A Novel Notch System Having Two Stopbands Based on Duplexer for Broadband Applications

Chen, Liu; Bu, Shirong; Ning, Junsong; Cheng, Zhigang; Song, Ming; Luo, Zundu

doi:10.1109/lmwc.2016.2587831

Cited by 6 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among these two‐dimensional materials, graphene has been the subject of investigate in different areas due to its interesting mechanical, warm, and electromagnetic properties. One of the alluring properties of graphene as a semiconductor–metal fabric is its special conductivity, which can be controlled by outside voltage predisposition or inactive attractive predisposition 6 . Presently, in conjunction with the terahertz recurrence band and graphene fabric, we need a way to demonstrate and realize such devices.…”

Section: Introductionmentioning

confidence: 99%

“…One of the alluring properties of graphene as a semiconductor-metal fabric is its special conductivity, which can be controlled by outside voltage predisposition or inactive attractive predisposition. 6 Presently, in conjunction with the terahertz recurrence band and graphene fabric, we need a way to demonstrate and realize such devices. To assist design exact structure, it is fundamental to supply numerical modeling strategies that take into consideration the properties of graphene.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Two directional THz wave duplexer and filter based on graphene disks and rings

Khani

Fouladian

Mazloum

2023

Int J Numerical Modelling

View full text Add to dashboard Cite

Coating both sides of a dielectric spacer with graphene patterns, leads to a tunable meta surface which acts as a THz duplexer. Two separate channels, reflection and transmission are considered as outputs ports while the aim is to minimize absorption ration. The presented structure consists of periodic arrays of graphene patterns on both sides of silicon dioxide as substrate. Moreover, the patterns include disks and rings are biased differently compared to conventional patterns which makes it possible to achieve tunable behaviors versus external bias. utilizing equivalent circuit models (ECM) for graphene patterns and dielectric, the whole structure is modeled by passive RLC branches.According to the simulation outputs, the presented structure can transmit and reflect incident THz waves at desired frequencies in 0.1 THz to 30 THz which makes it an ideal candidate for manipulating THz waves in terms of transmission and reflection. The THz duplexer can transmit and reflect incident waves at 1-3.3 THz as wide-band and 1.05 THz as narrow-band operation. Such a tunable device is in great demand for indoor communications, security, less harmful medical imaging and space related researches.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Two directional THz wave duplexer and filter based on graphene disks and rings

Khani

Fouladian

Mazloum

2023

Int J Numerical Modelling

View full text Add to dashboard Cite

show abstract

“…It has also been used to increase data transmission capacity for short-range (short-distance) communications. The various applications of the terahertz band have made this area one of the most interesting research topics [4][5][6][7][8]. Implementing such applications requires materials to realize terahertz devices.…”

Section: Introductionmentioning

confidence: 99%

A graphene-based THz wave duplexer and filter: Switching via gate biasing

Khani

2022

Optik

View full text Add to dashboard Cite

This work introduces a Graphene-based multi-layer reconfigurable device as a wave duplexer in the THz frequency range. Adjusting transmitting and reflecting parts of incident waves alongside controlling absorption provides the interesting capability to select target waves in different frequencies. The proposed device includes periodic graphene patterns on both sides of silicon dioxide as substrate. Additionally, the patterns are biased differently compared to conventional patterns which makes it possible to achieve two distinct behaviors versus frequency. Exploiting equivalent circuit models (ECM) for graphene and dielectric, the whole device is modeled by passive RLC circuits.According to simulation results, the proposed device can transmit and reflect incident THz waves at desired frequencies in 0.1 THz to 30 THz which makes it an ideal candidate for manipulating THz waves in terms of transmission and reflection.

show abstract