Two-Dimensional Beam Steering Active Lens With Simple Grid Bias Lines at 19 GHz
SCIE
SCOPUS
- Title
- Two-Dimensional Beam Steering Active Lens With Simple Grid Bias Lines at 19 GHz
- Authors
- Cho, Sungmin; Salim, Ahmed; Song, Ho-Jin
- Date Issued
- 2021-10
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Abstract
- This paper presents two-dimensional (2D) beam-steering of an active lens with simple grid bias lines at 19 GHz. In general, 2D beamforming in azimuth and elevation planes requires one-to-one unit cell control for a 2D phase distribution on a planar lens. In this work, the 2D phase distribution is achieved with only M vertical and N horizontal bias lines for MxN unit cells. The active unit cell is based on an I-shaped resonator and includes a varactor diode associated with two bias lines shared by neighboring unit cells. The five-layer unit cell achieves a phase range of more than 360 degrees. The 32x32 unit-cell-stacked prototype demonstrates pencil beam scanning up to +/- 40 degrees in the E- and H-planes with a 15.8% 3-dB bandwidth, a 17.5-dBi broadside gain, and low power consumption of 5.2 mu W per beam switching. The 2D beam-steering for (theta(0), phi(0)) = (30 degrees, 45 degrees) is verified through simulation and experimental results at 19 GHz.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/107716
- DOI
- 10.1109/TVT.2021.3111435
- ISSN
- 0018-9545
- Article Type
- Article
- Citation
- IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol. 70, no. 10, page. 9716 - 9724, 2021-10
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- There are no files associated with this item.
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