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- Title
적층형 로트만 렌즈를 활용한 28 GHz 대역 3차원 아날로그 빔포밍 시스템 구현.
- Authors
김 동 우; 장 언 학; 오 순 수
- Abstract
Future radio industries such as the commercialization of 5G mobile communication services will gradually increase in frequency, starting from millimeter waves. Accordingly, beamforming technologies must be developed to efficiently utilize public radio frequencies. Beamforming technology is classified into three types: fully digital, hybrid digital, and analog. In this study, we designed and implemented analog beamforming systems. A system of three-dimensional beam tilting was implemented. The Rotman lens was stacked, and a 3 × 10 Vivaldi array antenna was constructed. A switch controlled by wireless connection was configured for beam selection; therefore, the system could be accessed and operated remotely. Three-dimensional radiation patterns of nine beams were measured using a multi-probe near-field measurement system. The experimental results were similar to the simulation results. Notably, the beamforming system implemented in this study could contribute to various communication services.
- Subjects
ANTENNA arrays; MILLIMETER waves; PUBLIC radio; RADIO frequency; BEAMFORMING
- Publication
Journal of Korean Institute of Electromagnetic Engineering & Science / Han-Guk Jeonjapa Hakoe Nonmunji, 2021, Vol 32, Issue 11, p943
- ISSN
1226-3133
- Publication type
Article
- DOI
10.5515/KJKIEES.2021.32.11.943