{"title":"Dual-Carrier Modular Phased Arrays for Near-Field Links: Polarization-Aware QPSK and Performance Evaluation","authors":"Kosala Herath;Malin Premaratne;Sharadhi Gunathilake;Ampalavanapillai Nirmalathas","doi":"10.1109/LCOMM.2026.3652084","DOIUrl":null,"url":null,"abstract":"This letter introduces a polarization-aware phase modulation scheme for dual-carrier modular phased arrays (MPAs) in near-field communications. Using electric dipole-based modeling and complete vector-field analysis, a quadrature phase-shift keying (QPSK) method is realized through carrier-specific phase offsets. Beam-focusing patterns are examined under matched and orthogonal polarization modes with interference, revealing temporal constellation spinning. Simulations show that orthogonal polarization improves spectral efficiency and interference resilience, enabling secure and efficient near-field communications in future wireless networks.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"30 ","pages":"857-861"},"PeriodicalIF":4.5000,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Communications Letters","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/11340674/","RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/1/12 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"TELECOMMUNICATIONS","Score":null,"Total":0}
引用次数: 0
Abstract
This letter introduces a polarization-aware phase modulation scheme for dual-carrier modular phased arrays (MPAs) in near-field communications. Using electric dipole-based modeling and complete vector-field analysis, a quadrature phase-shift keying (QPSK) method is realized through carrier-specific phase offsets. Beam-focusing patterns are examined under matched and orthogonal polarization modes with interference, revealing temporal constellation spinning. Simulations show that orthogonal polarization improves spectral efficiency and interference resilience, enabling secure and efficient near-field communications in future wireless networks.
期刊介绍:
The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.