Reduction of sidelobe radiations of the standard pyramidal horn using a thin metamaterial lens

A method is reported to suppress the sidelobe radiation of a standard pyramidal horn using a thin single-layer metamaterial lens. The metamaterial lens is composed of two identical metallic dipole arrays printed on both sides of a single dielectric layer. By placing the metamaterial lens inside a st...

Full description

Saved in:
Bibliographic Details
Published inElectronics letters Vol. 52; no. 24; pp. 1973 - 1974
Main Authors Chen, Xuxiang, Ge, Yuehe, Bird, Trevor S
Format Journal Article
LanguageEnglish
Published The Institution of Engineering and Technology 24.11.2016
Subjects
antenna radiation patterns
Antennas and propagation
aperture antennas
Arrays
dipole antenna arrays
electromagnetic field
Electromagnetic fields
Electronics
E‐plane
horn antennas
horn aperture
Horns
H‐plane
lens antennas
Lenses
low‐sidelobe radiation
metallic dipole array
metamaterial antennas
Metamaterials
microstrip antenna arrays
printed antenna
prototype lens measurement
Sidelobes
single dielectric layer
standard pyramidal horn sidelobe radiation suppression
thin single‐layer metamaterial lens
single dielectric layer
E-plane
horn antennas
electromagnetic field
aperture antennas
thin single-layer metamaterial lens
dipole antenna arrays
microstrip antenna arrays
lens antennas
H-plane
metamaterial antennas
standard pyramidal horn sidelobe radiation suppression
antenna radiation patterns
horn aperture
printed antenna
low-sidelobe radiation
prototype lens measurement
metallic dipole array
Online AccessGet full text

Cover

More Information
Summary:A method is reported to suppress the sidelobe radiation of a standard pyramidal horn using a thin single-layer metamaterial lens. The metamaterial lens is composed of two identical metallic dipole arrays printed on both sides of a single dielectric layer. By placing the metamaterial lens inside a standard pyramidal horn, the electromagnetic fields over the horn aperture can be modified, resulting in low-sidelobe radiation in both the E- and H-planes of the horn. The measurement of a prototype lens gave a 10 dB reduction of the first sidelobe level in the E-plane, compared with that of the original air-filled pyramidal horn. Other design possibilities with a compensating lens are suggested.
Bibliography:Yuehe Ge: Also with State Key Laboratory of Millimetre Waves, Nanjing 210096, People's Republic of China
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2016.3336