Tunable bandstop filter using graphene in terahertz frequency band

Ram, G. Challa; Sambaiah, P.; Yuvaraj, S.; Kartikeyan, M. V.

doi:10.1016/j.aeue.2021.154047

Cited by 15 publications

(4 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Filter BSF dapat diterapkan untuk frekuensi tinggi, skala GHz sampai THz dengan bahan material tertentu dan didesain dengan metodologi tertentu, seperti penelitian terbaru yang diusulkan oleh (Yang et al, 2019;Allam et al, 2019;Challa Ram et al, 2022;Goyal et al, 2022;Rajput & Mukherjee, 2023). Akan tetapi juga dapat diimplementasikan pada frekuensi rendah, dibawah 1 kHz, yang dibangun melalui komponen diskrit dimana komponen-komponen elektronika ini harganya murah dan dapat ditemukan di pasaran lokal.…”

Section: Diskusiunclassified

Simulation of Active Sallen Key Notch Filter Circuit Using Circuit Wizard and Its Real Testing

Fuada,

Liu,

Anggraeni

et al. 2023

JITE

View full text Add to dashboard Cite

An electronic circuit that functions to block or hold signals with intermediate frequencies (median) and will forward signals between low frequencies and high frequencies is the definition of a Notch Filter. The Band Stop Filter, also often referred to as the Notch Filter, is a combination of a Low Pass Filter and a High Pass Filter connected in parallel. This connection differs from the Band Pass Filter, which connects the Low Pass Filter and High Pass Filter in series. This study aims to discuss the simulation of the Sallen-key notch filter Circuit. The author also conducts real simulations to prove the Circuit by changing or adjusting the value of the components installed in the Circuit so that the frequency response is according to the target. The purpose and role of the Sallen-key notch filter and the working principle of the theory of each filter used. The research method used in the research work is to carry out virtual simulations using virtual simulators and live simulations

show abstract

Section: Diskusiunclassified

Simulation of Active Sallen Key Notch Filter Circuit Using Circuit Wizard and Its Real Testing

Fuada,

Liu,

Anggraeni

et al. 2023

JITE

View full text Add to dashboard Cite

show abstract

“…The number of stopbands increases from one to two with the chemical potentials of GRs increasing from 0.2 to 0.8 eV. Ram et al proposed a planar graphene-based bandstop filter [18]. The transmission line model of the bandstop filter has been considered, which consists of open-circuited shunt stubs interconnected through unit elements.…”

Section: Introductionmentioning

confidence: 99%

High-Q terahertz bandstop filter via cuboid frame structure

Wang

et al. 2023

J. Micromech. Microeng.

View full text Add to dashboard Cite

Terahertz (THZ) band stop filter can be used to filter interference signals in a filter pass band. The quality factor (Q) is the most important index to evaluate the transmission performance of filter. Usually, the high Q, the narrow bandwidth and the large slope of the stop band will promise the good filtering accuracy and transmission response. However, the Q value taken from metamaterial structures designed on the plane is always only in the single digit, resulting in less than satisfactory in filtering performance. Herein, a high Q terahertz band stop filter based on metamaterials was proposed. To fabricate this three-dimensional (3D) metamaterial structure, a microtopographic substrate guided method with feasible and high accuracy capacities was proposed. As a result, the device is measured to be in the filtering state in 1.038-1.102 THz while it is stopped in 1.062-1.066 THz. The similarity between the experimental and simulated transmission is up to 86.32%, indicating the fabricating method possesses a high accuracy. Accordingly, the Q value was calculated to be as high as 532. The band stop filter with this record Q value can be widely used in THZ detection, imaging and sensing in future. Meanwhile, the proposed fabrication method is effectively applied in 3D metamaterial and THZ device as well.

show abstract

“…These drawbacks have incited to do this work. [18][19][20][21][22][23][24] The Recustomize finite impulse response (RFIR) filter using TOSAM and error reduced carry prediction approximate adder (ERCPAA) and this filter is applicable in the image processing application.…”

Section: Introductionmentioning

confidence: 99%

“…These filters do not remove the noises accurately, and consumes more area, power, cost, delay, and also increased the error rate. These drawbacks have incited to do this work 18–24 …”

Section: Introductionmentioning

confidence: 99%

Design of recustomize finite impulse response filter using truncation based scalable rounding approximate multiplier and error reduced carry prediction approximate adder for image processing application

Senthilkumar¹,

Pandi

Sripriya

et al. 2023

Concurrency and Computation

View full text Add to dashboard Cite

Summary Recustomize finite impulse response (RFIR) filter is designed to achieve lesser power consume, cost, area, and higher speed of system operation. This is used to remove the noises from the image and signal. Previously, several filters were designed for removing noises, but that filters consume more area, power, cost, and delay and did not provide accurate results and the error rate was increased. To overcome these issues, this work is proposed. In this work, the Recustomize finite impulse response (RFIR) filter is designed using truncation‐based scalable rounding approximate multiplier (TOSAM) and error reduced carry prediction approximate adder (ERCPAA) for image processing application. Here, TOSAM‐ERCPAA is used to speed up the filter design with less area and less power consumption. The proposed ERCPAA adder is divided into three blocks, such as carry prediction logic, approximate full adder cells array, constant truncation along error lessening logic, which can reduce the power and area. The proposed RFIR‐ TOSAM‐ERCPAA filter is designed and executed in Verilog programming language and the simulation is done in Xilinx ISE 14.5 design tools.

show abstract

Tunable bandstop filter using graphene in terahertz frequency band

Cited by 15 publications

References 37 publications

Simulation of Active Sallen Key Notch Filter Circuit Using Circuit Wizard and Its Real Testing

Simulation of Active Sallen Key Notch Filter Circuit Using Circuit Wizard and Its Real Testing

High-Q terahertz bandstop filter via cuboid frame structure

Design of recustomize finite impulse response filter using truncation based scalable rounding approximate multiplier and error reduced carry prediction approximate adder for image processing application

Contact Info

Product

Resources

About