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Wide‐band dual‐polarized planar array antenna for K / K a‐band wireless communication
Author(s) -
Wu Jie,
Jian Cheng Yu,
Fan Yong
Publication year - 2016
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.30058
Subject(s) - wideband , microstrip antenna , planar , multi band device , wireless , bandwidth (computing) , materials science , microwave , patch antenna , optoelectronics , ka band , planar array , optics , physics , electrical engineering , electronic engineering , engineering , antenna (radio) , telecommunications , computer science , computer graphics (images)
This letter presents the design and measured results of a wideband dual‐polarized array antenna for K/Ka‐band wireless communication. The proposed antenna is assembled with several single‐layer low‐permittivity dielectric substrates and two hollow aluminum plates. A rectangular patch, with a parasitic square patch above and a 0.5 mm‐air‐layer in between, is designed as the basic radiating element. Constrained feeding and coupling feeding are both imposed on the rectangular patches with a common ground to separate two feeding networks and optimization of the feeding networks is implemented to solve the coupling problem. As an example, an 8 × 8 array is designed and fabricated. Measured results show that a bandwidth of 21.4% from 25 GHz to 31 GHz has been achieved, with a gain more than 20 dBi and an isolation more than 30 dB for the orthogonal polarizations throughout the whole band. The cross‐polarization level is less than − 20 dB. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2377–2381, 2016