Patch antenna with stacked split-ring resonators as an artificial magneto-dielectric substrate

✍ Scribed by Mikko Kärkkäinen; Pekka Ikonen

• Book ID: 102521106
• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 124 KB
• Volume: 46
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.21048

✦ Synopsis

Densely packed arrays of split-ring resonators (SRRs) are used as an artificial magneto-dielectric substrate to reduce the resonant frequency of a /2 patch antenna. The SRR stacks (also called metasolenoids) embedded into dielectric medium constitute an anisotropic magnetodielectric substrate, thus allowing a considerable reduction of the resonant frequency of the antenna. The effects of the magneto-dielectric substrates on impedance bandwidth are studied numerically and experimentally. We experimentally demonstrate a wider impedance band for an antenna with stacked SRRs embedded in a low-permittivity substrate, as compared with one in a higher-permittivity substrate without SRRs.