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Ka-Band Rotman Lens-Based Retrodirective Beamforming System for Wireless Power Transfer
- Authors
- Hong, Hayoung; Park, Hongsoo; Lee, Kanghyeok; Lee, Wonwoo; Jo, Semin; Yang, Junhyuk; Park, Changkun; Lee, Hojin; Hong, Sun K.
- Issue Date
- Nov-2021
- Publisher
- KOREAN INST ELECTROMAGNETIC ENGINEERING & SCIENCE
- Keywords
- Beamforming; Millimeter-Waves; Retrodirective Array; Rotman Lens; Wireless Power Transfer
- Citation
- JOURNAL OF ELECTROMAGNETIC ENGINEERING AND SCIENCE, v.21, no.5, pp.391 - 398
- Journal Title
- JOURNAL OF ELECTROMAGNETIC ENGINEERING AND SCIENCE
- Volume
- 21
- Number
- 5
- Start Page
- 391
- End Page
- 398
- ISSN
- 2671-7255
- Abstract
- A retrodirective beamforming system (BFS) based on a Rotman lens is proposed for far-field wireless power transfer at Ka-band. The true-time-delay property of the Rotman lens allows for a wideband operation covering 28-38 GHz. The designed BFS comprises a Rotman lens with nine beam ports connected to a nine-element linear Vivaldi array. The proposed BFS is implemented using PCB technology for ease of manufacturing and low-cost processing. The simulated and measured results demonstrate that the proposed BFS can generate nine discrete beams over a scan range of +/- 45 degrees with a wide impedance bandwidth.
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Related Researcher
- Hong, Sun K.
- College of Information Technology (Department of Electronic Engineering)