Affordable Access

deepdyve-link deepdyve-link
Publisher Website

Broadband frequency-selective spoof surface plasmon polaritons on ultrathin metallic structure.

Authors
Type
Published Article
Journal
Scientific Reports
2045-2322
Publisher
Nature Publishing Group
Publication Date
Volume
5
Pages
8165–8165
Identifiers
DOI: 10.1038/srep08165
PMID: 25641730
Source
Medline
License
Unknown

Abstract

We propose an ultrathin metallic structure to produce frequency-selective spoof surface plasmon polaritons (SPPs) in the microwave and terahertz frequencies. Designed on a thin dielectric substrate, the ultrathin metallic structure is composed of two oppositely oriented single-side corrugated strips, which are coupled to two double-side corrugated strips. The structure is fed by a traditional coplanar waveguide (CPW). To make a smooth conversion between the spatial modes in CPW and SPP modes, two transition sections are also designed. We fabricate and measure the frequency-selective spoof SPP structure in microwave frequencies. The measurement results show that the reflection coefficient is less than -10 dB with the transmission loss around 1.5 dB in the selective frequency band from 7 to 10 GHz, which are in good agreements with numerical simulations. The proposed structure can be used as an SPP filter with good performance of low loss, high transmission, and wide bandwidth in the selective frequency band.

Statistics

Seen <100 times