Design and exploration of functioning of a D-Z shaped SNG multiband metamaterial for L-, S-, and X-bands applications

Dhar, Nipa; Rahman, Muhammad Asad; Hossain, Md. Azad

doi:10.1007/s42452-020-2867-0

Cited by 21 publications

(6 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, Refs. 36 , 48 , 50 , 52 have larger dimensions than the proposed MTM. Moreover, the proposed MTM exhibits a higher EMR of 10.95 than the MTMs of 36 , 49 , 52 , which indicates the superiority of the proposed design in terms of compactness over those MTMs.…”

Section: Results Analysismentioning

confidence: 99%

H-shaped modifiers loaded mirror symmetric resonator based double negative metamaterial for multi-band wireless communications

Rahman,

Islam,

Moniruzzaman

et al. 2023

Sci Rep

View full text Add to dashboard Cite

In this article, a unique metamaterial (MTM) structure is presented that exhibits four resonances of transmission coefficient (S21) that fall into S, X, and Ku bands. The MTM design is initiated on a Rogers (RT5880) substrate with an electrical dimension of 0.088 λ × 0.088 λ (λ is calculated at 3.424 GHz). The resonating patch contains four quartiles connected by a central metallic strip. The placement of each quartile is such that the whole resonator is mirror symmetric about the vertical axis. Two H-shaped modifiers connect two quartiles of each vertical half of the resonator. These H-shaped modifiers form the resonance cavity in its vicinity, and thus help significantly to orient the overall resonances of the proposed MTM at 3.424 GHz, 10 GHz, 14.816 GHz, and 16.848 GHz. The resonance phenomena are examined through equivalent circuit modeling and verified in Advanced Design Software (ADS). Metamaterial properties of the proposed MTM are extracted and it exhibits negative permittivity, permeability, and refractive index. The prototype of the MTM is fabricated and measurement is taken. The measured S21 shows a close similarity with the simulated result. Moreover, effective medium ratio (EMR) is calculated for the proposed MTM and a high EMR of 10.95 is obtained that expresses its compactness. This compact MTM with negative permittivity, permittivity, and refractive index can be important component for improving the performance of the miniaturized devices for multi-band wireless communication systems.

show abstract

Section: Results Analysismentioning

confidence: 99%

H-shaped modifiers loaded mirror symmetric resonator based double negative metamaterial for multi-band wireless communications

Rahman,

Islam,

Moniruzzaman

et al. 2023

Sci Rep

View full text Add to dashboard Cite

show abstract

“…where L and C stand at generally structural inductance and capacitance. The current induced in the metal strip creates inductance and the split gap between two metal strips causes capacitance in the metamaterial design [38]. In the structure, copper strips of the unit cell are thus considered as inductance (L) and split gaps on the metal strips are considered as capacitance (C).…”

Section: Equivalent Circuit Modelmentioning

confidence: 99%

Double-E-Triple-H-Shaped NRI-Metamaterial for Dual-Band Microwave Sensing Applications

Hossain¹,

Patwary²,

Islam³

et al. 2022

Computers, Materials &Amp; Continua

View full text Add to dashboard Cite

This paper presents a new Double-E-Triple-H-Shaped NRI (negative refractive index) metamaterial (MM) for dual-band microwave sensing applications. Here, a horizontal H-shaped metal structure is enclosed by two face-to-face E-shaped metal structures. This double-E-H-shaped design is also encased by two vertical H-shaped structures along with some copper links. Thus, the Double-E-Triple-H-Shaped configuration is developed. Two popular substrate materials of Rogers RO 3010 and FR-4 were adopted for analyzing the characteristics of the unit cell. The proposed structure exhibits transmission resonance inside the S-band with NRI and ENG (Epsilon Negative) metamaterial properties, and inside the C-band with ENG and MNG (Mu Negative) metamaterial properties. A good effective medium ratio (EMR) of 8.06 indicates the compactness and effectiveness of the proposed design. Further analysis has been done by changing the thickness of the substrate material as well and a significant change in the effective medium ratio is found. The validity of the proposed structure is confirmed by an equivalent circuit model. The simulated result agrees well with the calculated result. For exploring microwave sensing applications of the proposed unit cell, permittivity and pressure sensitivity performance were investigated in different simulation arrangements. The compact size, effective parameters, high sensitivity and a good EMR represent the proposed metamaterial as a promising solution for S-band and C-band microwave sensing applications.

show abstract

“…In SRR, the split gap between ring represents capacitor, while the metal loop forms the inductance. [31][32][33] The equivalent circuit diagram is shown in Figure 5.…”

Section: Equivalent Circuit Diagram For Antenna-iiimentioning

confidence: 99%

“…The miniaturization obtained in Antenna‐III is due to use of metamaterial design. In SRR, the split gap between ring represents capacitor, while the metal loop forms the inductance 31‐33 . The equivalent circuit diagram is shown in Figure 5.…”

Section: Designmentioning

confidence: 99%

A metamaterial‐inspired circularly polarized antenna for implantable applications

Goswami¹,

Karia²

2020

Engineering Reports

View full text Add to dashboard Cite

A novel microstrip-fed metamaterial-inspired antenna is proposed for implantable applications. The designed antenna operates in the Industrial, Scientific and Medical band at a frequency (2.4-2.5) GHz. The implantable antenna comprises of two split ring resonators. The use of metamaterial not only dramatically reduces the size of the antenna, but also improves its gain and bandwidth. Different methods of size reduction with optimum gain and bandwidth are here discussed in detail. The implantable antenna is designed using FR4 substrate which provides better gain, miniature size (84% size reduction), good impedance matching, circular polarization with 3.41% of 3-dB axial ratio bandwidth. Circularly polarized antennas are usually preferred as they reduce polarization mismatch loss. The antenna is 29 × 28 mm 2 in size with 4.86 dB gain and 140 MHz impedance bandwidth. The design of phantom liquid, the computation of its pH value, and measurement of its permittivity are thoroughly reported. The permittivity of the liquid is found to increase with the pH value. The permittivity of phantom liquid has been validated with 85070E dielectric probe kit. A detailed description of different probes is provided. The measurement results are in good agreement with simulations. Finally, the design of phantom for implantable applications and techniques for size reduction of the same have been described. This reduced size will help to fit antenna in medical devices, providing greater ease for the body movement. K E Y W O R D S implantable antenna, metamaterial (split ring resonator), phantom design 1 INTRODUCTION Implantable antennas have gathered remarkable attention due to their importance in the medical and engineering field. These implantable devices are used for many kinds of medical applications such as tumor detection, wireless health monitoring, various cancer detection, speech sensing, self-monitoring, digestive monitoring, 1 retinal implants, 2 cardioverter defibrillators and pacemakers, 3 temperature monitoring, 4 and orthopedic monitoring device. 5,6 Majorly it is reducing This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

show abstract

Design and exploration of functioning of a D-Z shaped SNG multiband metamaterial for L-, S-, and X-bands applications

Cited by 21 publications

References 53 publications

H-shaped modifiers loaded mirror symmetric resonator based double negative metamaterial for multi-band wireless communications

H-shaped modifiers loaded mirror symmetric resonator based double negative metamaterial for multi-band wireless communications

Double-E-Triple-H-Shaped NRI-Metamaterial for Dual-Band Microwave Sensing Applications

A metamaterial‐inspired circularly polarized antenna for implantable applications

Contact Info

Product

Resources

About