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Title: Integrated multibeam dual-polarised planar array
Authors: Gao, S.-C. 
Li, L.-W. 
Leong, M.-S. 
Yeo, T.-S. 
Issue Date: Jun-2001
Citation: Gao, S.-C., Li, L.-W., Leong, M.-S., Yeo, T.-S. (2001-06). Integrated multibeam dual-polarised planar array. IEE Proceedings: Microwaves, Antennas and Propagation 148 (3) : 174-178. ScholarBank@NUS Repository.
Abstract: A novel four-beam dual-polarised microstrip antenna array at the 10GHz band is presented. By using a multilayered structure and multiport slot-coupled microstrip lines, two Butler matrix microstrip circuits corresponding to two orthogonal polarisations can be located on different substrate layers (above and below the ground plane) and integrated with a patch array. The antenna has eight input ports corresponding to two orthogonal polarisations and four beams. The theoretical design is based on the finite-difference time-domain (FDTD) method. The measured return loss and isolation characteristics exceed 10 and 23dB, respectively, in the 9.7-10.3GHz band. The radiation pattern is close to an ideal Butler pattern and the cross-polarisation level is lower than -18dB in the beams. Details of the antenna and its characteristics are presented.
Source Title: IEE Proceedings: Microwaves, Antennas and Propagation
ISSN: 13502417
DOI: 10.1049/ip-map:20010497
Appears in Collections:Staff Publications

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