Controlling the scattered field in a reflectarray element using a novel technique | Zendy

Cabria L. | Zendy; Garcia J. A. | Zendy; Mediavilla A. | Zendy

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Controlling the scattered field in a reflectarray element using a novel technique

Author(s) -

Cabria L.,

Garcia J. A.,

Mediavilla A.

Publication year - 2006

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.21481

Subject(s) - aperture (computer memory) , microwave , amplifier , inverse , phase (matter) , engineering , electronic engineering , optics , physics , acoustics , mathematics , telecommunications , cmos , geometry , quantum mechanics

In this paper, a novel gain/phase adjustment unit to be employed as the cell of an active reflectarray is proposed. Based on accurate control of PHEMT behaviour in normal and inverse operation, a dual‐device variable‐gain biphase amplifier (VGBPA) has been designed for each branch of such an IQ modulator. Its proper integration in a dual‐feed aperture‐coupled square patch allows the use of orthogonal polarizations for retransmitting the received signal after selecting the desired amplitude and phase for the scattered field. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 808–810, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21481

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