Open AccessHighly steerable microwave beamforming system near Ku band based on the application of linearly CFBG
Author(s) -
Raghuwanshi Sanjeev Kumar,
Srivastava Nimish Kumar,
Singh Mandeep
Publication year - 2020
Publication title -
iet optoelectronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.379
H-Index - 42
eISSN - 1751-8776
pISSN - 1751-8768
DOI - 10.1049/iet-opt.2019.0073
Subject(s) - beamforming , wideband , antenna (radio) , materials science , optics , microwave , beam steering , antenna array , fiber bragg grating , true time delay , compatible sideband transmission , phase (matter) , acoustics , dispersion (optics) , sideband , modulation (music) , electronic engineering , phased array , beam (structure) , computer science , optical fiber , telecommunications , engineering , physics , quantum mechanics
In this study, the authors present theoretical and experimental results of wideband beamforming networks steered by a single linear chirped fibre Bragg grating (CFBG). The standard single‐sideband modulation technique is followed to validate the wideband (at 18 GHz) operation of the proposed system. CFBG has been fabricated by phase mask technology for the desired specification to be compatible with the antenna array. To the authors knowledge, the effect of dispersion slope feature of fabricated FBG on the performance of beam‐steering capability of the antenna is reported for the first time in this study. Theoretically preceded by experimental testing, it was found that the scanning angle increased with the rise in the number of antenna elements and the frequency of modulating microwave signal.