A New Compact Double-Negative Miniaturized Metamaterial for Wideband Operation

Hasan, Md. Mehedi; Faruque, Mohammad Rashed Iqbal; Islam, Sikder Sunbeam; Islam, Mohammad Tariqul

doi:10.3390/ma9100830

Cited by 90 publications

(49 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The total inductance (LT) and capacitance (CT) for the proposed structure can be obtained from [21]. Therefore, the total inductance (LT) can be obtained from, …”

Section: Circuit Model Of the Proposed Meta-atommentioning

confidence: 99%

“…Due to the effective medium ratio (EMR), more than four of the proposed metamaterials were compact in size, and the quality factor was 31. Moreover, the double-negative properties appeared at 8.79 GHz [21]. In 2016, Liu et al presented a 5 × 5-mm 2 split ring-shaped left-handed metamaterial developed using modified circular electric resonators, and it exhibited a dual-band for microwave devices and antenna applications with an effective medium ratio of 5.45 [22].…”

Section: Introductionmentioning

confidence: 99%

“…The dimensions of the designed meta-atom are 10 × 10 mm 2 , which is compact in size according to the effective medium ratio and comparison with [5,17,19,[21][22][23]. The proposed meta-atom unit cell and arrays also exhibit more frequency bands with a wider bandwidth than [1, 4,5,16,17,[19][20][21][22][23]. Moreover, the proposed meta-atom is used for enhancing the antenna bandwidth, number of frequency bands and gain because the number of frequency bands, bandwidth and gain of the antenna can be improved by using the partial or slotted or fractal or meta-atom integrated ground plane.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

2017

Self Cite

View full text Add to dashboard Cite

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.

show abstract

“…The total inductance (LT) and capacitance (CT) for the proposed structure can be obtained from [21]. Therefore, the total inductance (LT) can be obtained from, …”

Section: Circuit Model Of the Proposed Meta-atommentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…The electromagnetic properties of MTM depend on the dimensions of the unit cell, and the working wavelength in the media should be larger than that of the unit cell wavelength [16]. The simulated S-parameters of the unit cell are exported to Math CAD.…”

Section: Unit Cell Analysismentioning

confidence: 99%

A Negative Index Metamaterial to Enhance the Performance of Miniaturized UWB Antenna for Microwave Imaging Applications

et al. 2017

Self Cite

View full text Add to dashboard Cite

Abstract:A new, compact planar wideband negative index metamaterial based on a modified split ring resonator (SRR) is studied to enhance performance of ultrawideband antenna. A compact, metamaterial (MTM)-inspired microstrip antenna is presented for microwave imaging system (MIS) application. Two layers of left-handed metamaterial array (2 × 4) of the unit cell are placed on the radiating patch and the ground plane, respectively. Each left-handed metamaterial (LHM) unit cell was constructed by modifying a square split ring resonator (SRR), resulting in negative permeability and permittivity with a stable negative refractive index. The results shows that it has a significant impact on the performance of conventional patch antenna in terms of transmission co-efficient, efficiency and low loss. Compared to antenna without LHM, it is shown that the bandwidth is significantly broadened up to a few megahertz and becomes more convergent leading to the achievement of desired properties for ultra-wideband (UWB) applications leading to microwave imaging. The proposed MTM antenna structure is fabricated on commercially-available, flame-retardant material of size 26 × 22 × 1.6 mm 3 with 4.6 dielectric constants, due to its low cost and convenience for making multilayer printed circuit boards (PCBs). The antenna achieves 3.1 GHz to 10.71 GHz of impedance bandwidth (−10 dB), which covers the full UWB band. The use of double-layer negative index MTM unit cells enhances UWB performance, and the improved radiation efficiency, nearly directional radiation pattern, acceptable gain, stable surface current and negative refractive index make this MTM antenna a suitable candidate for UWB applications.

show abstract

“…At present, for the rapid growth of modern telecommunication systems the demand of high performance, larger bandwidth and compactness have been increased exponentially. A compact z-shaped double negative metamaterial was exhibited for dual band application [3]. The dimension of the designed DNG metamaterial was 10 Â 10 mm 2 and effective medium ratio (EMR) was 4.0.…”

Section: Introductionmentioning

confidence: 99%