Tunable terahertz band-stop filter using strongly coupled split ring resonators integrated with on-chip waveguide

Abstract

This is a repository copy of Tunable terahertz band-stop filter using strongly coupled split ring resonators integrated with on-chip waveguide.

Dielectric coated conductive rod resonantly coupled with a cut transmission line as a tunable microwave bandstop filter and sensor

“…Compared to the previous setups [ 11 , 12 ,and19]], which proposed a planar Goubau line integrated with split-ring resonators in a planar metastructure with a specific geometry to absorb energy at a precise frequency, leading to narrow-band resonances in the transmission spectrum, the current study explores a simpler structure with improved system performance with improved Q -factor of 273. Those studies examined two split-ring configurations for GHz and THz frequencies, achieving Q -factors of approximately 11 at 16 GHz, 10 at 0.315 THz [ 11 ], and almost 19 at 0.272 THz [ 19 ]. Noticeably, the resonance of the surface standing waves can be tuned towards higher GHz and THz frequencies through a careful choice of the geometrical and material parameters of the resonator and the dielectric shell.…”

“…Nevertheless, the spoof-plasmon-based transmission lines usually exhibit higher attenuation than Goubau lines [ 14 ] and the latter is currently in the further development stage. A number of electronic devices have been proposed based on the concept of the Goubau line, to name a few, wideband transmission lines [ 4 , 15 ] and passive components [ 16 ], leaky-wave antennas [ 14 , 17 , 18 ], frequency-selective configurations [ 11 , 12 , 19 ], sensors [ [20] , [21] , [22] ], etc. In particular, Parker-Jervis et al designed a tunable bandstop filter in the THz spectrum using two coupled split-ring resonators integrated with a planar Goubau line and achieved a relatively high Q-factor around 60 at about 270 THz [ 19 ].…”

Design of a Split Ring Resonator Integrated with On‐Chip Terahertz Waveguides for Colon Cancer Detection

“…[11] Various geometrical parameters in SRR and on-chip THz waveguides can be adjusted to optimize the performance of the chip depending on the applications. [10,12] Therefore, it is timely to explore methods to that could perform imaging of cancers with SRR integrated on-chip THz waveguides in order to maximize the detection sensitivity.…”