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Ultrawideband TEM horn with inhomogeneous dielectric medium
Author(s) -
Bobreshov Anatoly M.,
Uskov Grigory K.,
Kretov Pavel A.,
Sbitnev Nikita S.
Publication year - 2021
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.32622
Subject(s) - french horn , dielectric , antenna (radio) , optics , permittivity , radiation pattern , distortion (music) , materials science , dielectric permittivity , horn antenna , electromagnetic radiation , radiation , physics , acoustics , slot antenna , electrical engineering , optoelectronics , engineering , amplifier , cmos
This article presents a novel design of ultrawideband TEM horn with dielectric filling of the space between its leaves. The distribution of dielectric permittivity in the medium is obtained according to the laws of geometric optics. The electromagnetic simulation and experimental measurements are performed; voltage standing wave ratio and radiation patterns at a set of frequencies up to 20 GHz are obtained. The described method allowed to prevent antenna pattern distortion at frequencies from 7.5 to 20 GHz.