High efficiency reflectarray using smooth tapering in phase pattern on antenna surface | Zendy

Maddahali Mohsen | Zendy; Forooraghi Keyvan | Zendy

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High efficiency reflectarray using smooth tapering in phase pattern on antenna surface

Author(s) -

Maddahali Mohsen,

Forooraghi Keyvan

Publication year - 2013

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.27427

Subject(s) - tapering , wideband , broadband , microwave , optics , bandwidth (computing) , radiation , phase (matter) , radiation pattern , antenna (radio) , materials science , electronic engineering , engineering , computer science , physics , telecommunications , computer graphics (images) , quantum mechanics

In this article, a novel method is introduced to design a high efficiency and broadband reflectarray.Several techniques will be introduced for designing wideband reflectarray. First, by using fractal ring unit cell with 700° phase range; second, by smoothing phase tapering on reflectarray surface; and finally, by finding the optimum free reference phase and f/D ratio. Using these ideas, a 625 element array prototype of 25 × 25 cm 2 dimensions with 1 dB gain bandwidth of 12% and radiation efficiency close to 66% at 10 GHz is simulated and tested. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:747–753, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27427

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