Open AccessAnalysis of radiation of antennas with a phase‐gradient partially reflective surface
Author(s) -
Moghadas Hamid,
Daneshmand Mojgan,
Mousavi Pedram
Publication year - 2015
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2014.0688
Subject(s) - beamwidth , conical surface , main lobe , radiation pattern , optics , radiation , phase (matter) , side lobe , surface (topology) , physics , materials science , computational physics , geometry , antenna (radio) , computer science , mathematics , telecommunications , quantum mechanics , composite material
This study presents a novel model for understanding the radiation phenomena and calculating the radiation pattern properties of uniform and phase‐gradient partially reflective surface (PRS) antennas. This model is extracted for one‐ and two‐dimensional antennas using array theory along with the dispersion analysis of the unit cells. The model can calculate the main lobe radiation pattern, scan angle and half‐power beamwidth of uniform and phase‐gradient PRSs with broadside, conical or tilted beams with an accuracy better than 5°. Two common PRS unit cell shapes (slotted patch and dipole) are used here.