59 to 4.97 GHz, both of which don't interfere with each other. Additionally, reflected waves under oblique incident angles is conducted to validate the robustness of the design. Designs with diversified lumped parameters and field distributions are further studied in detail. Based on the principle of encoded metasurfaces, three-beamforming, four-beamforming, and radar cross section (RCS) reduction structures are implemented. A 4 × 2 metasurface sample is fabricated and tested in rectangular waveguide, demonstrating the feasibility of this design strategy. This advancement provides new insights for the further development of multifunctional wireless communication systems and radar technologies.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"584 ","pages":"Article 131817"},"PeriodicalIF":2.2000,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics Communications","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0030401825003451","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, a microwave tunable metasurface with independent control of amplitude and phase is proposed. It consists of a varactor diode loaded phase modulation layer, an air spacer, and a PIN diode loaded amplitude modulation layer, all of which are successively cascaded along electromagnetic (EM) propagation. By controlling the equivalent lumped parameters of varactor diodes and PIN diodes independently through bias voltages, modulation of the reflected wave is achieved with 180-degree dynamic phase range and 0.2–0.9 dynamic amplitude range from 4.59 to 4.97 GHz, both of which don't interfere with each other. Additionally, reflected waves under oblique incident angles is conducted to validate the robustness of the design. Designs with diversified lumped parameters and field distributions are further studied in detail. Based on the principle of encoded metasurfaces, three-beamforming, four-beamforming, and radar cross section (RCS) reduction structures are implemented. A 4 × 2 metasurface sample is fabricated and tested in rectangular waveguide, demonstrating the feasibility of this design strategy. This advancement provides new insights for the further development of multifunctional wireless communication systems and radar technologies.
期刊介绍:
Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.