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

Xuxiang Chen, Yuehe Ge*, Trevor S. Bird

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1973-1974
Number of pages2
JournalElectronics Letters
Volume52
Issue number24
DOIs
Publication statusPublished - 24 Nov 2016
Externally publishedYes

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