Characterization of a Pentagonal CSRR Bandpass Filter for Terahertz Applications

Caroline, B. Elizabeth; Sagadevan, K.; Danasegaran, Sathish Kumar; Kumar, Sandeep

doi:10.1007/s11664-022-09779-1

Cited by 19 publications

(5 citation statements)

References 43 publications

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“…Currently, various THz metamaterial devices have been proposed to obtain wavefront modulation, 8 asymmetric transmission, 9 polarization selection 10 and spectral filtering. 11 In particular, polarization modulation with high performance, such as polarization conversion and dichroism, plays key roles in many applications, such as biosensing, 12 high resolution imaging, 13 polarization reconfigurable antennas, 14 sensitive detection 15 and many other optical devices.…”

Section: Introductionmentioning

confidence: 99%

Tunable and switchable multifunctional terahertz meta-mirror based on graphene and vanadium dioxide

Zhang,

Sun,

Jiang

et al. 2024

Phys. Chem. Chem. Phys.

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Section: Introductionmentioning

confidence: 99%

Tunable and switchable multifunctional terahertz meta-mirror based on graphene and vanadium dioxide

Zhang,

Sun,

Jiang

et al. 2024

Phys. Chem. Chem. Phys.

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“…However, THz filters, recognized as pivotal components, currently grapple with challenges such as significant losses, integration complexities, and difficulties in achieving arbitrary bandwidth designs. The current implementation of THz filters relies mainly on meta-material design [ 1 , 2 ], making it challenging to integrate them into silicon-based front-end circuits. Some waveguide-based filters’ [ 3 , 4 ] design faces issues such as surface waves and high interconnection losses.…”

Section: Introductionmentioning

confidence: 99%

A Design Method and Application of Meta-Surface-Based Arbitrary Passband Filter for Terahertz Communication

Hou,

Wang,

Lin

et al. 2024

Sensors

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A meta-surface-based arbitrary bandwidth filter realization method for terahertz (THz) future communications is presented. The approach involves integrating a meta-surface-based bandstop filter into an ultra-wideband (UWB) bandpass filter and adjusting the operating frequency range of the meta-surface bandstop filter to realize the design of arbitrary bandwidth filters. It effectively addresses the complexity of designing traditional arbitrary bandwidth filters and the challenges in achieving impedance matching. To underscore its practicality, the paper employs silicon substrate integrated gap waveguide (SSIGW) and this method to craft a THz filter. To begin, design equations for electromagnetic band gap (EBG) structures were developed in accordance with the requirements of through-silicon via (TSV) and applied to the design of the SSIGW. Subsequently, this article employs equivalent transmission line models and equivalent circuits to conduct theoretical analyses for both the UWB passband and the meta-surface stopband portions. The proposed THz filter boasts a center frequency of 0.151 THz, a relative bandwidth of 6.9%, insertion loss below 0.68 dB, and stopbands exceeding 20 GHz in both upper and lower ranges. The in-band group delay is 0.119 ± 0.048 ns. Compared to reported THz filters, the SSIGW filter boasts advantages such as low loss and minimal delay, making it even more suitable for future wireless communication.

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“…MPA antenna plays a significant role in realizing all these applications, and it has more advantages [7][8][9][10][11] than other antennas. The MPA performances and limitations are enhanced by various methods like defected ground, metamaterials, 12,13 patched array, and photonic crystal. 14,15 This paper chooses the metamaterial concept and analyzes the antenna performances with the impact of these methods.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the antenna characteristics with the impact of hexagonal metamaterial

Ponnupillai

Arunakiri

Danasegaran³

et al. 2023

Int J Communication

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Antenna miniaturization is a typical trend in contemporary wireless systems, notably for current wireless technology, to meet multiband needs while preserving high transmission qualities. The terahertz (THz) regime is helpful in advanced applications and significantly impacts wireless technology. This paper proposes a double-layered hexagonal split ring resonator (HSRR) based on a microstrip patch antenna (MPA) and analyzes the simulated characteristics. The HSRR width is varied for different thickness "w" values and compares the analysis of with and without HSRR in the antenna. Due to the impact of metamaterials, the optimized antenna produces À44.02-dB return loss, 1.012 voltage standing wave ratio (VSWR), 6.47-dBi gain, and 4.78-dB directivity at 1.8-THz frequency. This proposed antenna is suitable for THz applications, which include high-speed data rate in wireless communication, bio-medical field, and THz spectrometer.

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Characterization of a Pentagonal CSRR Bandpass Filter for Terahertz Applications

Cited by 19 publications

References 43 publications

Tunable and switchable multifunctional terahertz meta-mirror based on graphene and vanadium dioxide

Tunable and switchable multifunctional terahertz meta-mirror based on graphene and vanadium dioxide

A Design Method and Application of Meta-Surface-Based Arbitrary Passband Filter for Terahertz Communication

Investigation of the antenna characteristics with the impact of hexagonal metamaterial

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