English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The objective of this paper is to use a zero refractive index n metamaterial as single layer superstrate suspended above a microstrip patch antenna (MPA), operating at 43 GHz, for the gain enhancement. The single metamaterial layer superstrate is composed of a periodic arrangement of Jerusalem cross unit-cells, and behaves as an homogeneous medium characterized by a refractive index close to zero. This metamaterial low index property allows gathering radiated waves from the antenna and collimates them towards the superstrate normal direction. The proposed design improves the antenna gain by 5.1 dB.

A Zero-Index Metamaterial Single Layer Superstrate for Patch Antenna Gain Enhancement