A Dumbbell-Shaped Dual-Band Metamaterial Antenna Using FDTD Technique

Sharma, Sameer; Gupta, Devvrat; Mulchandani, Jai Deep; Chaudhary, Raghvendra Kumar

doi:10.2528/pierl15070106

Cited by 4 publications

(2 citation statements)

References 14 publications

(13 reference statements)

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“…Using this realization, many novel compact and multiband microwave antennas with interesting properties have been proposed [6][7][8][9][10]. Specific examples for compact dual-band antennas are given in [11][12][13][14][15]. Other examples by the authors' group including some attempts to introduce compact dual-band CRLH antennas are presented in different configurations [16][17][18][19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

CPW Dual-Band Antenna Based on Asymmetric Generalized Metamaterial Π Nri Transmission Line for Ultra Compact Applications

Abdalla¹,

Fouad²

2016

PIER C

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Abstract-In this paper, an ultra compact dual-band metamaterial antenna based on a new asymmetric generalized negative refractive index transmission line is introduced. The antenna was designed to support the 900 MHz GSM and 2400 RFID/WiFi bands. Moreover, the antenna size is only (15 × 20 mm 2 ) which is less than (0.08λ g × 0.1λ g ) at the center frequency of the first resonance and (0.22λ g × 0.29λ g ) at the center frequency of the second resonance. The theoretical design steps of the antenna are explained. The dual-band antenna design has been validated using equivalent circuit modelling, electromagnetic full wave simulations and practical measurement. The results illustrate that the antenna has the first resonance centred at 0.9 GHz and the second at 2.4 GHz with 15 dB return loss in the two bands. Good agreements among the circuit modelling, electromagnetic full wave simulation and practical measurements have been achieved.

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Section: Introductionmentioning

confidence: 99%

CPW Dual-Band Antenna Based on Asymmetric Generalized Metamaterial Π Nri Transmission Line for Ultra Compact Applications

Abdalla¹,

Fouad²

2016

PIER C

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“…The study object is the gap or hole formed by the fabric itself, and its structure is completely inconsistent with the structure of the gap and hole of the seaming stitch. In addition to the above studies, the scholars in the field of electrical and electronic studied the calculation of the SE of the shield with interstice [8,9]. However, the interstice structural characteristic of the electrical equipment is significantly different from the gap characteristic of the clothing.…”

Section: Introductionmentioning

confidence: 99%

Computation Model of Shielding Effectiveness of Electromagnetic Shielding Fabrics With Seaming Stitch

Wang¹,

Su²,

Li³

et al. 2017

PIER M

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Abstract-The influence of seaming stitches on the shielding effectiveness (SE) of electromagnetic shielding (EMS) fabric is huge, but there is not an ideal computation model for the SE of the EMS fabric with the seaming stitch at present. This paper proposes a computation model of the SE based on the equivalent seaming gap. Firstly, a structure model of the equivalent seaming gap is constructed according to the equivalent dielectric principle. The computation method of the structural size of the equivalent seaming gap model is determined by the parameters of the stitch length, number of the stitch type, needle number, and sewing thread. A computation model of the SE based on the equivalent seaming gap structure is built according to the EMS theory. The method of the correction coefficient of the model determination is given. Finally, the samples with seaming stitches are made to test the SE using the waveguide method. The computation results with the proposed model are compared with the experimental ones. The results show that the proposed model can well calculate the SE of the EMS fabric with the seaming stitch. The study in this paper can provide a foundation for further study of the influence of seaming stitches on the SE of the EMS fabric and possesses reference significance for the design, production, evaluation and related theoretical research of the EMS clothing.

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