A Mirror Shape Chiral Meta Atom for C-Band Communication

Hasan, Mehedi; Faruque, Mohammad Rashed Iqbal; Islam, Mohammad Tariqul

doi:10.1109/access.2017.2677463

Cited by 15 publications

(8 citation statements)

References 14 publications

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“…As a result, owing to the inductive effect, the resonance frequency is decreased. Similarly, by decreasing the width and increasing the number of splits, the capacitive effect can be raised for the proposed unit cell, which swings the resonance frequency downwards [28]. However, the addition of further splits and metal arms in the meta-atom structure produces a small phase delay and increases the total inductive and capacitive effect.…”

Section: Circuit Model Of the Proposed Meta-atommentioning

confidence: 97%

Compact Left-Handed Meta-Atom for S-, C- and Ku-Band Application

2017

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Abstract:A new compact left-handed meta-atom for S-, C-and Ku-band applications is presented in this paper. The proposed structure provides a wide bandwidth and exhibits left-handed characteristics at 0 • , 90 • , 180 • and 270 • (xy-axes) rotations. Besides, the left-handed characteristics and wide bandwidth of 1 × 2, 2 × 2, 3 × 3 and 4 × 4 arrays are also investigated at the above-mentioned rotation angles. In this study, the meta-atom is designed by creating splits at the outer and inner square-shaped ring resonators, and a metal arm is placed at the middle of the inner ring resonator. The arm is also connected to the upper and lower portions of the inner ring resonator, and later, the design appears as an I-shaped split ring resonator. The commercially available, finite integration technique (FIT)-based electromagnetic simulator CST Microwave Studio is used for design and simulation purposes. The measured data comply well with the simulated data of the unit cell for 1 × 2, 2 × 2, 3 × 3 and 4 × 4 arrays at every rotation angle. Owing to the effective medium ratio (EMR) of 8.50 at 0 • and 180 • rotations, the proposed meta-atom structure is compact in size. Moreover, due to the quality factor of 82, the designed meta-atom is flexible for high-performance antenna, filter and sensor applications. Therefore, the meta-atom integrated antenna shows multi frequency bands with the highest peak gain of 5 dBi, which is used as the long distance radio communication frequency.

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Section: Circuit Model Of the Proposed Meta-atommentioning

confidence: 97%

Compact Left-Handed Meta-Atom for S-, C- and Ku-Band Application

2017

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“…The lumped equivalent circuit model 24,25 of designed metamaterial unit cell and the metamaterial antenna are shown in Fig. 3(a,b), in the circuit model the combination of inductors and capacitors both in series and parallel.…”

Section: Methods and Measurementmentioning

confidence: 99%

Dual Band Metamaterial Antenna For LTE/Bluetooth/WiMAX System

Hasan

Faruque

Islam

2018

Sci Rep

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114

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A compact metamaterial inspired antenna operate at LTE, Bluetooth and WiMAX frequency band is introduced in this paper. For the lower band, the design utilizes an outer square metallic strip forcing the patch to radiate as an equivalent magnetic-current loop. For the upper band, another magnetic current loop is created by adding metamaterial structure near the feed line on the patch. The metamaterial inspired antenna dimension of 42 × 32 mm2 compatible to wireless devices. Finite integration technique based CST Microwave Studio simulator has been used to design and numerical investigation as well as lumped circuit model of the metamaterial antenna is explained with proper mathematical derivation. The achieved measured dual band operation of the conventional antenna are sequentially, 0.561~0.578 GHz, 2.346~2.906 GHz, and 2.91~3.49 GHz, whereas the metamaterial inspired antenna shows dual-band operation from 0.60~0.64 GHz, 2.67~3.40 GHz and 3.61~3.67 GHz, respectively. Therefore, the metamaterial antenna is applicable for LTE and WiMAX applications. Besides, the measured metamaterial antenna gains of 0.15~3.81 dBi and 3.47~3.75 dBi, respectively for the frequency band of 2.67~3.40 GHz and 3.61~3.67 GHz.

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“…The resonance frequency depends on inductance ( L) and capacitance ( C) of the resonator . The measurement of the proposed MTM unit cell is performed according to the waveguide port method.…”

Section: Methodsmentioning

confidence: 99%

Beam steering of eye shape metamaterial design on dispersive media by FDTD method

Hasan

Faruque

Islam

2018

Int J Numerical Modelling

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The finite difference time domain method is applied for numerical modelling of composite dispersive material‐based proposed metamaterial, where the electromagnetic waves are propagating along the y‐axis with some exceptional properties in this paper. The existing frequency dispersive finite difference time domain method can be categorised into auxiliary differential equation method and the Z‐transform method, both of them are analysed in this paper. The auxiliary differential equation method has been introduced additional differential equations for describing frequency‐dependent material characteristics, and Z‐transform converts the frequency domain constitutive relations to Z‐domain relation. The proposed left‐handed metamaterial, single unit cell shows resonance at 5.48 GHz and the beam refraction characteristics by the incident beams on the structure. The incident beams are refracted 90°, 45° (positive refraction), and −25° (negative refraction) with respect to the metamaterial structure.

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A Mirror Shape Chiral Meta Atom for C-Band Communication

Cited by 15 publications

References 14 publications

Compact Left-Handed Meta-Atom for S-, C- and Ku-Band Application

Compact Left-Handed Meta-Atom for S-, C- and Ku-Band Application

Dual Band Metamaterial Antenna For LTE/Bluetooth/WiMAX System

Beam steering of eye shape metamaterial design on dispersive media by FDTD method

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