Open AccessPlanar Modulated Reactance Surfaces for Endfire Antenna Applications
Author(s) -
Do-Hoon Kwon
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2015/1/012081
Subject(s) - reactance , aperture (computer memory) , optics , planar , antenna (radio) , physics , radiation pattern , antenna aperture , acoustics , engineering , computer science , electrical engineering , voltage , computer graphics (images) , quantum mechanics
Modulated reactance synthesis for planar impenetrable electromagnetic surfaces for endfire radiation characteristics is presented. It is based on aperture field synthesis over the entire spectral range, where the desired radiation pattern is prescribed by a traveling-wave current over the aperture. Carefully constructed auxiliary waves in the evanescent spectrum are added and the total aperture fields are optimized such that the entire aperture surface becomes pointwise reactive. The optimized aperture fields define the modulated surface reactance that realizes the desired pattern when excited by a feed surface wave. The reactance distribution may be realized as modulated metasurfaces.